JP6529524B2 - Particle therapy equipment - Google Patents

Description

The present invention relates to a particle beam therapy system equipped with an irradiation device such as a rotating gantry for radiation therapy.

There is known a facility for treating cancer by irradiating the patient with accelerated particles such as a proton beam. This type of equipment includes a cyclotron that generates accelerated particles, a rotatable irradiation device (rotary gantry) that emits accelerated particles from any direction to a patient, and a guide that guides accelerated particles generated by the cyclotron to the irradiation device. It has a line. The rotating gantry is provided with a treatment table on which the patient lies, an irradiation unit which irradiates the patient with accelerated particles, and an introduction line which introduces the accelerated particles guided by the induction line to the irradiated unit.

The irradiation unit is configured to be rotatable with respect to the patient, and various modes are known as the form of the introduction line of acceleration particles to the irradiation unit. For example, the introduction line (beam transport device 7) described in Patent Document 1 first has a connecting portion connected to the induction line on the rotation axis that is the rotation center of the irradiation unit (the irradiation device 8), and It is curved in a substantially U shape on a plane passing through the rotation axis and is connected to the irradiation unit. In addition, the introduction line (delivery system 12) described in Patent Document 2 has a connection portion connected to the induction line on the rotation axis, and is curved so as to twist in the circumferential direction side of the rotation axis and the irradiation portion It is linked to (nozzle32).

JP 2001-259058 A U.S. Pat. No. 4,917,344

However, in the conventional equipment, the irradiation equipment such as the rotating gantry and the cyclotron are generally arranged on the same floor (hierarchical layer), which results in the enlargement of the equipment and requires a large site area. , Installation in urban areas etc was difficult.

An object of the present invention is to solve the above problems, and an object thereof is to provide an accelerated particle irradiation facility capable of efficiently installing a particle accelerator and an irradiation device on a predetermined site.

The present invention is a particle beam treatment facility for irradiating accelerated particles to a patient, comprising: a particle accelerator for generating accelerated particles; a plurality of irradiation devices having irradiation units for irradiating accelerated particles on the patient; And an induction line for guiding accelerated particles generated by the accelerator to a plurality of irradiation devices, and the particle accelerator is installed on one floor in a multi-story building interior, and a plurality of particle accelerators are provided in the building interior all irradiation apparatus, in the building, are installed in different floors are the floors that the particle accelerator is installed, all of the plurality of irradiation devices provided in the building from a first direction along the horizontal direction At least a portion thereof is located on a straight line extending in the vertical direction from the particle accelerator, both when viewed and when viewed from the second direction orthogonal to the first direction along the horizontal direction. .

According to the present invention, the particle accelerator and the irradiator are respectively installed in different levels of the building, so according to the site area, for example, the irradiator is installed right above the particle accelerator to reduce the occupied area of the site as much as possible. It also becomes possible, and as a result, it becomes easy to install a particle accelerator and an irradiation apparatus efficiently in a predetermined site.

According to the present invention, it is possible to efficiently install a particle accelerator and an irradiation device on a predetermined site.

It is a sectional side view of particle beam therapy equipment concerning a 1st embodiment of the present invention. It is a sectional side view which expands and shows a gantry chamber. It is a perspective view showing a rotation gantry concerning this embodiment. It is a schematic sectional drawing which shows the state which fractured | ruptured the rotation gantry which concerns on this embodiment along the rotation axis. It is an arrangement | positioning figure of the particle beam treatment installation which shows the ground first floor part of a building. It is a schematic sectional drawing which shows the state which fractured | ruptured the building along the VI-VI line of FIG. It is a schematic sectional drawing which shows the state which fractured | ruptured the building along the VII-VII line of FIG. It is an arrangement | positioning figure of the particle beam treatment installation which shows the underground 1st floor part of a building. It is a sectional side view of particle beam therapy equipment concerning a 2nd embodiment of the present invention. It is the sectional side view which looked at the particle beam therapy installation concerning a 2nd embodiment from the direction which met the axis of rotation of rotation gantry. It is the sectional side view which looked at the particle beam therapy installation concerning a 2nd embodiment from the direction which intersects perpendicularly with the axis of rotation of a rotation gantry. It is a side sectional view of particle beam therapy equipment concerning a 3rd embodiment of the present invention. It is the sectional side view which looked at the particle beam therapy installation concerning a 3rd embodiment from the direction which met the axis of rotation of a rotating gantry. It is the sectional side view which looked at the particle beam therapy installation concerning a 3rd embodiment from the direction which intersects perpendicularly with the axis of rotation of a rotation gantry. It is a sectional side view of particle beam therapy equipment concerning a 4th embodiment of the present invention. It is sectional drawing which shows the state which fractured | ruptured a building along the XVI-XVI line of FIG. It is a sectional side view of particle beam therapy equipment concerning a 5th embodiment of the present invention. It is a sectional side view of particle beam therapy equipment concerning a 6th embodiment of the present invention. It is sectional drawing which shows the state which fractured | ruptured a building along the XIX-XIX line of FIG. It is sectional drawing which shows the state which fractured | ruptured a building along the XX-XX line of FIG. It is a sectional side view of the particle beam therapy installation concerning a 7th embodiment. It is sectional drawing which shows the state which fractured | ruptured a building along the XXII-XXII line of FIG. It is sectional drawing which shows the state which fractured | ruptured a building along the XXIII-XXIII line of FIG.

