Multi-chamber particle treatment room, radiation treatment system and particle accelerator moving method

Abstract

The invention belongs to the technical field of high-end medical equipment, and discloses a multi-chamber particle treatment room, a radiotherapy system and a particle accelerator moving method, the multi-chamber particle treatment room comprises a plurality of treatment rooms, and the radiotherapy system comprises the multi-chamber particle treatment room and a particle accelerator. Each treatment room is provided with a beam window, the particle accelerator can move out of different treatment rooms and is aligned with the beam window, the particle accelerator injects particle beams into the treatment rooms through the beam windows, the particle beams are subjected to radiotherapy through treatment heads in the treatment rooms, and the radiotherapy system is not provided with a dipole magnet or a quadrupole magnet. A plurality of treatment rooms share one particle accelerator, the particle accelerator is moved to the outside of the treatment room needing the particle beam, the particle beam is emitted into the treatment room through the beam window, and when the treatment room completes treatment, the particle accelerator is moved to other treatment rooms needing the particle beam and carries out treatment work, so that the overall cost of the radiotherapy system is reduced, and the treatment efficiency is improved. And the proton treatment is accessible.

Description

Technical Field

[0001] The present invention relates to the technical field of high-end medical equipment, and in particular to a multi-chamber particle therapy room, a radiotherapy system and a particle accelerator moving method. Background Art

[0002] Radiotherapy is the process of penetrating human tissue with high-energy particle beams to destroy the DNA of cancer cells and prevent them from growing and dividing, thereby achieving the purpose of treatment. Radiotherapy can provide more precise and effective treatment and reduce side effects during treatment, thereby improving the quality of life of patients. Among them, particle accelerators are the core components of radiotherapy systems, and particle accelerators are used to generate particle beams.

[0003] Radiotherapy systems usually include a particle accelerator, a set of beam transmission lines, and multiple treatment rooms. The fixed particle accelerator is used to generate particle beams, which are transported to each treatment room via the beam line to treat patients. The beam transmission line is usually composed of a vacuum pipe, a dipole magnet, and a quadrupole magnet. The vacuum pipe is used to reduce the divergence of the particle beam during transmission. At the turning position of the particle beam, a dipole magnet needs to be set to deflect the particle beam; on the beam transmission line, multiple sets of quadrupole magnets need to be arranged to provide focusing for the particle beam. On the one hand, this results in a larger beam transmission line and higher cost, which is equivalent to increasing the construction cost of the radiotherapy system. On the other hand, during the debugging stage of the radiotherapy system, it is necessary to debug each dipole magnet and quadrupole magnet along the beam transmission line, which takes a long time.

[0004] How to reduce the construction cost of radiotherapy systems is a difficult problem that needs to be solved urgently. Summary of the invention

[0005] The object of the present invention is to provide a multi-chamber particle therapy room, a radiotherapy system and a particle accelerator moving method, so as to reduce construction costs.

[0006] The purpose of the present invention is achieved by the following technical solutions:

[0007] A multi-chamber particle therapy room, comprising:

[0008] A plurality of treatment rooms, each of which is provided with an entrance and a beam window corresponding to a beam output end of a particle accelerator outside the treatment room, wherein the beam window and the entrance are arranged on different sides of the treatment room;

[0009] The treatment room is not provided with a particle accelerator, the treatment room is not provided with a scanning magnet, a dipole magnet or a quadrupole magnet, the treatment room is provided with a treatment head corresponding to the beam window, the treatment room has an isocenter, the beam window is configured to be closed and opened at different times, and the beam window is configured to be opened when the beam output end of the particle accelerator moves to correspond to the beam window;

[0010] The treatment room comprises a front wall, a rear wall, a left wall and a right wall, the entrance is arranged between the front wall and the left wall, the beam window and the entrance are separated by a partition wall, the partition wall is connected to the left wall, the partition wall and the right wall are separated by a certain distance to form an opening for the patient to pass through, the beam window is opened through the rear wall, and the treatment head is installed on the inner side of the rear wall; along the direction of the beam passing through the beam window, the projection of the isocenter on the partition wall is located within the projection of the beam window on the partition wall;

[0011] The treatment room further comprises a supporting device, which is used for carrying a patient and moving the patient to an isocenter so that the beam irradiates the patient along a predetermined direction.

[0012] Preferably, the treatment head is configured to be retractable along the penetrating direction of the beam window.

[0013] Preferably, the treatment head is mounted and fixed on the rear wall, the treatment room has no rotating frame, and the beam output direction of the treatment head is fixed.

[0014] A radiation therapy system comprising:

[0015] A multi-chamber particle therapy chamber as described in any one of the above;

[0016] A particle accelerator, the particle accelerator is used to generate a particle beam, the particle accelerator is a single unit, can be moved outside different treatment rooms and aligned with the beam window, the particle accelerator injects the particle beam into the treatment room through the beam window, the particle beam is used for radiotherapy through a treatment head in the treatment room, and the radiotherapy system is not provided with a dipole magnet or a quadrupole magnet.

[0017] Preferably, it also includes a carrier platform, a driving component and a control component, the control component includes a controller, the controller is used to control the driving component, the particle accelerator is arranged on the carrier platform, the driving component is used to drive the carrier platform to move, the carrier platform is used to drive the particle accelerator to move, and the movement mode of the particle accelerator includes: one or more of: translation in the horizontal direction, translation in the vertical direction, rotation in the horizontal direction, and rotation in the vertical direction.

[0018] Preferably, the driving assembly comprises a translation driving mechanism, and the translation driving mechanism is used to drive the carrier to translate so as to translate the particle accelerator to different treatment rooms; and / or,

[0019] The driving assembly further comprises a rotation driving mechanism, and the rotation driving mechanism is used for driving the supporting platform to rotate so as to rotate the particle accelerator to different locations outside the treatment room.

[0020] Preferably, the control component further comprises a first position sensor, the first position sensor is connected to the translation drive mechanism and / or the rotation drive mechanism, and the first position sensor is used to detect the rotational movement of the translation drive mechanism and / or the rotation drive mechanism to obtain the position information of the carrier platform; and / or,

[0021] The control component further includes a second position sensor, which is connected to the carrier platform or the particle accelerator, and is used to detect position information of the carrier platform or the particle accelerator.

