A broadband hybrid ion beam irradiation apparatus and method

Abstract

The present application relates to a kind of broadband mixed ion beam irradiation device, comprising: cocktail beam generation and preaccelerator, for generating mixed cocktail beam flow, and the mixed cocktail beam flow is accelerated;Energy modulator, the mixed cocktail beam flow from the generation and preaccelerator of cocktail beam is modulated;Beam transport line, receive the mixed cocktail beam flow modulated by energy modulator;And high frequency controller, the voltage and phase of the cavity of energy modulator are uniformly adjusted step by step, change cavity acceleration gradient, to carry out periodic energy modulation to mixed cocktail beam flow.It also relates to a kind of broadband mixed ion beam irradiation method, compared with prior art, can provide more extensive irradiation conditions.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of accelerators and high-frequency control, and particularly to a broadband mixed ion beam irradiation device and method for longitudinal irradiation damage of nuclear energy materials in multi-point variable energy irradiation. BACKGROUND

[0002] Generally, conventional ion beam linear accelerator technology mainly focuses on improving beam intensity, optimizing beam shape, and stabilizing beam supply mode. In terms of innovation in beam supply mode, it is no longer limited to traditional single-beam irradiation technology, but has developed into mixed ion beams, especially "cocktail beams" that can simultaneously transmit and accelerate multiple ions. This technology provides a powerful means for nuclear energy material irradiation research. Through cocktail beams, researchers can not only explore the mixed irradiation effects of multiple ions inside nuclear energy materials, but also can adjust the energy of different ions to make them accumulate to the same depth inside the material, thereby forming a transverse synergistic irradiation damage effect in that depth range.

[0003] However, the actual service environment of nuclear energy materials is extremely complex, and the damage to the materials is not limited to the transverse (same depth) level, but also involves cumulative damage in the longitudinal (different depth) level. Research on the transverse level mainly focuses on the micro-mechanism of irradiation damage, while longitudinal damage is closely related to changes in the mechanical properties of the material. Existing mixed ion irradiation technology mostly focuses on single-energy ion beam irradiation, or adjusting the energy of a few ions to achieve the same penetration depth. This approach has significant limitations in simulating longitudinal cumulative damage and is difficult to accurately simulate the real damage behavior of nuclear energy materials in complex service environments. At the same time, existing single-ion beam continuous variable energy irradiation technology usually uses an energy modulator installed in front of the target to achieve this. It adjusts the energy of the beam by using aluminum foils of different thicknesses. When the aluminum foils rotate at a uniform speed with the rotator, the beam energy gradually decreases. However, this method has two key problems: first, the energy accuracy of the aluminum foil energy reduction is difficult to guarantee, which may cause uneven energy; second, the cooling system of the energy modulator is complex to design and difficult to cope with the heat dissipation problem caused by high beam intensity, so it can only be used for experiments with weak flow, which significantly prolongs the irradiation experiment time and affects the experimental efficiency and result reliability.

[0004] Therefore, there is an urgent need for a more advanced multi-point energy modulation technology suitable for strong flow mixed ion beams, which can achieve broadband continuous energy irradiation inside the material. This will provide a more realistic and diverse experimental environment for material damage under complex service conditions, thereby more comprehensively studying the effects of irradiation behavior on material performance and providing reliable data support for the design and optimization of future nuclear energy materials. SUMMARY

[0005] In view of the above problems, the present application aims to provide a multi-ion beam irradiation technology capable of continuously varying energy.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0007] A broadband mixed ion beam irradiation device comprises:

[0008] A cocktail beam generation and pre-accelerator is configured to generate a mixed cocktail beam current and accelerate the mixed cocktail beam current.

[0009] An energy modulator is configured to modulate the mixed cocktail beam current from the cocktail beam generation and pre-accelerator.

[0010] A beam transport line is configured to receive the mixed cocktail beam current modulated by the energy modulator.

[0011] A high-frequency controller is configured to stepwise and uniformly adjust the voltage and phase of the cavity of the energy modulator, change the cavity acceleration gradient, and periodically modulate the energy of the mixed cocktail beam current.

[0012] Preferably, the mixed cocktail beam current is continuously varied in energy by the energy modulator in the energy range of 0.3 MeV / u to 1.0 MeV / u, and the energy is uniformly stepwise modulated for 20 to 30 times.