Hereinafter, preferred embodiments of the accelerated particle irradiation equipment according to the present invention will be described with reference to the drawings. In the present embodiment, a case where the accelerated particle irradiation equipment is a particle beam treatment equipment will be described. The particle beam treatment equipment is applied to, for example, cancer treatment, and is a device that irradiates a proton beam (acceleration particles) to a tumor (irradiation target) in a patient's body.

As shown in FIG. 1, a particle beam treatment facility 1A includes a cyclotron (particle accelerator) 2 for generating a proton beam, and a rotatable rotary gantry (irradiation device) 3 for irradiating a patient with a proton beam from any direction. , And an induction line 4 for guiding the proton beam generated by the cyclotron 2 to the rotating gantry 3. Further, each device of the particle beam treatment facility 1A is installed in each room of a building (building) 6A having a hierarchical structure of a plurality of floors.

The proton beam generated by the cyclotron 2 is guided to the rotating gantry 3 through the trajectory formed by the induction line 4. The induction line 4 is provided with a quadrupole electromagnet 41 (see FIG. 7) for focusing the proton beam and a deflection electromagnet 42 for forming a predetermined trajectory.

The cyclotron 2 includes a vacuum box 21 for accelerating ions inside, and an ion source 22 for supplying ions into the vacuum box 21. The vacuum box 21 communicates with the induction line 4.

As shown in FIGS. 2 to 4, the rotating gantry 3 is disposed inside a treatment unit 31 (see FIG. 3) on which a patient lies, a rotating unit 30 provided to surround the treatment unit 31, and a rotating unit 30. The irradiation unit 32 irradiates a patient on the treatment table 31 with a proton beam, and the introduction line 33 introduces the proton beam guided by the induction line 5 to the irradiation unit 32. Rotating gantry 3
Is rotationally driven by a motor (not shown) and stopped by a braking device (not shown). In the following description, the front of the rotating gantry 3 means the side on which the rotary unit 30 is open so that the treatment table 31 is installed to allow the patient to enter and leave, and the back is: It means the side behind it.

The rotating portion 30 is rotatable, and includes a first cylindrical portion 34, a cone portion 35, and a second cylindrical portion 36 in order from the front side. The first cylindrical portion 34, the cone portion 35, and the second cylindrical portion 36 are coaxially arranged and fixed to each other. The irradiation unit 32 is disposed on the inner surface of the first cylindrical portion 34, and
It is oriented in the axial direction of the cylindrical portion 34. The treatment table 31 is disposed in the vicinity of the axial center (rotational axis) P of the first cylindrical portion 34. The second cylindrical portion 36 is smaller in diameter than the first cylindrical portion 34, and the cone portion 35 is formed in a conical shape so as to connect the first cylindrical portion 34 and the second cylindrical portion 36.

A front ring 39 a is installed on the front end outer peripheral portion of the first cylindrical portion 34, and a rear ring 39 b is installed on the rear end outer peripheral portion of the first cylindrical portion 34. The first cylindrical portion 34 is rotatably supported by a roller device 40 (see FIG. 2) disposed below the first cylindrical portion 34. The outer circumferential surfaces of the front ring 39 a and the rear ring 39 b abut on the roller device 40, and a rotational force is applied by the roller device 40.

The introduction line 33 is connected to the induction line 4 on the back side of the rotating gantry 3. The introductory line 33 includes two sets of 45 degree deflection electromagnets and two sets of 135 degree deflection electromagnets. The lead-in line 33 has a radial lead-in line 33a communicating with the lead-in line 4 and extending in the radial direction, and a circumferential lead-in line 33b continuously following the radial lead-in line 33a and extending in the circumferential direction. . In the introduction line 33, a beam transport pipe (not shown) is provided along the trajectory of the proton beam.

The radially introductory line 33a is bent by 90 degrees (45 degrees × 2 times) from the start end connected to the induction line 4 on the rotation axis P in the second cylindrical portion 36 and extends in the radial direction The end portion is a path portion projecting to the outside of the first cylindrical portion 34. In addition, circumferential introduction line 3
3b is 1 in the circumferential direction of the rotary portion 30 from the start end portion in communication with the end portion of the radial introduction line 33a.
It is a path portion that extends in a curved manner by 35 degrees and is further curved radially inward by 135 degrees so that the end portion communicates with the irradiation portion 32.

The circumferential introduction line 33 b is disposed along the circumferential direction at a position spaced outward from the outer circumferential surface of the first cylindrical portion 34, and is supported by the gantry 37. The gantry 37 is a first cylindrical portion 3.
It is formed so as to project radially outward from the outer peripheral surface of 4.

The counterweight 38 is disposed to face the circumferential introduction line 33 b and the gantry 37 with the rotation axis P interposed therebetween. The counterweight 38 is fixed to the outer peripheral surface of the first cylindrical portion 34 and installed so as to project outward in the radial direction. By installing the counterweight 38, a weight balance between the introduction line 33 and the rack 37 is secured. Also, the length from the rotation axis P to the outer edge of the counterweight 38 is
The building 6A can be miniaturized if it is shorter than the length of the outer edge of the building 6A.

