Non-interception probe for real-time measurement of beam energy and beam intensity and use method of non-interception probe

Abstract

The invention relates to the technical field of accelerator beam diagnosis, in particular to a non-interception probe for real-time measurement of beam energy and beam intensity and a use method thereof, the non-interception probe comprises a vacuum pipeline and two sensing mechanisms, the end part of the vacuum pipeline is provided with a mounting flange, and the mounting flange is used for connecting an accelerator; the two induction mechanisms are arranged on the peripheral side of the vacuum pipeline in a spaced mode in the axial direction of the vacuum pipeline, and the induction mechanisms are used for inducing beam currents passing through the vacuum pipeline and generating induction current signals; the two induction mechanisms are respectively provided with a first signal output port feed-through, a second signal output port feed-through and a third signal output port feed-through which are used for outputting induction current signals, and the first signal output port feed-through and the second signal output port feed-through are electrically connected with data acquisition equipment; the third signal output port feed-through is electrically connected with data acquisition equipment through an IV conversion circuit, so that the occupied space can be effectively reduced, and the design and implementation of a miniaturized accelerator are greatly facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of accelerator beam diagnosis, and in particular to a non-intercepting probe for real-time measurement of beam energy and current intensity and a use method thereof. Background Art

[0002] Beam intensity and energy measurement is one of the key parameters for beam diagnosis of various types of accelerators. Accurate measurement of beam intensity and energy plays an indispensable role in accelerator debugging, acceptance and operation. At the same time, real-time measurement of beam intensity and energy can greatly facilitate accelerator debugging.

[0003] Nowadays, the design layout of accelerators is oriented towards miniaturization, and its application fields are also very wide, such as: medical heavy ion or proton therapy, ground simulation of space environment, simulation of proton displacement damage effect, and irradiation breeding. With the wide application, the demand for miniaturization is also stronger. At present, when measuring the two beam parameters of beam energy and flux in the straight section of the accelerator, at least two or three probes are used, which will occupy a large part of the longitudinal space, which is not conducive to the design of miniaturized accelerators. Summary of the invention

[0004] The present invention provides a non-intercepting probe for real-time measurement of beam energy and current intensity and a method of using the same. The non-intercepting probe for real-time measurement of beam energy and current intensity can effectively reduce occupied space and greatly facilitate the design and implementation of a miniaturized accelerator.

[0005] In a first aspect, an embodiment of the present invention provides a non-intercepting probe for real-time measurement of beam energy and flux, comprising: a vacuum pipe, a mounting flange is provided at the end of the vacuum pipe, and the mounting flange is used to connect an accelerator; two sensing mechanisms are provided on the outer peripheral side of the vacuum pipe, and the two sensing mechanisms are spaced apart along the axial direction of the vacuum pipe, and the sensing mechanisms are used to sense the beam passing through the vacuum pipe and generate an induced current signal; wherein the two sensing mechanisms are respectively provided with a first signal output port feedthrough and a second signal output port feedthrough for outputting the induced current signal, and the first signal output port feedthrough and the second signal output port feedthrough are electrically connected to a data acquisition device so that the data acquisition device outputs the energy parameters of the beam; the sensing mechanism is provided with a third signal output port feedthrough for outputting the induced current signal, and the third signal output port feedthrough is electrically connected to the data acquisition device through an IV conversion circuit so that the data acquisition device outputs the flux parameters of the beam.

[0006] In a possible implementation, the induction mechanism includes: a shell, which is sleeved on the outer peripheral side of the vacuum pipe; a ceramic, which is arranged in the shell and coaxially connected to the vacuum pipe; a magnetic induction component, which is arranged in the shell, and the magnetic induction component is located on the outer peripheral side of the ceramic, for sensing the beam and generating an induced current signal; wherein the first signal output port feedthrough, the second signal output port feedthrough and the third signal output port feedthrough are fixed on the shell.

[0007] In a possible implementation, the magnetic induction component includes a magnetic ring and a magnetic core winding wound on the magnetic ring, and the remaining end of the magnetic core winding is electrically connected to the first signal output port feedthrough, the second signal output port feedthrough and the third signal output port feedthrough.

[0008] In one possible implementation, the inner diameters of the ceramic, the vacuum pipe, and the mounting flange are kept equal.

[0009] In a possible implementation, the induction mechanism further includes a magnetic shielding layer disposed on the periphery of the magnetic induction component.

[0010] In a possible implementation manner, a function expansion portion is provided on the outer surface of the housing.