[0013] Preferably, the high-frequency controller is configured to simulate and automatically optimize the control of the mixed cocktail beam current by using synchronization and virtual accelerator technology to realize real-time feedback regulation.

[0014] Preferably, the broadband mixed ion beam irradiation device further comprises a beam energy calibrator and a timer, and the high-frequency controller receives parameters from the timer and the beam energy calibrator to real-time control the energy modulator.

[0015] Preferably, the timer is configured to synchronize the high-frequency controller and the quadrupole magnet power supply in the beam transport line for control, wherein the control accuracy of the high-frequency controller is 0.1 kilowatt and 0.1 degree, and the control accuracy of the quadrupole magnet power supply is 0.01 ampere.

[0016] A broadband mixed ion beam irradiation method comprises:

[0017] Generating a mixed cocktail beam current by a cocktail beam generation and pre-accelerator and accelerating the mixed cocktail beam current.

[0018] Modulating the mixed cocktail beam current from the cocktail beam generation and pre-accelerator by an energy modulator.

[0019] The voltage and phase of the cavity of the energy modulator are adjusted uniformly step by step by the high-frequency controller to change the cavity acceleration gradient to periodically perform energy modulation on the mixed cocktail beam.

[0020] Preferably, whether the minimum energy point is reached is determined by the high-frequency controller, if not, the next energy point is stepped, then the cavity operating parameters are adjusted, and whether the energy is accurate is determined, if yes, the record is made in the database, if not, the adjustment of the cavity operating parameters is returned to continue until the energy is accurate.

[0021] Preferably, the negative feedback step is further included, which comprises:

[0022] The beam energy of the mixed cocktail beam is set, and the beam energy is step-modulated;

[0023] The magnetic rigidity of the mixed cocktail beam is calculated, and converted into the magnet current to perform the magnet modulation of the mixed cocktail beam.

[0024] Preferably, the negative feedback step comprises:

[0025] The beam energy of the mixed cocktail beam is set, and the beam energy is step-modulated; and

[0026] The modulation parameters of the high-frequency controller are determined to perform energy modulation to realize the measurement and correction of the beam energy of the mixed cocktail beam.

[0027] The present application has the following advantages due to the above technical solutions:

[0028] Compared with the prior art, the present application can provide more extensive irradiation conditions, and can particularly use the mixed ion beam to form an irradiation damage longitudinal plane in the material to study the synergistic effect of the mixed ions in the material from the longitudinal angle. BRIEF DESCRIPTION OF DRAWINGS

[0029] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments, and are not intended to limit the scope of the present application. Throughout the drawings, the same reference designates the same elements. In the drawings:

[0030] Figure 1 is a structure schematic diagram of a broadband mixed ion beam irradiation device according to an embodiment of the present application;

[0031] Figure 2 is a flow schematic diagram of a broadband mixed ion beam irradiation method according to an embodiment of the present application; and

[0032] Figure 3FIG. 1 is a schematic diagram of a negative feedback control process in a broadband mixed ion beam irradiation method according to an embodiment of the present application.

[0033] The various marks in the drawings represent the following:

[0034] 1: cocktail beam generation and pre-accelerator

[0035] 2: energy modulator

[0036] 3: beam energy calibrator

[0037] 4: beam transport line

[0038] 5: timer

[0039] 6: high frequency controller

[0040] 7: database

[0041] S1: cocktail beam generation

[0042] S2: cocktail beam transport and pre-acceleration

[0043] S3: determination of variable energy range and step size

[0044] S4: setting of maximum energy point

[0045] S5: determination of whether minimum energy point has been reached

[0046] S6: no progress to next energy point

[0047] S7: database extraction

[0048] S8: start of step modulation according to database parameters

[0049] S9: adjustment of cavity operating parameters

[0050] S10: determination of whether energy is accurate

[0051] S11: database recording

[0052] S12: setting of beam energy

[0053] S13: energy step modulation

[0054] S14: calculation of beam magnetic rigidity

[0055] S15: conversion of magnet current

[0056] S16: beam line magnet modulation

[0057] S17: determination of high frequency control system modulation parameters

[0058] S18: energy modulation

[0059] S19: Energy measurement and correction DETAILED DESCRIPTION

[0060] Example embodiments of the present application will be described more fully hereinafter with reference to the accompanying drawings. While example embodiments of the present application are described herein, the present application can be embodied in various forms without being limited to the example embodiments set forth herein. Rather, these example embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the present application to those skilled in the art. In the drawings, like reference numerals refer to like elements throughout.

