TWI766762B - Radiation therapy system and its safety interlock control method - Google Patents

Abstract

A radiation therapy system and a safety interlock control method thereof. The radiotherapy system includes a system control module, a beam control module, a beam generation device and a first irradiation chamber, the beam generation device includes a beam direction switching component, and the beam generation device is used to generate a beam and pass the beam direction The switch assembly can selectively emit a beam to the first irradiation room, and the control method includes: when the beam generating device emits a beam to the first irradiation room, the beam control module or the system control module is based on the received radiation therapy. The operation data of the system confirms that there is a safety problem in the irradiation of the first irradiation chamber; the beam control module or the system control module controls the beam direction switching component through the beam control module to cut the beam from the first irradiation chamber, which can Improve the safety of radiation therapy systems.

Description

Radiation therapy system and its safety interlock control method

The present invention relates to the technical field of radiotherapy, in particular to a radiotherapy system and a safety interlock control method thereof.

Existing radiotherapy facilities include proton therapy facilities, carbon ion therapy facilities, boron neutron therapy facilities, etc. Most of them use the shield doors or radiation monitoring components of the radiation room to build a safety interlock mechanism, that is, if the shield door of the radiation room for treatment is not When it is turned off or the radiation monitoring value exceeds the limit, the treatment beam generator will automatically stop immediately to ensure the safety of personnel. Although this design can play a certain protective role, there are still some serious drawbacks. For example, the factors involved in the safety interlock are relatively simple. However, in reality, the state of the beam generating devices (such as accelerators, accelerator aids, and targets) will also affect the treatment process. If these devices or components are used during the treatment process Abnormalities will directly affect the treatment results, or cause damage to personnel and equipment. At the same time, when an emergency occurs during the treatment, if the patient has an abnormality and needs to enter the irradiation room for treatment in time, it is necessary to shut down the beam generating device first, and then open the door to enter the treatment, and enter the irradiation before the beam generating device is completely shut down. In addition, shutting down beam generators takes time, delays emergency handling, and forcibly shutting down beam generators can adversely affect the service life of these treatment facilities .

In order to solve the above technical problems, the embodiments of the present invention provide a radiation therapy system and a safety interlocking control method thereof, which can improve the security of the radiation therapy system.

In a first aspect of the embodiments of the present invention, the embodiments of the present invention provide a safety interlock control method for a radiotherapy system, where the radiotherapy system includes a system control module, a beam control module, a beam generating device, and a first irradiation chamber, the beam generating device includes a beam direction switching component, the beam generating device is used for generating a beam and selectively emits the beam to the first irradiation chamber through the beam direction switching component, the control method includes: when the beam generating device When transmitting the beam to the first irradiation room, the beam control module or the system control module determines that there is a safety problem in the irradiation of the first irradiation room according to the received operation data of the radiotherapy system; the beam control module or the system control module The module controls the beam direction switching component through the beam control module to cut the beam away from the first irradiation chamber.

In an embodiment of the present invention, the above-mentioned safety interlock control method further includes: before the beam generating device emits the beam to the first irradiation room, when the beam control module or the system control module according to the received radiotherapy system When it is determined that there is no safety problem in the upcoming irradiation of the first irradiation chamber, the beam control module or the system control module controls the beam generating device to emit a beam to the first irradiation chamber through the beam control module.

In an embodiment of the present invention, the radiotherapy system further includes a second irradiation chamber, wherein the beam control module or the system control module controls the beam direction switching component through the beam control module to switch the beam from the first irradiation Before the room is cut off, the above-mentioned safety interlock control method further includes: the beam control module or the system control module determines that there is no safety problem in the second irradiation room according to the received operation data of the radiotherapy system, wherein the beam control module The group or system control module controls the beam direction switching component to cut the beam from the first irradiation chamber through the beam control module, including: the beam control module or the system control module controls the beam through the beam control module direction switch The assembly switches the beam from the first irradiation chamber to the second irradiation chamber.

In an embodiment of the present invention, the radiotherapy system further includes a beam collection device, wherein the beam control module or the system control module controls the beam direction switching component through the beam control module to direct the beam from the first irradiation chamber Cutting off includes: the beam control module or the system control module controls the beam direction switching component through the beam control module to switch the beam from the first irradiation chamber to the beam collection device.

In an embodiment of the present invention, the radiotherapy system further includes a screen door of the first irradiation room, a radiation monitoring component, a patient state monitoring component and an activity monitoring component disposed in the first irradiation room, and the operation data of the radiotherapy system includes the first radiation monitoring component. Operational data of a screen door of an irradiation room or operational data of a radiation monitoring module or operational data of a patient condition monitoring module or operational data of an activity monitoring module, wherein the beam control module or system control module is based on the received radiation therapy The operation data of the system, to determine that there is a safety problem in the irradiation of the first irradiation room, include: when the system control module receives the open status data or open signal data of the screen door of the first irradiation room, determine the first irradiation room. There is a safety problem in the irradiation; or when the first monitoring value of the radiation monitoring component received by the system control module exceeds the first preset range, it is determined that there is a safety problem in the irradiation of the first irradiation room; or when the system control module receives a safety problem When the second monitoring value of the patient state monitoring component exceeds the second preset range or the abnormal signal data of the patient, it is determined that there is a safety problem in the irradiation of the first irradiation room; or when the system control module receives the third monitoring of the activity monitoring component When the value exceeds the third preset range or the signal data of abnormal activity, it is determined that there is a safety problem in the irradiation of the first irradiation room.

In an embodiment of the present invention, the beam generating device further includes a charged particle beam generating part, a first neutron beam generating part, and a beam monitoring component, and the beam direction switching component is optional The charged particle beam generated by the charged particle beam generation unit is transmitted to the first neutron beam generation unit to irradiate the neutron beam into the first irradiation chamber, the charged particle beam generation unit includes an ion source, an accelerator and accelerator auxiliary equipment, and the radiotherapy system also Including a charged particle beam generation chamber containing a charged particle beam generation section, a beam transfer chamber containing a beam direction switching assembly, a screen door of the charged particle beam generation chamber, and a screen door of the beam transfer room, wherein the operation of the radiotherapy system Data includes operational data of ion source or operational data of accelerator or operational data of accelerator auxiliary equipment or operational data of beam monitoring module or operational data of shielded door of charged particle beam generation chamber or operational data of shielded door of beam transmission chamber Or the operation data of the first neutron beam generator or the operation data of the beam direction switching component, wherein the beam control module or the system control module determines the operation data of the first irradiation chamber according to the received operation data of the radiotherapy system. There is a safety problem in the irradiation, including: when the beam control module or the system control module judges that the operation data of the ion source is abnormal or the operation data of the ion source exceeds the fourth preset range, determining the operation of the first irradiation chamber. There is a safety problem in the irradiation; or when the beam control module or the system control module judges that the operation data of the accelerator is abnormal or the operating data of the accelerator exceeds the fifth preset range, it is determined that the irradiation of the first irradiation chamber is safe. problem; or when the beam control module or the system control module judges that the operation data of the accelerator auxiliary equipment is abnormal or the operation data of the accelerator auxiliary equipment exceeds the sixth preset range, it is determined that the irradiation of the first irradiation chamber exists. safety problem; or when the fourth monitoring value of the beam monitoring component received by the beam control module or the system control module exceeds the seventh preset threshold, it is determined that there is a safety problem in the irradiation of the first irradiation room; or when the system controls When the module receives the open status data or open signal data of the screen door of the charged particle beam generation room or the screen door of the beam transmission room, it determines that there is a safety problem in the irradiation of the first irradiation room; or when the system control module according to The received operation data of the first neutron beam generator is abnormal or the operation of the first neutron beam generator is judged When the data exceeds the eighth preset range, it is determined that there is a safety problem in the irradiation of the first irradiation room; or when the beam control module or the system control module judges that it is abnormal according to the received operation data of the beam direction switching component, determine There is a safety problem in the irradiation of the first irradiation chamber.

In an embodiment of the present invention, the radiotherapy system further includes a treatment plan module, wherein the operation data of the radiotherapy system includes treatment plan data retrieved by the system control module from the treatment plan module, wherein the above-mentioned radiation therapy The beam control module or the system control module determines that there is a safety problem in the irradiation of the first irradiation room according to the received operating data of the radiotherapy system, including: when the system control module is based on the irradiation data of the patient in the first irradiation room and the When the comparison of the received treatment plan data determines that the treatment plan for the patient in the first irradiation room is completed, it is determined that there is a safety problem in the irradiation of the first irradiation room.

In a second aspect of the embodiments of the present invention, the embodiments of the present invention provide a radiotherapy system, including: a first irradiation chamber; a beam generating device, the beam generating device includes a beam direction switching component, and the beam generating device is used for generating a beam and selectively transmitting the beam to the first irradiation room through the beam direction switching assembly; the system control module is used for, when the beam generating device emits the beam to the first irradiation room, according to the received radiation therapy The operation data of the system determines that there is a safety problem in the irradiation of the first irradiation chamber; the beam control module is used to receive the control instructions of the system control module, and to control the beam generating device to cut the beam from the first irradiation chamber; Or when the beam generating device emits a beam to the first irradiation room, the beam control module determines that there is a safety problem in the irradiation of the first irradiation room according to the received operating data of the radiotherapy system, and controls the beam generating device to The beam is cut away from the first irradiation chamber.

In an embodiment of the present invention, the beam generating device further includes a charged particle beam generating part, a first neutron beam generating part, and a beam monitoring component, and the beam direction switching component is optional The charged particle beam generated by the charged particle beam generation unit is transmitted to the first neutron beam generation unit to irradiate the neutron beam into the first irradiation chamber, the charged particle beam generation unit includes an ion source, an accelerator and accelerator auxiliary equipment, and the radiotherapy system also Including a charged particle beam generation chamber accommodating a charged particle beam generation section, a beam transfer chamber accommodating a beam direction switching assembly, a shield door of the charged particle beam generation chamber, a shield door of the beam transmission chamber, and a shield of the charged particle beam generation chamber The door, the screen door of the beam transmission room and the first neutron beam generator are respectively connected with the system control module and perform data exchange to determine whether there is a safety problem in the irradiation of the first irradiation room. The ion source, accelerator, accelerator auxiliary equipment, The beam monitoring component and the beam direction switching component are respectively connected with the system control module and the beam control module and perform data exchange, so that the beam control module or the system control module can judge whether there is a safety problem in the irradiation of the first irradiation room .