[0022] Preferably, the driving assembly further includes an adjusting device, which is disposed on the supporting platform, and includes an X-direction driving mechanism, a Y-direction driving mechanism, and a Z-direction driving mechanism, wherein the X-direction driving mechanism is used to drive the particle accelerator to translate along the X-axis and / or to drive the particle accelerator to rotate around the X-axis, the Y-direction driving mechanism is used to drive the particle accelerator to translate along the Y-axis and / or to drive the particle accelerator to rotate around the Y-axis, and the Z-direction driving mechanism is used to drive the particle accelerator to translate along the Z-axis and / or to drive the particle accelerator to rotate around the Z-axis, and the X direction, the Y direction, and the Z direction are perpendicular to each other.

[0023] Preferably, the control component further comprises a third position sensor, wherein the third position sensor is connected to the particle accelerator and is used to detect position information of the particle accelerator.

[0024] Preferably, a shielding door is provided on the treatment room, the shielding door is used to close or open the beam window, and the shielding door and the isocenter are respectively located on both sides of the beam window; and / or,

[0025] A shielding door is arranged on the supporting platform, and the shielding door can move with the supporting platform. When the particle accelerator moves to the beam window of one of the treatment rooms, the shielding door is used to close the beam windows of other treatment rooms.

[0026] Preferably, it further comprises a track, the particle accelerator is arranged on the track, the particle accelerator moves to different outsides of the treatment room via the track, and the extension direction of the track is parallel to the extension direction of the center line of the beam windows.

[0027] Preferably, a limit device for aligning with the beam window along the front-to-back direction is provided on the moving path of the particle accelerator, and the limit device is used to mark the moving position of the particle accelerator. A scanning magnet is installed on the particle accelerator, and the particle accelerator moves in a radiation shielded space.

[0028] A particle accelerator moving method, the particle accelerator moving method is used to move a particle accelerator of a radiotherapy system as described in any one of the above, comprising the following steps:

[0029] The particle accelerator is moved outside a first treatment room where a particle beam is needed, the particle accelerator is docked with a beam window of the first treatment room, and after the beam window is opened, the particle accelerator starts to emit a beam and injects the particle beam into the first treatment room through the beam window, and the particle beam is used for radiotherapy through a treatment head in the first treatment room;

[0030] When the first treatment room completes the radiotherapy, the particle accelerator stops emitting beams, then moves to the outside of the second treatment room where the particle beam is needed and docks with the beam window of the second treatment room, and then starts emitting beams.

[0031] Preferably, the method of moving the particle accelerator outside the treatment room where the particle beam is required comprises:

[0032] Translationally moving to the treatment room where the particle beam is needed by the translation driving mechanism; and / or,

[0033] Rotating the particle accelerator to a position outside the treatment room where a particle beam is required by the rotation drive mechanism; and / or,

[0034] The position of the particle accelerator is precisely adjusted in six degrees of freedom by the X-direction driving mechanism, the Y-direction driving mechanism and the Z-direction driving mechanism of the adjusting device, so that the particle accelerator is precisely aligned with the beam window of the treatment room.

[0035] Compared with the prior art, the beneficial effects of the present invention include at least:

[0036] The multi-chamber particle therapy room, radiotherapy system and particle accelerator moving method of the present invention, multiple treatment rooms share a movable particle accelerator, and the overall space utilization is more efficient. By moving the particle accelerator outside the treatment room that needs a particle beam, the particle accelerator injects the particle beam into the treatment room through the beam window, and the particle beam is used for radiotherapy through the treatment head in the treatment room. Other treatment rooms can simultaneously carry out the treatment preparation process that does not require a particle beam. When the treatment in the treatment room is completed, the particle accelerator is moved to the outside of other treatment rooms that need a particle beam and allows other treatment rooms that need a particle beam to carry out treatment work. Since the particle accelerator can be moved outside the treatment room that needs a particle beam, the utilization rate of the particle accelerator is improved, which is conducive to improving the efficiency of radiotherapy and benefiting more patients. The radiotherapy system of the present application does not need to set a beam transmission line. On the one hand, it reduces the overall size of the radiotherapy system and reduces the overall cost of the radiotherapy system. On the other hand, it does not need to debug the beam transmission line, which reduces the difficulty of debugging the radiotherapy system, shortens the debugging time of the radiotherapy system, and further reduces the overall cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the three-dimensional structure of a radiotherapy system according to an embodiment of the present invention.

[0038] Figure 2 It is a schematic diagram of the planar structure of a radiotherapy system according to an embodiment of the present invention.

[0039] Figure 3 yes Figure 1 A partial enlarged view of point A in the middle.

[0040] Figure 4 It is a schematic diagram of the three-dimensional structure of another radiotherapy system according to an embodiment of the present invention.

[0041] Figure 5 It is a schematic diagram of the planar structure of another radiotherapy system according to an embodiment of the present invention.

[0042] Figure 6 It is a schematic diagram of the three-dimensional structure of yet another radiotherapy system according to an embodiment of the present invention.

[0043] Figure 7 It is a schematic diagram of the planar structure of yet another radiotherapy system according to an embodiment of the present invention.

[0044] Figure 8 It is a schematic diagram of the planar structure when the shielding door in an embodiment of the present invention is arranged on a bearing platform.

[0045] Fig. 9 It is a schematic flow chart of the particle accelerator moving method according to an embodiment of the present application.

[0046] In the figure: 100, radiotherapy system; 1, treatment room; 10, entrance; 11, beam window; 12, front wall; 13, rear wall; 14, left wall; 15, right wall; 16, partition wall; 17, opening; 18, isocenter; 2, particle accelerator; 21, beam outlet; 22, particle beam; 3, carrier platform; 4, drive assembly; 41, translation drive mechanism; 42, rotation drive mechanism; 43, adjustment device; 5, control assembly; 51, controller; 6, track; 7, limit device; 8, shielding door; 9, treatment head. DETAILED DESCRIPTION

[0047] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete and to fully convey the concepts of example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0048] The words expressing positions and directions described in the present invention are all explained with reference to the accompanying drawings as examples, but they can be changed as needed, and all such changes are included in the protection scope of the present invention.

