Photon flash therapy device, photon beam forming method and computer readable storage medium

Abstract

The invention relates to a photon flash therapy device, a photon beam forming method and a computer readable storage medium. The photon flash therapy device comprises an electron beam generator, an electron accelerator, a deflection part, an annular deflection mechanism and a target assembly. When the photon flash therapy device works, electron beams generated by the electron beam generator are accelerated back and led out through the electron accelerator, the accelerated electron beams are guided to the target assembly after being sequentially subjected to first deflection of the deflection piece and second deflection of the annular deflection mechanism, and then photon beams are formed by the electron beams through the target assembly. Therefore, the size of the photon flash therapy device can be greatly reduced, and the manufacturing cost can be reduced; meanwhile, the efficiency and the flexibility of adjusting the target position formed after the photon beams are converged when the photon flash therapy device works can be improved.

Description

Technical Field

[0001] The present invention belongs to the technical field related to medical devices, and in particular, relates to a photon flash therapy device, a photon beam forming method and a computer-readable storage medium. Background Art

[0002] Flash therapy is a treatment option for tumor radiotherapy. The dose rate of flash therapy is many times higher than that of current radiotherapy and can provide precise doses.

[0003] At present, the existing flash therapy scheme using photon beams usually uses a high-gradient linear accelerator to generate the electron beam required for flash therapy, and then uses a target assembly to convert the electron beam into a photon beam, and then uses a rotatable frame to achieve multi-angle irradiation of the tumor. In order to finally generate a photon beam suitable for flash therapy, it is usually necessary to use multiple high-gradient linear accelerators to accelerate the electron beams passing through in sequence. As a result, the equipment using this scheme is not only large in size, but also has high construction costs and subsequent maintenance costs; in addition, the existing mechanical method of adjusting the isocenter position of the electron beam's final convergence through the rotation of the frame to adapt to the different tumor positions of different patients, but due to the large frame, the operation is inconvenient and the adjustment efficiency is low. Summary of the invention

[0004] In view of this, it is necessary to provide a photon flash therapy device, a photon beam forming method and a computer-readable storage medium for solving the above-mentioned technical problems.

[0005] A photon flash therapy device, comprising:

[0006] an electron beam generator for generating an electron beam;

[0007] An electron accelerator, used for cyclotron acceleration of the electron beam and extracting the accelerated electron beam;

[0008] A deflection member is arranged on the traveling path of the accelerated electron beam, and the deflection member (30) is capable of performing a first deflection process on the accelerated electron beam;

[0009] an annular deflection mechanism, used for receiving the electron beam after the first deflection by the deflection member, and capable of performing a second deflection process on the electron beam after the first deflection process; and

[0010] The target assembly forms a photon beam by receiving the electron beam after the second deflection process.

[0011] It can be understood that the electron beam is accelerated by cyclotron acceleration, so that the electron beam can be accelerated for multiple consecutive cycles when the electron accelerator is working. In this way, the volume required for the electron accelerator to accelerate the electron beam to a photon beam that meets the requirements of flash therapy can be reduced, and the electron beam acceleration efficiency can be improved, thereby reducing the volume of the photon flash therapy device and reducing the cost. At the same time, the photon flash therapy device can achieve the purpose of controlling the target position to which the final photon beam is converged or delivered by controlling the strength of the magnetic field generated by the deflection member when it is working. In this way, the efficiency and flexibility of adjusting the target position formed after the photon beam is converged when the photon flash therapy device is working are improved.

[0012] In one embodiment, the target components are distributed in a ring shape.

[0013] It can be understood that the target components are distributed in a ring shape, so that the photon beam converted by the target components can irradiate the target position at any angle according to the needs of use, further improving the efficiency and flexibility of adjusting the target position formed after converging the photon beam when the photon flash therapy device is working.

[0014] In one of the embodiments, the photon flash therapy device further comprises a multi-leaf grating, and the multi-leaf grating is used to adjust the beam shape of the photon beam from the target assembly.

[0015] It can be understood that the beam shape of the photon beam is adjusted by using a multi-leaf grating, thereby improving the conformality of the photon flash therapy device when irradiating the target object and reducing damage to normal tissues and organs around the tumor.