In an embodiment of the present invention, the radiation therapy system further includes a screen door of the first irradiation room, a radiation monitoring component, a patient state monitoring component, an activity monitoring component, a treatment plan module, and a therapeutic meter disposed in the first irradiation room. The drawing module is used to store the treatment plan of the patient. The treatment plan module, the screen door of the first irradiation room, the radiation monitoring component, the patient state monitoring component and the activity monitoring component are connected with the system control module and perform data exchange to facilitate the The system control module determines whether there is a safety problem in the irradiation of the first irradiation chamber.

According to the technical solution provided by the embodiment of the present invention, when it is determined that there is a safety problem in the irradiation of the first irradiation chamber according to the received operating data of the radiotherapy system, the beam direction switching component is controlled to cut off the beam from the first irradiation chamber, The beam can be quickly cut off from the first irradiation room without shutting down the beam generating device, so that the safety problem of the first irradiation room can be solved in time, and the safety of the radiotherapy system can be improved at the same time. The lifetime of the beam generator.

100: Beam irradiation system

101: The first irradiation room

101': Second irradiation room

102: Charged Particle Beam Generation Chamber

103: Beam Delivery Room

10: Beam generation device

11: Charged Particle Beam Generation Section

111: Ion source

112: Accelerator

113: Accelerator Auxiliary Equipment

12: Beam transmission part

121: Beam Direction Switching Assembly

13: First Neutron Generation Section

131: Target

132: Beam Shaper

133: Collimator

13': Second Neutron Generation Section

14: Beam Monitoring Components

20: Beam Control Module

30: System control module

40, 40': treatment table

50, 50': Radiation Monitoring Components

60, 60': Patient status monitoring components

70, 70': Activity monitoring components

80: Treatment Plan Module

90: Beam collection device

200: patient

700: Safety Interlock Control System

710: Process Components

720: Memory

A, B, C, E1, E2: screen door

D1, D2: deflection magnet

M: tumor cells

N: Neutron beam

P: charged particle beam

FIG. 1 is a block diagram of a radiotherapy system according to an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a radiotherapy system for treating a patient according to another embodiment of the present invention.

FIG. 3 is a schematic flowchart of a safety interlock control method for a radiation therapy system according to an embodiment of the present invention.

FIG. 4 is a block diagram of a radiotherapy system according to another embodiment of the present invention.

FIG. 5 is a schematic layout diagram of a radiation therapy system according to another embodiment of the present invention.

FIG. 6 is a schematic flowchart of a safety interlock control method for a radiation therapy system according to another embodiment of the present invention.

FIG. 7 is a block diagram of a safety interlock control system of a radiation therapy system according to an embodiment of the present invention.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

FIG. 1 is a block diagram of a radiotherapy system according to an embodiment of the present invention. As shown in FIG. 1 , the radiotherapy system 100 includes a first irradiation chamber 101 , a beam generating device 10 , a beam control module 20 and a system control module 30 . The beam generator 10 can generate a therapeutic beam and emits a beam to the first irradiation chamber 101, the first irradiation chamber 101 can exchange data with the system control module 30, and the beam generating device 10 can exchange data with the beam control module 20 or the system control module 30, The system control module 30 can also perform data interaction with the beam control module 20 . The system control module 30 can transmit the data input by the operator such as the doctor or the received and stored data of the beam generating device 10 and the first irradiation room 101 to the beam control module 20 to control the beam generating device 10 to the first irradiation chamber. An irradiation chamber 101 emits the beam.

As shown in FIG. 2 , in an embodiment of the present invention, the beam generating device 10 is a neutron beam generating device, including a charged particle beam generating unit 11 , a beam transmitting unit 12 and a first neutron beam generating unit 13 . The beam control module 20 or the system control module 30 can control the charged particle beam generation unit 11 to generate the charged particle beam P through the beam control module 20 and can control the beam transmission unit 12 to charge the charged particle beam generated by the charged particle beam generation unit 11 . The particle beam P is transmitted to the first neutron beam generation section 13, and the beam transmission section 12 is configured by a transmission tube. The first neutron generator 13 corresponds to the first irradiation chamber 101 (not shown in the figure), and the charged particle beam P acts on the first neutron beam generator 13 to generate a therapeutic neutron beam N and irradiates the first irradiation chamber The patient 200 on the treatment table 40 set in 101 performs irradiation therapy on the patient 200 , such as performing boron neutron capture therapy on the tumor cells M in the patient 200 . It should be understood that the generated neutron beam can also be used for other purposes, which is not specifically limited in the present invention; the beam generating device 10 can also be other radiation generating devices, then the charged particle beam generating unit 11 and the neutron beam generating unit 13 It can be replaced or canceled accordingly. For example, the charged particle beam P generated by the charged particle beam generator 11 is directly transmitted to the first irradiation chamber 101 for irradiation with the charged particle beam P, and the charged particle beam P is used for treatment or other purposes. The invention is not limited to this.

The beam control module 20 or the system control module 30 can receive the operation data of the radiotherapy system 100 and judge whether there is a safety problem based on the data. Specifically, the beam control module The system control module 30 can receive the operation data of the beam generation device 10 (the charged particle beam generation part 11 or the beam transmission part 12 ), and the system control module 30 can receive the operation data of the beam generation device 10 or the first irradiation chamber 101 . As shown in Figure 3, a safety interlock control method according to an embodiment of the present invention is as follows:

S301: Before the beam generating device 10 emits a beam to the first irradiation chamber 101 (eg, before generating the therapeutic neutron beam N and irradiating the first irradiation chamber 101), the beam control module 20 or the system control module 30 According to the received operation data of the radiotherapy system 100 , it is determined whether there is a safety problem in the irradiation of the first irradiation room 101 to be started.

S302: According to the judgment result of S301, when it is determined that there is a safety problem in the irradiation of the first irradiation chamber 101 to be started, the safety interlock mechanism is triggered, and the beam control module 20 or the system control module 30 passes the beam control module 20. The beam generating device 10 can be controlled to prohibit the emission of the beam to the first irradiation chamber 101 and the initiation of irradiation treatment in the first irradiation chamber 101 , for example, the charged particle beam P generated by the charged particle beam generator 11 can be prohibited.

S303: According to the judgment result of S301, when it is determined that there is no safety problem in the upcoming irradiation of the first irradiation chamber 101, the beam control module 20 or the system control module 30 controls the beam generation device 10 through the beam control module 20 The beam is sent to the first irradiation chamber 101 to start the irradiation treatment in the first irradiation chamber 101 , for example, the charged particle beam generator 11 is controlled to generate the charged particle beam P and the first irradiation chamber 101 is generated by interacting with the first neutron beam generator 13 The treatment neutron beam N required by the patient 200 currently to be irradiated is irradiated into the first irradiation chamber 101 .

S304: When the beam generating device 10 in S303 emits a beam to the first irradiation chamber 101 (for example, when the neutron beam N for treatment is generated and starts to irradiate into the first irradiation chamber 101), the beam control module 20 or the system controls The module 30 determines whether there is a safety problem in the irradiation of the first irradiation room 101 according to the received operation data of the radiotherapy system 100 .

S305 : According to the judgment result of S304 , when it is determined that there is no safety problem in the irradiation of the first irradiation chamber 101 , the first irradiation chamber 101 is continuously irradiated, that is, the beam generating device 10 is controlled to continuously emit beams to the first irradiation chamber 101 .

S306: According to the judgment result of S304, when it is determined that there is a safety problem in the irradiation of the first irradiation chamber 101, the safety interlock mechanism is triggered, and the beam control module 20 or the system control module 30 can control the irradiation through the beam control module 20. The beam generating device 10 stops emitting a beam to the first irradiation chamber 101 , and ends the irradiation treatment in the first irradiation chamber 101 , for example, by controlling the charged particle beam generator 11 to stop generating the charged particle beam P.

It should be understood that the control of the safety interlock may also be performed only during or before irradiation.

In an embodiment of the present invention, as shown in FIG. 4 , the charged particle beam generating unit 11 includes an ion source 111 , an accelerator 112 and an accelerator auxiliary device 113 , which is not specifically limited in the present invention. The ion source 111 is used to generate charged particles, such as H-, protons, deuterons, etc.; it should be understood that the ion source 111 can be a sputtering ion source, a high-frequency ion source, a dual plasma ion source, a Penning ion source, etc. The invention does not specifically limit the type of ion source. In one embodiment, the ion source 111 includes air supply equipment, ionization equipment, water cooling equipment, etc., which are not specifically limited in the present invention.

The accelerator 112 accelerates the charged particles generated by the ion source 111 to obtain a charged particle beam P with required energy, such as a proton beam; it should be understood that the accelerator 112 can be a linear accelerator, a cyclotron, a synchrotron, a synchrocyclotron, etc. The present invention The type of accelerator is not particularly limited. In one embodiment, the accelerator 112 includes pre-acceleration equipment, front and rear vacuum chambers, high-energy acceleration equipment, etc. The pre-acceleration equipment and the high-energy acceleration equipment are constructed of acceleration pipes, valves, electromagnets, etc., which are not specifically limited in the present invention.

The accelerator auxiliary device 113 may include any auxiliary device for providing a prerequisite for the operation of the accelerator 112 . In one embodiment, the accelerator auxiliary device 113 includes a water cooling device for providing accelerator cooling water, an air compressor device for providing compressed air, an air supply device for providing insulating gas, a vacuum pump for providing a vacuum environment, etc., which are not specifically limited in the present invention.