Moreover, the rotating gantry 3 of this embodiment, the front and rear along the rotation axis P direction of the length L ₁ is formed in a short thin than the maximum outer diameter of the rotating portion 30 (maximum width). The longitudinal length L _1, for example, from the front end of the first cylindrical portion 34, until the rear end of the second cylindrical portion 36 is a length L _1.
Maximum outer diameter of the rotary part 30 and is a maximum outer diameter in the direction perpendicular to the rotation axis P, a portion corresponding to the length r ₁ between the rotation axis P and the outer edge of the circumferential introduction line 33b (maximum outer diameter = Radius r ₁ ×
2). The portion corresponding to the length from the rotation axis P to the outer edge of the counterweight 38 may be configured to have the maximum outer diameter.

The induction line 4 (see FIGS. 1 and 7) includes a beam transport tube (not shown) through which the proton beam passes, a plurality of quadruple electromagnets 41 for focusing the proton beam and shaping the proton beam, and a curved trajectory of the proton beam. It comprises a plurality of deflection electromagnets 42 etc. arranged for forming.

Next, referring to FIG. 1 and FIG. 5 to FIG. 8, particle beam treatment equipment 1 in the building 6A and the building 6A.
The arrangement of each device of A will be described. The building 6A is, for example, a reinforced concrete, steel-frame-concrete building, and each room is separated by a concrete radiation shielding wall. In addition, the building 6A is a cyclotron 2 that constitutes a main part of the particle beam treatment facility 1A.
, A main building part (building) 61 in which the rotating gantry 3 and the induction line 4 are installed, and a sub-building part 62 in which rooms for receiving power supply facilities and other facilities and rooms for receiving patients are provided.
And have. The sub-building section 62 has a hierarchical structure of the third basement floor and the first floor, and a cooler room R3 is provided in the third basement portion, and a power supply room R4 and the like are provided in the second basement portion. In addition, a radioactive material storage R5 and a staff room R6 are provided on the first floor under the ground, and a treatment operation room R7, a reception R8, a locker room R9, a toilet R10, a waiting room R11 for a patient are provided on the ground first floor. A passage R12 for entering the gantry chamber R2 is provided.

The main building section 61 has a hierarchical structure of a basement floor and a ground floor, and the basement base portion (bottom layer)
In the cyclotron room (accelerator room) R1 provided in the above, the cyclotron 2 is installed, and a gantry room (irradiation apparatus room) R provided immediately above the cyclotron room R1 on the ground first floor portion
A rotating gantry 3 is provided at 2. Further, the main building portion 61 is provided with a connecting passage 9 in which a guiding line 4 connecting the cyclotron 2 and the rotating gantry 3 is disposed.

The cyclotron chamber R1 has a substantially rectangular shape in a plan view, and is surrounded by the (radiation) shielding wall 71 (see FIG. 8). Cyclotron 2 is the front side of cyclotron room R1 (
The proton beam generated by the cyclotron 2 and disposed on the upper side shown in FIG. 8 is derived from the back side of the cyclotron 2. Further, a communication passage 9 formed along the vertical direction is connected to the back side of the cyclotron chamber R1. The communication passage 9 extends along the vertical direction (vertical direction), and communicates with the back side (the lower side shown in FIG. 5) of the gantry chamber R2.

The guiding line 4 (see FIG. 7) extends horizontally in communication with the vacuum box 21 of the cyclotron 2 and is bent approximately 90 degrees upward in the vertical direction and passes through the inside of the communication passage 9 to be horizontally again. It is bent approximately 90 degrees and is in contact with the rotating gantry 3. The straight part of the induction line 4
A plurality of quadrupole electromagnets 41 are disposed, and two sets of deflection electromagnets 42 for changing the path by a rotational angle of 45 degrees are disposed in the curved portion, thereby realizing a curvature of approximately 90 degrees. Further, the guiding line 4 is disposed on a virtual plane PL extending in a two-dimensional manner, that is, in the vertical direction (vertical direction). As a result, it is possible to reduce the number of quadrupole electromagnets 41 and deflection electromagnets 42 for focusing and curving the proton beam guided to the induction line 4.

The gantry chamber R2 is provided directly above the cyclotron chamber R1. The gantry chamber R <b> 2 is formed in a substantially rectangular shape in plan view, and is partitioned by the radiation shielding wall 81. The gantry room R2 is provided with an inlet floor 87a through which the patient enters and exits, and a low floor 87c which is one step lower than the inlet floor 87a. The rotating gantry 3 is installed on the low floor portion 87 c with the treatment table 31 directed to the entrance floor 87 a side, so that the patient can easily reach the treatment table 31. Further, on the wall on the inlet floor portion 87a side of the gantry chamber R2, an entrance and exit communicating with the passage R12 of the maze structure is formed.

The rotary gantry 3 is disposed such that the portion having the largest width is along the largest width of the installation space of the rotary gantry 3 in the gantry chamber R2. Specifically, the rotating gantry 3 is disposed along a diagonal line of the substantially rectangular gantry chamber R2, and a device for efficiently utilizing the space in the gantry chamber R2 is provided.

