CN104780975A - Neutron capture therapy system - Google Patents
Neutron capture therapy system Download PDFInfo
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- CN104780975A CN104780975A CN201380058589.4A CN201380058589A CN104780975A CN 104780975 A CN104780975 A CN 104780975A CN 201380058589 A CN201380058589 A CN 201380058589A CN 104780975 A CN104780975 A CN 104780975A
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- neutron
- exposure cell
- capture therapy
- therapy system
- collimator
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1077—Beam delivery systems
- A61N5/1079—Sharing a beam by multiple treatment stations
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N2005/1085—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy characterised by the type of particles applied to the patient
- A61N2005/109—Neutrons
Abstract
Provided is a neutron capture therapy system with which irradiation-chamber preparation time can be shortened. This neutron capture therapy system (100) irradiates a patient (S) with a neutron beam (N). The neutron capture therapy system (100) is provided with: irradiation chambers (30A, 30B) which are each provided with a chamber interior capable of having the patient (S) disposed therein in order to irradiate the patient (S) with the neutron beam (N), and which are surrounded by shielding walls (W1) for blocking chamber-exterior-bound radiation of the neutron beam (N) from the chamber interiors; a neutron beam generation unit (10) which is capable of irradiating the chamber interiors of the irradiation chambers (30A, 30B) with the neutron beam (N); and a treatment table (80) upon which the patient (S) is placed, and which is configured so as to be capable of moving between chamber exteriors and the chamber interiors of the irradiation chambers (30A, 30B).
Description
Technical field
The present invention relates to a kind of neutron-capture therapy system of irradiated body being irradiated to neutron beam.
Background technology
The neutron beam irradiation unit of the irradiation target illumination neutron beam to patient is recorded in patent documentation 1.This neutron beam irradiation unit can carry out the neutron conveying end of collimator and the para-position of irradiating target like a cork, realizes the raising of irradiating degree of accuracy.The mounting table that neutron beam irradiation unit possesses mounting patient, the collimator making the deceleration device of neutron degradation and neutron is restrained.Mounting table and collimator are arranged to can along the removing direction of neutron relative to deceleration device relative movement.
In the neutron beam irradiation unit recorded in patent documentation 1, deceleration device is embedded in the wall of exposure cell, and mounting table and collimator configuration are in exposure cell.When utilizing neutron beam irradiation unit to treat, after the preparation of the para-position implementing the patient in collimator and mounting table and so on, irradiate neutron beam.Because collimator and mounting table are configured in exposure cell, therefore in exposure cell, implement para-position work.
Conventional art document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2009-189725 publication
Summary of the invention
The technical task that invention will solve
But, use the radiotherapy of neutron beam compared with other radiotherapies, there is the trend being used for uprising the radiological dose that patient is irradiated in the exposure cell of neutron beam.Therefore, in the radiation cure field that in use son is restrainted, it is desirable to shorten the time in indoor, exposure cell.
In view of the foregoing, the object of the present invention is to provide the neutron-capture therapy system of a kind of time that can shorten in exposure cell.
For the means of technical solution problem
Neutron-capture therapy system involved by one embodiment of the present invention is the neutron-capture therapy system of irradiated body being irradiated to neutron beam, it possesses: exposure cell, can in order to irradiate neutron beam and irradiated body is placed in indoor to irradiated body, and be used to block neutron beam and cover to the shielding wall of outdoor radiation indoor; Neutron beam generating unit, can to the indoor irradiation neutron beam of exposure cell; And mounting table, be configured to load irradiated body and move between the indoor and outdoor of exposure cell.
In neutron-capture therapy system involved by one embodiment of the present invention, mounting table can move between the indoor of exposure cell and outdoor, therefore, it is possible in exposure cell, outdoor enforcement is used for the preparation of irradiated body being irradiated to neutron beam after mounting table is moved to outdoor, exposure cell.Therefore, due to can in exposure cell a part of preparation of indoor, outdoor enforcement exposure cell, therefore, it is possible to shorten the time needed for preparation of indoor, exposure cell.
Neutron-capture therapy system involved by one embodiment of the present invention also possesses the preparation room be set up in parallel with exposure cell, is provided with the labelling of the para-position for irradiated body in preparation room indoor.According to this structure, at preparation room relative to labelling para-position irradiated body, the para-position of the irradiated body in exposure cell can be simulated thus.Therefore, it is possible to the para-position working time of irradiated body in shortening exposure cell.
And, be provided with for the collimator of the range of exposures of regulation neutron beam and for the 1st position specified part of regulation mounting table in the position of indoor, exposure cell in indoor, exposure cell, also be provided with for the 2nd position specified part of regulation mounting table in the position of preparation room indoor in preparation room indoor, the position relationship between labelling with the 2nd position specified part is identical with the position relationship between collimator and the 1st position specified part.According to this structure, irradiated body being placed in after the indoor mounting table by the 2nd specified part location, position of preparation room, relative to labelling para-position irradiated body.Further, the mounting table being placed with irradiated body if make moves to exposure cell, and locates the position of mounting table by the 1st position specified part, then become the state of the para-position carrying out collimator and irradiated body.Therefore, it is possible to the para-position work of the collimator of simulating in preparation room in enforcement exposure cell and irradiated body, therefore, it is possible to shorten the para-position working time of the irradiated body in exposure cell further.
Further, mounting table has base portion and to be configured in base portion and to support the top board of irradiated body, and top board can rotate around vertical axle relative to base portion.According to this structure, by making top board rotate relative to base portion, the long side direction of top board can be made consistent with the moving direction of mounting table.Therefore, the size for the gateway that mounting table is passed through etc. is not the length of the long side direction of top plate portion, but specifies according to the size of base portion.Therefore, it is possible to suppress the expansion of the size of the gateway passed through for mounting table etc.
Invention effect
According to neutron-capture therapy system of the present invention, the time in exposure cell can be shortened.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the neutron-capture therapy system represented involved by the 1st embodiment.
Fig. 2 is the figure of the structure of the neutron-capture therapy system represented involved by the 1st embodiment.
Fig. 3 is the figure of the configuration of the neutron-capture therapy system represented involved by the 1st embodiment.
Fig. 4 is the figure near the neutron beam efferent of the neutron-capture therapy system represented involved by the 1st embodiment.
Fig. 5 is the axonometric chart of the treatment table of the neutron-capture therapy system represented involved by the 1st embodiment.
Fig. 6 is the figure of the para-position for illustration of patient and collimator.
Fig. 7 is the figure of the structure of the neutron-capture therapy system represented involved by variation.
Fig. 8 is the figure of the structure of the neutron-capture therapy system represented involved by the 2nd embodiment.
Fig. 9 is the figure of the structure of the neutron-capture therapy system represented involved by variation.
Figure 10 is the figure of the structure of the neutron-capture therapy system represented involved by the 3rd embodiment.
Figure 11 is the figure of the configuration of the neutron-capture therapy system represented involved by the 3rd embodiment.