[0016] In one embodiment, the energy range of the photon beam is 6MeV-10MeV.

[0017] In one embodiment, the electron accelerator includes an acceleration cavity and two groups of vector magnets, and the two groups of vector magnets are symmetrically arranged on two sides of the acceleration cavity.

[0018] In one embodiment, the electron accelerator further comprises an extraction component, which is arranged on a circulation path of the electron beam in the electron accelerator and is used to extract the accelerated electron beam;

[0019] Wherein, the position of the lead-out component can be adjusted relative to the electron accelerator.

[0020] It can be understood that by changing the position of the lead-out component in the electron accelerator, different energy selections for the electron beam derived from the electron accelerator can be achieved, so as to facilitate the selection and control of electron beams of different energies of the electron accelerator and meet different usage requirements when the photon flash therapy device is working.

[0021] In one embodiment, the electron accelerator includes an electron beta accelerator, a petal-type accelerator, or a racetrack-type accelerator.

[0022] In one of the embodiments, the strength of the magnetic field generated by the deflection element when in operation can be adjusted so that the electron beam after the first deflection process can be injected into the annular deflection mechanism at different angles.

[0023] It can be understood that the purpose of changing the angle of the electron beam entering the annular deflection mechanism is achieved by adjusting the intensity of the magnetic field generated during the deflection operation, thereby facilitating the adjustment of the target position during the operation of the photon flash therapy device.

[0024] The present application also claims protection for a photon beam forming method, comprising:

[0025] Cyclotron-accelerating the electron beam by an electron accelerator to obtain an accelerated electron beam;

[0026] Performing a first deflection process on the accelerated electron beam using a deflection member to guide the accelerated electron beam to an annular deflection mechanism;

[0027] Using the annular deflection mechanism to perform a second deflection process on the electron beam after the first deflection process and guide it to the target assembly; and

[0028] The electron beam after the second deflection process is used to form a photon beam through the target assembly.

[0029] The present application also claims protection for a computer-readable storage medium having instructions stored thereon, which, when executed by a processor, implement the above-mentioned photon beam forming method.

[0030] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0031] The photon flash therapy device, the photon beam forming method and the computer-readable storage medium of the present invention use an accelerating method to accelerate the electron beam, so that the electron beam can be accelerated for multiple consecutive cycles when the electron accelerator is working. In this way, the volume required for the electron accelerator to accelerate the electron beam to a photon beam that meets the flash therapy requirements can be reduced, and the electron beam acceleration efficiency can be improved, thereby reducing the volume of the photon flash therapy device and reducing the cost. At the same time, the photon flash therapy device can achieve the purpose of controlling the target position to which the final photon beam is converged or delivered by controlling the intensity of the magnetic field generated by the deflection member when it is working. In this way, the efficiency and flexibility of adjusting the target position formed after the photon beam is converged when the photon flash therapy device is working are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 A schematic diagram of the structure of a photon flash therapy device according to an embodiment of the present application;

[0034] Figure 2 A schematic diagram of the structure of an electron beam generator and an electron accelerator involved in one embodiment of the present application;

[0035] Figure 3 It is a structural schematic diagram of a deflection member and an annular deflection mechanism involved in one embodiment of the present application;

[0036] Figure 4 A schematic structural diagram of a deflection member according to an embodiment of the present application;

[0037] Figure 5 It is a schematic structural diagram of an annular deflection mechanism involved in an embodiment of the present application.