[0061] The following detailed description is provided to help the reader understand the method, apparatus and / or system described herein. However, various changes, modifications and equivalents can be resorted to by those skilled in the art without departing from the disclosure. For example, the order in which the operations are described is merely exemplary and the operations can be changed, except where such changes would render the disclosure unrecognizable. In addition, features described herein can be omitted for the sake of brevity and clarity.

[0062] The features described herein can be implemented in different forms and should not be construed as limited to the examples described herein. Rather, these examples are provided so that this disclosure will be thorough and complete, and fully convey the scope of the method, apparatus and / or system described herein to those skilled in the art. Further, the described examples are to be considered in a sense relative to the disclosure.

[0063] Throughout the specification, when an element is described as being "on," "connected to," or "coupled to" another element, it can be directly on, connected or coupled to the other element, or one or more other elements can be interposed therebetween. Conversely, when an element is described as being "directly on," "directly connected to," or "directly coupled to" another element, then there are no other elements interposed therebetween.

[0064] As used herein, the phrase "and / or" includes any one of the associated listed items, as well as any combination of any two or more of the associated listed items; likewise, "at least one of" includes any one of the associated listed items, as well as any combination of any two or more of the associated listed items.

[0065] Although terms such as "first," "second," and "third" can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, terms referring to a first element, component, region, layer or section also can be referred to as a second element, component, region, layer or section without departing from the teachings of the examples described herein.

[0066] Spatially relative terms, such as "on", "upper", "lower", "below", "above", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. Spatially relative terms can be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "on" or "upper" relative to other elements or features would then be oriented "below" or "lower" relative to the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0067] The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the present disclosure. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this example belongs. The terms "a", "an" and "the" are intended to include both singular and plural forms, unless otherwise clearly indicated in the context. The terms "comprises", "comprising", "includes", "including" and "has" are intended to be inclusive and allow for other elements, components, steps, operations, members, elements and / or groups thereof that can be present or added.

[0068] Variations can occur in the shapes of the elements depicted in the figures due to differences in manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the precise shapes of the elements as illustrated in the figures, but are intended to include variations in shapes that occur due to manufacturing techniques and / or tolerances.

[0069] It should be noted that, in this document, the term "may" is used to mean that there is a possibility that a feature, an example, or an example can include or be implemented with such a feature, an example, or an example. Thus, such term "may" does not mean that a feature, an example, or an example will include or be implemented with such a feature, an example, or an example.

[0070] The features of the examples described herein can be combined in a variety of ways as will be apparent after the disclosure is understood. Moreover, although the examples described herein have a variety of configurations, other configurations are possible in light of the disclosure.

[0071] The present application is based on an energy modulator and a high-frequency feedback control system, and provides a multi-ion beam irradiation technology capable of realizing continuous energy variation, capable of realizing multiple (20-30 times) step energy modulation in an energy range (for example, 0.3 MeV / u to 1.0 MeV / u), thereby forming a longitudinally uniform wideband irradiation damage in the material.

[0072] At the same time, based on a high-precision timing synchronization system, the energy modulator and the beam transmission line are synchronized to realize continuous and accurate matching of the beam energy and the beam line, and reduce the beam loss.

[0073] Compared with the prior art, the wideband mixed ion beam irradiation method can provide more extensive irradiation conditions, and in particular, can use a mixed ion beam to form an irradiation damage longitudinal surface in the material, and study the synergistic effect of the mixed ions in the material from the longitudinal direction.

[0074] The present application further introduces an energy continuous variation system on the basis of the multi-ion beam cocktail beam technology of the existing linear accelerator, and realizes multi-point energy modulation.

[0075] Through continuous adjustment of the beam energy, the penetration depth distribution of the ions in the material can be uniformly regulated, so as to generate a wideband damage area in the material.

[0076] The present application can cover a larger range of ion deposition depth in the material through multiple step adjustments (20 to 30 times), thereby providing a rich basis for mechanical property analysis.

[0077] The present application proposes a multi-point variable energy irradiation technology based on an accelerator, which is expected to significantly improve the technical and application benefits of the irradiation damage research of nuclear energy materials.