[0049] Reference Figures 1 to 8 The present invention provides a radiotherapy system 100, comprising: a multi-chamber particle therapy room and a particle accelerator 2, wherein the multi-chamber particle therapy room comprises: a plurality of therapy rooms 1, each therapy room 1 is provided with an entrance 10 for a patient to enter and a beam window 11 corresponding to a beam outlet 21 of the particle accelerator 2 outside the therapy room 1, and the beam window 11 and the entrance 10 are arranged on different sides of the therapy room 1. The therapy room 1 is not provided with a particle accelerator 2, nor is the therapy room 1 provided with a scanning magnet, a dipole magnet or a quadrupole magnet, thereby optimizing the layout of the therapy room 1 and reducing the cost of the radiotherapy system 100. The therapy room 1 is provided with a therapy head 9 corresponding to the beam window 11, the therapy head 9 is fixed or arranged to be retractable relative to the patient, the therapy room 1 has an isocenter 18, the beam window 11 is arranged to be closed and opened at different times, and the beam window 11 is arranged to be opened when the beam outlet 21 of the particle accelerator 2 moves to correspond to the beam window 11, that is, the beam window 11 is opened only when the beam is required to pass through the beam window 11.

[0050] The treatment room 1 may include a front wall 12, a rear wall 13, a left wall 14, and a right wall 15. The entrance 10 is arranged between the front wall 12 and the left wall 14. The beam window 11 and the entrance 10 are separated by a partition wall 16, that is, the beam window 11 and the entrance 10 are blocked by the partition wall 16. The partition wall 16 is connected to the left wall 14. The partition wall 16 and the right wall 15 are separated by a certain distance to form an opening 17 for the patient to pass through. The beam window 11 is opened through the rear wall 13. Along the direction of the beam passing through the beam window 11, the projection of the isocenter 18 on the partition wall 16 is located within the projection of the beam window 11 on the partition wall 16, so that the structure of the treatment room 1 is more compact, and at the same time, the movement path of the beam is optimized, the time of beam transmission is saved, and the improvement of treatment efficiency is further guaranteed. Along the direction of the beam passing through the beam window 11, the inlet 10 and the opening 17 are preferably located on both sides of the beam window 11 and the treatment head 9, respectively. This can make the structure of the treatment room 1 compact, reduce the overall size of the treatment room 1, and is conducive to the development of miniaturization.

[0051] The particle accelerator 2 can provide a particle beam 22 for the treatment room 1, and multiple treatment rooms 1 share one particle accelerator 2, thereby reducing the cost of the radiotherapy system 100. That is, the radiotherapy system 100 can include multiple treatment rooms 1 and one particle accelerator 2, or can include multiple treatment rooms 1 and multiple particle accelerators 2, wherein the number of treatment rooms 1 is greater than the number of particle accelerators 2.

[0052] Specifically, each treatment room 1 is provided with a beam window 11, which is used for allowing the particle beam 22 generated by the particle accelerator 2 to pass through so that the particle beam 22 can reach the patient's treatment area in the treatment room 1. The beam window 11 is arranged on the side of the treatment room 1 facing the particle accelerator 2. The shape of the beam window 11 is, for example, a rectangle, but it can also be other shapes as long as it can ensure that the particle beam 22 generated by the particle accelerator 2 passes through. Figure 2As shown, various treatment heads 9 and support devices (not shown) can also be set in each treatment room 1. The treatment room 1 is not provided with a particle accelerator 2, nor is it provided with a rotating frame, which simplifies the structure of the treatment room 1. The treatment head 9 is used to treat the patient. The treatment head 9 can cooperate with the particle beam 22 generated by the particle accelerator 2 for radiotherapy, that is, the patient is treated only after the particle beam 22 passes through the treatment head 9. The treatment head 9 can be set to be retractable along the through direction of the beam window 11, so that more accurate and effective treatment can be achieved, while improving the patient's treatment experience and safety. In this embodiment, the treatment head 9 can be installed and fixed on the inner side of the rear wall 13 and extend into the treatment room 1. The treatment room 1 does not have a rotating frame, and the beam output direction of the treatment head 9 is fixed. The support device is used to support the patient and drive the patient to move along various angles, that is, the support device is used to carry the patient and move the patient to the isocenter 18 so that the beam irradiates the patient along a predetermined direction. The support device is, for example, a treatment chair, a treatment bed, etc.

[0053] The particle accelerator 2 is used to generate a particle beam 22. The particle accelerator 2 can be moved outside different treatment rooms 1 and aligned with the beam window 11. The particle accelerator 2 injects the particle beam 22 into the treatment room 1 through the beam window 11. The particle beam 22 is used for radiotherapy through the treatment head 9 in the treatment room 1. In some embodiments, after the particle beam, i.e., the beam current, is drawn out from the particle accelerator 2, the radiotherapy system 100 and its particle accelerator 2 are not provided with a beam transmission line on the path where the beam current moves, and are not provided with a vacuum pipe, a dipole magnet or a quadrupole magnet, which simplifies the overall design, reduces the cost, avoids the energy consumption generated by the beam transmission line, is more low-carbon, and conforms to the trend of technological development. The particles can be protons or heavy ions. The particle accelerator 2 is, for example, a proton accelerator, which can generate a proton beam. Of course, the particle accelerator 2 can also be other types of particle accelerators, which can be set according to actual needs. The moving direction of the particle accelerator 2 is not parallel to the beam output direction of the treatment head 9 (the direction in which the particle beam 22 flows out of the treatment head 9 ). Thus, the radiotherapy system 100 has a compact structure, which reduces the overall size of the radiotherapy system 100 and is conducive to the development of miniaturization.

[0054] As a preferred method, refer to Figures 1 to 5 The radiotherapy system 100 may further include a track 6, which is disposed outside the treatment room 1. The particle accelerator 2 is disposed on the track 6 and is located together in the radiation shielding space. The particle accelerator 2 moves to different treatment rooms 1 through the track 6. The extension direction of the track 6 is preferably parallel to the extension direction of the center line of the beam window 11. The distribution of the track 6 corresponds to the distribution of the plurality of treatment rooms 1. The particle accelerator 2 can be moved along the track 6 to different treatment rooms 1, so that the particle accelerator 2 can be moved along the predetermined path. The track 6 is further preferably a slide rail, so that the particle accelerator 2 moves more smoothly and stably, which is convenient for personnel to operate, and avoids or reduces the fatigue of personnel operation.