Figure 12 is the figure of the para-position for illustration of patient and collimator.
Figure 13 is the figure of the structure of the neutron-capture therapy system represented involved by variation.
Detailed description of the invention
Below, with reference to accompanying drawing, embodiments of the present invention are described in detail.In addition, in below illustrating, same-sign is marked to same or equivalent important document and omits repeat specification.And, set using the injection direction of neutron beam N penetrated from neutron beam efferent 12A described later as X-axis, using the direction orthogonal with the injection direction of the neutron beam N penetrated from neutron beam efferent 12A as Y-axis, using the XYZ coordinate system (with reference to figure 3) of the direction vertical relative to ground as Z axis, and use X, Y, Z in the explanation of the position relationship of each constitutive requirements.
< the 1st embodiment >
Neutron-capture therapy system involved by 1st embodiment is described.Fig. 1 is the schematic diagram of the neutron-capture therapy system 100 represented involved by the 1st embodiment.Neutron-capture therapy system 100 is the devices using boron neutron-capture therapy (BNCT:Boron Neutron Capture Therapy) to carry out treatment of cancer.Neutron-capture therapy for by have injection boron (
10b) patient's (irradiated body) irradiates neutron beam to carry out the therapy for the treatment of of cancer.As shown in Figure 1, use in the neutron-capture therapy of neutron-capture therapy system 100, in the indoor enforcement of preparation room 50A, patient is strapped in the preparation for the treatment of table (mounting table) 80 grade, by patient, treatment table 80 is moved to exposure cell 30A.In the indoor of exposure cell 30A, neutron beam is irradiated to patient.
Fig. 2 is the figure of the structure representing neutron-capture therapy system 100.Fig. 3 is the figure of the configuration representing neutron-capture therapy system 100.As shown in Figures 2 and 3, neutron-capture therapy system 100 possesses: neutron beam generating unit 10, produces and irradiation treatment neutron beam N; Exposure cell 30A, 30B, for irradiating neutron beam N to patient; Preparation room 50A, 50B, prepare for carrying out irradiation; And caretaker room 70, for management work operation.
Neutron beam generating unit 10 is configured to irradiate neutron beam N to patient S at the indoor generation neutron beam N of exposure cell described later 30A, 30B.Neutron beam generating unit 10 possesses accelerator 11 (such as, cyclotron), the neutron beam efferent 12A generating neutron beam N from charged particle beam P and neutron beam efferent 12B and charged particle beam P is transferred to the beam transport line 13 of neutron beam efferent 12A or neutron beam efferent 12B.Accelerator 11 and beam transport line 13 charged particle beam be configured in Y-shaped generates the indoor (with reference to figure 3) of room 10a.It is the enclosed space covered by concrete shielding wall W that charged particle beam generates room 10a.
Accelerator 11 makes charged particle (such as proton) accelerate, and is made charged particle beam P (such as proton beam) and penetrates.It is the ability of the charged particle beam P of 40mm, 60kW (=30MeV × 2mA) that accelerator 11 has such as generation beam radius.
Either party in beam transport line 13 couples of neutron beam efferent 12A or neutron beam efferent 12B optionally penetrates charged particle beam P.Beam transport line 13 has: the 1st transport part 14, is connected to accelerator 11; Beam direction switch 15, switches the direct of travel of charged particle beam P; 2nd transport part 16A, for transferring to neutron beam efferent 12A by charged particle beam P; And the 3rd transport part 16B, for charged particle beam P is transferred to neutron beam efferent 12B.2nd transport part 16A is connected to beam direction switch 15 and neutron beam efferent 12A.3rd transport part 16B is connected to beam direction switch 15 and neutron beam efferent 12B.That is, beam transport line 13 branches into the 2nd transport part 16A and the 3rd transport part 16B in beam direction switch 15.
Beam direction switch 15 utilizes the direct of travel of switch electromagnet control cincture beam of charged particles P.In addition, beam direction switch 15 can make charged particle beam P depart from regular track and guide beam trap (not shown) into.According to beam trap, the output carrying out charged particle beam P can be waited before the treatment to confirm.In addition, neutron-capture therapy system 100 can be the structure not possessing beam trap, and now, beam direction switch 15 is not attached to beam trap.
1st transport part 14, the 2nd transport part 16A and the 3rd transport part 16B comprise the beam adjustment part 17 for charged particle beam P respectively.Beam adjustment part 17 comprises for the horizontal type steering gear of the axle of adjustment belt beam of charged particles P and the steering gear of horizontal vertical type, four-way sickle etc. for the quadrupole electric magnet dispersed of inhibition zone beam of charged particles P and the shaping for charged particle beam P.In addition, each 1st transport part 14, the 2nd transport part 16A and the 3rd transport part 16B can be the structures not possessing beam adjustment part 17.
In addition, the 2nd transport part 16A and the 3rd transport part 16B can comprise current monitor as required.Current monitor the real time measure irradiates the current value (that is, electric charge, exposure dose rate) in the charged particle beam P of neutron beam efferent 12A and neutron beam efferent 12B.Further, the 2nd transport part 16A and the 3rd transport part 16B can comprise charged particle beam scanner section 18 (with reference to figure 4) as required.Charged particle beam scanner section 18 scanning strip beam of charged particles P, carries out charged particle beam P and controls relative to the irradiation of target T (with reference to figure 4).Charged particle beam scanner section 18 such as control cincture beam of charged particles P relative to the irradiation position of target T.
Fig. 4 be represent neutron-capture therapy system 100 neutron beam efferent 12A near figure.At this, neutron beam efferent 12A and neutron beam efferent 12B has mutually the same structure.Therefore, below neutron beam efferent 12A is described, omits the explanation of neutron beam efferent 12B.As shown in Figure 4, neutron beam efferent 12A comprises target T for generating neutron beam N, for the decelerating material 12a that makes neutron beam N slow down and shield 12b.In addition, decelerating material 12a and shield 12b forms adjustor.
Target T is subject to the irradiation of charged particle beam P and produces neutron beam N.Target T is such as formed by beryllium (Be), is diametrically the discoideus of 160mm.
Decelerating material 12a makes the neutron beam N penetrated from target T slow down.Be decelerated that material 12a slows down and the neutron beam N that is reduced to predetermined energy is also called as treatment neutron beam.Decelerating material 12a is such as set to the stepped construction be made up of multiple different materials.The material of decelerating material 12a is suitably selected according to all conditions such as the energy of charged particle beam P.Such as, when the output from accelerator 11 (with reference to figure 2) is the proton beam of 30MeV, and during as target T use beryllium target, as the material of decelerating material 12a, lead, ferrum, aluminum or calcium fluoride can be used.Further, when the output from accelerator 11 is the proton beam of 11MeV, and during as target T use beryllium target, as the material of decelerating material 12a, heavy water (D2O) or Lead difluoride can be used.When the output from accelerator 11 is the proton beam of 2.8MeV, and during as target T use lithium target, as the material of decelerating material 12a, all-metal (ProductName: the mixture of aluminum, aluminium fluoride, lithium fluoride) can be used.Further, when the output from accelerator 11 is the proton beam of 50MeV, and during as target T use tungsten target, as the material of decelerating material 12a, ferrum or all-metal can be used.
