Proton acceleration system, neutron generating device, and isotope generating device

Abstract

The utility model provides a kind of proton acceleration system, neutron generating device and isotope generating device.The proton acceleration system includes radio frequency quadrupole acceleration module, at least has radio frequency quadrupole accelerator;Drift tube linear accelerator module, at least has drift tube linear accelerator.Based on the above-mentioned proton acceleration system, first by radio frequency quadrupole acceleration module to proton beam is accelerated to handle, so that the energy of proton beam reaches first energy value;Further energy adjustment processing is carried out to the proton beam of first energy value by drift tube linear accelerator module, so that the energy of proton beam reaches the second energy value that meets requirements.

Description

Technical Field

[0001] This invention belongs to the field of particle acceleration technology, and particularly relates to proton acceleration systems, neutron generation devices, and isotope generation devices. Background Technology

[0002] With the development and promotion of particle acceleration technology, proton accelerators have been gradually applied to various fields such as basic research, medicine, industry, agriculture, and biology.

[0003] In the medical field, proton accelerators are often used to obtain medical radioactive isotopes by generating proton beams; or, proton accelerators are used to obtain particles such as neutrons by generating proton beams; or, proton accelerators are used to achieve targeted therapy by generating proton beams. Utility Model Content

[0004] Given that the energy of the proton beams produced by existing proton acceleration systems is often fixed and unadjustable, this specification provides a proton acceleration system, a neutron generation device, and an isotope generation device that can adjust the energy of the proton beam output by the proton acceleration system to obtain a proton beam that meets the requirements. This allows it to be better adapted to different application scenarios and meet diverse scenario needs.

[0005] This specification provides a proton acceleration system for accelerating proton beams, including:

[0006] A radio frequency quadrupole acceleration module, which has at least a radio frequency quadrupole accelerator;

[0007] A drift tube linear accelerator module, which at least includes a drift tube linear accelerator;

[0008] The radio frequency quadrupole acceleration module is used to accelerate the proton beam so that the energy of the proton beam reaches a first energy value.

[0009] The drift tube linear acceleration module is used to adjust the energy of the proton beam at a first energy value so that the energy of the proton beam reaches a second energy value; wherein, the energy adjustment includes: increasing the energy or decreasing the energy.

[0010] In one embodiment, the upper limit of the output speed of the drift tube linear accelerator and the upper limit of the output speed of the radio frequency quadrupole accelerator satisfy a preset numerical relationship.

[0011] The upper limit of the output speed of the drift tube linear accelerator and the upper limit of the output speed of the radio frequency quadrupole accelerator satisfy a preset numerical relationship, including: the ratio of the upper limit of the output speed of the drift tube linear accelerator to the upper limit of the output speed of the radio frequency quadrupole accelerator is greater than or equal to 0.85 and less than or equal to 1.15.

[0012] In one embodiment, the drift tube linear accelerator includes a pattern-based drift tube linear accelerator or a pattern-based drift tube linear accelerator.

[0013] In one embodiment, the drift tube linear accelerator module further includes: a second power source for providing electromagnetic waves to the drift tube linear accelerator;

[0014] The energy adjustment operation includes: adjusting the phase parameter of the second power source, and / or adjusting the power parameter of the second power source.

[0015] In one embodiment, the radio frequency quadrupole acceleration module further includes: a first power source and a first waveguide assembly; the drift tube linear acceleration module further includes: a second waveguide assembly;

[0016] The first power source is connected to the radio frequency quadrupole accelerator via a first waveguide assembly; the second power source is connected to the drift tube linear accelerator via a second waveguide assembly.

[0017] The first power source provides electromagnetic waves to the radio frequency quadrupole accelerator through the first waveguide assembly; the second power source provides electromagnetic waves to the drift tube linear accelerator through the second waveguide assembly.

[0018] In one embodiment, the radio frequency quadrupole acceleration module further includes: a first waveguide assembly; the drift tube linear acceleration module further includes: a second waveguide assembly; and the system further includes: a third power source.

[0019] The third power source is connected to the radio frequency quadrupole accelerator via the first waveguide assembly; the third power source is connected to the drift tube linear accelerator via the second waveguide assembly.

[0020] The third power source provides electromagnetic waves to the radio frequency quadrupole accelerator through the first waveguide assembly; the third power source provides electromagnetic waves to the drift tube linear accelerator through the second waveguide.

[0021] In one embodiment, the proton acceleration system is also connected to an ion source; the ion source is used to generate a proton beam.

[0022] The ion source is connected to the radio frequency quadrupole accelerator; the radio frequency quadrupole accelerator is connected to the drift tube linear accelerator.

[0023] In one embodiment, the proton acceleration system further includes: a low-energy transmission section, a medium-energy transmission section, and a high-energy transmission section;

[0024] The low-energy transmission segment is connected to the output end of the ion source and the input end of the radio frequency quadrupole accelerator, respectively; the medium-energy transmission segment is connected to the output end of the radio frequency quadrupole accelerator and the input end of the drift tube linear accelerator, respectively; and the high-energy transmission segment is connected to the output end of the drift tube linear accelerator.

[0025] In one embodiment, the medium-energy transmission segment includes at least a quadrupole magnet.

[0026] This specification also provides a proton acceleration system for accelerating proton beams, including:

[0027] A radio frequency quadrupole acceleration module, which has at least a radio frequency quadrupole accelerator;

[0028] The first drift tube linear acceleration module has at least a first drift tube linear accelerator;

[0029] The second drift tube linear acceleration module has at least a second drift tube linear accelerator;

[0030] The radio frequency quadrupole acceleration module is used to accelerate the proton beam so that the energy of the proton beam reaches a first energy value.

[0031] The first drift tube linear acceleration module is used to perform a first energy adjustment on the proton beam with a first energy value so that the energy of the proton beam reaches a second energy value;

[0032] The second drift tube linear acceleration module is used to perform a second energy adjustment on the proton beam with the second energy value so that the energy of the proton beam reaches the third energy value;

[0033] The first energy adjustment and the second energy adjustment respectively include: increasing energy or decreasing energy.

[0034] In one embodiment, the upper limit of the output speed of the first drift tube linear accelerator and the upper limit of the output speed of the radio frequency quadrupole accelerator satisfy a preset numerical relationship.

[0035] Wherein, the upper limit of the output speed of the first drift tube linear accelerator and the upper limit of the output speed of the radio frequency quadrupole accelerator satisfy a preset numerical relationship, including: the ratio of the upper limit of the output speed of the first drift tube linear accelerator to the upper limit of the output speed of the radio frequency quadrupole accelerator is greater than or equal to 0.85 and less than or equal to 1.15.

[0036] In one embodiment, the upper limit of the output speed of the first drift tube linear accelerator and the upper limit of the output speed of the second drift tube linear accelerator satisfy a preset matching relationship.

[0037] Wherein, the upper limit of the output speed of the first drift tube linear accelerator and the upper limit of the output speed of the second drift tube linear accelerator satisfy a preset matching relationship, including: the upper limit of the output speed of the first drift tube linear accelerator is equal to the upper limit of the output speed of the radio frequency quadrupole accelerator.

[0038] In one embodiment, the first drift tube linear accelerator is a pattern-based drift tube linear accelerator, and the second drift tube linear accelerator is a pattern-based drift tube linear accelerator.

[0039] Alternatively, the first drift tube linear accelerator is a pattern-based drift tube linear accelerator, and the second drift tube linear accelerator is a pattern-based drift tube linear accelerator.

[0040] Alternatively, the first drift tube linear accelerator is a pattern-based drift tube linear accelerator, and the second drift tube linear accelerator is a pattern-based drift tube linear accelerator.

[0041] Alternatively, the first drift tube linear accelerator is a pattern-based drift tube linear accelerator, and the second drift tube linear accelerator is a pattern-based drift tube linear accelerator.

[0042] In one embodiment, the proton acceleration system further includes:

[0043] The first power source is used to provide electromagnetic waves to the radio frequency quadrupole accelerator;

[0044] The second power source is used to provide electromagnetic waves to the first drift tube linear accelerator;

[0045] The third power source is used to provide electromagnetic waves to the second drift tube linear accelerator;

[0046] The electromagnetic wave parameters provided by the second power source are different from those provided by the third power source.