[0011] In one possible implementation, the beam energy parameter The calculation formula is: ; in, for static energy; is the relative speed of the beam, where s is the distance between the first signal output port feedthrough and the second signal output port feedthrough along the beam direction, t is the time it takes for the beam to feed through from the first signal output port to the second signal output port along the longitudinal direction; c is the speed of light.

[0012] In a possible implementation, a calibration port is further provided on the sensing mechanism, and the calibration port is electrically connected to a signal source for calibrating the feeding of the sensing current signal.

[0013] In a possible implementation manner, at least two third signal output port feedthroughs are provided on the sensing mechanism.

[0014] In a possible implementation, an adjustment bracket is further included, and the adjustment bracket is connected to the two sensing mechanisms and is used to adjust the height of the probe in the vertical direction.

[0015] In the second aspect, an embodiment of the present invention provides a method for using the above-mentioned non-intercepting probe for real-time measurement of beam energy and current intensity, comprising the following steps: when the beam passes through the vacuum pipe, it passes through two sensing mechanisms arranged at intervals in sequence, and forms induced current signals at the two sensing mechanisms respectively; the two induced current signals are respectively fed through the first signal output port and the second signal output port to be output to the data acquisition device, and the beam energy parameter information is output through the underlying logical operation; the induced current signal is fed through the third signal output port and converted by the IV conversion circuit, the induced current signal is converted into a measurable voltage signal, and the beam current intensity parameter information is output through the data acquisition device.

[0016] The present invention provides a non-intercepting probe for real-time measurement of beam energy and flux and a method for using the same. The non-intercepting probe for real-time measurement of beam energy and flux is connected to other vacuum equipment of an accelerator through an installation flange, so that the beam generated by the accelerator can enter the vacuum pipe. When the beam enters the vacuum pipe and passes through an induction mechanism, an induced magnetic field is generated, thereby obtaining an induced current signal. The induced current signal is fed through a first signal output port and a second signal output port into a data acquisition device, and the induced current signal is calculated through underlying logical operations to obtain the energy parameter of the beam. The induced current signal is fed through a third signal output port into an IV conversion circuit, and the IV conversion circuit converts the entering induced current signal into a measurable voltage signal. Accurate beam flux parameters can be obtained through a voltage-to-current calibration coefficient measured in advance. Compared with the current measurement of beam energy and flux by multiple probes, the probe of the present application can simultaneously complete the accurate measurement of beam energy and flux, and the structure is more compact, which can effectively reduce the occupied space, greatly facilitating the design and implementation of a miniaturized accelerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of a non-intercepting probe for real-time measurement of beam energy and flux intensity provided by the present invention.

[0019] Figure 2 The present invention is a schematic diagram of the cross-sectional structure of a non-intercepting probe for real-time measurement of beam energy and flux intensity.

[0020] Figure 3 yes Figure 2 Schematic diagram of the local enlarged structure at A.

[0021] Figure 4 It is a schematic diagram of the planar structure of a non-intercepting probe for real-time measurement of beam energy and flux intensity provided by the present invention.

[0022] Figure 5 It is a schematic diagram of a probe provided by the present invention obtaining beam energy through feedthrough of a first signal output port and feedthrough of a second signal output port.

[0023] Figure 6 It is a schematic diagram of a probe provided by the present invention obtaining beam current intensity through a third signal output port feedthrough and an IV conversion circuit.

[0024] Figure 7 It is a flowchart of a method for using a non-intercepting probe for real-time measurement of beam energy and flux intensity provided by the present invention.

[0025] Reference numerals: 1. Vacuum pipe; 11. Mounting flange; 2. Induction mechanism; 21. First signal output port feedthrough; 22. Second signal output port feedthrough; 23. Third signal output port feedthrough; 24. Housing; 241. Functional expansion unit; 25. Ceramics; 26. Magnetic induction component; 261. Magnetic ring; 262. Magnetic core winding; 27. Magnetic shielding layer; 3. Data acquisition equipment; 4. IV conversion circuit; 5. Adjustment bracket. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Combine the following Figure 1-6 A non-intercepting probe for real-time measurement of beam energy and flux intensity provided by an embodiment of the present invention is described, comprising a vacuum pipe 1 and two sensing mechanisms 2, wherein: A mounting flange 11 is provided at the end of the vacuum pipe 1 , and the mounting flange 11 is used to connect the accelerator.

[0028] Two sensing mechanisms 2 are arranged on the outer peripheral side of the vacuum pipe 1 . The two sensing mechanisms 2 are arranged at intervals along the axial direction of the vacuum pipe 1 . The sensing mechanisms 2 are used to sense the beam passing through the vacuum pipe 1 and generate an induced current signal.