Shield 12b shields neutron beam N and the lonizing radiation such as the gamma-rays that produces emit to outside with the generation of this neutron beam N, and being embedded at least partially of shield 12b separates the wall W1 (with reference to figure 3) that charged particle beam generates room 10a and exposure cell 30A.
In neutron beam efferent 12A, charged particle beam P irradiates in target T, produces neutron beam N thus.The neutron beam N produced is decelerated material 12a and slows down.Further, the neutron beam N penetrated from decelerating material 12a passes through collimator 86, is irradiated to the patient S on treatment table 80.Neutron beam N comprises fast neutron bundle, epithermal neutron beam and thermal beam, also with gamma-rays.Wherein, carry out nuclear reaction primarily of thermal beam and absorption to the boron in the tumor in patient S body, play effective therapeutic effect.In addition, a part for the epithermal neutron beam comprised in the beam of neutron beam N is also decelerated and becomes the thermal beam playing above-mentioned therapeutic effect in the body of patient S.The neutron beam of thermal beam to be energy be below 0.5eV.
[exposure cell]
Exposure cell 30A, 30B are described.As shown in Figure 3, neutron-capture therapy system 100 possesses 2 exposure cells 30A, 30B.Exposure cell 30A is configured on the extended line in the direction that the 2nd transport part 16A extends.Exposure cell 30B is configured on the extended line in the direction that the 3rd transport part 16B extends.In addition, neutron beam N is taken out in the direction that can also intersect to the direction extended with the 2nd transport part 16A or the 3rd transport part 16B.Now, exposure cell 30A is not limited to be configured on the extended line in the direction that the 2nd transport part 16A extends, can at the position configuration exposure cell 30A corresponding with the removing direction of neutron beam N.Similarly, exposure cell 30B is also not limited to be configured on the extended line in the direction that the 3rd transport part 16B extends, can at the position configuration exposure cell 30B corresponding with the removing direction of neutron beam N.At this, exposure cell 30B has identical structure with exposure cell 30A.Therefore, below exposure cell 30A is described, omits the explanation of exposure cell 30B.
Exposure cell 30A is in the room of indoor placement device patient S in order to irradiate neutron beam N to patient S.As an example, the size of exposure cell 30A is width 3.5m × depth 5m × height 3m.Exposure cell 30A possesses the shielding space 30S that conductively-closed wall W2 surrounds and the door D1 come in and gone out for treatment table 80.
Further, as shown in Figure 4, between exposure cell 30A and shield 12b, cover (wall body) 31 is provided with.Cover 31 forms a part for the side wall surface of exposure cell 30A.This cover 31 is provided with the collimator installation portion 31a of the delivery outlet becoming neutron beam N.Collimator installation portion 31a is the opening for embedding collimator 86.
As shown in Figure 3, shielding wall W2 forms shielding space 30S, and described shielding space suppresses lonizing radiation to invade indoor from the outdoor of exposure cell 30A and lonizing radiation emit to outdoor phenomenon indoor.That is, shielding wall W2 blocks the neutron beam N from the indoor of exposure cell 30A to outdoor radiation.This shielding wall W2 can be integrally formed with dividing the shielding wall W that charged particle beam generates room 10a.Further, the concrete wall of shielding wall W2 can be thickness be more than 2m.Be provided with between charged particle beam generation room 10a and exposure cell 30A and separate the wall W1 that charged particle beam generates room 10a and exposure cell 30A.This wall W1 forms a part of shielding wall W.
Door D1 suppresses the lonizing radiation in shielding space 30S to emit to contact room 40A.To contact room 40A, will carry out aftermentioned.Door D1 is arranged to block the gateway be communicated with contact room 40A.Door D1 is made up of lonizing radiation shield members such as lead, and has specific thickness.Door D1 obtains driving force by motor etc., and the guide rail being arranged at 30A indoor, exposure cell moves.D1 is heavier for door, therefore as the mechanism being used for driving gate D1, uses high torque motor or decelerator etc.Further, door D1 can have and notifies the function of staff to the discrepancy of exposure cell 30A.Such as, close door D1 by under the state that is configured with treatment table 80 in the indoor of exposure cell 30A, confirm staff's keeping out of the way from exposure cell 30A.
Further, the indoor of exposure cell 30A are configured with video camera 32.Video camera 32 is for observing the situation of the patient S of 30A indoor, exposure cell.Video camera 32 is configured at the position can taking patient S in the indoor of exposure cell 30A.Video camera 32 without the need to obtaining the image of pinpoint accuracy, as long as the image of the state that can confirm patient S can be obtained.As video camera 32, such as, ccd video camera can be used.
[preparation room]
Preparation room 50A, 50B are described.Neutron-capture therapy system 100 possesses 2 preparation rooms 50A, 50B.Preparation room 50A is configured to along Y direction away from exposure cell 30A.At this, preparation room 50B has the structure identical with preparation room 50A.Therefore, below preparation room 50A is described, omits the explanation of preparation room 50B.
Preparation room 50A is the room for implementing to irradiate the work needed for neutron beam N in exposure cell 30A to patient S.In preparation room 50A, such as, implement the para-position (with reference to figure 6) patient S being bound by treatment table 80 or collimator 86 and patient S.Therefore, preparation room 50A has and can configure treatment table 80 and can carry out the size of the degree of preparation like a cork for staff around the treatment table 80 of indoor.
The wall W3 separating preparation room 50A and exposure cell 30A is provided with between preparation room 50A and exposure cell 30A.The thickness of wall W3 is such as 3.2m.That is, preparation room 50A and exposure cell 30A along Y direction only away from 3.2m.
Wall W3 is provided with the contact room 40A being communicated to exposure cell 30A from preparation room 50A.Contact room 40A is for the room fettering the treatment table 80 of patient S mobile between preparation room 50A and exposure cell 30A.Contact room 40A has the width that can pass through for treatment table 80.Further, contact room 40A there is staff can the current height of walking.Therefore, about the size of contact room 40A, as an example, be width 1.5m × depth 3.2m × height 2.0m.A D2 is configured with between preparation room 50A and contact room 40A.In addition, the wall W3 separating preparation room 50B and exposure cell 30B is provided with contact room 40B.Contact room 40B has the structure identical with contact room 40A.
In addition, preparation room 50A, 50B can be the shielding space that conductively-closed wall W surrounds as exposure cell 30A, 30B.Further, preparation room 50A, 50B also can be the space that non-conductively-closed wall W surrounds.