[0078] The present application realizes wideband irradiation from 0.3 MeV / u to 1.0 MeV / u through multi-ion beam energy modulation, and provides 20-30 energy steps, thereby more truly simulating the irradiation effect of the material under complex service conditions.

[0079] The high-precision timing synchronization system reduces the beam loss in the energy modulation, improves the efficiency and stability of the experiment; at the same time, the mixed ion "cocktail beam" technology enhances the synergistic irradiation research capability of different ions on the material.

[0080] The present application will provide a more reliable experimental platform for the irradiation damage research of nuclear energy materials, and help the optimization design and development of materials.

[0081] Figure 1 is a structural schematic diagram of a broadband mixed ion beam irradiation device according to an embodiment of the present application, as shown in Figure 1 The broadband mixed ion beam irradiation device according to the embodiment of the present application includes: a cocktail beam generation and pre-accelerator 1, an energy modulator 2, a beam energy calibrator 3, a beam transport line 4, a timer 5, a high-frequency controller 6, and a database 7.

[0082] According to an embodiment of the present application, a broadband mixed ion beam irradiation device includes:

[0083] The cocktail beam generation and pre-accelerator 1 is configured to generate a mixed cocktail beam and accelerate the mixed cocktail beam.

[0084] The energy modulator 2 is configured to modulate the mixed cocktail beam from the cocktail beam generation and pre-accelerator 1.

[0085] The beam transport line 4 is configured to receive the mixed cocktail beam modulated by the energy modulator 2; and

[0086] The high-frequency controller 6 is configured to uniformly adjust the voltage and phase of the cavity of the energy modulator 2 in steps, change the cavity acceleration gradient, and perform periodic energy modulation on the mixed cocktail beam.

[0087] The mixed cocktail beam is continuously variable in the energy range of 0.3 MeV / u to 1.0 MeV / u by the energy modulator 2, and achieves 20-30 times of energy uniform step modulation.

[0088] The high-frequency controller 6 controls the mixed cocktail beam by synchronization and virtual acceleration to realize real-time feedback adjustment.

[0089] The broadband mixed ion beam irradiation device further includes the beam energy calibrator 3 and the timer 5, and the high-frequency controller 6 receives parameters from the timer 5 and the beam energy calibrator 3 to perform real-time control on the energy modulator 2.

[0090] The timer 5 is configured to synchronize the high-frequency controller 6 and the quadrupole magnet power supply in the beam transport line 4 for control, and the control accuracy is 0.01 ampere.

[0091] Generation of cocktail ion beam

[0092] A plurality of single-element gases or metal vapors generated by high-temperature heating of metals are introduced into an electron cyclotron resonance (ECR) ion source.

[0093] In the transport line, the metal vapors are transported and separated by a magnetic focusing magnet and a dipole magnet.

[0094] Subsequently, the ions are pre-accelerated by a four-wing radio frequency quadrupole accelerator (RFQ) to finally generate a conventional cocktail beam of mixed ions.

[0095] Uniform continuous scanning of mixed beam energy

[0096] Conventional mixed beam energy regulation is point-to-point energy cut-off by increasing or decreasing energy devices, which can only study the lateral synergistic damage of a certain depth of the material.

[0097] In order to study the longitudinal synergistic damage, especially the continuous penetration damage from the near surface of the material to a certain depth, new technology is needed to uniformly step the beam energy.

[0098] A step-by-step high-frequency feedback control system is used to step-by-step uniformly adjust the cavity voltage and phase, change the cavity acceleration gradient, and thus periodically modulate the energy of the mixed beam.

[0099] Synchronous negative feedback regulation of beam transport line

[0100] In order to reduce the mismatch between the mixed beam and the downstream beam line due to the continuous change of the magnetic stiffness (a physical quantity describing the resistance of magnetic materials to changes in the magnetic field) in the continuous energy change mode, a high-frequency controller, a high-precision synchronization system, and a virtual accelerator technology are designed to automatically optimize and regulate the beam, and realize real-time feedback adjustment.

[0101] The high-frequency controller is used to regulate the high-frequency cavity that implements energy change;

[0102] The high-precision synchronization system is used to synchronize the regulation of the high-frequency controller 6 and the quadrupole magnet power supply in the downstream beam transport line 4, and the regulation accuracy is about 0.01 ampere.