[0055] In the present application, multiple treatment rooms 1 share one particle accelerator 2, which reduces the number of particle accelerators 2 required and greatly reduces the construction cost of the radiotherapy system 100. By moving the particle accelerator 2 outside the treatment room 1 that needs the particle beam 22, the particle accelerator 2 injects the particle beam 22 into the treatment room 1 through the beam window 11, and the particle beam 22 performs radiotherapy through the treatment head 9 in the treatment room 1, and other treatment rooms 1 can simultaneously perform treatment preparation processes that do not require the particle beam 22, such as patient positioning. When the treatment in the treatment room 1 is completed, the particle accelerator 2 moves to other treatment rooms 1 that need the particle beam 22 and performs treatment work, which reduces the waiting time of the particle accelerator 2, improves the use efficiency of the particle accelerator 2, improves the treatment efficiency, and is conducive to treating more patients. Since the particle accelerator 2 can be moved to the treatment room 1 that requires the particle beam 22, the radiotherapy system 100 of the present application does not need to be equipped with a beam transmission line. On the one hand, the overall size of the radiotherapy system 100 is reduced, the cost of the beam transmission line is saved, and the overall cost of the radiotherapy system 100 is reduced. On the other hand, there is no need to debug the beam transmission line, which reduces the difficulty of debugging the radiotherapy system 100, shortens the debugging time of the radiotherapy system 100 and the construction period of the radiotherapy system 100, and is conducive to the radiotherapy system 100 being put into use as soon as possible to benefit patients.

[0056] In a specific embodiment, the movement mode of the particle accelerator 2 includes: one or more of translation in the horizontal direction, translation in the vertical direction, rotation in the horizontal direction, and rotation in the vertical direction. In some embodiments, the movement mode of the particle accelerator 2 can also be flipping. The movement mode of the particle accelerator 2 corresponds to the distribution position of the treatment room 1, that is, the movement path of the particle accelerator 2 depends on the distribution position of the treatment room 1, or in other words, the movement path of the particle accelerator 2 determines the distribution position of the treatment room 1. The arrangement and distribution of multiple treatment rooms 1 can be set according to actual needs, and the position where the particle accelerator 2 is set corresponds to the arrangement and distribution of the treatment room 1, as long as the particle accelerator 2 can be moved outside the treatment room 1 and aligned with the beam window 11.

[0057] As an example, see Figure 1 , Figure 2, multiple treatment rooms 1 are arranged in a single row on a horizontal plane, and the particle accelerator 2 is located on the same side of the multiple treatment rooms 1. The particle accelerator 2 can be translated in the horizontal direction to move outside different treatment rooms 1 and align with the beam window 11. That is, when one of the treatment rooms 1 needs the particle accelerator 2, the particle accelerator 2 can be translated in the horizontal direction to the outside of the treatment room 1 that needs the particle accelerator 2, and the particle accelerator 2 injects the particle beam 22 into the treatment room 1 through the beam window 11. The particle beam 22 performs radiotherapy through the treatment head 9 in the treatment room 1, and other treatment rooms 1 can perform treatment preparation processes that do not require the particle beam 22, such as patient positioning.

[0058] Reference Figure 4 , Figure 5 , multiple treatment rooms 1 are arranged in a single row in the vertical direction, that is, multiple treatment rooms 1 are stacked, and the particle accelerator 2 is located on the same side of the multiple treatment rooms 1. The particle accelerator 2 can be translated in the vertical direction to move to the outside of different treatment rooms 1 and align with the beam window 11. In other words, when one of the treatment rooms 1 needs the particle accelerator 2, the particle accelerator 2 can be translated in the vertical direction to the outside of the treatment room 1 that needs the particle accelerator 2, and the particle accelerator 2 injects the particle beam 22 into the treatment room 1 through the beam window 11. The particle beam 22 performs radiotherapy through the treatment head 9 in the treatment room 1, and other treatment rooms 1 can perform treatment preparation processes that do not require the particle beam 22, such as patient positioning.

[0059] Two treatment rooms 1 are arranged on both sides of the particle accelerator 2 on a horizontal plane, or, referring to Figure 6 , Figure 7 , Figure 8 , multiple treatment rooms 1 are arranged around the particle accelerator 2 on a horizontal plane, and the particle accelerator 2 can be rotated in the horizontal direction to move outside different treatment rooms 1 and align with the beam window 11. That is, when one of the treatment rooms 1 needs the particle accelerator 2, the particle accelerator 2 can be rotated in the horizontal direction to the outside of the treatment room 1 that needs the particle accelerator 2, and the particle accelerator 2 injects the particle beam 22 into the treatment room 1 through the beam window 11, and the particle beam 22 performs radiotherapy through the treatment head 9 in the treatment room 1, and other treatment rooms 1 can perform treatment preparation processes that do not require the particle beam 22, such as patient positioning.

[0060] A plurality of treatment rooms 1 are respectively arranged on both sides of the particle accelerator 2 on a horizontal plane, and the particle accelerator 2 can rotate and translate in the horizontal direction to move outside different treatment rooms 1 and align with the beam window 11. That is, when one of the treatment rooms 1 needs the particle accelerator 2, the particle accelerator 2 can rotate in the horizontal direction and / or translate in the horizontal direction to the outside of the treatment room 1 that needs the particle accelerator 2, and the particle accelerator 2 injects the particle beam 22 into the treatment room 1 through the beam window 11, and the particle beam 22 performs radiotherapy through the treatment head 9 in the treatment room 1, and other treatment rooms 1 can perform treatment preparation processes that do not require the particle beam 22, such as patient positioning.

[0061] Two treatment rooms 1 are respectively arranged on both sides of the particle accelerator 2 in the vertical direction, or a plurality of treatment rooms 1 are arranged around the particle accelerator 2 in the vertical direction, and the particle accelerator 2 can be rotated in the vertical direction to move outside different treatment rooms 1 and align with the beam window 11. That is, when one of the treatment rooms 1 needs the particle accelerator 2, the particle accelerator 2 can be rotated in the vertical direction to the outside of the treatment room 1 that needs the particle accelerator 2, and the particle accelerator 2 injects the particle beam 22 into the treatment room 1 through the beam window 11, and the particle beam 22 performs radiotherapy through the treatment head 9 in the treatment room 1, and other treatment rooms 1 can perform treatment preparation processes that do not require the particle beam 22, such as patient positioning.