The ion source 111 , the accelerator 112 and the accelerator auxiliary device 113 can be respectively connected to the beam control module 20 or the system control module 30 and exchange data to facilitate the beam control module 20 or the system control module 30 to determine the first irradiation chamber Whether there is a safety problem in the irradiation of 101, that is, the operation data of the radiotherapy system 100 includes the operation data of the charged particle beam generation unit 11, and the operation data of the charged particle beam generation unit 11 further includes the ion source 111, the accelerator 112 and the accelerator auxiliary equipment 113. operating data. For example, the operating data of the ion source 111, such as the air pressure of the air supply, the current and voltage of the ionization device, the particle intensity of the ion source outlet, the cooling water temperature of the water cooling device, the water flow rate, and the water pressure, can be transmitted to the beam control module. 20 or the system control module 30; the operating data of the accelerator 112, such as the beam intensity and insulating gas pressure in the acceleration pipeline, the current of the electromagnet, the vacuum degree of the front and rear vacuum chambers, etc., can also be transmitted to the beam control module 20 or the system control module 30; the operating data of the accelerator auxiliary equipment 113, such as the air pressure of the air compressor equipment, the cooling water temperature of the water cooling equipment, the water flow rate and water pressure, the insulating gas pressure of the air supply equipment, etc., can also be transmitted to the ejector. The beam control module 20 or the system control module 30 can also transmit the total fault signal of the ion source 111, the accelerator 112 and the accelerator auxiliary equipment 113 to the beam control module 20; the present invention does not specifically limit the content of data interaction.

The beam control module 20 or the system control module 30 determines that there is a safety problem and performs safety interlocking according to the received operation data of the radiotherapy system 100 , including transmitting the beam from the beam generating device 10 to the first irradiation room 101 before or sending the beam to the first irradiation chamber 101 When the beam control module 20 or the system control module 30 judges that the operation data is abnormal or the operation data exceeds the limit according to the received operation data of the charged particle beam generator 11, and determines that there is a safety problem, the safety interlock mechanism is triggered.

Before the beam generating device 10 emits a beam to the first irradiation chamber 101 , when the beam control module 20 or the system control module 30 judges that the operation data is abnormal or the operation data exceeds the operating data according to the received operation data of the charged particle beam generation part 11 . The time limit includes: the operating data of the ion source 111, such as the supply air pressure exceeding the preset range, or the current or voltage of the ionization device exceeding the preset range, or the particle intensity at the outlet of the ion source exceeding the preset range, or the cooling of the water cooling device The water temperature, water flow rate or water pressure exceeds the preset range, etc.; or the operating data of the accelerator 112, such as the beam intensity or insulating gas pressure in the acceleration pipeline exceeds the preset range, or the current of the electromagnet exceeds the preset range, or The vacuum degree of the vacuum chamber exceeds the preset range, etc.; or the operation data of the accelerator auxiliary equipment 113, such as the air pressure of the air compressor equipment exceeds the preset range, or the cooling water temperature or water flow rate or water pressure of the water cooling equipment exceeds the preset range, Or the insulating gas pressure of the gas supply equipment exceeds the preset range, and it is determined that there is a safety problem in the upcoming irradiation of the first irradiation chamber 101, that is, the safety interlock mechanism is triggered, and the beam control module 20 or the system control module 30 passes the beam. The control module 20 can control the beam generating device 10 to prohibit the emission of the beam to the first irradiation chamber 101, and prohibit the first irradiation chamber 101 from starting irradiation treatment; in one embodiment, the ion source 111, the accelerator 112 and the accelerator auxiliary equipment can also be set 113 The total fault signal, when the beam control module 20 receives the total fault signal of the ion source 111, the accelerator 112 and the accelerator auxiliary equipment 113, it indicates that the device is faulty, generally a major fault, and determines the upcoming irradiation of the first irradiation chamber 101 There is a safety problem, that is, the safety interlock mechanism is triggered. After receiving the fault signal, the beam control module 20 can prohibit the charged particle beam generator 11 from generating the charged particle beam P, and prohibit the first irradiation room 101 from starting irradiation therapy.

When the beam generating device 10 emits a beam to the first irradiation chamber 101 , when the beam control module 20 or the system control module 30 judges that the operation data is abnormal or the operation data exceeds the received operation data of the charged particle beam generation part 11 The time limit includes: the operating data of the ion source 111, such as the supply air pressure exceeding the preset range, or the current or voltage of the ionization device exceeding the preset range, or the particle intensity at the outlet of the ion source exceeding the preset range, or the cooling of the water cooling device The water temperature, water flow rate or water pressure exceeds the preset range, etc.; or the operating data of the accelerator 112, such as the beam intensity or insulating gas pressure in the acceleration pipeline exceeds the preset range, or the current of the electromagnet exceeds the preset range, or The vacuum degree of the vacuum chamber exceeds the preset range, etc.; or the operation data of the accelerator auxiliary equipment 113, such as the air pressure of the air compressor equipment exceeds the preset range, or the cooling water temperature or water flow rate or water pressure of the water cooling equipment exceeds the preset range, Or the insulating gas pressure of the gas supply equipment exceeds the preset range, it is determined that there is a safety problem in the irradiation of the first irradiation chamber 101, and the safety interlock mechanism is triggered, and the beam control module 20 or the system control module 30 passes through the beam control module 20. The beam generating device 10 can be controlled to stop emitting beams to the first irradiation chamber 101 and end the irradiation treatment in the first irradiation chamber 101; The fault signal is generally a major fault. It is determined that there is a safety problem in the irradiation of the first irradiation chamber 101, that is, the safety interlock mechanism is triggered. After receiving the fault signal, the beam control module 20 can control the charged particle beam generator 11 to stop generating charged particles. For the particle beam P, for example, the ion source 111 is turned off or the accelerator 112 is turned off, and the irradiation treatment in the first irradiation chamber 101 is ended.

Since the charged particle beam generator is the source for generating the neutron beam for treatment, the accelerator is an important device for generating the required charged particle beam. When an abnormality occurs, it will directly lead to problems with the beam acting on the patient, which will directly affect the therapeutic effect or affect the treatment. Personnel and equipment can be damaged, so it is extremely important as a safety interlock factor.

5, in another embodiment of the present invention, the radiotherapy system 100 further includes a second irradiation chamber 101', and the beam generating device 10 further includes a second neutron beam corresponding to the second irradiation chamber 101' The generation part 13', the beam transmission part 12 includes a beam direction switching assembly 121, and the beam transmission part 12 selectively transmits the charged particle beam P generated by the charged particle beam generation part 11 to the first The neutron beam generator 13 or the second neutron beam generator 13' emits a beam into the first irradiation chamber 101 or the second irradiation chamber 101'. It should be understood that the neutron beam N irradiated into the second irradiation chamber 101 ′ can be used for the treatment of another patient irradiated by the neutron beam N on the treatment couch 40 ′ in the second irradiation chamber 101 ′, and can also be irradiated with the neutron beam N. For sample detection, etc., the present invention is not limited to this; when the beam generating device 10 is another radiation generating device, the second neutron beam generating part 13 ′ can also be replaced accordingly, and the beam transmitting part 12 passes through the beam direction switching component 121 The beam can be selectively emitted into the first irradiation chamber 101 or the second irradiation chamber 101'.

It should be understood that other configurations of the beam generating device 10 are possible. For example, when there is a third irradiation chamber, a third neutron beam generation part can be added to correspond to the third irradiation chamber, and the number of neutron beam generation parts corresponds to the number of irradiation chambers. In this embodiment of the present invention, the neutron beam generation part The number of neutron beam generators is not specifically limited; setting one charged particle beam generator to transmit to each neutron beam generator can effectively reduce the system cost. It can be understood that the beam generator can also include multiple charged particle beam generators to transmit In each neutron beam generating section, a plurality of neutron beams can be simultaneously generated and irradiated in a plurality of irradiation chambers.

In an embodiment of the present invention, the beam direction switching component 121 includes a deflection magnet (not shown) for deflecting the charged particle beam in the P direction. If the deflection magnet corresponding to the first irradiation chamber 101 is turned on, the beam will be guided into To the first irradiation chamber 101, the present invention does not specifically limit it. The beam transmission section 12 may further include a beam adjustment section (not shown) for the charged particle beam P, the beam The adjustment section includes a horizontal steering gear and a horizontal vertical steering gear for adjusting the axis of the charged particle beam P, a quadrupole electromagnet for suppressing the divergence of the charged particle beam P, and a quadrupole for shaping the charged particle beam P cutter, etc. The beam transmission unit 12 may further include a charged particle beam scanning unit (not shown) as needed, and the charged particle beam scanning unit scans the charged particle beam P and irradiates the charged particle beam P with respect to the neutron beam generating units 13 and 13 ′. Control, such as controlling the irradiation position of the charged particle beam P relative to the target 131 (as described below).

The beam transmission unit 12 can be respectively connected with the system control module 30 or the beam control module 20 and perform data exchange, so that the beam control module 20 or the system control module 30 can determine whether the irradiation of the first irradiation room 101 is safe or not The problem is that the operating data of the radiation therapy system 100 includes the operating data of the beam delivery section 12 . For example, the vacuum degree of the transfer tube, the voltage of the magnet, the temperature of the magnet, the state (such as the conduction state) of the beam direction switching component 121 can be transmitted to the system control module 30 or the beam control module 20, the present invention The content of data interaction is not specifically limited.

The beam control module 20 or the system control module 30 determines that there is a safety problem and performs safety interlocking according to the received operation data of the radiotherapy system 100 , including transmitting the beam from the beam generating device 10 to the first irradiation room 101 Before or when the beam is emitted to the first irradiation room 101, when the beam control module 20 or the system control module 30 judges that the operation data of the beam transmission part 12 is abnormal or the operation data exceeds the limit, it is determined that there is a safety The problem is that the safety interlock mechanism is triggered.