[0029] The two sensing mechanisms 2 are respectively provided with a first signal output port feedthrough 21 and a second signal output port feedthrough 22 for outputting the sensing current signal, and the first signal output port feedthrough 21 and the second signal output port feedthrough 22 are electrically connected to the data acquisition device 3, so that the data acquisition device 3 outputs the energy parameters of the beam; the sensing mechanism 2 is provided with a third signal output port feedthrough 23 for outputting the sensing current signal, and the third signal output port feedthrough 23 is electrically connected to the data acquisition device 3 through the IV conversion circuit 4, so that the data acquisition device 3 outputs the current intensity parameters of the beam. The data acquisition device 3 includes an oscilloscope or digital acquisition electronics with logic calculation.

[0030] In the present application, other vacuum equipment of the accelerator is connected by installing the flange 11, and the beam enters the vacuum pipe 1 and generates an induced magnetic field when passing through the induction mechanism 2, thereby obtaining an induced current signal. The induced current signal enters the data acquisition device 3 through the first signal output port feedthrough 21 and the second signal output port feedthrough 22, and the data acquisition device 3 performs logical operations on the induced current signal to obtain the energy parameters of the beam; the induced current signal enters the IV conversion circuit through the third signal output port feedthrough, and the IV conversion circuit converts the entering induced current signal into a measurable voltage signal. The accurate beam current intensity parameters can be obtained by the voltage-to-current calibration coefficient measured in advance. Compared with the current measurement of the energy and current of the beam through multiple probes, the probe of the present application can simultaneously complete the accurate measurement of the energy and current of the beam, and at the same time, the structure is more compact, which can effectively reduce the occupied space, greatly facilitating the design and implementation of a miniaturized accelerator.

[0031] Specifically, the embodiment of the present invention discloses a basic structure of a non-intercepting probe for real-time measurement of beam energy and flux, which shows significant advantages in the field of medical applications. Taking the proton therapy accelerator as an example, the traditional beam diagnostic system needs to install energy detectors and flux detectors respectively, which usually occupy 120mm-160mm of longitudinal space, and there is a measurement delay between the two detectors, which affects the treatment accuracy. The present invention realizes the synchronous measurement of energy and flux by setting two spaced sensing mechanisms 2 on the periphery of the vacuum pipe 1, reducing the occupied space to 60mm-80mm. In the proton therapy of ocular melanoma, the beam energy is required to be controlled within the range of 65±0.5MeV and the flux is stable at 5±0.2nA. ​​The measurement delay of the present invention is reduced to less than 100ns, which significantly improves the control accuracy of the treatment parameters. In industrial application scenarios, such as when semiconductor devices are irradiated, the non-intercepting measurement scheme of the present invention can monitor parameter changes in real time without affecting the beam quality, and control the dose uniformity of 12-inch wafer irradiation within ±2%. In scientific research applications such as synchrotron radiation devices, the present invention can provide real-time monitoring data for beam debugging and stable operation. In particular, in X-ray free electron laser devices, it can provide timely feedback on electron beam energy jitter information, providing reliable beam quality assurance for experiments.

[0032] The data acquisition device in the embodiment of the present invention can be a single data acquisition device with more than four channels, and the energy parameters and the intensity parameters of the beam are displayed in sections through the single data acquisition device. Of course, the data acquisition device can also be two dual-channel data acquisition devices, one of which is used to display the energy parameters of the beam, and the other is used to display the intensity parameters of the beam.

[0033] In some embodiments, the sensing mechanism 2 includes: a housing 24, a ceramic 25 and a magnetic sensing component 26, wherein: The housing 24 is sleeved on the outer circumference of the vacuum pipe 1 .

[0034] The ceramic 25 is disposed in the housing 24 and is coaxially connected to the vacuum pipe 1 .

[0035] The magnetic induction component 26 is disposed in the housing 24 . The magnetic induction component 26 is located on the outer peripheral side of the ceramic 25 and is used to sense the beam and generate an induced current signal.

[0036] The first signal output port feedthrough 21 , the second signal output port feedthrough 22 and the third signal output port feedthrough 23 are fixed on the housing 24 .

[0037] The embodiment of the present invention focuses on the internal structural design of the sensing mechanism 2, and shows unique advantages in accelerator applications. By using brazed ceramics, the overall vacuum sealing is guaranteed; by using different magnetic materials, the measurement accuracy is effectively improved; by using a multi-layer high magnetic permeability magnetic shielding structure, weak signal measurement is guaranteed and electromagnetic noise is effectively shielded; by using RF feedthrough, the signal is led out of the coaxial structure to ensure high-fidelity signal output. In addition, the structure maintains stable performance over a wide temperature range of -40°C to +85°C, thanks to the precise matching of the material thermal expansion coefficient, the use of a flexible connection structure, and the implementation of a temperature compensation design. Through these technological innovations, the sensing mechanism 2 can maintain stable and reliable measurement performance in harsh working environments.