[0038] Figure numerals: 100, photon flash therapy device; 10, electron beam generator; 20, electron accelerator; 21, acceleration cavity; 22, vector magnet; 23, lead-out component; 30, deflection member; 40, annular deflection mechanism; 50, target assembly; 60, hospital bed. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] It should be noted that when an element is referred to as being "provided on" another element, it may be directly provided on the other element or there may be a central element. When an element is considered to be "provided on" another element, it may be directly provided on the other element or there may be a central element at the same time. When an element is considered to be "fixed to" another element, it may be directly fixed to the other element or there may be a central element at the same time.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0042] The photon flash therapy device 100 for which protection is requested in the present application is used to generate a photon beam that can be used for flash therapy. As an example, the energy range of the photon beam is 6MeV-10MeV. However, the energy range of the photon beam can also be other ranges, for example, 5MeV-12MeV, 7MeV-11MeV, higher than 12MeV, etc. Optionally, the energy of the photon beam can be much greater than the energy of an ordinary photon beam. Accordingly, the photon beam generated by the photon flash therapy device 100 of the present application can achieve high-dose rate radiation delivery, thereby completing the desired radiotherapy in a very short time. In addition, when satisfying the use requirements of irradiating the patient's tumor with a photon beam, the use requirements of deep treatment can be achieved. It should be noted that the energy value of the photon beam generated by the photon flash therapy device 100 of the present application when working can be specifically 6MeV, 7MeV, 10MeV, etc., and the energy value of the photon beam can be specifically set according to the treatment requirements during flash therapy, which will not be elaborated here.

[0043] like Figure 1 As shown, the photon flash therapy device 100 involved in an embodiment of the present application includes an electron beam generator 10, an electron accelerator 20, a deflection member 30, an annular deflection mechanism 40 and a target assembly 50. The electron beam generator 10 can be used to generate an electron beam. The electron accelerator 20 can be used to perform cyclotron acceleration on the electron beam and extract the accelerated electron beam. The deflection member 30 can be arranged on the path of the accelerated electron beam, and the deflection member 30 can perform a first deflection process on the electron beam passing through the deflection member 30. The annular deflection mechanism 40 can be used to receive the electron beam after the first deflection process by the deflection member 30, and can perform a second deflection process on the electron beam. The target assembly 50 is used to receive the electron beam that has been converged after the second deflection process by the annular deflection mechanism 40, and can convert the electron beam into a photon beam. The photon beam can be emitted toward the target position.

[0044] It can be understood that the acceleration of the electron beam by cyclotron acceleration can reduce the volume of the electron accelerator 20 required to accelerate the electron beam to a photon beam that meets the requirements of flash therapy, and improve the efficiency of electron beam acceleration, thereby reducing the volume of the photon flash therapy device 100 and reducing costs. For example, in the case of accelerating the electron beam by cyclotron acceleration, the electron accelerator 20 can perform multiple consecutive acceleration processes on the electron beam when it is working, thereby reducing the floor space and improving the acceleration efficiency. Additionally or alternatively, the photon flash therapy device 100 can achieve the purpose of controlling the target position where the final photon beam is converged or delivered by controlling the intensity of the electric field and / or magnetic field generated by the deflection member 30 when it is working, thereby improving the efficiency and flexibility of adjusting the target position formed after the photon beam is converged when the photon flash therapy device 100 is working. For example, the deflection member 30 can be a mutually opposite energized plate (flat plate, curved plate or arched plate), an electromagnet, a permanent magnet or a combination thereof. For example, when the deflection member 30 is an electrically conductive plate facing each other, the electric field strength formed between the electrically conductive plates can be controlled by controlling the magnitude of the current passing through the deflection member 30. For example, when the deflection member 30 is an electromagnet, the strength of the magnetic field generated by the deflection member 30 when it is working can be controlled by controlling the magnitude of the current passing through the deflection member 30. When the deflection member 30 is a permanent magnet, the strength generated by the deflection member 30 when it is working can be controlled by the temperature of the deflection member 30 or the external magnetic field. It should be noted that the electron accelerator 20 mentioned above performs cyclotron acceleration on the electron beam, which means that the electron beam can pass through the acceleration cavity 21 of the electron accelerator 20 in sequence before being drawn out from the electron accelerator 20. As a non-limiting example, the electron beam can be sequentially accelerated from the same position of the acceleration cavity 21 and can also be sequentially accelerated from different positions of the acceleration cavity 21 and can be accelerated in a circuitous manner.

[0045] It should be noted that the target position refers to the position where irradiation or delivery is desired. As a non-limiting example, the target position may be the isocenter position of the tumor, a specific volume around the isocenter, or several discrete point positions. As a specific example, the target position may include a region of interest (ROI), for example, the location of a tumor or other lesion in the patient's body where the photon flash therapy device 100 acts when it is working, that is, the photon flash therapy device 100 can accurately irradiate the tumor or lesion when it is working, and achieve the purpose of flash therapy. In addition, the target position may also be the position of various other living or non-living objects. As an example, the target position may be a position on an irradiated experimental object (for example, a dose verification phantom, a small animal for experiment, a dose tester), etc.