As shown in FIG. 1, FIG. 2, FIG. 6 and FIG. 7, the ceiling 86 of the main building portion 61 avoids interference with the rotating portion 30 of the rotating gantry 3 and an opening serving as a loading port for loading components. 92 are formed. The opening 92 is covered from the outside of the gantry chamber R2 (main building portion 61) by a shield member 93 different from the ceiling 86. The shield member 93 is formed, for example, by laminating a plurality of lead shielding plates 93a. As the shielding member 93, a shielding plate made of concrete which is the same material as the ceiling 86 may be stacked. Also, for example,
It may be a shield member which is not a plate but a block.

Further, the shield member 93 may be made of heavy concrete as another material.
The heavy concrete shield member 93 has high radiation shielding properties although it is expensive as compared with the ordinary concrete shield member 93. For example, in the case of using a heavy concrete shield member, the thickness can be about 2/3 that in the case of using a normal concrete shield member. Moreover, construction can be made easy by using the shielding member 93 modularized as a plate-shaped component.

In the particle beam therapy system 1A according to the present embodiment, the cyclotron 2 and the rotating gantry 3 are
Since the rotary gantry 3 is installed directly above the cyclotron 2 in each of the different layers of the building 6A, the occupied area of the site can be reduced as much as possible according to the site area, and as a result, It becomes easy to install the cyclotron 2 and the rotating gantry 3 efficiently on a predetermined site.

In the present embodiment, only one rotating gantry 3 is installed on the ground first floor, but even if the rotating gantry 3 is added, the cyclotron 2 is installed at the lowest layer of the building 6A. It is not necessary to relocate the cyclotron 2 and the second floor or third floor is provided above the ground first floor where the rotating gantry 3 has already been installed, and the rotating gantry 3 is appropriately placed on such upper layer. The installation of the rotating gantry 3 is easy because it can be installed. In addition, in anticipation of future expansion, for example, cyclotron room R1 is provided in the third floor underground, gantry chamber R2 is provided in the second floor underground, and the first basement floor is kept open, and in the case of extension If a new gantry chamber R2 is provided in the part and the rotary gantry 3 is installed, the burden of carrying in and installing the rotary gantry 3 which is a heavy load can be reduced.

Further, the irradiation apparatus according to the present embodiment can irradiate the proton beam generated by the cyclotron 2 to the irradiation target toward the irradiation target, and can rotate the rotation part 30. It is a rotating gantry 3 having an irradiation unit 32 whose irradiation direction changes accordingly. And since rotation gantry 3 is thin in which the length in the direction of rotation axis P is shorter than the maximum outer diameter (maximum width) in the direction orthogonal to rotation axis P, it is effective for downsizing of facilities, The cyclotron 2 and the rotating gantry 3 can be efficiently installed on the site of
Second Embodiment

Next, a particle beam therapy facility (accelerated particle irradiation facility) 1B according to a second embodiment of the present invention will be described with reference to FIGS. 9 to 11. In addition, regarding the particle radiotherapy installation 1B which concerns on this embodiment, about the element and member similar to 1A of particle radiotherapy equipment which concern on 1st Embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

The building 6B according to the present embodiment is, for example, a reinforced concrete, steel-frame-concrete building, and each room is separated by a concrete radiation shielding wall. Also,
The building 6B includes a main building section (building) 63 and a sub-building section 64. The sub-building section 64 has a hierarchical structure of the third floor and the fourth floor, and each floor is provided with a cooling device room R3, a power supply room R4, a staff room R6, a radiation storage room R5, a treatment operation room R7, etc. ing.

The main building section 63 has a hierarchical structure of the first basement floor and the second floor above the ground, and the first basement portion (bottom layer)
The cyclotron (particle accelerator) 2 is installed in the cyclotron room (accelerator room) R1 provided in the first gantry chamber R13 provided immediately above the cyclotron room R1 on the ground first floor. In the second gantry chamber R14 provided directly above the first gantry chamber R13 in the second floor portion of the ground, a second rotating gantry 8 is provided. In addition, the main building portion 63 includes the cyclotron 2 and the first rotating gantry 7 and the second.
There is provided a communication passage 11 in which a guiding line 10 is disposed to communicate with the rotating gantry 8 of the second embodiment. The first rotating gantry 7 and the second rotating gantry 8 have substantially the same configuration as the rotating gantry 3 according to the first embodiment, and thus detailed description will be omitted.

The guiding line 10 is in communication with the vacuum box 21 of the cyclotron 2 and extends in the horizontal direction, and is bent at approximately 90 degrees upward and bent vertically upward and branched from the extracting path 10a passing through the communication passage 11 and the extracting path 10a And the first branch path 10b that is bent approximately 90 degrees in the horizontal direction with respect to the takeout path 10a and is in communication with the first rotating gantry 7, and branch from the takeout path 10a and with respect to the takeout path 10a. And a second branch path 10c that is bent approximately 90 degrees in the horizontal direction and is in communication with the second rotating gantry 8.

A plurality of quadruple electromagnets 41 are disposed in the linear portion of the induction line 10, and two sets of deflection electromagnets 42 for changing the path by a rotational angle of 45 degrees are disposed in the curved portion, and the curvature of approximately 90 degrees Is realized. In addition, a virtual plane PL extending along a two-dimensional, that is, vertical direction (vertical direction) (see FIG. 10). The extraction path 10a of the guiding line 10, the first branch path 10b, and the second branch path 10c. It is located on the top. As a result, a quadrupole electromagnet 41 and a deflection electromagnet 42 for focusing and curving the proton beam guided to the induction line 10
You can reduce the number of

Here, the symmetry of the trajectory of the proton beam is easy to hold if it is two-dimensionally on the same virtual plane PL, but if it is three-dimensionally deviated, adjustment for holding is difficult. In the particle beam therapy facility 1B according to the present embodiment, the extraction path 10a of the guiding line 10 and the plurality of branch paths 10b and 10c are on the same virtual plane PL, so that the symmetry of the proton beam trajectory can be easily maintained. It is effective to improve the irradiation accuracy.