[caretaker room]
Neutron-capture therapy system 100 possesses 1 caretaker room 70.Caretaker room 70 is rooms of the whole operation for the enforcement of management and utilization neutron-capture therapy system 100.Have at least 1 management personnel to enter into caretaker room 70, and use be configured at the indoor of caretaker room 70 surveillance equipment and for operate neutron beam generating unit 10 control device 71 to manage whole operation.Such as, the management personnel entering caretaker room 70 from the indoor of caretaker room 70 by the situation of the preparation in visual confirmation preparation room 50A, 50B.Further, enter the management personnel of caretaker room 70 by operating control device 71, such as, control beam transport line 13, to the target T illumination bands beam of charged particles P corresponding with the exposure cell 30A that need irradiate neutron beam N.And, enter the management personnel of caretaker room 70 by operating control device 71, control the start and stop of the irradiation of neutron beam N.In addition, in neutron-capture therapy, before entering preparation room 50A, 50B also to patient S carry out various preparation (such as, PET check or boron (
10etc. B) injection etc.).For this early-stage preparations operation, also can manage at caretaker room 70, management comprises the whole operation of the neutron-capture therapy of the irradiation treatment based on neutron-capture therapy system 100 thus.
Caretaker room 70 is configured between preparation room 50A and preparation room 50B, so that adjacent with 2 preparation rooms 50A, 50B.Caretaker room 70 is adjacent with preparation room 50A at a corner part, adjacent with preparation room 50B at another corner part.The window 72A of the indoor for visual preparation room 50A is configured with between caretaker room 70 and preparation room 50A.The window 72B of the indoor for visual preparation room 50B is configured with between caretaker room 70 and preparation room 50B.The monitor 73 of the image of the video camera 32 for showing the indoor being arranged at exposure cell 30A, 30B is configured with in caretaker room 70.Management personnel can confirm the situation of the patient S of 30A indoor, exposure cell by the camera review being shown in this monitor 73.
[treatment table]
Treatment table (mounting table) 80 is described.Fig. 5 is the axonometric chart of the treatment table 80 representing neutron-capture therapy system 100.Treatment table 80 is neutron-capture therapy mounting table.Patient S is restricted to prescribed form by treatment table 80, and under the state of restriction posture, moves to exposure cell 30A from preparation room 50A.As shown in Figure 5, treatment table 80 possesses: base portion 81; Drive division 82, for mobile foundation portion 81 on the ground; Top board (mounting portion) 83, for loading patient S; Mechanical arm 84, for making top board 83 relative to base portion 81 relative movement; Collimator 86, for specifying the irradiation visual field of neutron beam N; And collimator fixed part 87, for collimator 86 is fixed on base portion 81.
Base portion 81 forms the matrix part for the treatment of table 80.Base portion 81 has basic courses department 81a and is configured at the support 81b on basic courses department 81a.Basic courses department 81a when top view in the rectangular-shaped shape comprising the 1st limit 81c and the 2nd limit 81d.Such as, the 1st limit 81c is set to longer than the 2nd limit 81d.In the 1st limit 81c of this basic courses department 81a or the 2nd limit 81d, the length at least one limit is set to the width being less than contact room 40A, 40B.Support 81b is rectangular-shaped outer shape.The lower surface of support 81b is fixed on the upper surface of basic courses department 81a.The upper surface of support 81b is configured with mechanical arm 84 and collimator fixed part 87.
Drive division 82 is arranged at the lower face side of the basic courses department 81a of base portion 81.The all wt of drive division 82 supporting base portion 81, mechanical arm 84, top board 83, collimator 86, collimator fixed part 87 and patient S, and can be moved them on the ground.Drive division 82 such as uses 4 wheels.Give by motor etc. the driving force being used for movement on the ground to these wheels.
Mechanical arm 84 makes top board 83 relative to base portion 81 relative movement.That is, mechanical arm 84 makes to be bound by patient's S-phase on top board 83 for collimator 86 relative movement being fixed on base portion 81.Be not particularly limited from ground to the height of top board 83, but be preferably set to the height of the degree of the constraint of the patient S that can easily implement on top board 83 etc.Mechanical arm 84 comprises: lifting unit 84a, is configured at the upper surface side of base portion 81; 1st arm 84b, end side is arranged at lifting unit 84a in the mode that can rotate around vertical rotating shaft A1; And the 2nd arm 84c, end side be arranged at another side of the 1st arm 84b in the mode that can rotate around vertical rotating shaft A2.That is, mechanical arm 84 has 2 vertical rotating shaft A1, the A2 of being separated by the horizontal direction.
Top board 83 is in the flat outer shape with long side direction.This top board 83 is configured to adjust the position relative to base portion 81.The length that the health that the length of the long side direction of top board 83 is set to patient S can couch, the length of such as 2m.The end side of top board 83 is installed on another side of the 2nd arm 84c in the mode that can rotate around vertical axle A3.This top board 83 is provided with the limited part (not shown) of the health for immobilized patients S.In addition, limited part can be installed on top board 83.
By this mechanical arm 84,1st arm 84b is rotated around vertical rotating shaft A1 relative to lifting unit 84a, 2nd arm 84c is rotated around vertical rotating shaft A2 relative to the 1st arm 84b, top board 83 is rotated around vertical rotating shaft A3 relative to the 2nd arm 84c, in XY plane, top board 83 can be moved to desired position thus.And, the health of patient S can be made to rotate around vertical axle relative to the direction of illumination of neutron beam N and rotate.Further, lifting unit 84a is moved up and down relative to support 81b, top board 83 can be made thus to move along Z-direction.Therefore, by this mechanical arm 84, the degree of freedom of patient's S-phase for the posture of the collimator 86 be fixed in base portion 81 can be improved.
Collimator 86 is for limiting the range of exposures of neutron beam N.Collimator 86 is provided with the such as circular opening 86a for regulation range of exposures.Below, by the center (center of opening 86a) of the irradiation field of collimator 86 defined, and when treatment table 80 is configured at exposure cell 30A, 30B to irradiate neutron beam N, the virtual axis that upstream and downstream direction along neutron beam N extends is called " irradiation central axis ", and label symbol " C " represents.Further, the tabular of collimator 86 such as in tetragon.The outer shape of collimator 86 is corresponding with the interior shape of the collimator installation portion 31a in exposure cell 30A.
Collimator fixed part 87 is fixed on the upper surface of the support 81b of base portion 81.Collimator fixed part 87 is for being held in fixed position relative to base portion 81 by collimator 86.Collimator fixed part 87 has horizontal plate 87a and erected piece 87b, the shape roughly in L-shaped.Support 81b is fixed in one end of horizontal plate 87a, and the other end is outstanding to the direction along X-axis from the side 81e of support 81b.The width setup of the horizontal direction (Y-axis) of horizontal plate 87a is the width of the horizontal direction (Y-axis) being less than base portion 81.The other end of horizontal plate 87a is fixed in one end of erected piece 87b, and the other end of the front end extended upward is provided with collimator 86.