[0046] In some embodiments, the electron beam generator 10 is specifically configured as an electron gun, and when the electron gun is in operation, it can emit an electron beam toward the electron accelerator 20. It can be understood that the electron beam generator 10 is not limited to an electron gun, and those skilled in the art can configure the electron beam generator 10 to be other devices capable of generating electron beams, such as an electron transmitter, an electron diode, etc.

[0047] like Figure 2 As shown, the electron accelerator 20 of the present application includes an accelerating cavity 21 and two sets of vector magnets 22. The accelerating cavity 21 can accelerate the electron beam located in the accelerating cavity 21. The two sets of vector magnets 22 can be symmetrically arranged on both sides of the accelerating cavity 21 to guide the electron beam emitted from the accelerating cavity 21 to be re-injected into the accelerating cavity 21. As a non-limiting example, when the electron accelerator 20 is working, the electron beam can continuously pass through the accelerating cavity 21 when circulating in the electron accelerator 20, and the electron beam is accelerated by the accelerating cavity 21, so that the circle formed by each circulation path of the electron beam gradually becomes larger, and at the same time, the energy of the electron beam is continuously strengthened. It should be noted that the above-mentioned vector magnet 22 can deflect the electron beam passing through when working to drive the electron beam to turn. Optionally, the electron beam formed when the electron accelerator 20 is working has a higher beam current intensity, so that the photon beam finally formed can meet the radiation dose rate requirements of the flash therapy.

[0048] As a non-limiting example, the accelerating cavity 21 may be configured as a waveguide type resonant cavity or a coaxial line type resonant cavity, so that each time the electron beam passes through the waveguide type resonant cavity or the coaxial line type resonant cavity, it obtains a certain energy gain and achieves the purpose of accelerating the electron beam.

[0049] The electron accelerator 20 may include an extraction component 23. The extraction component 23 may be disposed on a circulation path of the electron beam in the electron accelerator 20, and is used to extract the electron beam after being accelerated by the acceleration chamber 21. For example, the extraction component 23 may be an electrically conductive plate (a flat plate, an arc plate, or an arched plate) opposite to each other, an electromagnet, a permanent magnet, or a combination thereof. As a non-limiting example, when the electron beam in the electron accelerator 20 travels to the extraction component 23, the extraction component 23 may deflect the electron beam away from the previous travel path through an electric field and / or a magnetic field, so that the electron beam is extracted from the electron accelerator 20.

[0050] In some embodiments, the position of the lead-out component 23 can be adjusted relative to the electron accelerator 20. For example, different positions of the lead-out component 23 in the electron accelerator 20 can correspond to different paths of the electron beam in the electron accelerator 20. In this way, by adjusting the position of the lead-out component 23 in the electron accelerator 20, different energy selections of the electron beam derived from the lead-out component 23 of the electron accelerator 20 can be achieved, which can facilitate the selection and control of electron beams of different energies when the electron accelerator 20 is working, and meet different usage requirements of the photon flash therapy device 100 when working.

[0051] As a specific example, the electron accelerator 20 is provided with an installation channel (not shown), the lead-out component 23 can be arranged in the installation channel, and the position of the lead-out component 23 in the installation channel can be controlled by a telescopic cylinder or a telescopic motor. In this way, the control of adjusting the lead-out component 23 to different positions in the installation channel can be realized, that is, the automatic control of the position of the lead-out component 23 in the electron accelerator 20 can be realized.

[0052] In some embodiments, the electron accelerator 20 may include a betatron, a petal-type accelerator, or a racetrack-type accelerator.