[0062] A plurality of treatment rooms 1 are respectively arranged on both sides of the particle accelerator 2 in the vertical direction, and the particle accelerator 2 can be rotated and translated in the vertical direction to move outside different treatment rooms 1 and align with the beam window 11. That is, when one of the treatment rooms 1 needs the particle accelerator 2, the particle accelerator 2 can be rotated and / or translated in the vertical direction to the outside of the treatment room 1 that needs the particle accelerator 2, and the particle accelerator 2 injects the particle beam 22 into the treatment room 1 through the beam window 11, and the particle beam 22 performs radiotherapy through the treatment head 9 in the treatment room 1, and other treatment rooms 1 can perform treatment preparation processes that do not require the particle beam 22, such as patient positioning.

[0063] As a preferred method, refer to Figures 1 to 8 The radiotherapy system 100 may further include a carrier 3, a driving component 4 and a control component 5. Figure 1 , Figure 2The control component 5 includes a controller 51. The drive component 4 and the controller 51 can be connected by a wire, and the drive component 4 and the controller 51 can be wirelessly connected. The controller 51 is used to control the drive component 4. The particle accelerator 2 is arranged on the carrier 3. The drive component 4 is used to drive the carrier 3 to move, and the carrier 3 is used to drive the particle accelerator 2 to move. In this embodiment, the carrier 3 can be arranged on a track 6, and the drive component 4 can drive the carrier 3 to move along the track 6 and drive the particle accelerator 2 to move. The drive component 4 can be one or more of various power devices such as pneumatic, electric, and hydraulic. By driving the particle accelerator 2 to move through the drive component 4, the particle accelerator 2 is automatically operated, which can not only improve the moving accuracy and moving efficiency of the particle accelerator 2, thereby improving the use efficiency of the particle accelerator 2 and improving the treatment effect, but also does not require personnel to manually move the particle accelerator 2, which reduces the labor intensity of personnel, and can also keep personnel away from the particle accelerator 2 to avoid the harm of electromagnetic radiation.

[0064] Specifically, refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 The driving assembly 4 may include a translation driving mechanism 41, which is used to drive the carrier 3 to translate, so that the particle accelerator 2 is translated to different treatment rooms 1. That is, the translation driving mechanism 41 can drive the carrier 3 to translate in the horizontal direction or in the vertical direction, and then the carrier 3 drives the particle accelerator 2 to translate in the horizontal direction or in the vertical direction. The translation driving mechanism 41 can be a driving motor, and the translation driving mechanism 41 can drive the carrier 3 to move along the track 6 and drive the particle accelerator 2 to move, so that the particle accelerator 2 is translated to different treatment rooms 1 and aligned with the beam window 11, and the particle accelerator 2 injects the particle beam 22 into the treatment room 1 through the beam window 11, and the particle beam 22 is subjected to radiotherapy through the treatment head 9 in the treatment room 1.

[0065] Reference Figure 7 , Figure 8The driving assembly 4 may further include a rotation driving mechanism 42, which is used to drive the carrier 3 to rotate so that the particle accelerator 2 rotates to different treatment rooms 1. That is, the rotation driving mechanism 42 can drive the carrier 3 to rotate in the horizontal direction or in the vertical direction, and then the carrier 3 drives the particle accelerator 2 to rotate in the horizontal direction or in the vertical direction. In some embodiments, the rotation driving mechanism 42 can drive the carrier 3 to flip, and then the carrier 3 drives the particle accelerator 2 to flip. The rotation driving mechanism 42 can also be a driving motor, and the rotation driving mechanism 42 can drive the carrier 3 to rotate and drive the particle accelerator 2 to rotate, so that the particle accelerator 2 rotates to different treatment rooms 1 and aligns with the beam window 11, and the particle accelerator 2 injects the particle beam 22 into the treatment room 1 through the beam window 11, and the particle beam 22 performs radiotherapy through the treatment head 9 in the treatment room 1.

[0066] As a preferred embodiment, the control component 5 may further include a first position sensor (not shown), which is connected to the translation drive mechanism 41 and / or the rotation drive mechanism 42. The first position sensor may also be connected to the controller 51, and the first position sensor is used to detect the rotational movement of the translation drive mechanism 41 and / or the rotation drive mechanism 42 to obtain the position information of the carrier 3. The first position sensor is, for example, a rotary encoder. When the first position sensor can be coupled to the translation drive mechanism 41, the first position sensor can detect the number of rotations and the rotation direction of the translation drive mechanism 41, that is, the distance moved by the carrier 3 can be obtained by calculation to obtain the real-time position information of the carrier 3, and then the real-time position information of the particle accelerator 2 can be obtained. By comparing the real-time position information of the particle accelerator 2 with the preset position information of the particle accelerator 2, it can be determined whether the particle accelerator 2 is aligned with the beam window 11.

[0067] When the first position sensor can be coupled to the rotation drive mechanism 42, the first position sensor can detect information such as the number of rotations and the rotation direction of the rotation drive mechanism 42, that is, the rotation angle of the carrier 3 can be obtained by calculation to obtain the real-time position information of the carrier 3, and then obtain the real-time position information of the particle accelerator 2. By comparing the real-time position information of the particle accelerator 2 with the preset position information of the particle accelerator 2, it can be determined whether the particle accelerator 2 is aligned with the beam window 11.

[0068] The first position sensor can feed back the position information of the particle accelerator 2 to the controller 51. The controller 51 controls the rotation of the translation drive mechanism 41 and / or the rotation drive mechanism 42 according to the feedback information of the first position sensor, so that the position of the particle accelerator 2 can be accurately controlled to ensure that the particle accelerator 2 is aligned with the beam window 11.

[0069] The control component 5 may also include a second position sensor (not shown), which is connected to the carrier platform 3 or the particle accelerator 2. The second position sensor may also be connected to the controller 51. The second position sensor is used to detect the real-time position information of the carrier platform 3 or the particle accelerator 2. By comparing the real-time position information of the particle accelerator 2 with the preset position information of the particle accelerator 2, it can be determined whether the particle accelerator 2 is aligned with the beam window 11.

[0070] The controller 51 controls the rotation of the translation drive mechanism 41 and / or the rotation drive mechanism 42 according to the feedback information of the second position sensor, so that the position of the particle accelerator 2 can be further accurately controlled. The second position sensor can be a sliding rheostat, a tensile displacement sensor, etc. In the present embodiment, the second position sensor is a sliding rheostat. The second position sensor can be arranged on the moving path of the carrier 3 or the particle accelerator 2. For example, the second position sensor is preferably arranged on the track 6. The carrier 3 or the particle accelerator 2 is provided with a contact portion (not shown) connected to the second position sensor. The number of the contact portions can be one or more. The second position sensor obtains the position information of the carrier 3 or the particle accelerator 2 by obtaining the position of the contact portion on the second position sensor, that is, the second position sensor can obtain the real-time position information of the particle accelerator 2 to ensure that the particle accelerator 2 is aligned with the beam window 11.