[0103] Figure 2 The broadband mixed ion beam irradiation method according to the embodiment of the application is shown in the flowchart as shown in Figure 2 The broadband mixed ion beam irradiation method flow includes:

[0104] S1: generating a cocktail beam

[0105] S2: transmitting and pre-accelerating the cocktail beam

[0106] S3: determining the energy change range and step

[0107] S4: setting the maximum energy point

[0108] S5: judging whether the minimum energy point is reached

[0109] S6: not proceeding to the next energy point

[0110] S7: Extracting database

[0111] S8: Starting step modulation according to database parameters

[0112] S9: Adjusting cavity operating parameters

[0113] S10: Judging whether energy is accurate

[0114] S11: Recording database

[0115] According to one embodiment of the present application, the specific steps are as follows:

[0116] Step S1 includes generating a mixed cocktail beam by the "cocktail beam generation and pre-accelerator 1" unit.

[0117] Step S2 includes transmitting and pre-accelerating the mixed cocktail beam by the "cocktail beam generation and pre-accelerator 1" unit.

[0118] Step S3 includes determining the variable energy range, i.e., determining the penetration depth range (E k ~ E0) of ions in the target, and the step (ΔE) determines the interval distance between each energy point (each depth of the sample).

[0119] Step S4 includes, after determining the variable energy range, first adjusting the beam energy to the position of the maximum energy point (E k ).

[0120] Step S5 includes judging whether the minimum energy point (E0) in the variable energy range is reached.

[0121] Step S6 includes, if S5 is not satisfied, continuing to step modulate to the next energy point (E-ΔE).

[0122] Step S7 includes, if S5 is satisfied, extracting the beam energy modulation information saved in the "database 7".

[0123] Step S8 includes reading the content of S7 and issuing it to the "high-frequency controller 6" to start automatic step modulation according to the predetermined parameters.

[0124] Step S9 includes adjusting the beam energy by adjusting the "energy modulator 2" parameters (amplitude, phase) through the "high-frequency controller 6".

[0125] Step S10 includes judging whether the beam energy is equal to (E-ΔE) according to the "beam energy calibrator 3", and if not satisfied, returning to S9 to continue adjusting the cavity parameters.

[0126] Step S11 includes, if the energy requirement is satisfied, recording the current beam energy and cavity parameters in the "database 7" and saving them.

[0127] According to an embodiment of the present application, a broadband mixed ion beam irradiation method comprises:

[0128] A mixed cocktail beam current is generated by a cocktail beam generation and pre-accelerator 1, and the mixed cocktail beam current is accelerated;

[0129] The mixed cocktail beam current from the cocktail beam generation and pre-accelerator 1 is modulated by an energy modulator 2; and

[0130] The voltage and phase of the cavity of the energy modulator 2 are uniformly adjusted step by step by a high-frequency controller 6 to change the cavity acceleration gradient to periodically modulate the energy of the mixed cocktail beam current.

[0131] It is judged by the high-frequency controller 6 whether the minimum energy point is reached, if not, step down to the next energy point, then adjust the cavity operating parameters, continue to judge whether the energy is accurate, if yes, record in the database, if not, return to continue to adjust the cavity operating parameters until accurate.

[0132] Figure 3 It is a negative feedback control flow diagram in the broadband mixed ion beam irradiation method according to the embodiment of the present application, as shown in Figure 2 The negative feedback control flow comprises:

[0133] S12: set beam energy

[0134] S13: energy step modulation

[0135] S14: calculate beam magnetic rigidity

[0136] S15: convert magnet current

[0137] S16: beam line magnet modulation

[0138] S17: determine high-frequency control system modulation parameters

[0139] S18: energy modulation

[0140] S19: energy measurement and correction

[0141] According to an embodiment of the present application, the specific steps are as follows:

[0142] S12, S13, S17, S18, S19: that is, the contents of S1-S12, mainly through the way of preset parameters, cavity control, parameter verification, data recording, feedback control to step by step modulate the beam energy, and record in the "database 7" for real-time calling.

[0143] Step S14 includes automatically calculating the magnetic rigidity when the beam energy modulation is completed.

[0144] Step S15 includes automatically calculating the current of the magnet using the magnetic rigidity calculated in S14, the center orbit deflection radius of the magnet, and the IB curve tested when the magnet is shipped.

[0145] Step S16 includes calculating the current of the magnet and sending it to the magnet power supply to perform beam line modulation. After the modulation is completed, the modulation of the next step energy point is performed.