Erected piece 87b is fixed on the horizontal plate 87a more outstanding to the direction along X-axis than the side 81e of base portion 81, and therefore collimator 86 remains on the position more outstanding to horizontal direction than the side 81e of base portion 81.By collimator 86 is remained on this position, when collimator 86 being installed on the collimator installation portion 31a of cover 31, base portion 81 and top board 83 etc. can be suppressed to disturb cover 31.
The width H1 of the horizontal direction of collimator fixed part 87 is set to the width H2 of the horizontal direction being less than base portion 81.At this, the width H1 of the horizontal direction of collimator fixed part 87 refers to the Breadth Maximum along the collimator fixed part 87 on the direction of Y-axis.That is, width H1 is the Breadth Maximum on the direction (Y-axis) orthogonal with vertical direction (Z axis) with the direction (X-axis) irradiating central axis C.Further, the width H2 of the horizontal direction of base portion 81 refers to the Breadth Maximum along the base portion 81 on the direction of Y-axis.That is, the length of the 1st limit 81c of 81a based on width H2.Further, the width H3 of the horizontal direction of collimator 86 is set to the width H2 of the horizontal direction being less than base portion 81.At this, the width H3 of the horizontal direction of collimator 86 refers to the Breadth Maximum along the collimator 86 on the direction of Y-axis.
Treatment table 80 is provided with the collimator 86 being fixed on base portion 81, and be provided with can relative to the top board 83 of base portion 81 relative movement.Therefore, it is possible to the posture of bound patient S is remained on assigned position relative to the opening 86a of collimator 86 on top board 83.Therefore, it is possible to pass through the neutron beam N of the opening 86a of collimator 86 to the irradiation target illumination of the regulation of patient S.
Owing to being provided with drive division 82 on treatment table 80, therefore, it is possible to move under the state keeping patient's S-phase for the posture of collimator 86.Therefore, without the need to the para-position of the irradiation central axis C of the irradiation target and collimator 86 of implementing patient S in exposure cell 30A, but can implement in preparation room 50A, 50B in advance.Further, carried out the maintenance for the treatment of table 80 by outdoor treatment table 80 being moved to exposure cell 30A, the working time needed for maintenance of the treatment table 80 in the higher place of radiological dose can be reduced.
In treatment table 80, the Breadth Maximum H1 of collimator fixed part 87 is set to below the Breadth Maximum H2 of base portion 81, therefore in the place passed through for treatment table 80, is determined according to the Breadth Maximum H2 of base portion 81 by required width for treatment table 80.Therefore, even if when the place passed through for treatment table 80 arranges attendant equipment, the phenomenon making attendant equipment maximize to make treatment table 80 pass through also can be suppressed.That is, the expansion of the width of contact room 40A, 40B can be suppressed, and the maximization of the subsidiary facility of a D1 and door D2 can be suppressed.And, owing to inhibit the maximization of a D1 and door D2, therefore, it is possible to safety when improving shutter door D1 and door D2, and the high output of driving mechanism can be suppressed make the driving mechanism of a D1 and door D2 to simplify.And the maximization of door D1 and door D2 is inhibited, the driving mechanism of door D1 and door D2 is simplified, therefore, it is possible to suppress the increase of the construction cost of neutron-capture therapy system 100 entirety.
In treatment table 80, collimator fixed part 87 is given prominence to from the side 81e of base portion 81, and the collimator 86 being therefore fixed on collimator fixed part 87 is held in from the outstanding position of the side 81e of base portion 81.Therefore, when collimator 86 being installed on the collimator installation portion 31a of cover 31, pedestal 81 can not disturb cover 31, therefore, it is possible to like a cork collimator 86 is installed on collimator installation portion 31a.
In treatment table 80, by making top board 83 rotate around rotating shaft A1, A2, A3 relative to base portion 81, the long side direction of top board 83 can be made consistent with the moving direction for the treatment of table 80.Therefore, the size for the gateway that treatment table 80 passes through etc. is not the length of the long side direction of top board 83, but specifies according to the size of base portion 81.Therefore, it is possible to suppress the expansion of the size of the gateway passed through for treatment table 80 etc. further.That is, the width for contact room 40A, 40B for the treatment of table 80 movement specifies according to the 1st limit 81c of the base portion 81 for the treatment of table 80 or the 2nd limit 81d.
[treatment flow process]
Be described using the treatment flow process of neutron-capture therapy system 100.First, patient S is entered to the preparation of the regulation before neutron-capture therapy system 100.Then, guide patient S and staff to enter in preparation room 50A, patient S is couched on top board 83.Further, staff uses limited part that the health of patient S is strapped in top board 83.Then, the para-position of patient S and collimator 86 is implemented.More specifically, the para-position of the irradiation target of patient S and the irradiation central axis C of collimator 86 is implemented.
Fig. 6 is the figure of the para-position for illustration of patient S and collimator 86.As shown in Fig. 6 (a) and Fig. 6 (b), after just patient S being bound by top board 83, sometimes irradiating target R and depart from YZ plane with irradiation central axis C.In this explanation, irradiation target R is set to and only departs from Yd relative to irradiation central axis C to Y direction, only departs from Zd to Z-direction.Therefore, as shown in Fig. 6 (c) and Fig. 6 (d), the lifting unit 84a of staff's driving device arm 84 makes top board 83 to Z-direction only displacement Zd, and the 1st arm 84b of driving device arm 84 and the 2nd arm 84c makes top board 83 to Y direction only displacement Yd.Being moved by this, irradiation target R can be irradiated on central axis C being positioned at.In addition, can adjust from collimator 86 to the distance along X-direction of irradiating between target R by driving device arm 84 as required.And, the direction of illumination of the neutron beam N relative to patient S can be adjusted as required around vertical rotating shaft A1 ~ A3 rotary actuation machinery arm 84.The working condition in the indoor enforcement of this preparation room 50A is monitored by the management personnel entering adjacent caretaker room 70.
As shown in Figure 3, after terminating the para-position of patient S and collimator 86, treatment table 80 is moved to exposure cell 30A.Now, can be determined to enter exposure cell 30A by the management personnel of caretaker room 70.Such as, reported the main points of the work completed in preparation room 50A to management personnel by staff.The management personnel obtaining reporting, when being judged as entering exposure cell 30A, open the door D2 separating preparation room 50A and contact room 40A.Further, the drive division 82 of operated by personnel's treatment table 80, moves to contact room 40A by treatment table 80.Now, staff together moves to contact room 40A along with treatment table 80 and treatment table 80.