[0047] This specification also provides a neutron generating apparatus for generating a neutron beam, comprising at least a proton acceleration system and a neutron generating system;

[0048] The proton acceleration system, used to accelerate a proton beam, includes:

[0049] A radio frequency quadrupole acceleration module, having at least a radio frequency quadrupole accelerator,

[0050] A drift tube linear accelerator module, which at least includes a drift tube linear accelerator;

[0051] The radio frequency quadrupole acceleration module is used to accelerate the proton beam so that the energy of the proton beam reaches a first energy value.

[0052] The drift tube linear acceleration module is used to adjust the energy of the proton beam at a first energy value so that the energy of the proton beam reaches a second energy value; wherein, the energy adjustment includes: increasing the energy or decreasing the energy;

[0053] The neutron generation system includes at least a target material;

[0054] The proton acceleration system is connected to the neutron generation system;

[0055] The neutron generation system is used to generate a neutron beam by reacting the proton beam of the second energy value with a target material.

[0056] This specification also provides an isotope generation device for generating isotopes, which includes at least a proton acceleration system and an isotope generation system.

[0057] The proton acceleration system, used to accelerate a proton beam, includes:

[0058] A radio frequency quadrupole acceleration module, having at least a radio frequency quadrupole accelerator,

[0059] A drift tube linear accelerator module, which at least includes a drift tube linear accelerator;

[0060] The radio frequency quadrupole acceleration module is used to accelerate the proton beam so that the energy of the proton beam reaches a first energy value.

[0061] The drift tube linear acceleration module is used to adjust the energy of the proton beam at a first energy value so that the energy of the proton beam reaches a second energy value; wherein, the energy adjustment includes: increasing the energy or decreasing the energy;

[0062] The isotope generation system includes at least a target material;

[0063] The proton acceleration system is connected to the isotope generation system;

[0064] The isotope generation system is used to generate isotopes by reacting the proton beam of the second energy value with a target.

[0065] This specification also provides a control method for a proton acceleration system, used to control the proton acceleration system to accelerate a proton beam, the proton acceleration system comprising: a radio frequency quadrupole acceleration module and a drift tube linear acceleration module;

[0066] The method includes:

[0067] The radio frequency quadrupole acceleration module accelerates the proton beam, so that the energy of the proton beam reaches a first energy value;

[0068] The drift tube linear acceleration module adjusts the energy of the proton beam to a first energy value, so that the energy of the proton beam reaches a second energy value; wherein, adjusting the energy of the proton beam to the first energy value includes: increasing the energy or decreasing the energy.

[0069] In one embodiment, the drift tube linear acceleration module adjusts the energy of the proton beam to a first energy value, including:

[0070] The phase parameters and / or power parameters of the second power source in the drift tube linear acceleration module are adjusted to allow the drift tube linear acceleration module to adjust the energy of the proton beam to a first energy value.

[0071] Based on the proton acceleration system, neutron generation device, and isotope generation device provided in this specification, the proton acceleration system includes a radio frequency quadrupole acceleration module, which has at least a radio frequency quadrupole accelerator; and a drift tube linear acceleration module, which has at least a drift tube linear accelerator. Based on the above proton acceleration system, the proton beam can first be accelerated by the radio frequency quadrupole acceleration module to achieve a first energy value; then, the drift tube linear accelerator module further adjusts the energy of the proton beam at the first energy value to achieve a second energy value that meets requirements. This allows for adjustable proton beam energy output from the proton acceleration system, resulting in a proton beam with the required energy value. Consequently, it can be well adapted to various application scenarios such as neutron production and medical radioisotope acquisition, meeting diverse application needs. Attached Figure Description

[0072] To more clearly illustrate the embodiments of this specification, the accompanying drawings used in the embodiments will be briefly introduced below. The drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0073] Figure 1 This is a schematic diagram of the organizational structure of a proton acceleration system provided in one embodiment of this specification;

[0074] Figure 2 This is a schematic diagram of the organizational structure of a proton acceleration system provided in another embodiment of this specification;

[0075] Figure 3 This is a schematic diagram of the organizational structure of a proton acceleration system provided in another embodiment of this specification;

[0076] Figure 4 This is a schematic flowchart of a control method for a proton acceleration system provided in one embodiment of this specification;

[0077] Figure 5 This is a schematic diagram of the organizational structure of a neutron generating device provided in one embodiment of this specification;

[0078] Figure 6 This is a schematic diagram of the tissue structure of an isotope generation device provided in one embodiment of this specification;

[0079] Figure 7 This is a schematic diagram of the structural composition of a server provided in one embodiment of this specification;

[0080] Explanation of reference numerals in the attached figures: 1. Proton acceleration system; 11. Radio frequency quadrupole acceleration module; 12. Drift tube linear acceleration module; 13. Power source; 14. Low-energy transmission section; 15. Medium-energy transmission section; 16. High-energy transmission section; 17. First drift tube linear acceleration module; 18. Second drift tube linear acceleration module; 111. Radio frequency quadrupole accelerator; 112. First power source; 113. First waveguide assembly; 121. Drift tube linear accelerator; 122. Second power source; 123. Second waveguide assembly; 171. First drift tube linear accelerator; 181. Second drift tube linear accelerator; 2. Ion source; 3. Neutron generation system; 31. Neutron beam generation unit; 4. Isotope generation system; 41. Target device. Detailed Implementation

[0081] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this specification.

[0082] Given the limitations of existing proton accelerators in system design, most cannot support adjustment of the output proton beam energy. The energy of the proton beam produced by a proton accelerator is often fixed and cannot be adjusted according to actual needs. This means that a proton acceleration system is often only applicable to one or a limited number of application scenarios. If it needs to be applied to other scenarios, a completely new proton accelerator design is often required.

[0083] To address the aforementioned issues, this application considers that existing proton accelerators, due to their design not taking into account the energy-based interaction between the radio frequency quadrupole accelerator and the drift tube linear accelerator in the entire proton acceleration system, result in a proton acceleration system that cannot adequately support users in performing precise and effective energy adjustment operations.

[0084] Recognizing the root cause of the aforementioned problems, this application proposes a proton acceleration system. This system first accelerates the proton beam using a radio frequency quadrupole accelerator to achieve a basic first energy value. Then, a drift tube linear accelerator responds to an energy adjustment operation, adjusting the energy of the accelerated proton beam to achieve a final, satisfactory second energy value. This effectively enables adjustable proton beam energy output from the proton acceleration system, making it well-suited for different application scenarios and meeting diverse needs.

[0085] This application further considers that, in constructing a proton acceleration system, some optional embodiments, by selecting and using a radio frequency quadrupole accelerator and a drift tube linear accelerator whose upper limit of output velocity satisfies a preset numerical relationship, enable the drift tube linear accelerator in the proton acceleration system to support users to perform forward and / or reverse energy adjustment operations on the proton beam accelerated by the radio frequency quadrupole accelerator, thereby enabling the proton acceleration system to support the corresponding energy adjustment operations.

[0086] See Figure 1 As shown in the embodiment of this specification, a proton acceleration system 1 is provided, including: a radio frequency quadrupole acceleration module 11, having at least a radio frequency quadrupole accelerator 111; and a drift tube linear acceleration module 12, having at least a drift tube linear accelerator 121. The radio frequency quadrupole acceleration module 11 is used to accelerate the proton beam so that the energy of the proton beam reaches a first energy value; the drift tube linear acceleration module 12 is used to adjust the energy of the proton beam at the first energy value so that the energy of the proton beam reaches a second energy value; wherein, the energy adjustment includes: increasing the energy or decreasing the energy.

[0087] The upper limit of the output speed of the drift tube linear accelerator 121 and the upper limit of the output speed of the radio frequency quadrupole accelerator 111 satisfy a preset numerical relationship; the proton acceleration system 1 supports energy adjustment operation.

[0088] Specifically, in the proton acceleration system 1 described above, the output of the radio frequency quadrupole accelerator 111 can be connected to the input of the drift tube linear accelerator 121.

[0089] Accordingly, the aforementioned radio frequency quadrupole accelerator 111 can be used to accelerate the proton beam input to the radio frequency quadrupole accelerator 111, increase the energy of the proton beam, and enable the energy of the proton beam output by the radio frequency quadrupole accelerator 111 to reach a specified first energy value.