[0146] According to one embodiment of the present application, a broadband mixed ion beam irradiation method further includes a negative feedback step, the negative feedback step comprising:

[0147] Setting the beam energy of the mixed cocktail beam, and step-by-step modulating the beam energy;

[0148] Calculating the magnetic rigidity of the mixed cocktail beam, and converting it into a magnet current to modulate the magnet of the mixed cocktail beam.

[0149] According to one embodiment of the present application, a broadband mixed ion beam irradiation method further includes a negative feedback step, the negative feedback step comprising:

[0150] Setting the beam energy of the mixed cocktail beam, and step-by-step modulating the beam energy; and

[0151] Determining the modulation parameters of the high-frequency controller to perform energy modulation to achieve the measurement and correction of the beam energy of the mixed cocktail beam.

[0152] Multi-point energy modulation

[0153] The core innovation of the present application is to achieve continuous energy variation of the mixed cocktail beam in a wide energy range (e.g. 0.3 MeV / u to 1.0 MeV / u) through an energy modulator, and to achieve 20-30 times of uniform step-by-step modulation of energy.

[0154] It can generate longitudinal broadband uniform irradiation damage inside the material, which is more advanced than the traditional single-energy or few-energy adjustment method.

[0155] High-precision timing synchronization

[0156] Synchronizing the energy modulator with the modulation of each element in the beam transport line, achieving continuous and accurate matching of the beam energy and the beam line, reducing the loss of the beam in the transmission process, and improving the irradiation efficiency and the reliability of the experiment.

[0157] Optimized high-frequency feedback control system for beam transport

[0158] The application combines a high-frequency feedback control system to realize precise control of the energy modulator and the beam transmission process.

[0159] Through the feedback mechanism, the beam state is continuously adjusted, making the beam transmission more stable and reliable, and effectively reducing the energy dispersion and loss.

[0160] Longitudinal cumulative irradiation damage

[0161] The application not only focuses on lateral irradiation damage (multi-ion synergistic effect at the same depth), but also studies cumulative irradiation damage at different depths through multi-point energy modulation technology.

[0162] Through this longitudinal damage analysis, the mechanical property changes of the material can be more comprehensively evaluated, and the actual damage of nuclear energy materials in complex service environments can be simulated.

[0163] Effects of the application

[0164] The application proposes a multi-point variable energy irradiation technology based on an accelerator, which is expected to produce significant technical and application benefits in the irradiation damage research of nuclear energy materials.

[0165] Firstly, this technology can achieve continuous variable energy from 0.3 MeV / u to 1.0 MeV / u through energy modulation of multi-ion beams, providing 20-30 energy steps, thereby forming a longitudinally uniform broadband irradiation damage inside the material.

[0166] This innovative variable energy method overcomes the limitations of existing single-energy ion beam technology and can more comprehensively and realistically simulate the cumulative irradiation effects of nuclear energy materials under complex service conditions.

[0167] Secondly, the application realizes precise synchronization between the energy modulator and the beam transmission line through a high-precision timing synchronization system, reducing the beam loss that may occur during energy modulation and significantly improving the efficiency and stability of irradiation experiments.

[0168] At the same time, this high-frequency feedback control system enables continuous matching of the energy and beam line of the beam, solving the problems of complex cooling system design of the energy modulator and difficulty in coping with high beam intensity in existing technologies.

[0169] In addition, the application innovatively introduces the mixed ion "cocktail beam" technology, enabling different ions to form a longitudinal plane of irradiation damage inside the material, effectively improving the research capability of multi-particle synergistic irradiation effects.

[0170] This not only makes the research on lateral (same depth) irradiation effects of materials more accurate, but also further expands the research range of longitudinal (different depth) cumulative damage, providing more diverse data support for the mechanical property changes and micro-damage mechanisms of nuclear energy materials.

[0171] The multi-point variable energy irradiation technology of the present application will provide a more realistic and extensive experimental platform for the research of irradiation damage of nuclear energy materials, and provide a reliable technical foundation and scientific basis for the development and optimized design of future nuclear energy materials.