[0071] The first position sensor and the second position sensor are preferably independent of each other, that is, the first position sensor and the second position sensor will not interfere with each other. In this way, the support platform 3 has two or more independent position feedback devices, which further ensures the accuracy of the position of the support platform 3, that is, ensures the accuracy of the position of the particle accelerator 2, thereby ensuring that the particle accelerator 2 can be aligned with the beam window 11, and further ensures that the particle beam 22 can be accurately injected into the treatment room 1.

[0072] In some embodiments, reference Figure 1 , Figure 2 , Figure 5, a limiting device 7 for aligning with the beam window 11 along the front-back direction may be provided on the moving path of the particle accelerator 2, for example, the limiting device 7 may be provided on the track 6, and the limiting device 7 is used to mark the moving position of the particle accelerator 2. A scanning magnet is installed on the particle accelerator 2, and the movement of the particle accelerator 2 is in a radiation shielding space, which can prevent people from being harmed by radiation. The limiting device 7 may be a component that prevents the particle accelerator 2 or the carrier 3 from continuing to move, that is, the limiting device 7 is a hard limiting component, such as a limiting block. The limiting device 7 may also be a sensor, such as a Hall switch, a proximity switch, etc., and the limiting device 7 may be connected to the controller 51. When the particle accelerator 2 or the carrier 3 moves to the limiting device 7, the limiting device 7 may feed back the position information of the particle accelerator 2 or the carrier 3 to the controller 51, and the controller 51 controls the drive component 4 according to the feedback information of the limiting device 7 to stop the drive component 4.

[0073] As a preferred method, refer to Figures 1 to 8 The driving assembly 4 may further include an adjusting device 43, which is disposed on the carrier 3. Specifically, the adjusting device 43 is disposed between the carrier 3 and the particle accelerator 2. The adjusting device 43 is used to fine-tune the particle accelerator 2, that is, the adjusting device 43 is used to fine-tune the particle accelerator 2 to make the position of the particle accelerator 2 more accurate. The adjusting device 43 may include an X-direction driving mechanism (not shown), a Y-direction driving mechanism (not shown), and a Z-direction driving mechanism (not shown). The X-direction driving mechanism, the Y-direction driving mechanism, and the Z-direction driving mechanism, for example, respectively include motors. The X-direction driving mechanism can drive the particle accelerator 2 to translate along the X-axis, and the X-direction driving mechanism can also drive the particle accelerator 2 to rotate around the X-axis. The Y-direction driving mechanism can drive the particle accelerator 2 to translate along the Y-axis, and the Y-direction driving mechanism can also drive the particle accelerator 2 to rotate around the Y-axis. The Z-direction driving mechanism can drive the particle accelerator 2 to translate along the Z-axis, and the Z-direction driving mechanism can also drive the particle accelerator 2 to rotate around the Z-axis. The X-direction, the Y-direction, and the Z-direction are perpendicular to each other. By setting up an X-direction driving mechanism, a Y-direction driving mechanism and a Z-direction driving mechanism, the adjustment device 43 can accurately adjust the position of the particle accelerator 2 in six degrees of freedom, so that the particle accelerator 2 can be accurately aligned with the beam windows 11 of different treatment rooms 1, thereby ensuring that the particle beam 22 can be accurately injected into the treatment room 1.

[0074] The control assembly 5 may further include a third position sensor (not shown), which is connected to the particle accelerator 2. The third position sensor may also be connected to the controller 51. The third position sensor is used to detect the real-time position information of the particle accelerator 2. By comparing the real-time position information of the particle accelerator 2 with the preset position information of the particle accelerator 2, it can be determined whether the particle accelerator 2 is aligned with the beam window 11. The controller 51 controls the operation of the adjustment device 43 according to the feedback information of the third position sensor, so that the position of the particle accelerator 2 can be further accurately controlled.

[0075] In a specific embodiment, referring to Figure 1 , Figure 4 , Figure 6 , a shielding door 8 may be provided on the treatment room 1. More preferably, each treatment room 1 is provided with a shielding door 8. The shielding door 8 is used to close or open the beam window 11. The shielding door 8 and the isocenter 18 are preferably located on both sides of the beam window 11. The particle accelerator 2 generates radiation when it is working, and the radiation can also have an effect on the human body. The shielding door 8 can allow the radiation generated by the particle accelerator 2 to enter the treatment room 1, thereby preventing the personnel in the treatment room 1 from unnecessary radiation exposure. The closing or opening of the shielding door 8 is associated with the position of the particle accelerator 2. Specifically, when the particle accelerator 2 moves to the outside of the treatment room 1 where the particle beam 22 is needed, the shielding door 8 of the treatment room 1 is opened, and the particle beam 22 enters the treatment room 1 through the beam window 11. The particle beam 22 performs radiotherapy through the treatment head 9 in the treatment room 1. The shielding doors 8 of other treatment rooms 1 are in a closed state at this time, so that the radiation generated by the particle accelerator 2 can be prevented from entering other treatment rooms 1. When the particle accelerator 2 is moved away from a treatment room 1, the shielding door 8 of the treatment room 1 can be closed.

[0076] In some embodiments, reference Figure 8 , a shielding door 8 may also be provided on the carrier 3, and the number of the shielding door 8 may be one or more, and the shielding door 8 can move with the carrier 3, that is, the shielding door 8 moves synchronously with the particle accelerator 2, for example, the shielding door 8 translates and rotates with the carrier 3. Specifically, when the particle accelerator 2 moves to the beam window 11 of one of the treatment rooms 1, the shielding door 8 moves to the beam windows 11 of other treatment rooms 1 at the same time, and the shielding door 8 can close the beam windows 11 of other treatment rooms 1. When the particle accelerator 2 moves from the beam window 11 of one of the treatment rooms 1 to the beam window 11 of another treatment room 1, the shielding door 8 moves to the beam windows 11 of other treatment rooms 1 at the same time, and the shielding door 8 can close the beam windows 11 of other treatment rooms 1. In this way, the radiation generated by the particle accelerator 2 can also be prevented from entering the treatment room 1 that does not need the particle beam 22.