[0053] As can be seen from the above, the deflection member 30 can generate an electric field and / or a magnetic field, and utilize the electric field and / or the magnetic field to implement the first deflection processing on the electron beam passing through the magnetic field. Figure 3 As shown, when the photon flash therapy device 100 is working, the angle of the electron beam passing through the deflection member 30 and entering the annular deflection mechanism 40 can be adjusted by adjusting the magnetic field strength generated by the deflection member 30 when the deflection member 30 is working. In this way, it is convenient to adjust the target position when the photon flash therapy device 100 is working, and meet the use requirements of irradiating the area of ​​interest such as the tumor. As a non-limiting example, see Figure 1 The electron beam that has undergone the first deflection processing can be injected into the annular deflection mechanism 40 at an angle to the plane where the annular shape of the annular deflection mechanism 40 is located.

[0054] It can be understood that when the photon flash therapy device 100 is working, in the case where the deflection member 30 is an electromagnet, the electromagnetic intensity of the deflection member 30 when it is powered on can be adjusted by adjusting the current when the deflection member 30 is powered on. In this way, it is convenient to adjust the target position where the photon beam generated by the photon flash therapy device 100 when it is working.

[0055] In some embodiments, the deflection member 30 may include a vector magnet and / or a deflection resonant cavity. When the deflection member 30 includes a vector magnet, for example, Figure 4As shown, the vector magnet can be set as a set of orthogonal vector magnets with adjustable deflection directions, which can be specifically composed of two pairs of coil assemblies arranged orthogonally. When the two pairs of coil assemblies are energized, they can generate two magnetic fields arranged perpendicularly in the direction of the magnetic field. In this way, when the electron beam passes through the vector magnet perpendicular to one pair of coil assemblies, the direction of movement can be deflected under the action of the corresponding magnetic field, and the purpose of performing the first deflection processing on the electron beam is achieved. Of course, the two pairs of coil assemblies can control the magnetic field strength by changing the energized current, so as to control the electron beam to perform the first deflection processing at different angles when passing through the vector magnet, which will not be elaborated here.

[0056] In addition, in order to achieve the purpose of adjusting the target position (for example, the isocenter position) of the photon beam generated when the photon flash therapy device 100 is working, in addition to the above-mentioned structure in which the deflection member 30 is set to an adjustable magnetic field, another deflection member (not shown) can be set on the path of the annular deflection mechanism 40, and the deflection member can also generate a magnetic field. The intensity of the magnetic field generated by the deflection member can be adjusted to achieve the adjustment of the final target position of the photon beam. Optionally, when two deflection members are used to adjust the target position of the photon beam, the intensity of the magnetic field generated when the deflection member 30 is powered on can be set to be non-adjustable. Optionally, the deflection member set on the emission path of the annular deflection mechanism 40 can be specifically set as a vector magnet or a deflection resonant cavity.

[0057] like Figure 5 As shown, in some embodiments, the annular deflection mechanism 40 is set to a circular ring structure. In this way, the electron beam passing through the annular deflection mechanism 40 can be guided to the target assembly 50 from different directions within 360°, thereby further improving the therapeutic effect of the photon flash therapy device 100 on the tumor when it is working. It should be noted that the annular deflection mechanism 40 is not limited to the circular ring structure described above. For those skilled in the art, the annular angle of the annular deflection mechanism 40 can be set to 300°, 270°, 180° or any other angle, which will not be elaborated here.

[0058] As a specific example, the annular deflection mechanism 40 may include a room temperature magnet and / or a superconducting magnet, so that when the annular deflection mechanism 40 is working, the magnetic field strength is specifically used to implement the second deflection processing of the electron beam, so that the deflected electron beam can be converged to the target assembly 50. It should be noted that when the annular deflection mechanism 40 includes a room temperature magnet, the field value of the room temperature magnet can be less than 2T; when the annular deflection mechanism 40 includes a superconducting magnet, the field value of the superconducting magnet can be higher than that of the room temperature magnet, and in order to meet the use requirements of the annular deflection mechanism 40, it is usually necessary to equip the annular deflection mechanism 40 with a low temperature cooling system, which is not the focus of the protection requested in this application and will not be elaborated here.