[0172] Although specific examples have been shown and described above, it will be apparent to those skilled in the art, upon understanding the present disclosure, that various changes in form and detail can be made without departing from the spirit and scope of the claims and their equivalents. The examples described herein are to be understood only as being by way of descriptive illustration and not by way of limitation. Descriptions of features or aspects within each example should be considered as applicable to similar features or aspects within other examples. Proper results can still be achieved if the described techniques are performed in a different order, and / or if the components of the described systems, architectures, devices or circuits are combined in different ways, or substituted for by other components or their equivalents. Accordingly, the scope of the present disclosure is not limited to the specific embodiments described, but only by the claims and their equivalents, and all variations within the scope of the claims and their equivalents are to be construed as being included in the present disclosure.

[0173] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing examples, or make equivalent substitutions for part of the technical features; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A broadband hybrid ion beam irradiation device, comprising: A cocktail beam generator and pre-accelerator (1) is used to generate a mixed cocktail beam and accelerate the mixed cocktail beam; Energy modulator (2) modulates the energy of the hybrid cocktail beam from the cocktail beam generator and pre-accelerator (1); The beam transmission line (4) receives the hybrid cocktail beam modulated by the energy modulator (2); and The high-frequency controller (6) adjusts the voltage and phase of the cavity of the energy modulator (2) in a stepwise and uniform manner, and changes the cavity acceleration gradient to periodically modulate the energy of the hybrid cocktail beam; The broadband hybrid ion beam irradiation device also includes a beam energy calibrator (3) and a timer (5). The timer (5) is used to synchronize the high-frequency controller (6) and the quadrupole magnet power supply in the beam transmission line (4) for regulation. The high-frequency controller (6) synchronizes with the quadrupole magnet power supply in the beam transmission line (4) through the timer (5) and uses virtual accelerator technology to simulate and automatically optimize the hybrid cocktail beam, and realize real-time feedback adjustment.

2. The broadband hybrid ion beam irradiation device according to claim 1, characterized in that: The energy modulator (2) enables the hybrid cocktail beam to achieve continuous energy variation at multiple energy points within an energy range of 0.3 MeV / u to 1.0 MeV / u.

3. The broadband hybrid ion beam irradiation device according to claim 1, characterized in that: The energy modulator (2) achieves 20 to 30 uniform energy step modulations.

4. The broadband hybrid ion beam irradiation device according to claim 1, characterized in that, The high-frequency controller (6) receives parameters from the timer (5) and the beam energy calibrator (3) and performs real-time negative feedback control on the energy modulator (2).

5. The broadband hybrid ion beam irradiation device according to claim 4, characterized in that: The high-frequency controller has a control precision of 0.1 kW and 0.1 degrees, and the quadrupole magnet power supply has a control precision of 0.01 amperes.

6. A broadband hybrid ion beam irradiation method, comprising: A mixed cocktail beam is generated by generating a cocktail beam and a pre-accelerator (1), and the mixed cocktail beam is accelerated; The hybrid cocktail beam from the generation and pre-accelerator (1) is modulated by the energy modulator (2); and The voltage and phase of the cavity of the energy modulator (2) are adjusted stepwise and uniformly by the high-frequency controller (6) to change the acceleration gradient of the cavity, so as to perform periodic energy step-modulation of the hybrid cocktail beam in a wide energy range. The high-frequency controller (6) is synchronized with the power supply of the quadrupole magnet in the beam transmission line (4) through the timer (5) and the hybrid cocktail beam is simulated and automatically optimized and controlled by virtual accelerator technology, and real-time feedback adjustment is realized.

7. The broadband hybrid ion beam irradiation method according to claim 6, characterized in that: The high-frequency controller (6) determines whether the minimum energy point has been reached. If the minimum energy point has not been reached, it steps to the next energy point and then adjusts the cavity working parameters. It continues to determine whether the energy is accurate. If it is accurate, it is recorded in the database. If it is inaccurate, it returns to continue adjusting the cavity working parameters until it is accurate.

8. The broadband hybrid ion beam irradiation method according to claim 7, characterized in that, It also includes a negative feedback step, which includes: Set the beam energy of the hybrid cocktail beam, and perform step modulation on the beam energy; The magnetic stiffness of the hybrid cocktail beam is calculated and converted into a magnetic current for magnetic modulation of the hybrid cocktail beam.

9. The broadband hybrid ion beam irradiation method according to claim 7 further includes a negative feedback step, the negative feedback step comprising: Set the beam energy of the hybrid cocktail beam, and perform step modulation on the beam energy; and The modulation parameters of the high-frequency controller are determined, and energy modulation is performed to achieve the measurement and correction of the beam energy of the hybrid cocktail beam.

Images