[0077] The radiotherapy system 100 may include a particle beam transmission system for transmitting the particle beam 22 from the particle accelerator 2 to the patient's body. The particle beam transmission system accurately transmits the particle beam 22 to the treatment position through magnetic field control to ensure the accurate positioning and transmission of the particle beam 22. The particle beam transmission system may include components passed through during the particle beam transmission process, such as scanning magnets, ionization chambers, adaptive gratings, etc. The scanning magnet allows the particle beam 22 to move in the X direction and / or the Y direction by appropriately changing the magnetic field, and the X direction and the Y direction are perpendicular to each other. The ionization chamber can be used to measure the dose size and / or position of the beam. The adaptive grating can also form an adaptive aperture, which can be adaptively adjusted according to the shape and size of the target area, so that the shape and size of the particle beam 22 can match the morphology of the tumor. The advantage of this adaptive irradiation is that it can better adapt to irregularly shaped tumors and improve the personalization and pertinence of the irradiation plan. The combination of components such as a scanning magnet, an ionization chamber, a range adjuster (also called a range adjuster or Range shifter) and an adaptive grating can provide patients with accurate and flexible radiotherapy. The scanning magnet can be installed on the particle accelerator 2 and located outside the treatment room 1. The ionization chamber can be installed on the treatment head 9. The range adjuster and the adaptive grating can be set as part of the treatment head 9. Such a setting can meet the demand for further miniaturization of the treatment room 1, making the treatment room 1 more compact and suitable for more usage scenarios.

[0078] Reference Fig. 9 The present invention also provides a particle accelerator moving method, which is used to move the particle accelerator 2 of the radiotherapy system 100 as described in any one of the above, and includes the following steps: S100-S200.

[0079] Step S100: Move the particle accelerator 2 outside the first treatment room where the particle beam 22 is needed, dock the particle accelerator 2 with the beam window 11 of the first treatment room, and after the beam window 11 is opened, the particle accelerator 2 starts to emit beams and injects the particle beam 22 into the first treatment room through the beam window 11. The particle beam 22 is used for radiotherapy through the treatment head 9 in the first treatment room.

[0080] Specifically, the controller 51 controls the driving assembly 4 to move the particle accelerator 2 to the outside of the first treatment room where the particle beam 22 is needed, and aligns the beam outlet end 21 of the particle accelerator 2 with the beam window 11 of the first treatment room. After the beam window 11 is opened, the particle accelerator 2 starts to emit beams and injects the particle beam 22 (also called beam flow) into the treatment room 1 through the beam window 11. The particle beam 22 is subjected to radiotherapy through the treatment head 9 in the first treatment room, that is, the particle beam 22 can reach the patient's part to be treated in the first treatment room after passing through the treatment head 9 in the first treatment room. Other treatment rooms 1 can perform treatment preparation processes that do not require the particle beam 22, such as patient positioning. The treatment head 9 can be extended or retracted, i.e., telescoped, in a direction close to or away from the isocenter 18.

[0081] Step S200: When the radiotherapy in the first treatment room is completed, the particle accelerator 2 stops emitting beams, and then moves to the outside of the second treatment room where the particle beam 22 is needed and docks with the beam window 11 of the second treatment room, and then starts emitting beams.

[0082] Specifically, after the radiotherapy is completed in the first treatment room, the particle accelerator 2 stops emitting beams, and the controller 51 controls the driving assembly 4 to move the particle accelerator 2 outside the second treatment room where the particle beam 22 is needed, and aligns the beam-emitting end 21 of the particle accelerator 2 with the beam window 11 of the second treatment room, and the particle accelerator 2 starts emitting beams again, and the particle accelerator 2 injects the particle beam 22 into the second treatment room through the beam window 11, and the particle beam 22 is subjected to radiotherapy through the treatment head 9 in the second treatment room, that is, the particle beam 22 can reach the part of the patient to be treated in the treatment room 1. The treatment head 9 can be extended or retracted, that is, telescopic, in the direction close to or away from the isocenter 18.

[0083] In a specific embodiment, moving the particle accelerator 2 outside the treatment room 1 where the particle beam 22 is required can be achieved by the following method.

[0084] The particle accelerator 2 can be translated to the outside of the treatment room 1 where the particle beam 22 is needed by the translation drive mechanism 41. Specifically, when the treatment rooms 1 are arranged in a single row or a single column, the particle accelerator 2 can be translated along the track 6 to the outside of the treatment room 1 where the particle beam 22 is needed by the translation drive mechanism 41 to drive the carrier 3. The particle accelerator 2 can be aligned with the beam window 11 of the treatment room 1 by aligning the beam outlet 21 of the treatment room 1.

[0085] The particle accelerator 2 can also be rotated to the outside of the treatment room 1 where the particle beam 22 is needed by the rotation drive mechanism 42. Specifically, when the treatment room 1 surrounds the particle accelerator 2, the rotation drive mechanism 42 can be used to drive the carrier 3 to drive the particle accelerator 2 to rotate to the outside of the treatment room 1 where the particle beam 22 is needed, and the beam outlet end 21 of the particle accelerator 2 is aligned with the beam window 11 of the treatment room 1.

[0086] When the treatment rooms 1 are arranged in a single row but not in a straight line, a single column but not in a straight line, double rows or multiple rows, or double columns or multiple columns, the support platform 3 can be driven by the translation drive mechanism 41 and the rotation drive mechanism 42 to drive the particle accelerator 2 to translate or rotate to the outside of the treatment room 1 where the particle beam 22 is required, and the beam output end 21 of the particle accelerator 2 is aligned with the beam window 11 of the treatment room 1.

[0087] As a preferred method, the position of the particle accelerator 2 can also be precisely adjusted in six degrees of freedom by adjusting the X-direction drive mechanism, the Y-direction drive mechanism and the Z-direction drive mechanism of the device 43, so that the particle accelerator 2 is precisely aligned with the beam window 11 of the treatment room 1, thereby ensuring that the particle beam 22 can be accurately injected into the treatment room 1.

[0088] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, substitute and modify the above embodiments within the scope of the invention without departing from the principles and purpose of the present invention. All such changes should fall within the scope of protection of the claims of the present invention.