[0090] Specifically, the aforementioned drift tube linear accelerator 121 can be used to adjust the energy of the proton beam input to the drift tube linear accelerator 121 based on a first energy value, according to specific energy adjustment operations, such as increasing or decreasing the energy, so that the energy of the proton beam output through the drift tube linear accelerator 121 can reach a second energy value that meets the requirements of the current scenario (i.e., a second energy value that meets the requirements). For example, an energy value that can react with a corresponding target to produce F medical isotopes, or an energy value that can react with a corresponding target to produce neutrons, etc.

[0091] The aforementioned radio frequency quadrupole accelerator 111 (which can be abbreviated as RFQ or radio frequency quadrupole accelerator) can simultaneously achieve lateral focusing and longitudinal acceleration of particle beams using a high-frequency quadrupole electric field.

[0092] The aforementioned radio frequency quadrupole accelerator 111 may specifically include a four-wing type radio frequency quadrupole accelerator and a four-bar type radio frequency quadrupole accelerator. Of course, other radio frequency quadrupole accelerators known to those skilled in the art can also be used. The radio frequency quadrupole acceleration module 11 may also be equipped with a cooling module for cooling the radio frequency quadrupole accelerator 111.

[0093] The aforementioned drift tube linear accelerator 121 (which can be abbreviated as DTL) may specifically include: based on H 110 The drift tube linear accelerator of the model (which can be abbreviated as IHDTL), or based on H 210 The drift tube linear accelerator of the model (which may be abbreviated as CHDTL). Of course, other drift tube linear accelerators known to those skilled in the art may also be used.

[0094] Specifically, the drift tube linear module 12 may also be equipped with a cooling module for cooling the drift tube linear accelerator.

[0095] In this embodiment, based on experimental test results, CHDTL is preferred. This is because CHDTL employs a cross-shaped electrode rod design, eliminating the diode field component during the drift phase; furthermore, its room-temperature low-energy accelerating structure has a very high shunt impedance. It can operate well in continuous wave mode, resulting in better application performance.

[0096] Specifically, the upper limit of the output speed can be understood as the ratio of the upper limit of the output speed of particles such as protons after being processed by a radio frequency four-stage accelerator or a drift tube linear accelerator to the speed of light.

[0097] Specifically, for example, the upper limit of the output speed of a radio frequency quadrupole accelerator can be expressed as β. RFQ The upper limit of the output speed of a drift tube linear accelerator can be expressed as β. DTL .

[0098] In this embodiment, the upper limit of the output speed of the drift tube linear accelerator and the upper limit of the output speed of the radio frequency quadrupole accelerator satisfy a preset numerical relationship, which may include: the ratio of the upper limit of the output speed of the drift tube linear accelerator to the upper limit of the output speed of the radio frequency quadrupole accelerator is greater than or equal to 0.85 and less than or equal to 1.15.

[0099] Specifically, for example, based on experimental test results, the ratio of the upper limit of the output speed of the drift tube linear accelerator to the upper limit of the output speed of the radio frequency quadrupole accelerator can preferably be set to 1. This achieves a relatively optimal energy adjustment effect. Of course, depending on specific circumstances and usage requirements, this ratio can also be set to other values ​​such as 0.9 or 1.1.

[0100] It should be noted that by selectively choosing and using drift tube linear accelerators and radio frequency quadrupole accelerators whose upper limit of output speed meets a preset numerical relationship in the proton acceleration system, the drift tube linear accelerator and the radio frequency quadrupole accelerator can be matched. This allows the drift tube linear accelerator to effectively adjust the energy of the proton beam output from the radio frequency quadrupole accelerator based on the first energy value.

[0101] In this embodiment, the energy adjustment operation supported by the proton acceleration system may specifically include a positive energy adjustment operation (e.g., an operation to increase the energy value of a proton beam with a first energy value after acceleration by a radio frequency quadrupole accelerator) and / or a negative energy adjustment operation (e.g., an operation to decrease the energy value of a proton beam with a first energy value after acceleration by a radio frequency quadrupole accelerator).

[0102] Specifically, the aforementioned positive energy adjustment operation corresponds to an increase in the energy of the input proton beam in the drift tube linear accelerator. The aforementioned negative energy adjustment operation corresponds to a decrease in the energy of the input proton beam in the drift tube linear accelerator.

[0103] Correspondingly, the drift tube linear accelerator module 12 can respond to specific energy adjustment operations and adjust the energy of the proton beam input to the drift tube linear accelerator 121 in a matching manner through the drift tube linear accelerator 121, so that the energy of the proton beam output from the drift tube linear accelerator 121 reaches the required second energy value.

[0104] Specifically, the aforementioned energy adjustment operation can also be a continuous adjustment operation within the effective energy range related to the first energy value.

[0105] The specific effective energy range mentioned above can be determined based on the inherent phase difference between the drift tube linear accelerator and the radio frequency quadrupole accelerator, as well as other relevant equipment parameters.

[0106] Specifically, the aforementioned effective energy range can be an energy range that is symmetrical about the first energy value.

[0107] For example, if the first energy value is 2.3 MeV, the aforementioned effective energy range can be greater than or equal to (2.3 MeV - 0.2 MeV) and less than or equal to (2.3 MeV + 0.2 MeV). Based on this effective energy range, users can initiate an energy adjustment operation according to specific application scenarios and processing requirements. This allows the proton beam to be adjusted from its original 2.3 MeV to 2.2 MeV within the effective energy range, achieving the second energy value; or from its original 2.3 MeV to 2.4 MeV within the effective energy range, achieving the second energy value, etc.

[0108] In specific implementation, the energy adjustment operation may further include: adjusting the phase parameter of the power source, and / or adjusting the power parameter of the power source. The power source is used to provide electromagnetic waves to the drift tube linear accelerator. Specifically, the power parameters may be the voltage parameter and / or the current parameter of the power source.

[0109] Specifically, the aforementioned phase parameters can indicate the direction of energy adjustment operation.

[0110] For example, when the phase parameter is in the acceleration phase, the corresponding energy adjustment operation is a positive energy adjustment operation, with the adjustment direction being positive; the corresponding energy adjustment process is an energy increase process based on the first energy value. Conversely, when the phase parameter is in the deceleration phase, the corresponding energy adjustment operation is a negative energy adjustment operation, with the adjustment direction being negative; the corresponding energy adjustment process is an energy decrease process based on the first energy value.

[0111] The absolute value of the above power parameters can indicate the adjustment range of the energy adjustment operation.

[0112] For example, within the effective energy range, the larger the absolute value of the power parameter, the larger the adjustment range of the corresponding energy adjustment operation; correspondingly, the larger the absolute value of the difference between the second energy value and the first energy value after energy adjustment processing. Conversely, the smaller the absolute value of the power parameter, the smaller the adjustment range of the corresponding energy adjustment operation; correspondingly, the smaller the absolute value of the difference between the second energy value and the first energy value after energy adjustment processing.

[0113] In practice, specific energy adjustment operations can be performed by adjusting the phase and / or power parameters of the electromagnetic wave signal provided by the power source to the drift tube linear accelerator, in order to control the drift tube linear accelerator to perform corresponding energy adjustment processing on the input proton beam.

[0114] Based on the above-mentioned proton acceleration system, when users use the proton acceleration system to generate a proton beam, they can initiate corresponding energy adjustment operations on the drift tube linear acceleration module in the proton acceleration system. This allows the energy of the proton beam finally output by the proton acceleration system to be flexibly increased or decreased based on the initial energy value, making it convenient for users to adjust. In this way, it can better adapt to various different application scenarios and meet diverse scenario requirements.

[0115] In some embodiments, the upper limit of the output speed of the drift tube linear accelerator and the upper limit of the output speed of the radio frequency quadrupole accelerator satisfy a preset numerical relationship.

[0116] The upper limit of the output speed of the drift tube linear accelerator and the upper limit of the output speed of the radio frequency quadrupole accelerator satisfy a preset numerical relationship, including: the ratio of the upper limit of the output speed of the drift tube linear accelerator to the upper limit of the output speed of the radio frequency quadrupole accelerator is greater than or equal to 0.85 and less than or equal to 1.15.