Before the beam generating device 10 emits the beam to the first irradiation chamber 101 , when the beam control module 20 or the system control module 30 judges that the operation data is abnormal or the operation data exceeds the limit according to the received operation data of the beam transmission unit 12 When the vacuum level of the transfer tube exceeds the preset range or the electro- If the pressure exceeds the preset range or the temperature of the magnet exceeds the preset range, or the status data of the beam direction switching component 121 shows that the beam direction switching component 121 does not conduct the beam to the first irradiation chamber 101, the first irradiation chamber to be started is determined. There is a safety problem in the irradiation of 101, that is, the safety interlock mechanism is triggered, and the beam control module 20 or the system control module 30 can control the beam generator 10 through the beam control module 20 to prohibit the emission of the beam to the first irradiation room 101. , the first irradiation room 101 is prohibited from starting irradiation treatment.

When the beam generating device 10 emits a beam to the first irradiation chamber 101 , when the beam control module 20 or the system control module 30 judges that the operation data is abnormal or the operation data exceeds the limit according to the received operation data of the beam transmission unit 12 When the vacuum degree of the transfer tube exceeds the preset range or the voltage of the magnet exceeds the preset range or the temperature of the magnet exceeds the preset range or the status data of the beam direction switching component 121 shows that the beam direction switching component 121 does not conduct the beam To the first irradiation room 101, it is determined that there is a safety problem in the irradiation of the first irradiation room 101, that is, the safety interlock mechanism is triggered, and the beam control module 20 or the system control module 30 can control the beam generation through the beam control module 20. The apparatus 10 stops transmitting the beam to the first irradiation chamber 101 , and the irradiation treatment in the first irradiation chamber 101 is ended.

The beam transmission part transmits the beam to the irradiation room that needs to be treated, for example, transmits the charged particle beam to the neutron beam generation part corresponding to the irradiation room that needs to be treated, so as to generate a neutron beam for treatment in the irradiation room. Abnormalities in the beam transmission section may cause beams to be generated in other irradiation rooms or fail to produce correct beams in the irradiation room that requires treatment, resulting in serious safety accidents or affecting the treatment effect. Therefore, it is also useful as a safety interlock factor. important meaning.

In an embodiment of the present invention, as shown in FIG. 2 , the first neutron beam generating part 13 may include a target 131 , a beam shaping body 132 and a collimator 133 , which is not specifically limited in the present invention. For example, the charged particle beam P generated by the accelerator 112 is irradiated to the target 131 through the beam transmission part 11 and interacts with the target 131 to generate neutrons, and the generated neutrons pass through the beam shaper 132 and the collimator in turn. The neutron beam N is formed at 133 and irradiated to the patient 200 on the treatment table 40 provided in the first irradiation chamber 101 . The target material 131 can be a metal target material, such as a lithium target or a beryllium target, which generates neutrons by nuclear reaction of 9 Be(p,n)9B or 7Li(p,n)7Be with the proton beam. The material is not specifically limited. There can be multiple collimators 133 with different sizes, shapes, etc., so as to adapt to different patients to be irradiated. In one embodiment, an identification mechanism is set on the collimator 133, and the system control module 30 can automatically identify and obtain the The model data of the collimator 133, or the operator such as the doctor manually inputs the model data of the collimator 133 according to the identification mechanism and transmits it to the system control module 30, or the operator such as the doctor judges the inconsistency according to the identification mechanism The inconsistent signal is sent to the system control module 30 . The specific structures of the target 131 , the beam shaping body 132 and the collimator 133 are not described in detail here. The second neutron beam generation part 13' may have the same structure as the first neutron beam generation part 13, which is not specifically limited in the present invention.

The first neutron beam generator 13 can be connected to the system control module 30 and perform data exchange, so that the system control module 30 can determine whether there is a safety problem in the irradiation of the first irradiation room 101 , that is, the operation data of the radiotherapy system 100 includes the first neutron beam. Operation data of the neutron beam generating unit 13 . For example, data such as the service life of the target material 131, the temperature of the target material 131, the model data of the collimator 133 or the inconsistent signal data of the collimator can be transmitted to the system control module 30. The present invention does not affect the content of data interaction. Specific restrictions.

The beam control module 20 or the system control module 30 determines that there is a safety problem and performs safety interlocking according to the received operation data of the radiotherapy system 100 , including transmitting the beam from the beam generating device 10 to the first irradiation room 101 Before or when the beam is emitted to the first irradiation chamber 101, when the system control module 30 judges that the operation data is abnormal or the operation data exceeds the limit according to the received operation data of the first neutron beam generator 13, it is determined that there is a safety problem, that is, the trigger is triggered. Safety interlock mechanism.

Before the beam generator 10 emits a beam to the first irradiation chamber 101 , when the system control module 30 judges that the operation data of the first neutron beam generator 13 is abnormal or the operation data exceeds the limit, such as the target If the service life of the material 131 is not enough to complete the next treatment, or the temperature of the target material 131 exceeds the preset range, or the model data of the collimator 133 shows inconsistent signal data with the current patient to be irradiated or the collimator is inconsistent, determine the upcoming first treatment There is a safety problem in the irradiation of an irradiation chamber 101, that is, a safety interlock mechanism is triggered. The system control module 30 can control the beam generating device 10 through the beam control module 20 to prohibit the emission of beams to the first irradiation chamber 101 and the first The irradiation room 101 starts the irradiation treatment.

When the beam generating device 10 transmits a beam to the first irradiation chamber 101, when the system control module 30 judges that the operation data of the first neutron beam generating part 13 is abnormal or the operation data exceeds the limit, the target If the service life of the material 131 exceeds the preset range or the temperature of the target material 131 exceeds the preset range, it is determined that there is a safety problem in the irradiation of the first irradiation chamber 101, that is, the safety interlock mechanism is triggered, and the system control module 30 controls the beam through the beam control module. 20. The beam generating device 10 can be controlled to stop emitting beams to the first irradiation room 101, and the irradiation treatment in the first irradiation room 101 can be ended.

The neutron beam generator is extremely critical for generating the neutron beam for treatment and obtaining the beam quality that meets the needs of treatment. It is incorporated into the safety interlock factor to ensure the treatment effect.

In another embodiment of the present invention, as shown in FIGS. 4 and 5 , the radiotherapy system 100 further includes a charged particle beam generation chamber 102 that accommodates the charged particle beam generation unit 11 , and at least partially accommodates the beam transmission unit 12 (eg, The beam transmission chamber 103 , the screen door A (B) of the charged particle beam generation chamber 102 , and the screen door C of the beam transmission chamber 103 , which accommodate the beam direction switching assembly 121 ), are not specifically limited in the present invention. The status data of the opening or closing of the screen door can be sent to the system control module 30, or it can be a signal for the operator to open the screen door according to the observed situation Sent to the system control module 30 . The screen door A (B) of the charged particle beam generation chamber 102 and the screen door C of the beam transmission chamber 103 are respectively connected to the system control module 30 and perform data exchange so that the system control module 30 can judge the irradiation of the first irradiation chamber 101 Whether there is a safety issue, that is, the operating data of the radiotherapy system 100 includes the operating data of the screen door A(B) of the charged particle beam generation room 102 and the screen door C of the beam transmission room 103 . For example, the open or closed state data or open signal data of the screen door A (B) of the charged particle beam generation chamber 102 or the screen door C of the beam transmission chamber 103 can be transmitted to the system control module 30, the present invention The content of data interaction is not specifically limited. The charged particle beam generation chamber 102 is usually installed in a space of two floors, and the charged particle beam generation chamber screen door A and the charged particle beam generation chamber screen door B are respectively provided on the two floors. It can be understood that other settings are also possible.

The beam control module 20 or the system control module 30 determines that there is a safety problem in the irradiation of the first irradiation room 101 according to the received operation data of the radiotherapy system 100 and performs safety interlocking, including:

Before the beam generating device 10 emits the beam to the first irradiation chamber 101, when the system control module 30 generates the screen door A (B) of the chamber 102 or the screen door C of the beam transmission chamber 103 according to the received charged particle beam When it is judged that the operation data is abnormal, such as the open status data or open signal data of screen door A, screen door B or screen door C, it is determined that there is a safety problem in the upcoming irradiation of the first irradiation room 101, that is, the safety link is triggered. lock mechanism, the system control module 30 can control the beam generating device 10 to prohibit the emission of the beam to the first irradiation room 101 through the beam control module 20, and prohibit the first irradiation room 101 from starting irradiation treatment;

When the beam generating device 10 emits a beam to the first irradiation chamber 101, when the system control module 30 generates a beam according to the received charged particle beam, the screen door A (B) of the chamber 102 or the beam transmission When the operation data of the screen door C of the input room 103 is judged to be abnormal, such as the open status data or the open signal data of the screen door A, screen door B or screen door C, it is determined that there is a safety problem in the irradiation of the first irradiation room 101, That is, the safety interlock mechanism is triggered, and the system control module 30 can control the beam generator 10 to stop emitting beams to the first irradiation room 101 through the beam control module 20 , and end the irradiation treatment in the first irradiation room 101 .

The beam generating device will generate high-energy radiation during operation. The shielded doors of the charged particle beam generating room and the beam transmission room are closed during irradiation therapy to ensure the safety of personnel and avoid radiation pollution. It is necessary to incorporate it into the safety interlock factor.

In one embodiment, the beam generating apparatus 10 further includes a beam monitoring component 14, and the beam monitoring component 14 may include a charged particle beam monitoring component or a neutron beam monitoring component, which is not specifically limited in the present invention. As shown in FIG. 4 , in this embodiment, the beam monitoring component 14 is a charged particle beam monitoring component, which is arranged in the beam transmission chamber 103 , such as on the inner wall of the transmission tube of the beam transmission part 12 , by measuring the charged particle beam. It should be understood that the charged particle beam intensity monitoring component 14 can also be arranged in the charged particle beam generation chamber 102, such as the ion source 111 or the corresponding equipment of the accelerator 112; it can also monitor the charged particle beam P voltage, energy, etc. The neutron beam monitoring component can be disposed in the first neutron beam generating part 13, such as monitoring the intensity of the neutron beam by measuring the radiation generated at the target 131, and can also be disposed at the neutron beam exit or the beam shaping body. The present invention does not specifically limit the number and arrangement position of the beam monitoring components 14 .