Claims

1. A multi-chamber particle therapy chamber, characterized in that: include: A plurality of treatment rooms, each of which is provided with an entrance and a beam window corresponding to a beam output end of a particle accelerator outside the treatment room, wherein the beam window and the entrance are arranged on different sides of the treatment room; The treatment room is not provided with a particle accelerator, the treatment room is not provided with a scanning magnet, a dipole magnet or a quadrupole magnet, the treatment room is provided with a treatment head corresponding to the beam window, the treatment room has an isocenter, the beam window is configured to be closed and opened at different times, and the beam window is configured to be opened when the beam output end of the particle accelerator moves to correspond to the beam window; The treatment room comprises a front wall, a rear wall, a left wall and a right wall, the entrance is arranged between the front wall and the left wall, the beam window and the entrance are separated by a partition wall, the partition wall is connected to the left wall, the partition wall and the right wall are separated by a certain distance to form an opening for the patient to pass through, the beam window is opened through the rear wall, and the treatment head is installed on the inner side of the rear wall; along the direction of the beam passing through the beam window, the projection of the isocenter on the partition wall is located within the projection of the beam window on the partition wall; The treatment room further comprises a supporting device, which is used for carrying a patient and moving the patient to an isocenter so that the beam irradiates the patient along a predetermined direction.

2. The multi-chamber particle therapy chamber according to claim 1, characterized in that: The treatment head is configured to be retractable along the penetrating direction of the beam window.

3. The multi-chamber particle therapy chamber according to claim 1, characterized in that: The treatment head is mounted and fixed on the rear wall, the treatment room has no rotating frame, and the beam output direction of the treatment head is fixed.

4. A radiotherapy system, characterized in that: include: A multi-chamber particle therapy chamber as described in any one of claims 1 to 3; A particle accelerator, the particle accelerator is used to generate a particle beam, the particle accelerator is a single unit, can be moved outside different treatment rooms and aligned with the beam window, the particle accelerator injects the particle beam into the treatment room through the beam window, the particle beam is used for radiotherapy through a treatment head in the treatment room, and the radiotherapy system is not provided with a dipole magnet or a quadrupole magnet.

5. The radiation therapy system according to claim 4, characterized in that It also includes a carrier platform, a driving component and a control component, the control component includes a controller, the controller is used to control the driving component, the particle accelerator is arranged on the carrier platform, the driving component is used to drive the carrier platform to move, the carrier platform is used to drive the particle accelerator to move, and the movement mode of the particle accelerator includes: one or more of: translation in the horizontal direction, translation in the vertical direction, rotation in the horizontal direction, and rotation in the vertical direction.

6. The radiation therapy system according to claim 5, characterized in that The driving assembly comprises a translation driving mechanism, and the translation driving mechanism is used to drive the carrier to translate so as to translate the particle accelerator to different locations outside the treatment room; and / or, The driving assembly further comprises a rotation driving mechanism, and the rotation driving mechanism is used for driving the supporting platform to rotate so as to rotate the particle accelerator to different locations outside the treatment room.

7. The radiation therapy system according to claim 6, characterized in that The control assembly further includes a first position sensor, which is connected to the translation drive mechanism and / or the rotation drive mechanism, and is used to detect the rotational movement of the translation drive mechanism and / or the rotation drive mechanism to obtain position information of the carrier platform; and / or, The control component further includes a second position sensor, which is connected to the carrier platform or the particle accelerator, and is used to detect position information of the carrier platform or the particle accelerator.

8. The radiation therapy system according to claim 5, characterized in that The driving assembly further includes an adjusting device, which is disposed on the carrying platform. The adjusting device includes an X-direction driving mechanism, a Y-direction driving mechanism, and a Z-direction driving mechanism. The X-direction driving mechanism is used to drive the particle accelerator to translate along the X-axis and / or to drive the particle accelerator to rotate around the X-axis. The Y-direction driving mechanism is used to drive the particle accelerator to translate along the Y-axis and / or to drive the particle accelerator to rotate around the Y-axis. The Z-direction driving mechanism is used to drive the particle accelerator to translate along the Z-axis and / or to drive the particle accelerator to rotate around the Z-axis. The X-direction, the Y-direction, and the Z-direction are perpendicular to each other.

9. The radiation therapy system according to claim 8, characterized in that The control component further includes a third position sensor, which is connected to the particle accelerator and is used to detect position information of the particle accelerator.

10. The radiation therapy system according to claim 5, characterized in that The treatment room is provided with a shielding door, the shielding door is used to close or open the beam window, the shielding door and the isocenter are respectively located on both sides of the beam window; and / or, A shielding door is arranged on the supporting platform, and the shielding door can move with the supporting platform. When the particle accelerator moves to the beam window of one of the treatment rooms, the shielding door is used to close the beam windows of other treatment rooms.

11. The radiation therapy system according to claim 4, characterized in that It also includes a track, the particle accelerator is arranged on the track, the particle accelerator moves to different outsides of the treatment room through the track, and the extension direction of the track is parallel to the extension direction of the center line of the beam window.

12. The radiation therapy system according to claim 4, characterized in that A limiting device for aligning with the beam window along the front-rear direction is arranged on the moving path of the particle accelerator, and the limiting device is used to mark the moving position of the particle accelerator. A scanning magnet is installed on the particle accelerator, and the particle accelerator moves in a radiation shielded space.

13. A particle accelerator moving method, characterized in that: The particle accelerator moving method is used to move a particle accelerator of a radiotherapy system according to any one of claims 4 to 12, comprising the following steps: The particle accelerator is moved outside a first treatment room where a particle beam is needed, the particle accelerator is docked with a beam window of the first treatment room, and after the beam window is opened, the particle accelerator starts to emit a beam and injects the particle beam into the first treatment room through the beam window, and the particle beam is used for radiotherapy through a treatment head in the first treatment room; When the first treatment room completes the radiotherapy, the particle accelerator stops emitting beams, then moves to the outside of the second treatment room where the particle beam is needed and docks with the beam window of the second treatment room, and then starts emitting beams.

14. The particle accelerator moving method according to claim 13, characterized in that: The method of moving the particle accelerator outside the treatment room where the particle beam is required comprises: Translationally moving to the treatment room where the particle beam is needed by the translation driving mechanism; and / or, Rotating the particle accelerator to a position outside the treatment room where a particle beam is required by the rotation drive mechanism; and / or, The position of the particle accelerator is precisely adjusted in six degrees of freedom by the X-direction driving mechanism, the Y-direction driving mechanism and the Z-direction driving mechanism of the adjusting device, so that the particle accelerator is precisely aligned with the beam window of the treatment room.

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