[0059] like Figure 1 As shown, in some embodiments, the target assembly 50 is distributed in an annular shape, and optionally, is set to a 360° annular structure, so that the photon beam converted by the target assembly 50 can irradiate the target position at any angle according to the use requirements, further improving the efficiency and flexibility of adjusting the target position formed after the photon beam is converged when the photon flash therapy device 100 is working. It should be noted that the target assembly 50 is not limited to the 360° annular structure described above. For those skilled in the art, the number of target assemblies 50 can be set to multiple, and multiple target assemblies 50 can be arranged at intervals along the circumferential direction around the target position (for example, the circumferential direction of the circular hole surrounded by the annular deflection mechanism 40) to meet the use requirements of irradiating the target position at different angles.

[0060] As non-limiting examples, the target assembly 50 may include a solid target, a rotating target, a liquid metal target, and / or a waterfall particle target. Optionally, the target assembly 50 may be made of one or more metals or alloys such as copper, aluminum, lead, tungsten, copper alloys, aluminum alloys, and lead alloys. The target assembly 50 may be made of an alloy with a higher atomic number so that the energy of the photons excited and released by the electron beam targeting is higher.

[0061] In some embodiments, the photon flash therapy device 100 may include a multi-leaf grating (not shown). The multi-leaf grating is used to adjust the beam shape of the photon beam from the target assembly 50. For example, the multi-leaf grating can receive the photon beam from the target assembly 50, and can conform the photon beam to match the shape of the region of interest at the target position. In this way, the conformity of the photon flash therapy device to irradiate the region of interest (such as a tumor or other lesions) when working can be improved, and the damage to normal tissues and organs around the tumor can be reduced. It should be noted that the multi-leaf grating can be specifically configured to match the target assembly 50. As an example, the multi-leaf grating can be distributed in an annular shape, for example, distributed along the circumferential direction of the circular hole surrounded by the annular deflection mechanism 40. As a non-limiting example, multiple target assemblies 50 can be arranged at intervals along the circumferential direction of the target position to meet the use requirements of irradiating the target position at different angles. The specific leaf structure, control mechanism, and working principle of how to cooperate with the target assembly 50 and achieve conformal photon beam when working can all adopt existing conventional technology, which will not be elaborated here.

[0062] In addition, in some embodiments, the photon flash therapy device 100 may further include a treatment head (not shown), which can rotate along the circle surrounded by the annular deflection mechanism 40. The treatment head may include a target assembly 50. The electron beam after the second deflection by the annular deflection mechanism 40 can be injected into the treatment head rotated to a position corresponding to the electron beam, and then injected into the target assembly 50, and the target assembly 50 forms a photon beam, which is emitted from the treatment head and emitted to the target position. Alternatively or additionally, the treatment head may include a multi-leaf grating. In the case where the treatment head includes both the target assembly 50 and the multi-leaf grating, the electron beam after the second deflection can be injected into the treatment head located at the corresponding position, and then injected into the target assembly 50 to form a photon beam, which is conformed by the multi-leaf grating, emitted from the treatment head and emitted to the target position. In the case where the treatment head only includes a multi-leaf grating, the target assembly 50 can be distributed in a ring shape, and the electron beam deflected by the ring-shaped deflection mechanism 40 can be shot to the target assembly 50 to form a photon beam, which is then shot into the treatment head rotated to a position corresponding to the photon beam. The multi-leaf grating in the treatment head adjusts the beam shape of the photon beam, and the adjusted photon beam is emitted from the treatment head and directed toward the target position.

[0063] In addition, the photon flash therapy device 100 may further include a bed 60. The bed 60 penetrates the target assembly 50 and the multi-leaf grating arrangement. The photon beam formed by the target assembly 50 can be set to a target position formed after passing through the multi-leaf grating in the area where the bed 60 is located. In this way, when the photon flash therapy device 100 is working, the patient can lie flat on the bed 60 for photon beam irradiation treatment.

[0064] The present application also provides a photon beam forming method, comprising: accelerating an electron beam by an electron accelerator 20 to obtain an accelerated electron beam; performing a first deflection process on the accelerated electron beam by a deflection member 30 to guide the accelerated electron beam to an annular deflection mechanism 40; performing a second deflection process on the electron beam after the first deflection process by the annular deflection mechanism 40 and guiding it to a target assembly 50; and, using the electron beam after the second deflection, forming a photon beam through the target assembly 50. The formed photon beam can be guided to any position. For example, it is guided to be emitted toward a target position that needs treatment or radiation, or it is guided to other photon beam processing equipment for further processing, etc. As a non-limiting example, the photon beam can be emitted toward a target position, so that the photon beam can reach this target position, thereby performing radiotherapy, inspection or testing on the object or target.