According to the particle beam therapy system 1B of the present embodiment, as in the particle beam therapy system 1A of the first embodiment, the cyclotron 2, the first rotating gantry 7, and the second rotating gantry 8 in a predetermined site. And can be installed efficiently. Further, since the cyclotron 2 is installed in the lowermost layer of the building 6B, the installation of the rotating gantry 7, 8 is easy.

Furthermore, the particle beam treatment facility 1 B includes a plurality of rotating gantry 7, 8, and the plurality of rotating gantry 7, 8 are respectively installed in different layers of the main building portion 63. Therefore, since it becomes possible to install a plurality of rotating gantry 7 and 8 so as to line up in the vertical direction according to the site area, it becomes easy to install a plurality of rotating gantry 7 and 8 efficiently on a predetermined site.
Third Embodiment

Next, a particle beam therapy facility (accelerated particle irradiation facility) 1C according to a third embodiment of the present invention will be described with reference to FIGS. 12 to 14. In addition, regarding the particle beam treatment facility 1C according to the present embodiment, the same reference numerals are given to the same elements and members as the particle beam treatment facility 1A according to the first embodiment or the particle beam treatment facility 1B according to the second embodiment. And a detailed description is omitted.

The building 6C according to the present embodiment is, for example, a reinforced concrete structure or a steel frame concrete structure, and each room is separated by a concrete radiation shielding wall. Also,
The building 6C includes a main building section 65 and a sub-building section 64.

The main building section 65 has a hierarchical structure of the first basement floor and the second floor above the ground, and the first basement portion (bottom layer)
A cyclotron (particle accelerator) 2 is installed in a cyclotron room (accelerator room) R1 provided in the gantry room, and a gantry room R provided immediately above the cyclotron room R1 on the ground first floor portion
A rotating gantry 3 is provided at 15 and a stationary irradiation unit 12 is provided at a fixed irradiation chamber R16 provided immediately above the gantry chamber R15 in the second floor portion above the ground. Further, the main building portion 65 is provided with a communication passage 11 in which a guiding line 10 for connecting the cyclotron 2 with the rotating gantry 3 and the stationary irradiation device 12 is disposed.

The stationary type irradiation apparatus 12 includes a treatment table 12b on which the patient sits, an irradiation unit 12a that irradiates a proton beam toward the patient on the treatment table 12b, and an introduction line that introduces a proton beam induced by the induction line 10 to the irradiation unit 12a. It is equipped with 12c. Unlike the rotating gantry 3 described above, the stationary irradiation device 12 does not include the rotating unit 30. The irradiation unit 12a is fixed at a predetermined position, and irradiation of the proton beam to a specific site of the patient is adjusted by vertical movement or rotation of the treatment table 12b. The stationary radiation device 12 is used for treatment of prostate and eye diseases.

In the particle beam treatment facility 1C according to the present embodiment, the cyclotron 2, the rotating gantry 3 and the fixed type irradiation device 12 are respectively installed in different layers of the building 6C. In particular, the rotating gantry directly above or above the cyclotron 2 3 or fixed type irradiation apparatus 12 installed, it is possible to reduce the occupied area of the site as much as possible according to the area of the site, and as a result, the cyclotron 2, the rotating gantry 3 and the fixed type irradiation apparatus in a predetermined site It becomes easy to install 12 and efficiently. Further, since the cyclotron 2 is installed at the lowermost layer of the building 6C, the installation of the rotating gantry 3 is easy.

Also, the takeout path 10a of the induction line 10, the first branch path 10b, and the second branch path 1
0c is disposed on a virtual plane PL extending along a two-dimensional, ie, vertical direction (vertical direction). As a result, the number of quadruple electromagnets 41 and deflection electromagnets 42 for converging and curving the proton beam guided to the induction line 10 can be reduced. Furthermore, since the extraction path 10a and the plurality of branch paths 10b and 10c are on the same virtual plane PL, the symmetry of the trajectory of the proton beam can be easily maintained, which is effective in improving the irradiation accuracy.

Furthermore, the particle beam treatment facility 1C is provided with two types of irradiation devices, namely, the rotating gantry 3 and the fixed type irradiating device 12, and the rotating gantry 3 and the fixed type irradiating device 12 are respectively installed in different tiers of the main building portion 65. It is done. Therefore, according to the site area, it becomes possible to install the rotating gantry 3 and the fixed type irradiation device 12 to be aligned in the vertical direction, so different types of rotating gantry 3 and the fixed type irradiation device 12 can be installed in a predetermined site. And can be installed efficiently.