[0117] In some embodiments, the drift tube linear accelerator includes H-based... 110 Drift tube linear accelerator of the model, or based on H 210 A drift tube linear accelerator in a certain pattern.

[0118] In some embodiments, see Figure 1 As shown, the proton acceleration system is also connected to ion source 2;

[0119] The ion source 2 is connected to the radio frequency quadrupole accelerator 111; the radio frequency quadrupole accelerator 111 is connected to the drift tube linear accelerator 121; the ion source 2 is used to generate a proton beam.

[0120] Specifically, the aforementioned ion source 2 can be an electron cyclotron resonance ion source (abbreviated as RCE) or a Penning source, etc. Of course, in specific implementations, other suitable types of ion sources can be used depending on the specific application scenario and processing requirements.

[0121] In addition to generating proton beams, the aforementioned ion sources can also generate other particle beams depending on the specific application scenario.

[0122] See Figure 1 As shown, the proton acceleration system 1 also includes a power source 13;

[0123] The power source 13 can be connected to the radio frequency quadrupole accelerator and the drift tube linear accelerator respectively; it is used to provide corresponding electromagnetic waves to the radio frequency quadrupole accelerator and the drift tube linear accelerator.

[0124] Specifically, the power source 13 can be a high-frequency power source. The operating frequency of this power source can be from tens to hundreds of MHz. For example, the operating frequency of the power source can be 162.5 MHz.

[0125] In addition to providing electromagnetic waves for the radio frequency quadrupole accelerator and the drift tube linear accelerator, the power source mentioned above can also power other devices and modules in the proton acceleration system 1.

[0126] In some embodiments, see Figure 2 As shown, the drift tube linear acceleration module 12 may further include: a second power source 122, used to provide electromagnetic waves to the drift tube linear accelerator 121;

[0127] Correspondingly, the drift tube linear acceleration module 12 supports energy adjustment operations;

[0128] The energy adjustment operation includes: adjusting the phase parameter of the second power source, and / or adjusting the power parameter of the second power source.

[0129] In some embodiments, the radio frequency quadrupole acceleration module 11 may further include: a first power source 112 and a first waveguide component 113; the drift tube linear acceleration module may further include: a second waveguide component 123.

[0130] The first power source 112 is connected to the radio frequency quadrupole accelerator 111 via the first waveguide assembly 113; the second power source 122 is connected to the drift tube linear accelerator 121 via the second waveguide assembly 123.

[0131] Correspondingly, the first power source 1112 provides electromagnetic waves to the radio frequency quadrupole accelerator 111 through the first waveguide component 113; the second power source 122 provides electromagnetic waves to the drift tube linear accelerator 121 through the second waveguide component 123.

[0132] Furthermore, the phase and frequency difference between the first electromagnetic wave signal acquired by the radio frequency quadrupole accelerator through the first waveguide component and the second electromagnetic wave signal acquired by the drift tube linear accelerator through the second waveguide component is less than a preset first difference threshold. This allows for better adjustment results during subsequent energy adjustments.

[0133] The first difference threshold can be determined based on the equipment parameters of the radio frequency quadrupole accelerator and the equipment parameters of the drift tube linear accelerator.

[0134] Specifically, the aforementioned first difference threshold can be a small data value close to 0, such as 0.01.

[0135] In some embodiments, the radio frequency quadrupole acceleration module may further include: a first waveguide component; the drift tube linear acceleration module may further include: a second waveguide component; the system may further include: a third power source;

[0136] The third power source is connected to the radio frequency quadrupole accelerator via the first waveguide assembly; the third power source is connected to the drift tube linear accelerator via the second waveguide assembly.

[0137] Correspondingly, the third power source provides electromagnetic waves to the radio frequency quadrupole accelerator through the first waveguide assembly; the third power source provides electromagnetic waves to the drift tube linear accelerator through the second waveguide.

[0138] In this way, the radio frequency quadrupole accelerator and the drift tube linear accelerator can share a power source; and the difference between the phase and frequency of the first electromagnetic wave signal obtained by the radio frequency quadrupole accelerator through the first waveguide component and the second electromagnetic wave signal obtained by the drift tube linear accelerator through the second waveguide component is less than a preset first difference threshold.

[0139] Based on the above approach, a higher degree of matching can be achieved between the radio frequency quadrupole accelerator and the drift tube linear accelerator in the proton acceleration system, so that energy adjustment can be performed more effectively and precisely through the drift tube linear accelerator.

[0140] In some embodiments, when performing energy adjustment operations on the drift tube linear accelerator module 12, the phase and / or energy of the second electromagnetic wave signal supplied to the drift tube linear accelerator 121 can be adjusted according to adjustment parameters by adjusting the output phase and / or output power parameters (e.g., output voltage, output current, etc.) of the second power source 122; the phase and / or energy of the second electromagnetic wave signal supplied to the drift tube linear accelerator 121 can also be adjusted according to adjustment parameters by adjusting the parameters of the second waveguide component 123; or the phase and / or energy of the second electromagnetic wave signal supplied to the drift tube linear accelerator 121 can be adjusted according to adjustment parameters by simultaneously adjusting the parameters of the second waveguide component 123 and the output phase and / or output power parameters of the second power source 122, thereby achieving relatively more diverse energy regulation.

[0141] In some embodiments, see Figure 1 As shown, the proton acceleration system may further include: a low-energy transmission segment 14 (which may be abbreviated as LEBT), a medium-energy transmission segment 15 (which may be abbreviated as MEBT), and a high-energy transmission segment 16 (which may be abbreviated as HEBT).

[0142] The low-energy transmission segment 14 is connected to the output end of the ion source 2 and the input end of the radio frequency quadrupole accelerator 111, respectively; the medium-energy transmission segment 15 is connected to the output end of the radio frequency quadrupole accelerator 111 and the input end of the drift tube linear accelerator 121, respectively; and the high-energy transmission segment 16 is connected to the output end of the drift tube linear accelerator 121.

[0143] The low-energy transmission section 14 is used to perform a first adjustment process on the proton beam output from the ion source.

[0144] The medium-energy transmission section 15 is used to perform a second adjustment process on the proton beam output from the radio frequency quadrupole accelerator.

[0145] The high-energy transmission section 16 is used to perform a third adjustment process on the proton beam output from the drift tube linear accelerator.

[0146] The low-energy transmission section 14 mentioned above includes at least a dual solenoid, such as a first solenoid and a second solenoid. Furthermore, the low-energy transmission section 14 may also include structures such as a first guide magnet and a second guide magnet. Specifically, the dual solenoid can be used for lateral matching.

[0147] Specifically, the aforementioned low-energy transmission segment 14 can be matched with the ion source 2 and the radio frequency quadrupole accelerator 111. Accordingly, in specific implementation, the low-energy transmission segment 14 can be used to transport the proton beam output from the ion source 2 to the radio frequency quadrupole accelerator 111. The first adjustment process is achieved by first adjusting the beam ellipse parameters of the proton beam, then adjusting the motion parameters of the proton beam along the horizontal axis and the vertical axis, and finally adjusting the beam ellipse parameters of the proton beam again, so as to obtain and output a proton beam suitable for access and processing by the radio frequency quadrupole accelerator 111.

[0148] The aforementioned medium-energy transmission segment 15 may include at least a quadrupole magnet. Furthermore, the aforementioned medium-energy transmission segment 15 may also include structures such as a beam gatherer. Considering that in some application scenarios, a quadrupole magnet can achieve the required beam gathering effect, the aforementioned medium-energy transmission segment 15 may also include only a quadrupole magnet.

[0149] Specifically, the aforementioned medium-energy transmission segment 15 can be matched with the radio frequency quadrupole accelerator 111 and the drift tube linear accelerator 121. Correspondingly, during the process of transporting the proton beam output from the radio frequency quadrupole accelerator 111 to the drift tube linear accelerator 121, the medium-energy transmission segment 15 can perform a second adjustment process on the proton beam to obtain and output a proton beam suitable for access and processing by the drift tube linear accelerator 121.

[0150] The high-energy transmission segment 16 mentioned above may include at least structures such as a quadrupole magnet and a deflecting magnet. The deflecting magnet can be used to deflect the proton beam to facilitate access and processing by downstream equipment (e.g., neutron production devices, medical isotope production devices, etc.).