The beam monitoring component 14 can be connected with the beam control module 20 or the system control module 30 and perform data exchange, so that the beam control module 20 or the system control module 30 can determine whether there is a safety problem in the irradiation of the first irradiation room 101 , that is, the operation data of the radiation therapy system 100 includes the operation data of the beam monitoring assembly 14, and the operation data of the beam monitoring assembly 14 further includes the charged Operational data for the particle beam monitoring module and operational data for the neutron beam monitoring module. For example, the operation data of the charged particle beam monitoring assembly, such as the charged particle beam P current, etc., can be transmitted to the beam control module 20 or the system control module 30, or the operation data of the neutron beam monitoring assembly, such as the neutron beam The intensity or other radiation detection data of the neutron generating unit are transmitted to the system control module 30, and the content of the data interaction is not specifically limited in the present invention.

The beam control module 20 or the system control module 30 determines that there is a safety problem and performs safety interlocking according to the received operation data of the radiotherapy system 100 , including transmitting the beam from the beam generating device 10 to the first irradiation room 101 Before or when the beam is emitted to the first irradiation chamber 101, when the beam control module 20 or the system control module 30 judges that the operation data is abnormal or the operation data exceeds the limit according to the received operation data of the beam monitoring component 14, it is determined that there is a safety The problem is that the safety interlock mechanism is triggered.

Before the beam generating device 10 emits a beam to the first irradiation chamber 101, when the beam control module 20 or the system control module 30 judges that the operation data is abnormal or the operation data exceeds the limit according to the received operation data of the beam monitoring component 14 If the current of the charged particle beam P exceeds the preset range, it is determined that there is a safety problem in the upcoming irradiation of the first irradiation chamber 101, that is, the safety interlock mechanism is triggered, and the beam control mode The group 20 or the system control module 30 can control the beam generating device 10 to prohibit the emission of the beam to the first irradiation room 101 through the beam control module 20, and prohibit the first irradiation room 101 from starting the irradiation treatment; or when the system control module 30 According to the received operation data of the beam monitoring unit 14, when it is judged that there is an abnormality or the operation data exceeds the limit, including the operation data of the neutron beam monitoring unit, if the neutron beam intensity exceeds the preset range, determine the first irradiation room to be started There is a safety problem in the irradiation of 101, that is, the safety interlock mechanism is triggered, and the system control module 30 can control the beam generating device 10 to prohibit the emission of the beam to the first irradiation through the beam control module 20. Room 101, the first irradiation room 101 is prohibited from starting irradiation treatment.

When the beam generating device 10 emits a beam to the first irradiation chamber 101 , when the beam control module 20 or the system control module 30 judges that the operation data is abnormal or the operation data exceeds the limit according to the received operation data of the beam monitoring component 14 When the monitoring value of the neutron beam monitoring component is included, if the charged particle beam current exceeds the preset range, it is determined that there is a safety problem in the irradiation of the first irradiation chamber 101, that is, the safety interlock mechanism is triggered, and the beam control module 20 or the system controls The module 30 can control the beam generating device 10 to stop transmitting the beam to the first irradiation room 101 through the beam control module 20, and end the irradiation treatment in the first irradiation room 101; or when the system control module 30 according to the received radiation When the operation data of the beam monitoring component 14 is judged to be abnormal or the operation data exceeds the limit, including the monitoring value of the neutron beam monitoring component, if the neutron beam intensity exceeds the preset range, it is determined that there is a safety problem in the irradiation of the first irradiation chamber 101, that is, When the safety interlock mechanism is triggered, the system control module 30 can control the beam generator 10 to stop emitting beams to the first irradiation room 101 through the beam control module 20 , and end the irradiation treatment in the first irradiation room 101 .

Through the monitoring value of the beam monitoring component, it is possible to directly judge whether the beam meets the requirements or whether the equipment is operating normally, and it is necessary to incorporate it into the safety interlock factor.

In another embodiment of the present invention, the radiotherapy system 100 further includes a screen door E1 of the first irradiation room 101, a radiation monitoring component 50 disposed in the first irradiation room 101, and the radiation monitoring component 50 is used for monitoring the first irradiation The doses of various radiations (eg, neutrons and gamma rays) in the chamber 101, in one embodiment, the boron concentration and tumor dose are calculated by detecting the prompt gamma rays emitted by the irradiated site after being irradiated by the neutron beam N. It should be understood that the number of screen doors E1 of the first irradiation room 101 may be one or more, such as including a main screen door and a sub-screen door; the radiation monitoring components 50 in the first irradiation room 101 may be one or more, and the Screen door E1, radiation monitoring group The number of pieces 50 is not particularly limited. Radiation therapy system 100 also includes patient status monitoring component 60 and activity monitoring component 70 . The patient state monitoring component 60 can monitor whether the patient's position is shifted, whether the patient's body is uncomfortable, the boron drug intake in the patient's body, etc. It can be understood that it can also be based on the patient's own state or the operator based on the observed situation Trigger a patient abnormal signal on the patient state monitoring component 60 or send the patient abnormal signal to the system control module 30 . The activity monitoring component 70 can use image recognition, thermal sensors, infrared sensors, ultrasonic sensors, pressure sensors, or laser sensors to monitor whether there are people, etc. staying in radiation-controlled areas or objects such as the irradiation room. For abnormal activity, two or more or different types of sensing components can be used to ensure reliability and safety; it can also be that the operator triggers the abnormal activity signal on the activity monitoring component 70 according to the observed situation or sends the abnormal activity signal to the The system control module 30 . As shown in FIG. 4 , in this embodiment, the patient state monitoring component 60 and the activity monitoring component 70 are arranged in the first irradiation room 101 , which is not specifically limited in the present invention. It should be understood that the second irradiation chamber may have the same setup as the first irradiation chamber.

The screen door E1 of the first irradiation room 101 , the radiation monitoring component 50 , the patient state monitoring component 60 and the activity monitoring component 70 can be respectively connected with the system control module 30 for data exchange so that the system control module 30 can determine the first irradiation room Whether there is a safety problem in the irradiation of 101, that is, the operating data of the radiotherapy system 100 includes the operating data of the screen door E1 of the first irradiation room 101, the operating data of the radiation monitoring component 50, the operating data of the patient state monitoring component 60, and the activity monitoring component. 70 operating data. For example, the open or closed state data or open signal data of the screen door E1 of the first irradiation room 101, the monitoring value of the radiation monitoring component 50, the monitoring value of the patient state monitoring component 60, or the abnormal signal of the patient, activity monitoring The data such as the monitoring value of the component 70 or the abnormal activity signal are transmitted to the system control module 30, and the content of the data interaction in the present invention is There is no specific limitation.

The beam control module 20 or the system control module 30 determines that there is a safety problem and performs safety interlocking according to the received operation data of the radiotherapy system 100 , including transmitting the beam from the beam generating device 10 to the first irradiation room 101 Before or when the beam is emitted to the first irradiation room 101 , when the system control module 30 receives the operating data of the screen door E1 of the first irradiation room 101 , the operating data of the radiation monitoring The operation data or the operation data of the activity monitoring component 70 determines that the abnormality or the operation data exceeds the limit, and determines that there is a safety problem, that is, the safety interlock mechanism is triggered.

Before the beam generating device 10 emits a beam to the first irradiation room 101, when the system control module 30 receives the operation data of the screen door E1 of the first irradiation room 101, the operation data of the radiation monitoring component 50, and the patient status When the operating data of the monitoring component 60 or the operating data of the activity monitoring component 70 is judged to be abnormal or the operating data exceeds the limit, such as the open status data or the open signal data of the screen door E1 of the first irradiation room 101 or the open signal data of the radiation monitoring component 50 The monitoring value exceeds the preset range or the monitoring value of the patient state monitoring component 60 exceeds the preset range or the patient abnormality signal of the patient state monitoring component 60 or the monitoring value of the activity monitoring component 70 exceeds the preset range or the activity of the activity monitoring component 70 is abnormal signal, it is determined that there is a safety problem in the irradiation of the first irradiation room 101, that is, the safety interlock mechanism is triggered, and the system control module 30 can control the beam generating device 10 through the beam control module 20. An irradiation room 101, the first irradiation room 101 is prohibited from starting irradiation treatment.

When the beam generating device 10 emits a beam to the first irradiation room 101 , when the system control module 30 receives the operating data of the screen door E1 of the first irradiation room 101 , the operating data of the radiation monitoring component 50 , and the patient status Operational profile of monitoring component 60 or activity monitoring component 70 When it is judged that the operating data is abnormal or the operating data exceeds the limit, for example, the open state data or open signal data of the screen door E1 of the first irradiation room 101 or the monitoring value of the radiation monitoring component 50 exceeds the preset range or the patient state monitoring component. The monitoring value of 60 exceeds a preset range or the patient status monitoring component 60 has abnormal signal data of the patient or the monitoring value of the activity monitoring component 70 exceeds the preset range or the activity monitoring component 70 has abnormal signal data, and the first irradiation room 101 is determined. There is a safety problem in the irradiation of the first irradiation room 101, that is, the safety interlock mechanism is triggered, and the system control module 30 can control the beam generating device 10 to stop emitting the beam to the first irradiation room 101 through the beam control module 20, and end the first irradiation room 101. Radiation therapy.

The shielding door of the irradiation room is closed during irradiation treatment to ensure the safety of personnel and avoid radiation pollution. The monitoring value of the radiation monitoring component set in the irradiation room can judge whether the beam meets the requirements or be used to calculate the radiation dose received by the patient. The condition monitoring component can ensure that the patient is in good condition during treatment or there is no large displacement to ensure the therapeutic effect. The activity monitoring component can ensure that no personnel are accidentally exposed to radiation or objects move abnormally to ensure personnel safety and equipment. Factors that incorporate safety interlocks.