Furthermore, since the particle beam treatment facility 1C includes the rotary gantry 3 which is a rotary irradiation device, and the fixed irradiation device 12 having the irradiation unit 10a whose irradiation direction is fixed, the rotation gantry 3
It is possible to properly use the fixed irradiation apparatus 12 and the fixed irradiation apparatus 12 and is effective for appropriate irradiation of the proton beam to the patient.
Fourth Embodiment

Next, a particle beam therapy facility (accelerated particle irradiation facility) 1D according to a fourth embodiment of the present invention will be described with reference to FIG. 15 and FIG. In addition, regarding particle beam treatment equipment 1D which concerns on this embodiment, about the element and member similar to particle beam treatment equipment 1A-1C which concern on 1st-3rd embodiment, the same code | symbol is attached | subjected and detailed description Omit.

The building 6D according to the present embodiment is, for example, a reinforced concrete, steel-frame-concrete building, and each room is separated by a concrete radiation shielding wall. Also,
The main structure of the building 6D is composed of a hierarchical structure of the first basement and the second floor above ground
A cyclotron (particle accelerator) 2 is installed in a cyclotron room (accelerator room) R1 provided in the lowermost layer). In addition, a first gantry chamber R17 is provided immediately above the cyclotron chamber R1 on the ground first floor portion, and the first gantry gantry R17 is provided with a first rotating gantry 7
Is installed. In the second floor portion of the ground, a second gantry chamber R18 is provided at a position shifted in the horizontal direction with respect to the top right of the first gantry chamber R17.
A second rotating gantry 8 is provided at 18.

Further, the building 6D is provided with a communication passage 14 in which a guiding line 13 for connecting the cyclotron 2 with the first rotating gantry 7 and the second rotating gantry 8 is disposed. The communication passage (see FIG. 16) 14 is provided substantially at the center of the building 6D. The guiding line 13 is in communication with the vacuum box 21 of the cyclotron 2 and extends in the horizontal direction, and is bent at approximately 90 degrees upward and bent vertically upward to a takeout path 13a passing through the communication passage 14 and a branch from the takeout path 13a And the first branch path 13b which is bent approximately 90 degrees in the horizontal direction with respect to the takeout path 13a and is in communication with the first rotating gantry 7, and branch from the takeout path 13a and with respect to the takeout path 13a. And a second branch path 13c that is bent approximately 90 degrees in the horizontal direction and is in communication with the second rotating gantry 8. In the particle beam treatment facility 1D according to the present embodiment, an imaginary vertical plane Pa passing through the rotation axis P of the first rotating gantry 7 and an imaginary vertical plane Pb passing through the rotation axis P of the second rotating gantry 7 are the same. The first branch path 13b and the second branch path 13c are not arranged on the same virtual plane.

In particle beam treatment equipment 1D, cyclotron 2 and first rotating gantry 7 and second rotating gantry 8 are respectively installed in different layers of building 6D, and the occupied area of the site is reduced as much as possible according to the site area. As a result, the cyclotron 2 on a given site
And the rotating gantry 7, 8 can be installed efficiently. In addition, Cyclotron 2
Since it is installed in the lowermost layer of D, the installation of the rotating gantry 7, 8 is easy.

Furthermore, in the particle beam treatment facility 1D, since the first rotating gantry 7 and the second rotating gantry 8 are installed in a staggered manner in the horizontal direction, the highest height of the first rotating gantry 7 is the highest. The second rotating gantry 8 can be installed by avoiding the portion where it is located, and it becomes easy to compress the height of the building 6D.

In the particle beam treatment facility 1 D, the first rotating gantry 7 is disposed directly above the cyclotron 2, but the first rotating gantry 7 is disposed horizontally offset from directly above the cyclotron 2. A staggered arrangement may be employed in which the two rotating gantry 8 are arranged vertically above the cyclotron 2. Alternatively, a staggered arrangement may be employed in which both rotating gantry 7 and 8 are alternately shifted left and right with respect to a vertical line passing through the center of cyclotron 2.
Fifth Embodiment

Next, a particle beam therapy facility (accelerated particle irradiation facility) 1E according to a fifth embodiment of the present invention will be described with reference to FIG. In addition, regarding particle beam treatment equipment 1E which concerns on this embodiment, about the element similar to particle beam treatment equipment 1A-1D which concerns on 1st-4th embodiment, a member, etc.
The same reference numerals are given and the detailed description is omitted.

The building 6E according to the present embodiment is, for example, a reinforced concrete, steel-frame-concrete building, and each room is separated by a concrete radiation shielding wall. Also,
The building 6E has a hierarchical structure of the first basement floor and the second floor above the ground. In the particle beam therapy facility 1E according to the present embodiment, the arrangement of the first rotating gantry 7 and the second rotating gantry 8 and the upper and lower positions of the cyclotron 2 is reversed as compared with the above-described embodiments. Cyclotron room (accelerator room) where the cyclotron (particle accelerator) 2 is installed in the second floor part (uppermost layer) on the ground of 6E
A first gantry chamber R20 in which the first rotary gantry 7 is installed is provided on the ground first floor portion, and a second ground floor portion (lowermost layer) is provided on the first ground floor portion. A second gantry chamber R21 in which the rotating gantry 8 is installed is provided.