[0151] The aforementioned high-energy transmission section 16 can be matched with the drift tube linear accelerator 121 and the next-stage equipment. Accordingly, during the process of transporting the proton beam output from the drift tube linear accelerator 121 to the next-stage equipment, the high-energy transmission section 16 can perform a third adjustment process to obtain and output a proton beam suitable for access and processing by the next-stage equipment.

[0152] In some embodiments, the aforementioned next-level device may specifically be a neutron capture application device (e.g., a treatment room device, a laboratory device, etc.). This neutron capture application device can generate a corresponding neutron beam using a proton beam and utilize this neutron beam to achieve specific applications such as boron neutron capture therapy for patients.

[0153] Specifically, the aforementioned neutron capture application device may include multiple neutron capture application devices, such as a first neutron capture application device, a second neutron capture application device, etc.

[0154] A beam switcher may also be installed at the location where the neutron capture application device connects to the high-energy transmission section. This beam switcher may include deflecting magnets, etc.

[0155] In practical implementation, for example, once the first neutron capture application device is ready, a beam switcher can be used to guide the proton beam to the first neutron capture application device to generate a neutron beam for corresponding application. Once the second neutron capture application device is ready, a beam switcher can be used to guide the proton beam to the second neutron capture application device to generate a neutron beam for corresponding application, thereby improving the overall application efficiency.

[0156] Furthermore, the spatial arrangement (e.g., angles) between the aforementioned different neutron capture application devices and the high-energy transmission segment can vary. For example, the irradiation direction of the first neutron capture application device can be horizontal, the irradiation direction of the second neutron capture application device can be vertical, and the irradiation direction of the third neutron capture application device can be perpendicular to the plane formed by the irradiation directions of the first and second neutron capture application devices. In this way, different seed capture application devices can be used to produce and use neutron beams based on different angles to better meet diverse scenario requirements.

[0157] Preferably, the above-mentioned neutron capture application device may specifically include: 3 treatment room devices and 1 laboratory device.

[0158] Specifically, the aforementioned treatment room device can be a treatment room device based on BNCT (Boron Neutron Capture Therapy).

[0159] By using deflecting magnets, the protons transmitted in the high-energy transmission section can be switched to four different beam directions based on application requirements. One beam is along the vertical plane, and the other three are along the horizontal plane. The three horizontal beams can be introduced into three corresponding treatment chamber devices for specific applications, while the one vertical beam can be introduced into a laboratory device for specific applications. Of course, in other embodiments, the treatment chamber devices and laboratory devices can also have other spatial layouts.

[0160] Specifically, two deflecting magnets can be installed at the connection point between the aforementioned laboratory device and the high-energy transmission section to prevent the neutron activation accelerator generated by the subsequent reaction of the proton beam with the target material. The angular parameters of the above three treatment chamber devices can be flexibly set according to the treatment layout in the specific application scenario.

[0161] Of course, it should be noted that in some cases, laboratory facilities may not be necessary. Also, the number of treatment room devices is not limited to three; an appropriate number can be set up based on the specific needs of the scenario.

[0162] In some embodiments, the effective energy range determined based on the inherent phase difference between the drift tube linear accelerator and the radio frequency quadrupole accelerator, as well as other relevant device parameters, can also be an energy range that is not symmetrical about the first energy value.

[0163] For example, the first energy value is 2.3 MeV. The energy range related to the first energy value can also be greater than or equal to (2.3 MeV + 0.2 MeV) and less than or equal to (2.3 MeV + 0.2 MeV + 0.2 MeV), etc. Based on the above effective energy range, users can initiate an energy adjustment operation according to specific application scenarios and processing requirements. This allows the proton beam to be adjusted from the original 2.3 MeV to 2.4 MeV within the effective energy range, reaching the second energy value; or from the original 2.3 MeV to 2.6 MeV within the effective energy range, reaching the second energy value, etc.

[0164] For example, if the first energy value is 2.3 MeV, the energy range related to the first energy value can also be less than or equal to (2.3 MeV - 0.2 MeV) and greater than or equal to (2.3 MeV - 0.2 MeV - 0.2 MeV), etc. Based on the above effective energy range, users can, according to specific application scenarios and processing requirements, initiate an energy adjustment operation to reduce the proton beam's energy from the original 2.3 MeV to 2.05 MeV within the effective energy range, thus achieving the second energy value; or, reduce it from the original 2.3 MeV to 1.95 MeV within the effective energy range, thus achieving the second energy value, etc.

[0165] In this case, the aforementioned proton acceleration system can support users to perform energy adjustment operations along an adjustment direction.

[0166] As can be seen from the above, the proton acceleration system provided in the embodiments of this specification, by using a radio frequency quadrupole accelerator and a drift tube linear accelerator whose upper limit of output speed meets a preset numerical relationship during the construction of the proton acceleration system, enables the drift tube linear accelerator module in the proton acceleration system to support forward and / or reverse energy adjustment operations. Furthermore, in specific use of the above-mentioned proton acceleration system, the proton beam can first be accelerated by the radio frequency quadrupole accelerator module to achieve a first energy value; then, the drift tube linear accelerator module responds to the energy adjustment operation to further adjust the energy of the accelerated proton beam based on the first energy value, so that the proton beam energy reaches a second energy value that meets the requirements. This allows for adjustable proton beam energy output by the proton acceleration system, obtaining a proton beam with a second energy value that meets the requirements, thus enabling better adaptation to different application scenarios such as neutron production and medical radioisotope acquisition, meeting diverse scenario requirements.

[0167] See Figure 3 As shown in the embodiments of this specification, another proton acceleration system 1 is also provided for accelerating a proton beam, including:

[0168] The radio frequency quadrupole acceleration module 11 has at least a radio frequency quadrupole accelerator 111;

[0169] The first drift tube linear acceleration module 17 has at least a first drift tube linear accelerator 171;

[0170] The second drift tube linear acceleration module 18 has at least a second drift tube linear accelerator 181;

[0171] The radio frequency quadrupole acceleration module 11 is used to accelerate the proton beam so that the energy of the proton beam reaches a first energy value.

[0172] The first drift tube linear acceleration module 17 is used to perform a first energy adjustment on the proton beam with a first energy value so that the energy of the proton beam reaches a second energy value.

[0173] The second drift tube linear acceleration module 18 is used to perform a second energy adjustment on the proton beam with the second energy value so that the energy of the proton beam reaches the third energy value.

[0174] The first energy adjustment and the second energy adjustment respectively include: increasing energy or decreasing energy.

[0175] The upper limit of the output speed of the first drift tube linear accelerator 171 and the upper limit of the output speed of the radio frequency quadrupole accelerator 111 satisfy a preset numerical relationship. The first drift tube linear accelerator module 17 and the second drift tube linear accelerator module 18 support energy adjustment operations. The first drift tube linear accelerator and the second drift tube linear accelerator satisfy a preset matching relationship.

[0176] In practice, depending on the specific application scenario and processing requirements, the first energy adjustment operation and the second energy adjustment operation can be the same operation or different operations.

[0177] Furthermore, when specifically performing energy adjustment processing on the proton beam, the aforementioned first energy adjustment operation and second energy adjustment operation can coexist, or only one of them can exist.

[0178] In practice, users can adjust the energy of the proton beam output by the proton acceleration system by adjusting only the second drift tube linear accelerator, only the first drift tube linear accelerator, or both the first and second drift tube linear accelerators, depending on the specific application scenario and processing requirements.

[0179] Based on the above-mentioned proton acceleration system, users can perform at least two energy adjustment operations on the proton beam in the proton acceleration system to achieve more precise and accurate energy adjustment processing of the proton beam and obtain a proton beam with the required energy.

[0180] In some embodiments, the upper limit of the output speed of the first drift tube linear accelerator and the upper limit of the output speed of the radio frequency quadrupole accelerator satisfy a preset numerical relationship, including: the ratio of the upper limit of the output speed of the first drift tube linear accelerator to the upper limit of the output speed of the radio frequency quadrupole accelerator is greater than or equal to 0.85 and less than or equal to 1.15.

[0181] In some embodiments, the first drift tube linear accelerator and the second drift tube linear accelerator satisfy a preset matching relationship, including: the difference between the device parameters of the first drift tube linear accelerator and the device parameters of the second drift tube linear accelerator is less than a preset second difference threshold.