In another embodiment of the present invention, the radiation therapy system 100 further includes a treatment plan module 80 for storing a patient's treatment plan. The treatment plan module 80 can be connected with the system control module 30 and perform data exchange, so that the system control module 30 can determine whether there is a safety problem in the irradiation of the first irradiation room 101 , that is, the operation data of the radiotherapy system 100 includes the system control module. Treatment plan data retrieved from treatment plan module 80 by group 30 . The present invention does not specifically limit the content of data interaction.

The beam control module 20 or the system control module 30 determines that there is a safety problem according to the received operation data of the radiotherapy system 100 and performs safety interlocking, including Before the generating device 10 emits a beam to the first irradiation room 101 or emits a beam to the first irradiation room 101, when the system control module 30 determines that the treatment plan is abnormal or the treatment plan is completed according to the received treatment plan data, it is determined that there is Safety issues, i.e. triggering the safety interlock mechanism.

Before the beam generating device 10 emits a beam to the first irradiation room 101, when the system control module 30 does not obtain a compliant treatment plan (consistent with the current patient to be treated) from the treatment plan module 80, For example, the system control module 30 automatically determines that the treatment plan is wrong according to the received treatment plan data, and determines that there is a safety problem in the irradiation of the first irradiation room 101 to be started, that is, the safety interlock mechanism is triggered, and the system control module 30 The beam generating device 10 can be controlled by the beam control module 20 to prohibit the emission of the beam to the first irradiation room 101 and prohibit the first irradiation room 101 from starting the irradiation treatment. It can be understood that an operator such as a doctor can also manually judge (such as whether the serial number, patient information, etc. are consistent) and manually confirm the inconsistent signal to the system control module 30, and the system control module 30 determines according to the received signal data. There is a safety problem in the upcoming irradiation of the first irradiation chamber 101 , that is, a safety interlock mechanism is triggered.

When the beam generator 10 emits a beam to the first irradiation room 101 , the system control module 30 judges the first irradiation according to the comparison of the irradiation data of the patient in the first irradiation room 101 with the received treatment plan data When the treatment plan of the patient in the room 101 is completed (for example, the treatment duration or the treatment dose in the received treatment plan is reached), it is determined that there is a safety problem in the irradiation of the first irradiation room 101, that is, the safety interlock mechanism is triggered, and the system The control module 30 can control the beam generating device 10 to stop emitting the beam to the first irradiation room 101 through the beam control module 20 , and end the irradiation treatment in the first irradiation room 101 .

The dose and duration of radiation received by the patient during treatment are determined by the treatment plan data. If the treatment plan is incorrect, it will directly affect the treatment effect or cause harm to the patient. Including it into the safety interlock factor further ensures the effective operation of radiotherapy.

In another embodiment of the present invention, a signal of the state of the irradiation room (for example, including irradiation, to be irradiated, in preparation, not in use, etc.) can also be set, and the signal can be manually confirmed by operators such as doctors according to the situation of the irradiation room, It can also be automatically judged and given by the system control module 30 according to the received data. That is, the operation data of the radiotherapy system also includes the signal data of the state of the irradiation room. The beam control module 20 or the system control module 30 determines that there is a safety problem and performs safety interlocking according to the received operation data of the radiotherapy system 100 . Including, before the beam generating device 10 transmits the beam to the first irradiation chamber 101, when the system control module 30 determines that the first irradiation chamber 101 is not in the state to be irradiated according to the received signal data of the state of the first irradiation chamber 101, If the state of the first irradiation chamber 101 is a signal in preparation or not in use, it is determined that there is a safety problem in the irradiation of the first irradiation chamber 101 to be started, that is, the safety interlock mechanism is triggered, and the system control module 30 passes the beam control module 20 . The beam generating device 10 can be controlled to prohibit the emission of the beam to the first irradiation chamber 101, and to prohibit the first irradiation chamber 101 from starting the irradiation treatment.

In another embodiment of the present invention, the radiotherapy system further includes a beam collecting device 90, which can be a container buried in the wall, collects the beam when the beam is not needed, and a beam direction switching assembly 121 transmits the charged particle beam P generated by the charged particle beam generation unit 11 to the beam collection device 90 . The beam control module 20 or the system control module 30 controls the beam generator 10 to stop emitting the beam to the first irradiation chamber 101 through the beam control module 20 , which may be to control the charged particle beam generator 11 to stop generating charged particles. It is also possible to control the charged particle beam P generated by the charged particle beam generation unit 11 to stop acting on the first neutron beam generation unit 13, that is, to control the beam generation device 10 to switch the beam from the first neutron beam generation unit 121 through the beam direction switching component 121. When the irradiation chamber 101 is cut off, for example, the charged particle beam P generated by the charged particle beam generator 11 is controlled to pass through the beam direction switching group The element 121 acts with the second neutron beam generator 13' to generate a neutron beam N irradiated into the second irradiation chamber 101', and switches the beam from the first irradiation chamber 101 to the second irradiation chamber 101'; or control The charged particle beam P generated by the charged particle beam generating unit 11 passes through the beam direction switching component 121 and neither the first and second neutron beam generating units 13 and 13 ′ function, and the charged particle beam P is directly transmitted to the beam collecting device 90 , thereby switching the beam from the first irradiation chamber 101 to the beam collection device 90 . The selection of the above methods can be automatically determined by the beam control module 20 or the system control module 30 according to the received operating data of the radiotherapy system 100, or can be manually input according to the prompting of the operator after the safety interlock mechanism is triggered. . In one embodiment, when the triggering factor of the safety interlock is not related to the beam generating device 10, such as the opening of the shield door of the irradiation room or the abnormality of the patient, the beam can be selected to be cut off from the first irradiation room 101; when The factor that triggers the safety interlock is related to the beam generating device 10. If the accelerator fails, the charged particle beam generating unit 11 can be controlled to stop generating the charged particle beam P; Not limited.

In one embodiment, before switching the beam from the first irradiation chamber 101 to the second irradiation chamber 101 ′, the above-mentioned safety interlock control method further includes: the beam control module 20 or the system control module 30 , according to the received The operation data of the radiotherapy system 100 determines whether there is a safety problem in the second irradiation room 101' (whether it is in an unused state and whether the screen door of the second irradiation room 101' is closed). When it is determined that the second irradiation chamber 101' is not in use and the screen door of the second irradiation chamber 101' is closed, the beam is switched from the first irradiation chamber 101 to the second irradiation chamber 101'; when it is determined that the second irradiation chamber 101 'When it is not in an unused state and the screen door of the second irradiation chamber 101' is not closed, the operation of switching the beam from the first irradiation chamber 101 to the second irradiation chamber 101' is not performed and a notification is given. Specifically, the part of the beam direction switching assembly 121 corresponding to the first irradiation chamber 101 can be disconnected, and the part of the beam direction switching assembly 11 corresponding to the second irradiation chamber 101' can be connected, thereby Switching of the beam from the first irradiation chamber 101 to the second irradiation chamber 101' is achieved.

According to the technical solution provided by the embodiment of the present invention, the beam control module 20 or the system control module 30 controls the beam when it is determined that there is a safety problem in the irradiation of the first irradiation room 101 according to the received operation data of the radiotherapy system 100 . The generating device 10 cuts off the beam from the first irradiation chamber 101 , and can quickly cut off the beam from the first irradiation chamber 101 without shutting down the beam generating device, so that the safety of the first irradiation chamber 101 is a problem. If it is solved in time, the service life of the beam generating device 10 can be increased while the safety of the radiotherapy system 100 is improved. In addition, the first irradiation chamber 101 and the second irradiation chamber 101' share one beam generating device 10, which improves the utilization rate of the beam generating device 10 and satisfies the requirement that multiple irradiation chambers cooperate for safety interlocking protection at the same time. All the above-mentioned optional technical solutions can be combined arbitrarily to form optional embodiments of the present invention, which will not be repeated here.

In an embodiment of the present invention, the principle of the safety interlock mechanism is briefly described by taking the screen door and the beam direction switching component 121 cooperate with each other to form a safety interlock factor as an example. The screen doors include screen doors (such as screen doors A and B) of the charged particle beam generation chamber 102, screen doors C of the beam transmission chamber 103, and screen doors of the irradiation chamber (screen doors E1 and E1 of the first irradiation chamber). Screen door E2) of the second irradiation chamber. The beam direction switching assembly 121 includes a deflection magnet D1 and a deflection magnet D2 for guiding the irradiation beam into the first irradiation chamber 101 and the second irradiation chamber 101', respectively. The connection of the deflection magnet D1 and the deflection magnet D2 is mutually exclusive, for example: when the deflection magnet D1 is connected, the deflection magnet D2 is disconnected; when the deflection magnet D2 is connected, the deflection magnet D1 is disconnected.

Opening of the irradiation treatment in the irradiation room: the screen door A, screen door B of the charged particle beam generation room 102 and screen door C of the beam transmission room 103 must all be closed; in addition, at least one deflection magnet needs to be turned on and corresponding to The shielded door of the irradiation room is closed, e.g., deflected The magnet D1 is turned on and the screen door E1 of the first irradiation chamber is closed; or the deflection magnet D2 is turned on and the screen door E2 of the second irradiation chamber is closed.

Simply put, when the screen door A, screen door B, and screen door C are all closed, the deflection magnet D1 is turned on, and the screen door E1 of the corresponding first irradiation room 101 is in the closed state, the charged particle beam generator 11 The beam exit condition is reached; or when the screen door A, screen door B and screen door C are all closed, the deflection magnet D2 is turned on and the screen door E2 of the corresponding second irradiation chamber 101' is in the closed state, the charged particle beam The generating unit 11 reaches the beam output condition. That is, after the system control module receives the instruction to start irradiating the first or second irradiation chamber and performs the above-mentioned safety interlock judgment to determine that there is no safety problem in the irradiation of the irradiation chamber, the system control module controls the charged particle beam generator 11 to generate The charged particle beam P (the ion source 111, the accelerator 112 and the accelerator auxiliary equipment 113 are operating to the beam-out state), and the charged particle beam P acts with the corresponding neutron beam generator to generate a neutron beam and irradiates the irradiation chamber, then the irradiation chamber is Radiation therapy starts.