In the particle beam therapy system 1E according to the present embodiment, the cyclotron 2 and the first rotating gantry 7
And the second rotating gantry 8 are respectively installed in different levels of the building 6E, and it is possible to reduce the occupied area of the site as much as possible according to the site area, and as a result, cyclotron 2 and a predetermined site. It becomes easy to install the first rotating gantry 7 and the second rotating gantry 8 efficiently.
Sixth Embodiment

Next, a particle beam therapy facility (accelerated particle irradiation facility) 1F according to a sixth embodiment of the present invention will be described with reference to FIG. 18 to FIG. In addition, regarding particle beam treatment equipment 1F concerning this embodiment, about the elements, members, etc. similar to particle beam treatment equipment 1A-1E concerning the 1st-5th embodiment, the same numerals are attached and detailed explanation Omit.

The building 6F according to the present embodiment is, for example, a reinforced concrete, steel-frame-concrete building, and each room is separated by a concrete radiation shielding wall. Also,
Building 6F includes a main building section 66 and a sub-building section 67. The sub-building section 67 has a hierarchical structure of the third basement and the first floor, and each floor has a cooling device room R3, a power supply room R4, and a staff room R.
5. A radiation storage room R6, a treatment operation room R7, etc. are provided.

The main building section 66 has a hierarchical structure of the first basement floor and the first floor, and the first basement portion (bottom layer)
The cyclotron room (accelerator room) R22 installed in the
Is installed. On the ground floor, the first gantry room R23 and the second gantry room R2
A first rotary gantry 7 is provided in the first gantry chamber R23, and a second rotary gantry 8 is provided in the second gantry chamber R24.

The first gantry chamber R23 and the second gantry chamber R24 are adjacent to each other with the radiation shielding wall 71 interposed therebetween. The first gantry chamber R23 is formed in a substantially rectangular shape, and a passage R12 having a labyrinth structure is formed on the front side, and communicates with a space provided with the reception desk, a waiting room for the patient, and the like. The first rotating gantry 7 is disposed along the diagonal of the substantially rectangular first gantry chamber R23 with the front facing the passage side. The second gantry chamber R24 and the second rotary gantry 8 are symmetrical to the first gantry chamber R23 and the first rotary gantry 7 with the radiation shielding wall 71 interposed therebetween.

The back side of the first rotating gantry 7 and the second rotating gantry 8 is formed with a communication passage 17 through which a guiding line 16 forming a trajectory of a proton beam passes. The induction line 16 extends horizontally in communication with the vacuum box 21 of the cyclotron 2 and extends approximately 90 vertically upward.
A first rotating gantry 7 and a second rotating gantry 7 branched from the takeout path 16a in two directions from the takeout path 16a. First branch path 16b and second branch path 16c in communication with each of the rotating gantry 8 of
And have.

The first branch path 16b is disposed on the horizontal surface and connected to the first rotating gantry 7, and the arrangement of the plurality of quadrupole electromagnets 41 and the deflection electromagnet 42 causes convergence of the proton beam and formation of a predetermined curved track. Is planned. The second branch path 16 c is disposed on the same horizontal plane as the first branch path 16 b and is connected to the second rotating gantry 8.

The second branch path 16c is branched away from the takeout path 16a and diverted away from the second rotating gantry 8 more than the first branch path 16b and the branch portion 16d separated from the first branch path 16b. It has a detour intersection 16e intersecting with the first branch path 16b, and a connection 16f connected from the detour intersection 16e to the second rotating gantry 8.

A certain distance (path length) is required as the second branch path 16 c in order to form a predetermined trajectory for appropriately introducing the proton beam from the extraction path 16 a to the second rotating gantry 8. In the particle beam therapy facility 1 according to the present embodiment, the second branch gantry 18 is not separated from the first rotary gantry 7 in order to secure the path length of the second branch path 16c. By providing the detour intersection portion 16e in the path 16c, the path length of the second branch path 16c can be easily secured, and further, the second branch path 16c and the first branch path 16b are made compact by compactness. Therefore, the arrangement of the first rotating gantry 7 and the second rotating gantry 8 can be made as close as possible. As a result, the first rotating gantry 7 and the second rotating gantry 8 can be efficiently arranged in a predetermined area of a site.

In the particle beam treatment facility 1F according to the present embodiment, the cyclotron 2 and the first rotating gantry 7
And the second rotating gantry 8 are respectively installed in different levels of the building 6F, and it is possible to reduce the occupied area of the site as much as possible according to the site area, and as a result, cyclotron 2 and a predetermined site. It becomes easy to install the rotating gantry 7, 8 efficiently. Furthermore, since the cyclotron 2 is installed in the lowermost layer of the building 6F, it is easy to add an irradiation device such as the rotating gantry 7, 8 or the like.

Further, in the present embodiment, since the plurality of rotating gantry 7, 8 are installed in the same layer, that is, on the ground first floor portion, this is effective when, for example, the height of the building 6F can not be taken too high.

In addition, the second branch path 16c of the guiding line 16 is secondly more than the first branch path 16b.
Adjacent to the first rotating gantry 7 while taking a long path length of the second branch path 16c because it has a detour intersection 16e that detours away from the rotating gantry 8 and intersects the first branch path 16b. It is easy to realize a configuration that can be easily connected to the second rotating gantry 8.