[0182] Specifically, the first drift tube linear accelerator and the second drift tube linear accelerator mentioned above can be accelerators with the same equipment.

[0183] In this way, a matching second drift tube linear accelerator can be used to further adjust the energy of the proton beam output after processing by the first drift tube linear accelerator, based on the second energy value, so as to obtain a proton beam with an energy value reaching the third energy value that meets the requirements of the scenario.

[0184] In some embodiments, the first drift tube linear accelerator is based on H... 110 The drift tube linear accelerator of the mode, wherein the first drift tube linear accelerator is based on H 210 A drift tube linear accelerator in a certain pattern;

[0185] Alternatively, the first drift tube linear accelerator is based on H... 210 The drift tube linear accelerator of the mode, wherein the second drift tube linear accelerator is based on H 110 A drift tube linear accelerator in a certain pattern;

[0186] Alternatively, the first drift tube linear accelerator is based on H... 110 The drift tube linear accelerator of the mode, wherein the second drift tube linear accelerator is based on H 110 A drift tube linear accelerator in a certain pattern;

[0187] Alternatively, the first drift tube linear accelerator is based on H... 210 The drift tube linear accelerator of the mode, wherein the second drift tube linear accelerator is based on H 210 A drift tube linear accelerator in a certain pattern.

[0188] Based on the above embodiments, in specific implementation, the same or different types of drift tube linear accelerators can be combined as the first drift tube linear accelerator and the second drift tube linear accelerator in the proton acceleration system to meet specific processing requirements, facilitate users to perform more precise and targeted energy adjustment processing, and better adapt to diverse application scenarios.

[0189] In specific implementation, based on experimental test results, the preferred method can be based on H. 210 The drift tube linear accelerator of the mode serves as the first drift tube linear accelerator, while another H-based linear accelerator is used simultaneously. 210The drift tube linear accelerator in this mode serves as the second drift tube linear accelerator. The equipment parameters and upper limit of the output speed of the first drift tube linear accelerator can be the same as those of the second drift tube linear accelerator. This allows for a relatively effective combination of the first and second drift tube linear accelerators to achieve energy adjustment processing of the proton beam.

[0190] In some embodiments, the proton acceleration system may further include: a first power source for providing electromagnetic waves to the radio frequency quadrupole accelerator; a second power source for providing electromagnetic waves to the first drift tube linear accelerator; and a third power source for providing electromagnetic waves to the second drift tube linear accelerator; wherein the electromagnetic wave parameters provided by the second power source are different from those provided by the third power source.

[0191] In some cases, depending on specific requirements, the electromagnetic wave parameters provided by the second power source and the electromagnetic wave parameters provided by the third power source may be the same.

[0192] In some embodiments, the proton acceleration system further includes a third drift tube linear accelerator; wherein the third drift tube linear accelerator is connected to the second drift tube linear accelerator;

[0193] The third drift tube linear accelerator is used to respond to the third energy adjustment operation and perform corresponding third energy adjustment processing on the adjusted proton beam so that the energy of the proton beam reaches the fourth energy value.

[0194] Specifically, for example, the first drift tube linear accelerator, the second drift tube linear accelerator, and the third drift tube linear accelerator can be matched CHDTL, CHDTL, and IHDTL, respectively.

[0195] In practice, depending on the specific application scenario and processing requirements, more drift tube linear accelerators, such as the fourth drift tube linear accelerator and the fifth drift tube linear accelerator, can be introduced and connected in a similar manner on the basis of the third drift tube linear accelerator.

[0196] In this way, the proton acceleration system described above can be used to perform relatively more complex and precise energy adjustment processing on the proton beam to meet diverse scenario requirements.

[0197] See Figure 4 As shown, based on the above-described proton acceleration system, this specification also provides a control method for the proton acceleration system, used to control the proton acceleration system to accelerate a proton beam. The proton acceleration system includes: a radio frequency quadrupole acceleration module and a drift tube linear acceleration module; the method, in specific implementation, may include the following:

[0198] S401: The radio frequency quadrupole acceleration module accelerates the proton beam so that the energy of the proton beam reaches a first energy value;

[0199] S402: The drift tube linear acceleration module adjusts the energy of the proton beam to a first energy value, so that the energy of the proton beam reaches a second energy value; wherein, adjusting the energy of the proton beam to a first energy value includes: increasing the energy or decreasing the energy.

[0200] The aforementioned radio frequency quadrupole acceleration module has at least a radio frequency quadrupole accelerator; the aforementioned drift tube linear acceleration module has at least a drift tube linear accelerator.

[0201] In some embodiments, the drift tube linear acceleration module may further include a second power source; the radio frequency quadrupole acceleration module may further include a first power source.

[0202] Specifically, the second power source can be connected to the drift tube linear accelerator via the second waveguide assembly. The first power source can also be connected to the radio frequency quadrupole accelerator via the first waveguide assembly.

[0203] In some embodiments, the drift tube linear acceleration module adjusts the energy of the proton beam at a first energy value, which may specifically include:

[0204] According to the adjustment parameters, the phase parameters and / or power parameters of the second power source in the drift tube linear acceleration module are adjusted to adjust the energy of the proton beam to the first energy value.

[0205] In some embodiments, the drift tube linear acceleration module may specifically include one drift tube linear acceleration module or multiple drift tube linear acceleration modules.

[0206] In practice, users can determine the adjustment direction for the energy adjustment of the proton beam output from the proton acceleration system based on specific scenario requirements. The phase adjustment parameters are then determined based on the adjustment direction. Simultaneously, the adjustment range for the energy adjustment of the proton beam output from the proton acceleration system can also be determined based on specific scenario requirements. The specific values ​​of the phase adjustment parameters and / or voltage adjustment parameters are further determined based on the adjustment range.

[0207] In practice, users can adjust the energy of the proton beam accelerated by the radio frequency quadrupole accelerator by adjusting one or more drift tube linear acceleration modules in the proton acceleration system according to the adjustment parameters, so as to obtain a proton beam with the required energy value.

[0208] Based on the above embodiments, users can conveniently and efficiently adjust the energy of proton beams using the proton acceleration system to meet diverse scenario requirements.

[0209] See Figure 5 As shown in the embodiments of this specification, a neutron generating device is also provided, which includes at least a proton acceleration system 1 and a neutron generating system 3;

[0210] The proton acceleration system 1, used to accelerate a proton beam, includes:

[0211] The radio frequency quadrupole acceleration module 11 includes at least a radio frequency quadrupole accelerator 111.

[0212] The drift tube linear acceleration module 12 has at least a drift tube linear accelerator 121;

[0213] The radio frequency quadrupole acceleration module 11 is used to accelerate the proton beam so that the energy of the proton beam reaches a first energy value.

[0214] The drift tube linear acceleration module 12 is used to adjust the energy of the proton beam at the first energy value so that the energy of the proton beam reaches the second energy value; wherein, the energy adjustment includes: increasing the energy or decreasing the energy;

[0215] The neutron generation system 3 includes at least a target material;

[0216] The proton acceleration system 1 is connected to the neutron generation system 3;

[0217] The neutron generation system 3 is used to generate a neutron beam by reacting the proton beam of the second energy value with the target material.

[0218] The neutron generation system 3 is also used to extract the neutron beam.

[0219] Specifically, the drift tube linear acceleration module 12 may include one drift tube linear acceleration module or multiple drift tube linear acceleration modules connected in series.

[0220] Specifically, the neutron generation system 3 mentioned above includes at least a neutron beam generation unit 31. The neutron beam generation unit 31 is provided with at least a target material.

[0221] Specifically, the target material can be selected from one or more combinations of solid lithium metal, liquid lithium metal, lithium compounds, and beryllium metal.

[0222] The neutron beam generating unit 31 can be connected to the proton acceleration system 1 via the high-energy transmission section 16. Correspondingly, the proton beam generated by the proton acceleration system 1 can be transmitted to the neutron beam generating unit 31 via the high-energy transmission section 16.

[0223] In some embodiments, the neutron beam generating unit 31 may further include a beam shaper, which is used to adjust the beam quality of the neutron beam generated when the proton beam attacks the target. The beam shaper has a receiving cavity for accommodating the beam transmission pipe and a beam outlet. One end of the beam transmission pipe is provided with the target, and the other end is connected to the high-energy transmission section 16. The proton beam output by the proton acceleration system is introduced into the target to react by bombarding the target and generate a corresponding neutron beam that is emitted from the beam outlet.