Closing of the irradiation treatment in the irradiation room: during the execution of the irradiation treatment in the first irradiation room 101, if at least one screen door (for example, at least one of screen doors A, B, C, and E1) is opened or the deflection magnet D1 is in an abnormal state (If the on state is accidentally switched to the off state), it is determined that there is a safety problem in the irradiation of the first irradiation chamber 101, as long as the deflection magnet D1 is turned off or the charged particle beam generator 11 stops generating the charged particle beam P (for example, off By stopping the accelerator 112 or cutting off the ion source 111), the beam can be cut off from the first irradiation chamber 101, and the irradiation treatment in the first irradiation chamber 101 can be ended. When turning off the deflection magnet D1 to cut off the beam from the first irradiation chamber 101, if it is determined that the second irradiation chamber 101' is in an unoccupied state and the screen door is closed, the deflection magnet D2 can be turned on, and the beam will be irradiated from the first irradiation chamber 101'. The chamber 101 is switched to the second irradiation chamber 101 ′; the deflection magnets D1 and D2 can also be kept off, and the beam is switched from the first irradiation chamber to the beam collecting device 90 .

During the execution of irradiation therapy in the second irradiation room 101', for example, at least one screen door (eg, at least one of screen doors A, B, C, and E2) is opened or the deflection magnet D2 is in an abnormal state (such as unexpectedly caused by an on state) The second irradiation chamber 101 ′ has a safety problem, as long as the deflection magnet D2 is disconnected or the charged particle beam generator 11 stops generating the charged particle beam P (for example, the accelerator 112 is turned off or the ion source is cut off). 111), the beam can be cut off from the second irradiation chamber 101', and the irradiation treatment in the second irradiation chamber 101' is ended. When turning off the deflection magnet D2 to cut off the beam from the second irradiation chamber 101 ′, if it is determined that the first irradiation chamber 101 is in an unoccupied state and the screen door is closed, the deflection magnet D1 can be turned on, and the beam is irradiated from the second irradiation chamber 101 ′. The chamber 101 ′ is switched to the first irradiation chamber 101 ; the deflection magnets D1 and D2 can also be kept off, and the beam is switched from the second irradiation chamber 101 ′ to the beam collecting device 90 .

In order to simplify and clarify the principle of the safety interlock mechanism, the above only takes the screen door and the deflection magnet as the safety interlock factor as an example. It should be understood that in addition to the screen door and the deflection magnet, other factors mentioned in this article can also be added. (For example, ion source, accelerator, accelerator auxiliary equipment, neutron beam generation unit, beam monitoring component, radiation monitoring component, treatment plan module, etc.) work together to form a safety interlock mechanism, which is not limited in the present invention. By incorporating a variety of equipment and components into the safety interlock factor, the safety of the radiotherapy system is effectively improved and the effective utilization of the radiotherapy system is enhanced.

FIG. 6 is a schematic flowchart of a safety interlock control method for a radiation therapy system provided by another embodiment of the present invention, taking neutron radiation therapy in the first radiation chamber as an example. The safety interlock control method may be performed by the safety interlock control system 700 in the radiation therapy system. The safety interlock control system 700 may include control software and a carrier for executing the control program, may also include a user input interface and a feedback display interface, and may also include a processor module, a data acquisition module. A group, a beam generating device, or a device connection port of an irradiation chamber, etc., which is not specifically limited in this embodiment of the present invention. As shown in Figure 6, the safety interlock control method includes:

S601: Receive the login information of the user.

S602: After receiving the user's login information in step S601, determine whether the user's login is successful.

When the user fails to log in successfully, go back to step S601; when the user logs in successfully, go to step S603.

S603: Receive treatment parameters.

The user can also verify the status of the treatment device or patient before and after receiving treatment parameters. The treatment parameters may be manually input by the user, or may be treatment parameters in the treatment plan data obtained from the treatment plan module, which is not limited in the present invention.

S604: After receiving the treatment parameters in step S603, receive an instruction to start the irradiation treatment of the first irradiation room 101 input by the user.

S605: After receiving the instruction of starting the irradiation treatment of the first irradiation room 101 input by the user in step S604, the control right of the beam generating device 10 is obtained.

S606: After step S605, it is judged according to the safety interlock mechanism whether the irradiation treatment can be started to the first irradiation room 101.

Specifically, it is determined whether there is a safety problem in the irradiation of the first irradiation chamber 101 to be started. When there is a safety problem in the irradiation of the first irradiation room 101 to be started, step S607 is performed; when there is no safety problem in the irradiation of the first irradiation room 101 to be started, and the treatment can be started, step S608 is performed.

S607: Do not execute the start treatment instruction, and pop up to trigger the safety interlock mechanism hint.

For example, the prompts can be overrun of operating data, equipment failure, deflection magnets not connected, screen doors not closed, target lifespan is insufficient, collimators are inconsistent, patient abnormalities, wrong treatment plans, etc., which are not limited in the present invention . The user solves the safety problem according to the prompt. If the problem is solved, such as closing the corresponding screen door, etc., the user manually selects to determine the problem is solved, then returns to step S606, and performs the safety interlock judgment before starting irradiation again; if the problem cannot be solved temporarily, such as equipment If there is a serious fault, and the user manually selects to determine that the problem is not resolved, step S612 is executed to end the irradiation treatment of the patient and release the control right of the beam generating device 10 .

S608 : The beam generator 10 is controlled to generate a treatment beam, and irradiation treatment is started on the patient 200 in the first irradiation room 101 .

Specifically, the charged particle beam generation unit 11 is controlled to generate the charged particle beam P, and the beam transmission unit 12 is controlled to transmit the charged particle beam P generated by the charged particle beam generation unit 11 to the first neutron beam generation unit 13, where the charged particle beam P The treatment neutron beam N is generated by interacting with the first neutron beam generator 13 and irradiated to the patient 200 on the treatment table 40 provided in the first irradiation chamber 101 , and the patient 200 is subjected to irradiation treatment.

S609: After starting the irradiation treatment for the patient in the first irradiation room 101 in step S608, immediately determine whether the irradiation treatment can be continuously performed on the first irradiation room 101 according to the safety interlock mechanism.

That is to say, immediately determine whether there is a safety problem in the irradiation of the first irradiation chamber 101 , when there is no safety problem in the irradiation of the first irradiation chamber 101 , execute step S610 ; when there is a safety problem in the irradiation of the first irradiation chamber 101 , execute Step S611.

S610: Continuously perform irradiation therapy on the patient 200 in the first irradiation room 101, And return to S609 to continue to judge.

S611: Stop the irradiation treatment for the patient 200 in the first irradiation room 101, and pop up a prompt to trigger the safety interlock mechanism.

For example, the prompts may be overruns of operating data, equipment failures, deflection magnets not connected, screen doors opened, patient abnormalities, or completion of treatment plans, etc., which are not limited in the present invention. The user solves the safety problem according to the prompt. If the problem is solved, such as closing the corresponding screen door, etc., the user manually selects to determine that the problem is solved, then returns to step S608 to start the irradiation treatment for the patient 200 in the first irradiation room 101 again; If the equipment is seriously faulty and the user manually selects to determine that the problem is not resolved, step S612 is executed to end the irradiation treatment for the patient 200 in the first irradiation room 101 and release the control right of the beam generating device 10; or prompt the treatment plan After completion, the user manually selects to determine that the irradiation is completed, and executes step S612 to end the irradiation treatment for the patient 200 in the first irradiation room 101 and release the control right of the beam generating device 10 .

S612 : End the irradiation treatment on the patient 200 in the first irradiation room 101 and release the control right of the beam generating device 10 .

S613: After the irradiation treatment is finished in step S612, the logout information of the user is received.

It can be understood that in the above steps, after the safety interlock determines that there is a safety problem, according to the factors that trigger the safety interlock, a prompt to trigger the safety interlock mechanism can also be popped up, and the user can decide whether to start or continue the irradiation treatment according to the prompt. , if some operating data exceeds the preset range by a small margin, and the physician judges that it is still within the safe range based on experience, the irradiation treatment can be started or continued.

According to the technical solutions provided by the embodiments of the present invention, by The safety interlocking mechanism composed of interlocking factors can monitor whether there are safety problems before and during the radiation therapy, which improves the safety of the radiation therapy system.

All the above-mentioned optional technical solutions can be combined arbitrarily to form optional embodiments of the present invention, which will not be repeated here.

For details of the realization process of the functions and functions of each module in the above device, please refer to the realization process of the corresponding steps in the above method, which will not be repeated here.

FIG. 7 is a block diagram of a safety interlock control system 700 of a radiation therapy system according to an embodiment of the present invention.

7, a safety interlock control system 700 includes a processing component 710, which further includes one or more processors, and memory resources, represented by memory 720, for storing instructions executable by the processing component 710, such as application. An application program stored in memory 720 may include one or more modules, each corresponding to a set of instructions. Additionally, the processing component 710 is configured to execute instructions to execute the above-described method of safety interlock control of the radiation therapy system.

The safety interlock control system 700 may also include a power component configured to perform power management of the safety interlock control system 700, a wired or wireless network interface configured to connect the safety interlock control system 700 to the network, and a Input output (I/O) interface. The safety interlock control system 700 can operate based on an operating system stored in the memory 720, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™ or the like.