[0065] In addition, the present application also provides a computer-readable storage medium on which instructions are stored. When the instructions are executed by a processor, the following steps are implemented: accelerating an electron beam by an electron accelerator 20 to obtain an accelerated electron beam; performing a first deflection process on the accelerated electron beam by a deflection member 30 to guide the accelerated electron beam to an annular deflection mechanism 40; performing a second deflection process on the electron beam after the first deflection process by the annular deflection mechanism 40 and guiding it to a target assembly 50; and, using the electron beam after the second deflection, forming a photon beam through the target assembly 50. The photon beam can be emitted toward a target position.

[0066] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0067] In summary, the photon flash therapy device 100 of the present invention, through its overall system design and electron path design, enables the electron accelerator 20, the deflection member 30, the annular deflection mechanism 40, the target assembly 50 and other parts to cooperate with each other, while realizing the use of superphoton beams for flash therapy, greatly reducing the volume of the photon flash therapy device 100 and reducing the manufacturing cost, and also realizing flexible adjustment of the target position and convenience of control, thus facilitating doctors to perform flash therapy on patients.

[0068] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection claimed by the present invention.

Claims

1. A photon flash therapy device, characterized in that: The photon flash therapy device (100) comprises: An electron beam generator (10) for generating an electron beam; An electron accelerator (20) for cyclotron-accelerating the electron beam and extracting the accelerated electron beam; A deflection element (30) is disposed on a travel path of the accelerated electron beam, and the deflection element (30) is capable of performing a first deflection process on the accelerated electron beam; an annular deflection mechanism (40), used for receiving the electron beam after the first deflection processing, and capable of performing a second deflection processing on the electron beam after the first deflection processing; and The target assembly (50) is used for forming a photon beam by receiving the electron beam after the second deflection process.

2. The photon flash therapy device according to claim 1, characterized in that: The target components (50) are distributed in a ring shape.

3. The photon flash therapy device according to claim 1, characterized in that: The photon flash therapy device (100) further comprises a multi-leaf grating, which is used to adjust the beam shape of the photon beam from the target assembly (50).

4. The photon flash therapy device according to claim 1, characterized in that: The energy range of the photon beam is 6MeV-10MeV.

5. The photon flash therapy device according to claim 1, characterized in that: The electron accelerator (20) comprises an accelerating cavity (21) and two groups of vector magnets (22), wherein the two groups of vector magnets (22) are symmetrically arranged in the accelerating cavity (21).

6. The photon flash therapy device according to any one of claims 1 to 5, characterized in that: The electron accelerator (20) comprises an extraction component (23), which is arranged on a circulation path of the electron beam in the electron accelerator (20) and is used to extract the accelerated electron beam; The lead-out component (23) can be adjusted in position relative to the electron accelerator (20).

7. The photon flash therapy device according to claim 1, characterized in that: The electron accelerator (20) comprises an electron induction accelerator, a petal-shaped accelerator or a racetrack-shaped accelerator.

8. The photon flash therapy device according to claim 1, characterized in that: The intensity of the magnetic field generated by the deflection member (30) when in operation can be adjusted so that the electron beam after the first deflection process can be injected into the annular deflection mechanism (40) at different angles.

9. A method for forming a photon beam, characterized in that: include: Accelerating the electron beam by an electron accelerator (20) to obtain an accelerated electron beam; Using a deflection member (30) to perform a first deflection process on the accelerated electron beam so as to guide the accelerated electron beam to an annular deflection mechanism (40); Using the annular deflection mechanism (40) to perform a second deflection process on the electron beam after the first deflection process and guide the electron beam to the target assembly (50); and The electron beam after the second deflection process is used to form a photon beam through the target assembly (50).

10. A computer-readable storage medium having instructions stored thereon, characterized in that: The instructions implement the photon beam forming method according to claim 9 when executed by a processor.

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