[0224] In some embodiments, the beam shaper may further include structures such as reflectors, decelerators, thermal neutron absorbers, and shields.

[0225] Because the energy spectrum of neutrons produced by proton beams attacking a target is broad, in addition to producing the desired hyperthermal neutrons, other types of neutrons or photons that are unwanted or even harmful will also be produced.

[0226] Using the beam shaper with the above structure allows the neutron beam generated by the proton beam bombarding the target material to first pass through a retarder, adjusting the energy of fast neutrons in the neutron beam to the energy range of ultrathermal neutrons; and minimizing the number of thermal neutrons. Specifically, the retarder can be made of at least one of the following materials: D2O, AlF3, Fluental, CaF2, Li2CO3, MgF2, and Al2O3.

[0227] The aforementioned reflector surrounds the retarder, which can reflect neutrons that diffuse through the retarder back into the neutron beam, thereby improving neutron utilization. Specifically, the reflector can be made of at least one of materials such as Pb or Ni.

[0228] A thermal neutron absorber is disposed behind the aforementioned slowing body. The thermal neutron absorber is used to absorb thermal neutrons passing through the slowing body, thereby reducing the thermal neutron content in the neutron beam. Specifically, the thermal neutron absorber can be made of Li-6.

[0229] The aforementioned shielding structure surrounds the neutron beam exit and is positioned behind the reflector to block neutrons and photons from leaking out from outside the neutron beam exit. Specifically, the shielding structure can be made of photon-shielding material (e.g., Pb) and neutron-shielding material (e.g., PE).

[0230] In some embodiments, the neutron beam generating unit 31 may also be provided with a cooling module for cooling the neutron beam generating unit 31.

[0231] In some embodiments, the beam outlet is located in the irradiation chamber and may also be connected to a collimator for calibrating the beam direction of the neutron beam. Neutron capture therapy can be performed using the neutron beam in the irradiation chamber.

[0232] In other alternative embodiments, the neutron generation system 3 may have multiple neutron generation units, each of which is provided with an irradiation chamber, and the multiple neutron generation units are connected to the high-energy transmission section through multiple beam transmission pipes.

[0233] In some embodiments, a beam direction switcher may also be provided at the intersection of the plurality of beam transmission channels. Accordingly, the proton beam can be controlled to enter the corresponding beam transmission channel by controlling the beam direction switcher.

[0234] Based on the above embodiments, the neutron generation device is used to adjust the energy of the proton beam output by the proton acceleration system; then, the neutron generation system produces a matching neutron beam based on the energy-adjusted proton beam to meet diverse scenario requirements.

[0235] See Figure 6 As shown in the embodiments of this specification, an isotope generation device is also provided, which includes at least a proton acceleration system 1 and an isotope generation system 4.

[0236] The proton acceleration system 1, used to accelerate a proton beam, includes:

[0237] The radio frequency quadrupole acceleration module 11 includes at least a radio frequency quadrupole accelerator 111.

[0238] The drift tube linear acceleration module 12 has at least a drift tube linear accelerator 121;

[0239] The radio frequency quadrupole acceleration module 11 is used to accelerate the proton beam so that the energy of the proton beam reaches a first energy value.

[0240] The drift tube linear acceleration module 12 is used to adjust the energy of the proton beam at the first energy value so that the energy of the proton beam reaches the second energy value; wherein, the energy adjustment includes: increasing the energy or decreasing the energy;

[0241] The isotope generation system 4 includes at least a target material;

[0242] The proton acceleration system 1 is connected to the isotope generation system 4;

[0243] The isotope generation system 4 is used to generate isotopes by reacting the proton beam of the second energy value with the target material.

[0244] In some embodiments, the drift tube linear accelerator 121 described above may preferably include a combination of a CHDTL and an IHDTL.

[0245] The aforementioned isotope generation system 4 includes at least a target device 41. The aforementioned target device 41 is provided with at least a target material.

[0246] Using the proton acceleration system 1 described above, a proton beam with an energy value of 3.6 MeV can be obtained and output. Then, the isotope production system 4 can use the proton beam to bombard a target to produce a variety of medical isotopes such as F, C, and O.

[0247] Based on the above embodiments, the isotope generation device is used to adjust the energy of the proton beam output by the proton acceleration system; then, the isotope generation system produces matching isotopes based on the energy-adjusted proton beam to meet diverse scenario requirements.

[0248] This specification provides an embodiment of a server, see below. Figure 7 As shown. The server includes a network communication port 701, a processor 702, and a memory 703. These structures are connected by internal cables so that they can perform specific data interaction.

[0249] Specifically, the network communication port 701 can be used to receive energy adjustment operations;

[0250] The processor 702 can specifically be used to respond to energy adjustment operations, control and execute the following steps: the radio frequency quadrupole acceleration module accelerates the proton beam so that the energy of the proton beam reaches a first energy value; the drift tube linear acceleration module adjusts the energy of the proton beam at the first energy value so that the energy of the proton beam reaches a second energy value; wherein, the energy adjustment includes: increasing the energy or decreasing the energy.

[0251] The memory 703 can be used to store the corresponding instruction program and cache the adjustment parameters generated in the middle.

[0252] Based on the above method, the relevant structural performance of the server can be effectively utilized to improve the data processing speed of electronic devices and efficiently realize the control data processing of the proton acceleration system.

[0253] In this embodiment, the network communication port 701 can be a virtual port bound to different communication protocols, thereby enabling the sending or receiving of different data. For example, the network communication port can be a port responsible for web data communication, a port responsible for FTP data communication, or a port responsible for email data communication. Furthermore, the network communication port can also be a physical communication interface or communication chip. For example, it can be a wireless mobile network communication chip, such as GSM or CDMA; it can also be a Wi-Fi chip; or it can be a Bluetooth chip.

[0254] In this embodiment, the processor 702 can be implemented in any suitable manner. For example, the processor can take the form of a microprocessor or processor and a computer-readable medium storing computer-readable program code (e.g., software or firmware) executable by the (micro)processor, logic gates, switches, application-specific integrated circuits (ASICs), programmable logic controllers, and embedded microcontrollers, etc. This specification is not limiting.

[0255] In this embodiment, the memory 703 may include multiple layers. In a digital system, anything that can store binary data can be a memory. In an integrated circuit, a circuit with storage function but no physical form is also called a memory, such as RAM, FIFO, etc. In a system, a storage device with a physical form is also called a memory, such as a memory stick, TF card, etc.

[0256] This specification also provides a computer-readable storage medium based on the control method of the above-described proton acceleration system. The computer-readable storage medium stores computer program instructions that, when executed, implement the following steps: the radio frequency quadrupole acceleration module accelerates the proton beam to achieve a first energy value; the drift tube linear acceleration module adjusts the energy of the proton beam at the first energy value to achieve a second energy value; wherein, the energy adjustment includes increasing or decreasing the energy.

[0257] In this embodiment, the storage medium includes, but is not limited to, Random Access Memory (RAM), Read-Only Memory (ROM), cache, hard disk drive (HDD), or memory card. The memory can be used to store computer program instructions. The network communication unit can be an interface configured according to standards specified in the communication protocol for network connection communication.

[0258] In this embodiment, the specific functions and effects implemented by the program instructions stored in the computer-readable storage medium can be explained in comparison with other embodiments, and will not be repeated here.

[0259] This specification also provides a computer program product, which includes at least a computer program. When the computer program is executed by a processor, it implements the following method steps: the radio frequency quadrupole acceleration module accelerates the proton beam so that the energy of the proton beam reaches a first energy value; the drift tube linear acceleration module adjusts the energy of the proton beam at the first energy value so that the energy of the proton beam reaches a second energy value; wherein, the energy adjustment includes: increasing the energy or decreasing the energy.

[0260] It should be noted that the units, devices, or modules described in the above embodiments can be implemented by computer chips or physical entities, or by products with certain functions. For ease of description, the above devices are described by dividing them into various modules according to their functions. Of course, in implementing this specification, the functions of each module can be implemented in one or more software and / or hardware, or the module that implements the same function can be implemented by a combination of multiple sub-modules or sub-units, etc. The device embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and there may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection between the devices or units shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be electrical, mechanical, or other forms.