If staff and treatment table 80 enter contact room 40A, then management personnel's closing door D2.The open door D1 separating contact room 40A and exposure cell 30A of management personnel after closing.In addition, the opening and closing order of door D1, D2 is not limited to this order, such as, can open door D1 and door D2 simultaneously.The drive division 82 of operated by personnel's treatment table 80, moves to the indoor of exposure cell 30A by treatment table 80, and staff itself also moves to the indoor of exposure cell 30A.The work (with reference to figure 6 (e)) collimator 86 being installed on the collimator installation portion 31a being arranged on cover 31 is mainly in the work of the indoor enforcement of exposure cell 30A.If the installation of end of collimation device 86, then staff moves to contact room 40A, utilizes the switch etc. being arranged at contact room 40A indoor, closing door D1.Closed by this, report personnel from the situation that exposure cell 30A keeps out of the way to caretaker room.
After the management personnel of caretaker room 70 have retreated to preparation room 50A by visual confirmation staff, management personnel, by operating control device 71, start the irradiation of neutron beam N.As an example, irradiation time is 1 hours.About the situation of the patient S in irradiation, the monitor 73 of caretaker room 70 is utilized to monitor the image being arranged at the video camera 32 of the indoor of exposure cell 30A.In addition, management personnel, when confirming the patient S in treatment and having abnormal, carry out the judgement stopping to irradiate.
If through the irradiation time pre-entered in control device 71, then control device 71 stops the irradiation of neutron beam N automatically.Further, staff enters the indoor of exposure cell 30A, and treatment table 80 is moved to preparation room 50A.At the limited part of the indoor releasing immobilized patients S of preparation room 50A, to the outdoor guiding patient S of preparation room 50A.By above step, complete the neutron-capture therapy using neutron-capture therapy system 100.
According to neutron-capture therapy system 100, can optionally irradiate neutron beam N to multiple exposure cell 30A, 30B respectively.Further, according to neutron-capture therapy system 100, the preparation being used for patient S being irradiated to neutron beam N can be implemented in each preparation room 50A, 50B, therefore shorten the time of the preparation in exposure cell 30A, 30B.Therefore, be placed in by patient S in the time of exposure cell 30A, 30B, the ratio shared by the irradiation time of neutron beam N improves, therefore, it is possible to improve the utilization ratio of exposure cell 30A, 30B.And the irradiation time of neutron-capture therapy is longer than the radiation cure of roentgenotherapia or proton beam therapy and so on.Therefore, in neutron-capture therapy system 100, based on the efficient activity implementing preparation while such as carrying out treating in an exposure cell 30A in another exposure cell 30B or preparation room 50B, contribute to very much the raising of the running efficiency of whole system.Further, according to neutron-capture therapy system 100, in a caretaker room 70, implement the control being used for irradiating neutron beam N to exposure cell 30A, 30B, the adjustment therefore making neutron beam occupy becomes efficient activity, can improve the utilization ratio of accelerator 11.Therefore, according to neutron-capture therapy system 100, the utilization ratio of exposure cell 30A, 30B can be improved, and improve the utilization ratio of accelerator 11, therefore, it is possible to improve the running efficiency of whole system.
Neutron-capture therapy system 100 possesses window 72A, the 72B that can observe the indoor of preparation room 50A, 50B from caretaker room 70.According to this structure, the indoor of each preparation room 50A, 50B can be observed from caretaker room 70, the progress of the preparation of the situation of each preparation room 50A, 50B and the indoor of preparation room 50A, 50B therefore, it is possible to grasp patient S comes in and goes out.Therefore, it is possible to improve the running efficiency of neutron-capture therapy system 100 further.
Neutron-capture therapy system 100 also possesses the video camera 32 of the indoor for observing exposure cell 30A, 30B from caretaker room 70.According to this structure, the indoor of each exposure cell 30A, 30B can be observed from caretaker room 70 by video camera 32, therefore, it is possible to grasp the situation of the patient S in each exposure cell 30A, 30B.Therefore, it is possible to improve the safety of neutron-capture therapy system 100.
In neutron-capture therapy system 100, treatment table 80 can move between the indoor of exposure cell 30A, 30B and outdoor, therefore, it is possible to be used for the preparation of patient S being irradiated to neutron beam N in the outdoor enforcement of exposure cell 30A, 30B after treatment table 80 being moved to the outdoor of exposure cell 30A, 30B.Therefore, due to can in a part of preparation of the indoor of enforcement exposure cell, outdoor 30A, 30B of exposure cell 30A, 30B, therefore, it is possible to shorten the time needed for preparation of the indoor of exposure cell 30A, 30B.
In neutron-capture therapy system 100, the charged particle beam P produced is irradiated produce neutron in target T by accelerator 11.According to this neutron beam generating unit 10, can by neutron-capture therapy system 100 miniaturization.
In neutron-capture therapy system of the present invention, the quantity of preparation room and exposure cell is not limited to 2.Fig. 7 is the figure of the structure of the neutron-capture therapy system 101 represented involved by variation.As shown in Figure 7, neutron-capture therapy system 101 can possess 3 exposure cells 30A, 30B, 30C and 3 preparation rooms 50A, 50B, 50C.Now, neutron beam generating unit 10 comprises corresponding with exposure cell 30A, 30B, 30C respectively 3 neutron beam efferents 12A, 12B, 12C.Beam transport line 13 has the 2nd transport part 16A charged particle beam P being transferred to neutron beam efferent 12A, the 3rd transport part 16B charged particle beam P being transferred to neutron beam efferent 12B, charged particle beam P is transferred to the 4th transport part 16C of neutron beam efferent 12C.And caretaker room 70 is configured to adjacent with all preparation room 50A, 50B, 50C.Further, fenestrate 72A is set between caretaker room 70 and preparation room 50A, fenestrate 72B is set between caretaker room 70 and preparation room 50B, fenestrate 72C is set between caretaker room 70 and preparation room 50C.
Neutron-capture therapy system 101 involved by variation can play the effect identical with neutron-capture therapy system 100.That is, in neutron-capture therapy system 101, in a caretaker room 70, implement the control being used for optionally irradiating neutron beam N to exposure cell 30A, 30B, 30C, therefore the utilization ratio of accelerator 11 is improved.Therefore, it is possible to improve the running efficiency of whole system.
< the 2nd embodiment >
Neutron-capture therapy system involved by 2nd embodiment is described.Fig. 8 is the figure of the structure of the neutron-capture therapy system 102 represented involved by the 2nd embodiment.As shown in Figure 8, neutron-capture therapy system 102 does not possess preparation room, and caretaker room 70 and 2 adjacent configurations of exposure cell 30A, 30B, these aspects are different from the neutron-capture therapy system 100 involved by the 1st embodiment.Other structures are identical with neutron-capture therapy system 100, therefore, below omit repeat specification.
In neutron-capture therapy system 100 involved by 1st embodiment, in the indoor of preparation room 50A, 50B, implement the constraint of patient S to treatment table 80 and the para-position of collimator 86 and patient S.These work can be implemented in the place beyond preparation room 50A, 50B of being set up in parallel with exposure cell 30A, 30B.In neutron-capture therapy system 102 involved by 2nd embodiment, the outdoor of exposure cell 30A, 30B of surrounding from conductively-closed wall W, to after the outdoor that non-conductively-closed wall W surrounds takes out for the treatment of table 80, moves to determined location.Further, in determined location, the patient S preparation such as para-position to the constraint for the treatment of table 80 and collimator 86 and patient S is implemented.Therefore, neutron-capture therapy system 102 can be set to the structure not possessing preparation room 50A, 50B.