In addition, by adopting the configuration of the first branch path 16b and the second branch path 16c of the induction line 16 described above, all of the cyclotron (particle accelerator) and the plurality of irradiation devices are installed in the same hierarchy of the building. Even in this embodiment, the cyclotron and the plurality of irradiation devices can be efficiently installed on a predetermined site. For example, the first branch path 16b and the second branch path 16c branched from the takeout path 16a connected to the vacuum box 21 of the cyclotron 2 are arranged in the same layer, and the first branch path 16b is a first branch path. The second branch path 16 c is connected to the rotating gantry 7 and connected to the second rotating gantry 8. In this case, the second branch path 16
Since c has the detour intersection 16e, it becomes easy to secure the path length of the second branch path 16c,
Furthermore, since the second branch path 16c and the first branch path 16b intersect, compactification can be easily realized.
Seventh Embodiment

Next, a particle beam therapy facility (accelerated particle irradiation facility) 1G according to a seventh embodiment of the present invention will be described with reference to FIGS. In addition, regarding particle beam treatment equipment 1G concerning this embodiment, about the elements, members, etc. similar to particle beam treatment equipment 1A-1F concerning the 1st-6th embodiment, the same numerals are attached and detailed explanation Omit.

The building 6G according to the present embodiment is, for example, a reinforced concrete, steel-frame-concrete building, and each room is separated by a concrete radiation shielding wall. Also,
The building 6G includes a main building section 68 and a sub building section 69. The sub-building section 69 has a hierarchical structure of the third basement floor and the first floor, and each floor has a cooling device room R3, a power supply room R4, and a staff room R.
5. A radiation storage room R6, a treatment operation room R7, etc. are provided.

The main building section 68 has a hierarchical structure of the first basement floor and the first floor, and the first basement portion (bottom layer)
The cyclotron room (accelerator room) R25 installed in the
Is installed. A gantry chamber R26 and a stationary radiation chamber R27 are provided side by side on the ground first floor portion, a rotating gantry 3 is provided in the gantry chamber R26, and a stationary radiation device 12 is provided in the stationary radiation chamber R27. ing.

The gantry chamber R26 and the fixed irradiation chamber R27 are adjacent to each other with the radiation shielding wall 72 interposed therebetween.
Further, a communication passage 19 through which the guiding line 18 passes is formed adjacent to the gantry chamber R26 and the fixed irradiation chamber R27. The guiding line 18 extends in the horizontal direction in communication with the vacuum box 21 of the cyclotron 2 and is bent approximately 90 degrees upward in the vertical direction, passes through the inside of the communication passage 19 and is directed horizontally at the ground first floor portion And a first branch path 18b and a second branch path 18c which are branched in two directions from the pickup path and which are respectively communicated to the rotary gantry 3 and the stationary type irradiation device 12. And.

In the particle beam therapy system according to the present embodiment, the cyclotron, the rotating gantry and the fixed type irradiation device are respectively installed in different levels of the building, and it is possible to reduce the occupied area of the site as much as possible according to the site area. As a result, it becomes easy to install a cyclotron, a rotating gantry, and a fixed type irradiation apparatus efficiently in a predetermined site. Furthermore, since the cyclotron is installed at the lowermost layer of the building, it is easy to add an irradiation device such as a rotating gantry. Also,
In this embodiment, it is possible to use the rotating gantry and the stationary irradiation device properly, which is effective for appropriate irradiation of the proton beam to the patient.

As mentioned above, although this invention was concretely demonstrated based on the embodiment, this invention is not limited to the said embodiment. In the above embodiment, an aspect in which a plurality of rotating gantry is installed as a plurality of irradiation devices, and an aspect in which a rotating gantry and a stationary irradiation device are installed have been described, but an aspect including a plurality of stationary irradiation devices good. The particle accelerator is not limited to a cyclotron, and may be a synchrotron or a synchro cyclotron. Particle beam (accelerating particle)
Is not limited to the proton beam, but may be a carbon beam (heavy particle beam) or the like.

1A, 1B, 1C, 1D, 1E, 1F, 1G ... particle beam treatment equipment (accelerated particle irradiation equipment),
2 ... cyclotron (particle accelerator), 3, 7, 8 ... rotating gantry (rotation type irradiation device), 4
10, 13, 16, 18, induction lines 6A, 6B, 6C, 6D, 6E, 6F, 6G ...
Building 10a: Take-out path 10b, 13b, 16b, 18b: first branch path 10c,
13c, 16c, 18c: second branch path, 12: fixed type irradiation device, 12a: irradiation portion of fixed type irradiation device, 30: rotating portion, 32: irradiation portion of rotating gantry, P: rotation axis, PL: virtual Plane, r ₁ × 2 ... maximum width of the rotating gantry, L ₁ ... length in the rotation axis direction of the rotating gantry.

Claims (1)

A particle beam treatment facility that irradiates accelerated particles to a patient,
A particle accelerator that generates the accelerated particles;
A plurality of irradiation devices having an irradiation unit that irradiates the patient with acceleration particles;
An induction line for guiding the accelerated particles generated by the particle accelerator to a plurality of the irradiation devices;
The particle accelerator is installed on one floor in a multi-story building interior,
All the plurality of the irradiation device provided within said building, in said building, said a floor where the particle accelerator is installed are installed in different floors, respectively,
All of the plurality of irradiation devices provided in the building are viewed both from the first direction along the horizontal direction and from the second direction along the horizontal direction and orthogonal to the first direction , At least a portion of which is located on a straight line extending in the vertical direction from the particle accelerator,
Particle therapy equipment characterized by