A non-transitory computer-readable storage medium, when the instructions in the storage medium are executed by the processor of the above-mentioned safety interlocking control system 700, the above-mentioned safety interlocking control system is made. The system 700 can execute any one of the above-mentioned safety interlock control methods for the radiotherapy system.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of the present invention.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or may be Integration into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The unit described as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, it may be located in one place, or may be distributed to multiple network units . Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

If the functions are implemented in the form of software functional units and sold or used as independent products, they may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including several The instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM), Random Access Memory (RAM), magnetic disk or CD, etc. verification medium.

In addition, it should also be noted that the combination of the technical features in this case is not limited to the combination described in the claims of this case or the combination described in the specific embodiments, and all the technical features described in this case can be in any way. Free combination or combination, unless there is a conflict with each other.

It should be noted that the above enumeration is only a specific embodiment of the present invention, and it is obvious that the present invention is not limited to the above embodiment, and there are many similar changes. If those skilled in the art directly derive or associate all deformations from the content disclosed in the present invention, they shall belong to the protection scope of the present invention.

It should be understood that the first, second and other qualifiers mentioned in the embodiments of the present invention are only used to describe the technical solutions of the embodiments of the present invention more clearly, and cannot be used to limit the the protection scope of the present invention.

The above are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

100: Beam irradiation system

101: The first irradiation room

10: Beam generation device

20: Beam Control Module

30: System control module

Claims (10)

A safety interlock control method for a radiotherapy system, wherein the radiotherapy system includes a system control module, a beam control module, a beam generation device and a first irradiation chamber, the beam generation device includes a beam direction switching component , the beam generating device is used to generate a beam and selectively emit a beam to the first irradiation chamber through the beam direction switching component, and the control method includes: when the beam generating device emits a beam to the first irradiation chamber When irradiating the room, the beam control module or the system control module determines that there is a safety problem in the irradiation of the first irradiation room according to the received operation data of the radiotherapy system; the beam control module or the system controls The module controls the beam direction switching component to cut the beam away from the first irradiation chamber through the beam control module. The safety interlock control method as described in item 1 of the scope of application, further comprising: before the beam generating device emits the beam to the first irradiation chamber, when the beam control module or the system control module When the group determines that there is no safety problem in the upcoming irradiation of the first irradiation room according to the received operation data of the radiotherapy system, the beam control module or the system control module controls the beam control module through the beam control module. The beam generator emits the beam to the first irradiation chamber. The safety interlock control method as described in item 1 of the scope of the application, wherein the radiotherapy system further comprises a second irradiation chamber, wherein the beam control module or the system control module passes the beam control module through the beam control module. Before the group controls the beam direction switching component to cut the beam away from the first irradiation chamber, it further includes: the beam control module or the system control module determines the beam control module according to the received operation data of the radiotherapy system. There is no safety problem in the second irradiation room, Wherein, the beam control module or the system control module controls the beam direction switching component to cut off the beam from the first irradiation chamber through the beam control module, including: the beam control module or The system control module controls the beam direction switching component to switch the beam from the first irradiation chamber to the second irradiation chamber through the beam control module. The safety interlock control method as described in item 1 of the claimed scope, wherein the radiotherapy system further comprises a beam collecting device, and the beam control module or the system control module controls the beam control module through the beam control module. The beam direction switching component cuts the beam from the first irradiation chamber, including: the beam control module or the system control module controls the beam direction switching component to the beam through the beam control module Switch from the first irradiation chamber to the beam collection device. The safety interlock control method according to claim 1, wherein the radiotherapy system further comprises a screen door of the first irradiation room, a radiation monitoring element and a patient state monitoring element arranged in the first irradiation room and an activity monitoring element, the operation data of the radiotherapy system includes the operation data of the screen door of the first irradiation room or the operation data of the radiation monitoring element or the operation data of the patient condition monitoring element or the operation data of the activity monitoring element, Wherein, the beam control module or the system control module determines that there is a safety problem in the irradiation of the first irradiation room according to the received operation data of the radiotherapy system, including: when the system control module receives the first irradiation When the open state data or open signal data of the screen door of an irradiation room, it is determined that there is a safety problem in the irradiation of the first irradiation room; or when the first monitoring value of the radiation monitoring element received by the system control module exceeds In the first preset range, it is determined that there is a safety problem in the irradiation of the first irradiation chamber; or When the second monitoring value of the patient state monitoring element received by the system control module exceeds the second preset range or the patient's abnormal signal data, it is determined that there is a safety problem in the irradiation of the first irradiation room; or when the system controls When the third monitoring value of the activity monitoring element received by the module exceeds the third preset range or the signal data of abnormal activity, it is determined that there is a safety problem in the irradiation of the first irradiation chamber. The safety interlock control method according to claim 1, wherein the beam generating device further comprises a charged particle beam generating part, a first neutron beam generating part and a beam monitoring component, and the beam direction switching component Optionally transmit the charged particle beam generated by the charged particle beam generator to the first neutron beam generator to irradiate the first irradiation chamber with a neutron beam, the charged particle beam generator including an ion source, an accelerator, and an accelerator Auxiliary equipment, the radiotherapy system further includes a charged particle beam generation chamber accommodating the charged particle beam generation part, a beam transmission chamber accommodating the beam direction switching assembly, a shield door of the charged particle beam generation chamber, and the beam transmission The screen door of the room, wherein the operating data of the radiation therapy system includes the operating data of the ion source or the operating data of the accelerator or the operating data of the accelerator auxiliary equipment or the operating data of the beam monitoring element or the charged particle beam generation data Operation data of the screen door of the room or the operation data of the screen door of the beam transmission room or the operation data of the first neutron beam generator or the operation data of the beam direction switching component, wherein the beam control module Or the system control module determines that there is a safety problem in the irradiation of the first irradiation room according to the received operation data of the radiotherapy system, including: when the beam control module or the system control module When the operation data of the ion source is judged to be abnormal or the operation data of the ion source exceeds the fourth preset range, it is determined that there is a safety problem in the irradiation of the first irradiation chamber; or When the beam control module or the system control module judges that the operation data of the accelerator is abnormal or the operation data of the accelerator exceeds the fifth preset range according to the received operation data of the accelerator, it is determined that there is a safety problem in the irradiation of the first irradiation chamber ; or when the beam control module or the system control module judges that the operation data of the accelerator auxiliary equipment is abnormal or the operation data of the accelerator auxiliary equipment exceeds the sixth preset range according to the received operation data of the accelerator auxiliary equipment, determine that the first irradiation There is a safety problem in the irradiation of the room; or when the fourth monitoring value of the beam monitoring element received by the beam control module or the system control module exceeds the seventh preset range, determine the irradiation of the first irradiation room There is a safety problem; or when the system control module receives the open state data or open signal data of the screen door of the charged particle beam generation room or the screen door of the beam transmission room, it determines that the first irradiation room is open. There is a safety problem in the irradiation; or when the system control module determines that the operation data of the first neutron beam generator is abnormal according to the received operation data or the operation data of the first neutron beam generator exceeds the eighth preset range, It is determined that there is a safety problem in the irradiation of the first irradiation chamber; or when the beam control module or the system control module judges that it is abnormal according to the received status data of the beam direction switching component, determine the first irradiation chamber exposure to safety concerns. The safety interlock control method as described in claim 6, wherein the radiotherapy system further includes a treatment plan module, and the operation data of the radiotherapy system includes the system control module from the treatment plan module The retrieved treatment plan data, wherein the beam control module or the system control module determines that there is a safety problem in the irradiation of the first irradiation room according to the received operation data of the radiotherapy system, including: When the system control module judges that the treatment plan of the patient in the first irradiation room is completed according to the comparison of the irradiation data of the patient in the first irradiation room and the received treatment plan data, determine the first irradiation room There is a safety problem in the irradiation of an irradiation room. A radiation therapy system comprising: a first irradiation chamber; a beam generating device including a beam direction switching assembly for generating a beam and selectable by the beam direction switching assembly sending beams to the first irradiation room; system control module for determining the first irradiation according to the received operation data of the radiotherapy system when the beam generating device emits a beam to the first irradiation room There is a safety problem in the irradiation of an irradiation chamber; the beam control module is used to receive the control command of the system control module and control the beam generating device to cut off the beam from the first irradiation chamber; or when the When the beam generating device emits a beam to the first irradiation room, the beam control module determines that there is a safety problem in the irradiation of the first irradiation room according to the received operation data of the radiotherapy system, and controls the beam The generating device cuts the beam away from the first irradiation chamber. The radiotherapy system according to claim 8, wherein the beam generating device further comprises a charged particle beam generating part, a first neutron beam generating part and a beam monitoring component, and the beam direction switching component can be selected The charged particle beam generated by the charged particle beam generation part is transmitted to the first neutron beam generation part to irradiate the neutron beam into the first irradiation chamber, and the charged particle beam generation part includes an ion source, an accelerator and accelerator auxiliary equipment , the radiotherapy system further comprises a charged particle beam generating chamber containing the charged particle beam generating part, a beam transmission chamber containing the beam direction switching component, the The screen door of the charged particle beam generation room and the screen door of the beam transmission room, the screen door of the charged particle beam generation room, the screen door of the beam transmission room and the first neutron beam generation part are respectively controlled with the system The module is connected and performs data exchange to determine whether there is a safety problem in the irradiation of the first irradiation chamber. The ion source, the accelerator, the accelerator auxiliary equipment, the beam monitoring component and the beam direction switching component are respectively controlled with the system The module and the beam control module are connected and perform data exchange, so that the beam control module or the system control module can determine whether there is a safety problem in the irradiation of the first irradiation chamber. The radiation therapy system as described in claim 8, wherein the radiation therapy system further comprises a screen door of the first irradiation room, a radiation monitoring element disposed in the first irradiation room, a patient state monitoring element, an active A monitoring element and a treatment plan module, the treatment plan module is used to store the treatment plan of the patient, the treatment plan module, the screen door of the first irradiation room, the radiation monitoring element, the patient state monitoring element The activity monitoring element is connected with the system control module and performs data exchange, so that the system control module can judge whether there is a safety problem in the irradiation of the first irradiation chamber.

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