In neutron-capture therapy system 102, in a caretaker room 70, implement the control for irradiating neutron beam N to exposure cell 30A or exposure cell 30B, therefore, it is possible to the adjustment occupied of efficient activity neutron beam N is to improve the utilization ratio of accelerator 11.Therefore, according to neutron-capture therapy system 102, the utilization ratio of accelerator 11 is improved, therefore, it is possible to improve the running efficiency of whole system.
Fig. 9 is the figure of the structure of the neutron-capture therapy system 103 represented involved by variation.As shown in Figure 9, neutron-capture therapy system 103 can possess 3 exposure cells 30A, 30B, 30C.Now, neutron beam generating unit 10 comprises corresponding with exposure cell 30A, 30B, 30C respectively 3 neutron beam efferents 12A, 12B, 12C.And caretaker room 70 is configured to adjacent with all exposure cells 30A, 30B, 30C.
Neutron-capture therapy system 103 can play the effect identical with neutron-capture therapy system 102.That is, in neutron-capture therapy system 103, in a caretaker room 70, implement the control being used for optionally irradiating neutron beam N to exposure cell 30A, 30B, 30C, therefore the utilization ratio of accelerator 11 is improved.Therefore, it is possible to improve the running efficiency of whole system.
< the 3rd embodiment >
Neutron-capture therapy system involved by 3rd embodiment is described.Figure 10 is the figure of the structure of the neutron-capture therapy system 104 represented involved by the 3rd embodiment.Figure 11 is the figure of the configuration representing neutron-capture therapy system 104.As shown in Figures 10 and 11, in neutron-capture therapy system 104, treatment table 80 is not provided with collimator 86, collimator 86 is arranged at exposure cell 30A, 30B and virtual collimator 51 is arranged at preparation room 50A, 50B, these aspects are different from the neutron-capture therapy system 100 involved by the 1st embodiment.Except above-mentioned difference, below the structure different from the neutron-capture therapy system 100 involved by the 1st embodiment is described in detail.
Exposure cell 30A, 30B have the collimator 86 of the collimator installation portion 31a being installed on cover 31.Further, exposure cell 30A, 30B has the reference section (the 1st position specified part) 33 for treatment table 80 being positioned in the indoor of exposure cell 30A, 30B assigned position.By making this reference section 33 consistent with the labelling of the assigned position being arranged at treatment table 80, treatment table 80 can be configured at position identical all the time.That is, treatment table 80 can be set to constant relative to the position of collimator 86 when each irradiation neutron beam N.
Preparation room 50A, 50B have virtual collimator (labelling) 51.Virtual collimator 51 is the labelling of the para-position for patient S.Virtual collimator 51 has the opening with the roughly the same shape of opening 86a of the collimator 86 of exposure cell 30A, 30B.Further, preparation room 50A, 50B has the reference section (the 2nd position specified part) 52 for treatment table 80 being positioned in the indoor of preparation room 50A, 50B assigned position.By making this reference section 52 and the markers align of assigned position being arranged at treatment table 80, treatment table 80 can be configured at position identical all the time.In addition, virtual collimator 51 can not be the three-dimensional object of the shape of simulation collimator 86, also can be the figure of shape when representing top view collimator 86.Such as, can be the projection image of the collimator 86 being projected on screen.Also can be the image of the collimator 86 being shown in monitor.Further, virtual collimator 51 can be the labelling of the wall being depicted in preparation room 50A.
At this, the relation of the virtual collimator 51 in the relation of the collimator 86 in exposure cell 30A, 30B and reference section 33, preparation room 50A, 50B and reference section 52 is described.Reference section 52 is set to identical relative to the position relationship of collimator 86 with reference section 33 relative to the position relationship of virtual collimator 51.That is, in preparation room 50A, 50B of neutron-capture therapy system 104, the position relationship of the collimator 86 in exposure cell 30A, 30B and treatment table 80 can be simulated.Therefore, the para-position implementing patient S relative to virtual collimator 51 in preparation room 50A, 50B has same meaning with the para-position implementing patient S relative to collimator 86 in exposure cell 30A, 30B.
The para-position of the patient S in neutron-capture therapy system 104 and collimator 86 is further described.In below illustrating, be described for the work in exposure cell 30A and preparation room 50A.
Figure 12 is the figure of the para-position for illustration of patient S and collimator 86.First, collimator 86 is configured at treatment table 80, and virtual collimator 51 is configured at the virtual collimator installation site of preparation room 50A.Collimator 86 and virtual collimator 51 is prepared by each patient S.Then, as shown in Figure 12 (a) and Figure 12 (b), reference section 52a, 52b is utilized to carry out the para-position for the treatment of table 80, and fixation for treatment platform 80.At this, reference section 52a specifies the position of the treatment table 80 in X-direction.Further, reference section 52b specifies the position of the treatment table 80 in Y direction.
Then, patient S is strapped on top board 83.After firm constraint is complete, the position of the irradiation target R of patient S is departed from relative to the irradiation central axis C of virtual collimator 51.Therefore, as shown in Figure 12 (c) and Figure 12 (d), by the lifting unit 84a operating treatment table 80, top board 83 is moved to the direction along Z axis, make the position consistency of the Z-direction of the irradiation target R of irradiation central axis C and patient S thus.Then, the mechanical arm 84 of operation treatment table 80 makes top board 83 move to the direction along XY plane, makes the position consistency of the Y direction of the irradiation target R of irradiation central axis C and patient S thus.
If the para-position in preparation room 50A terminates, then treatment table 80 is made to move to exposure cell 30A.Further, utilize reference section 33a, 33b para-position is carried out to treatment table 80 after be fixed.At this, reference section 33a specifies the position of the treatment table 80 in X-direction.Further, reference section 33b specifies the position of the treatment table 80 in Y direction.By utilizing the location of reference section 33a, 33b, be reproduced in the position relationship of the virtual collimator 51 and patient S adjusted in preparation room 50A in the indoor of exposure cell 30A.That is, the state of irradiation target R relative to the position para-position of the irradiation central axis C of collimator 86 of patient S is reproduced.So, according to neutron-capture therapy system 104, by means of only carrying out the positioning work utilizing reference section 33 in exposure cell 30A, the state of irradiation target R relative to the position para-position of the irradiation central axis C of collimator 86 of patient S just can be become.Therefore, it is possible to shorten the working time of the indoor of exposure cell 30A.