[0261] While this specification provides the steps of operation for the methods described in the embodiments or flowcharts, more or fewer steps may be included based on conventional or non-inventive means. The order of steps listed in the embodiments is merely one possible order of execution among many steps and does not represent the only possible order. In actual device or client product execution, the methods shown in the embodiments or drawings may be executed sequentially or in parallel (e.g., in a parallel processor or multi-threaded processing environment, or even a distributed data processing environment). The terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, product, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, product, or apparatus. Without further limitations, the presence of other identical or equivalent elements in a process, method, product, or apparatus that includes said elements is not excluded. The terms "first," "second," etc., are used to denote names and do not indicate any particular order.

[0262] Those skilled in the art will also know that, besides implementing the controller using purely computer-readable program code, the same functions can be achieved by logically programming the method steps, making the controller function as logic gates, switches, application-specific integrated circuits (ASICs), programmable logic controllers (PLCs), and embedded microcontrollers. Therefore, such a controller can be considered a hardware component, and the devices within it used to implement various functions can also be considered structures within that hardware component. Alternatively, the devices used to implement various functions can be considered as both software modules implementing the method and structures within a hardware component.

[0263] This specification can be described in the general context of computer-executable instructions that are executed by a computer, such as program modules. Generally, program modules include routines, programs, objects, components, data structures, classes, etc., that perform a specific task or implement a specific abstract data type. This specification can also be practiced in distributed computing environments, where tasks are performed by remote processing devices connected via a communication network. In distributed computing environments, program modules can reside in local and remote computer-readable storage media, including storage devices.

[0264] Although this specification has been described by way of examples, those skilled in the art will recognize that many variations and modifications are possible without departing from the spirit of this specification, and it is intended that the appended claims cover such variations and modifications without departing from the spirit of this specification.

Claims

1. A proton acceleration system for accelerating a proton beam, characterized in that, include: A radio frequency quadrupole acceleration module, which has at least a radio frequency quadrupole accelerator; A drift tube linear accelerator module, which at least includes a drift tube linear accelerator; The radio frequency quadrupole acceleration module is used to accelerate the proton beam so that the energy of the proton beam reaches a first energy value. The drift tube linear acceleration module is used to adjust the energy of the proton beam at a first energy value so that the energy of the proton beam reaches a second energy value; wherein, the energy adjustment includes: increasing the energy or decreasing the energy.

2. The proton acceleration system according to claim 1, characterized in that, The upper limit of the output speed of the drift tube linear accelerator and the upper limit of the output speed of the radio frequency quadrupole accelerator satisfy a preset numerical relationship. The upper limit of the output speed of the drift tube linear accelerator and the upper limit of the output speed of the radio frequency quadrupole accelerator satisfy a preset numerical relationship, including: the ratio of the upper limit of the output speed of the drift tube linear accelerator to the upper limit of the output speed of the radio frequency quadrupole accelerator is greater than or equal to 0.85 and less than or equal to 1.

15.

3. The proton acceleration system according to claim 1, characterized in that, The drift tube linear accelerator includes H-based... 110 Drift tube linear accelerator of the model, or based on H 210 A drift tube linear accelerator in a certain pattern.

4. The proton acceleration system according to claim 1, characterized in that, The drift tube linear acceleration module further includes: a second power source for providing electromagnetic waves to the drift tube linear accelerator; wherein the energy adjustment operation includes: adjusting the phase parameter of the second power source, and / or adjusting the power parameter of the second power source; The radio frequency quadrupole acceleration module further includes: a first power source and a first waveguide assembly; the drift tube linear acceleration module further includes: a second waveguide assembly; wherein, the first power source is connected to the radio frequency quadrupole accelerator through the first waveguide assembly; the second power source is connected to the drift tube linear accelerator through the second waveguide assembly; the first power source provides electromagnetic waves to the radio frequency quadrupole accelerator through the first waveguide assembly; the second power source provides electromagnetic waves to the drift tube linear accelerator through the second waveguide assembly.

5. The proton acceleration system according to claim 1, characterized in that, The radio frequency quadrupole acceleration module further includes: a first waveguide assembly; the drift tube linear acceleration module further includes: a second waveguide assembly; the system further includes: a third power source; The third power source is connected to the radio frequency quadrupole accelerator via the first waveguide assembly; the third power source is connected to the drift tube linear accelerator via the second waveguide assembly. The third power source provides electromagnetic waves to the radio frequency quadrupole accelerator through the first waveguide assembly; the third power source provides electromagnetic waves to the drift tube linear accelerator through the second waveguide.

6. A proton acceleration system for accelerating a proton beam, characterized in that, include: A radio frequency quadrupole acceleration module, which has at least a radio frequency quadrupole accelerator; The first drift tube linear acceleration module has at least a first drift tube linear accelerator; The second drift tube linear acceleration module has at least a second drift tube linear accelerator; The radio frequency quadrupole acceleration module is used to accelerate the proton beam so that the energy of the proton beam reaches a first energy value. The first drift tube linear acceleration module is used to perform a first energy adjustment on the proton beam with a first energy value so that the energy of the proton beam reaches a second energy value; The second drift tube linear acceleration module is used to perform a second energy adjustment on the proton beam with the second energy value so that the energy of the proton beam reaches the third energy value; The first energy adjustment and the second energy adjustment respectively include: increasing energy or decreasing energy.

7. The proton acceleration system according to claim 6, characterized in that, The upper limit of the output speed of the first drift tube linear accelerator and the upper limit of the output speed of the radio frequency quadrupole accelerator satisfy a preset numerical relationship; Wherein, the upper limit of the output speed of the first drift tube linear accelerator and the upper limit of the output speed of the radio frequency quadrupole accelerator satisfy a preset numerical relationship, including: the ratio of the upper limit of the output speed of the first drift tube linear accelerator to the upper limit of the output speed of the radio frequency quadrupole accelerator is greater than or equal to 0.85 and less than or equal to 1.

15.

8. The proton acceleration system according to claim 7, characterized in that, The upper limit of the output speed of the first drift tube linear accelerator and the upper limit of the output speed of the second drift tube linear accelerator satisfy a preset matching relationship; Wherein, the upper limit of the output speed of the first drift tube linear accelerator and the upper limit of the output speed of the second drift tube linear accelerator satisfy a preset matching relationship, including: the upper limit of the output speed of the first drift tube linear accelerator is equal to the upper limit of the output speed of the radio frequency quadrupole accelerator.

9. A neutron generating device for generating a neutron beam, characterized in that, It includes at least a proton acceleration system and a neutron production system; The proton acceleration system, used to accelerate a proton beam, includes: A radio frequency quadrupole acceleration module, having at least a radio frequency quadrupole accelerator, A drift tube linear accelerator module, which at least includes a drift tube linear accelerator; The radio frequency quadrupole acceleration module is used to accelerate the proton beam so that the energy of the proton beam reaches a first energy value. The drift tube linear acceleration module is used to adjust the energy of the proton beam at a first energy value so that the energy of the proton beam reaches a second energy value; wherein, the energy adjustment includes: increasing the energy or decreasing the energy; The neutron generation system includes at least a target material; The proton acceleration system is connected to the neutron generation system; The neutron generation system is used to generate a neutron beam by reacting the proton beam of the second energy value with a target material.

10. An isotope generating apparatus for generating isotopes, characterized in that, It includes at least a proton acceleration system and an isotope production system; The proton acceleration system, used to accelerate a proton beam, includes: A radio frequency quadrupole acceleration module, having at least a radio frequency quadrupole accelerator, A drift tube linear accelerator module, which at least includes a drift tube linear accelerator; The radio frequency quadrupole acceleration module is used to accelerate the proton beam so that the energy of the proton beam reaches a first energy value. The drift tube linear acceleration module is used to adjust the energy of the proton beam at a first energy value so that the energy of the proton beam reaches a second energy value; wherein, the energy adjustment includes: increasing the energy or decreasing the energy; The isotope generation system includes at least a target material; The proton acceleration system is connected to the isotope generation system; The isotope generation system is used to generate isotopes by reacting the proton beam of the second energy value with a target.

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