According to neutron-capture therapy system 104, the effect identical with the neutron-capture therapy system 100 involved by the 1st embodiment can be played.That is, neutron-capture therapy system 104 can implement the part work in exposure cell 30A, 30B in advance in preparation room 50A, 50B, therefore, it is possible to improve the utilization ratio of exposure cell 30A, 30B.Further, in neutron-capture therapy system 104, in a caretaker room 70, implement the control being used for optionally irradiating neutron beam N to exposure cell 30A, 30B, 30C, therefore the utilization ratio of accelerator 11 is improved.Therefore, it is possible to improve the running efficiency of whole system.
According to neutron-capture therapy system 104, by preparation room 50A, 50B relative to virtual collimator 51 para-position patient S, the para-position of the patient S in exposure cell 30A, 30B can be simulated.Therefore, it is possible to shorten the time of the para-position work of the patient S in exposure cell 30A, 30B.
According to neutron-capture therapy system 104, after patient S to be placed in the treatment table 80 by reference section 52a, 52b location by the indoor of preparation room 50A, 50B, make patient's S-phase for virtual collimator 51 para-position.Further, the treatment table 80 being placed with patient S if make moves to exposure cell 30A, 30B, and passes through the position of reference section 33a, 33b locating therapy platform 80, then become the state of the para-position carrying out collimator 86 and patient S.Therefore, it is possible to implement the collimator 86 in exposure cell 30A, 30B and the para-position work of patient S in preparation room 50A, 50B in analog, shorten the time of the para-position work of the patient S in exposure cell 30A, 30B therefore, it is possible to further.
Above, neutron-capture therapy system of the present invention is illustrated, but the present invention is not limited to above-mentioned embodiment.Such as, in above-mentioned embodiment, the numerical value such as concrete size, distance of illustrative constitutive requirements understands for being convenient to the example illustrated, do not limit the present invention.
Further, treatment table 80 can be the chair of the seat portion replacing top board 83 to possess taking a seat for patient S, the backrest erected relative to seat portion and the head maintaining part that is arranged at backrest upper end.
Such as, neutron-capture therapy system can use the neutron beam N directly penetrated from atomic pile, instead of uses the neutron beam N produced by accelerator 11 and target T.That is, neutron beam generating unit 10 can be made up of atomic pile.Figure 13 is the figure of the neutron-capture therapy system 105 represented involved by variation.As shown in figure 13, in neutron-capture therapy system 105, neutron beam generating unit 10 replace having accelerator 11, beam transport line 13 and neutron beam efferent 12A, 12B structure and there is atomic pile 91.Neutron beam N can be directly penetrated from atomic pile 91.According to the neutron beam generating unit 10 with atomic pile 91, the power consumption needed for running of neutron-capture therapy system can be suppressed.In addition, according to the structure utilizing accelerator 11 and target T to produce neutron beam N as the 1st ~ 3rd embodiment, compared with the neutron beam generating unit 10 with atomic pile 91, can miniaturization.
Further, in neutron beam generating unit 10, as neutron source, radiation isotope or the small cores fusion reactor of radiation neutron beam can be used.
Utilizability in industry
Neutron-capture therapy system involved according to an embodiment of the present invention, can shorten the time in exposure cell.
Symbol description
10-neutron beam generating unit, 11-accelerator, 12A, 12B, 12C-neutron beam efferent, 13-beam transport line, 14-the 1st transport part, 15-beam direction switch, 16A-the 2nd transport part, 16B-the 3rd transport part, 16C-the 4th transport part, 17-beam adjustment part, 18-charged particle beam scanner section, 30A, 30B, 30C-exposure cell, 31-covers (wall body), 32-video camera, 33-reference section (the 1st position specified part), 40A, 40B-contact room, 50A, 50B, 50C-preparation room, 51-virtual collimator (labelling), 52-reference section (the 2nd position specified part), 70-caretaker room, 71-control device, 72A, 72B, 72C-window, 73-monitor, 80-treatment table, 81-base portion, 82-drive division, 83-top board, 84-mechanical arm, 86-collimator, 87-collimator fixed part, 91-atomic pile, 100, 101, 102, 103, 104, 105-neutron-capture therapy system, A1, A2, A3-rotating shaft, C-irradiates central axis, D1, D2-door, N-neutron beam, P-charged particle beam, R-irradiates target, S-patient, T-target, W-shielding wall, W1, W2, W3-wall.
Claims (4)
1. a neutron-capture therapy system, irradiate neutron beam to irradiated body, it possesses:
Exposure cell, can be configured at indoor to irradiate described neutron beam to described irradiated body by described irradiated body, and is used to block described neutron beam and covers to the shielding wall of outdoor radiation indoor;
Neutron beam generating unit, can to the described neutron beam of the indoor irradiation in described exposure cell; And
Mounting table, is configured to load described irradiated body and moves between the indoor and outdoor of described exposure cell.
2. neutron-capture therapy system according to claim 1, wherein,
Described neutron-capture therapy system also possesses the preparation room be set up in parallel with described exposure cell,
The labelling of the para-position for described irradiated body is provided with in described preparation room indoor.
3. neutron-capture therapy system according to claim 2, wherein,
Be provided with in indoor, described exposure cell the range of exposures for specifying described neutron beam collimator and for specifying the 1st position specified part of described mounting table in the position of indoor, described exposure cell,
Also be provided with for specifying the 2nd position specified part of described mounting table in the position of described preparation room indoor in described preparation room indoor,
Position relationship between described labelling with described 2nd position specified part is identical with the position relationship between described collimator and described 1st position specified part.
4. the neutron-capture therapy system according to any one of claims 1 to 3, wherein,
Described mounting table has base portion and to be configured in described base portion and to support the top board of irradiated body, and described top board can rotate around vertical axle relative to described base portion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013037210A JP5940471B2 (en) | 2013-02-27 | 2013-02-27 | Neutron capture therapy system |
| JP2013-037210 | 2013-02-27 | ||
| PCT/JP2013/081511 WO2014132501A1 (en) | 2013-02-27 | 2013-11-22 | Neutron capture therapy system |
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| Publication Number | Publication Date |
|---|---|
| CN104780975A true CN104780975A (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201380058589.4A Pending CN104780975A (en) | 2013-02-27 | 2013-11-22 | Neutron capture therapy system |
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| Country | Link |
|---|---|
| JP (1) | JP5940471B2 (en) |
| KR (2) | KR101876905B1 (en) |
| CN (1) | CN104780975A (en) |
| WO (1) | WO2014132501A1 (en) |
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| TWI819931B (en) * | 2021-12-22 | 2023-10-21 | 大陸商中硼（廈門）醫療器械有限公司 | Radiation irradiation system and mounting table control method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5940471B2 (en) | 2016-06-29 |
| KR101731436B1 (en) | 2017-04-28 |
| KR20170021373A (en) | 2017-02-27 |
| WO2014132501A1 (en) | 2014-09-04 |
| JP2014161623A (en) | 2014-09-08 |
| KR20150067317A (en) | 2015-06-17 |
| KR101876905B1 (en) | 2018-07-10 |
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