[0038] The two ends of the ceramic 25 are brazed to the stainless steel vacuum pipe 1 to ensure vacuum.

[0039] In some embodiments, the magnetic induction component 26 includes a magnetic ring 261 and a magnetic core winding 262 wound around the magnetic ring 261 , and the remaining end of the magnetic core winding 262 is electrically connected to the first signal output port feedthrough 21 , the second signal output port feedthrough 22 and the third signal output port feedthrough 23 .

[0040] The structural design of the magnetic induction component 26 is described in detail in the embodiment of the present invention, and its innovation is mainly reflected in the two aspects of broadband characteristic optimization and signal acquisition optimization. In order to meet the measurement requirements of different types of particle beams, the present invention adopts a frequency-band material optimization scheme: ferrite materials with an initial magnetic permeability of more than 10,000 are used in the low frequency band (<10MHz); nanocrystalline materials with a saturation magnetic induction intensity greater than 1.2T (Tesla) are selected in the medium frequency band (10-100MHz); and amorphous alloys with a loss factor less than 0.000001 are used in the high frequency band (>100MHz). In view of the measurement requirements of beams of different intensities, a multi-layer winding structure is designed: a large-section winding with a small number of turns is used for strong current applications, a small-section winding with a large number of turns is used for weak current applications, and a multi-layer independent winding configuration is used for complex applications. This flexible design scheme enables a single detector to adapt to a variety of beam measurement scenarios, significantly improving the versatility of the equipment.

[0041] In some embodiments, the inner diameters of the ceramic 25 , the inner diameters of the vacuum pipe 1 , and the inner diameters of the mounting flange 11 remain equal.

[0042] The embodiment of the present invention emphasizes the importance of inner diameter consistency design, which has special value in high-power accelerator applications. During the operation of a high-power proton linear accelerator, changes in the inner diameter of the beam pipe will cause local impedance mismatch, resulting in beam loss and pipe heating problems. To solve this technical problem, the present invention adopts a high-precision CNC machining process to strictly control the inner diameter tolerance of the pipe within the range of ±0.02mm, and the surface roughness reaches Ra<0.4μm (micrometer). During the assembly process, high-precision centering tooling and step-by-step centering methods are adopted, and a laser tracking measurement system is used for real-time monitoring to ensure that the inner diameters of the ceramic 25, the vacuum pipe 1 and the mounting flange 11 are strictly consistent. Actual application data show that this precision design improves the beam transmission efficiency by 2-3 percentage points. In high-power industrial accelerators, such as electron beam irradiation devices, this efficiency improvement can be directly converted into significant economic benefits. In addition, the inner diameter consistency design also effectively reduces the lateral divergence of the beam and improves the beam quality, which is particularly important in precision irradiation applications.

[0043] In some embodiments, the sensing mechanism 2 further includes a magnetic shielding layer 27 disposed on the periphery of the magnetic sensing component 26 .

[0044] The design of the magnetic shielding layer 27 proposed in the embodiment of the present invention solves the problem of electromagnetic interference, and has a significant application effect in complex electromagnetic environments. The present invention adopts a multi-layer composite shielding structure and optimizes material properties through a special heat treatment process. In terms of structural design, an innovative segmented design is adopted, which is not only convenient for assembly and maintenance, but also reduces magnetic leakage through overlapping seam design, and the end reinforcement treatment further improves the shielding effect. In the medical linear accelerator environment, even under strong electromagnetic interference with a radio frequency power of several megawatts, the shielding design can still attenuate external magnetic field interference by more than 40dB. This excellent shielding performance ensures accurate measurement in complex electromagnetic environments, and is particularly suitable for medical and scientific research equipment with extremely high requirements for measurement accuracy.

[0045] In some embodiments, a function expansion portion 241 is disposed on the outer surface of the housing 24 .

[0046] The functional expansion design described in the embodiments of the present invention reflects the scalability and integration of the system. In practical applications, especially superconducting accelerator systems, it is often necessary to monitor multiple working parameters at the same time. The present invention achieves flexible functional expansion by reserving standardized interfaces, adopting modular installation structures and extensible communication protocols. Specifically, a PT100 sensor is used for temperature monitoring, a cold cathode gauge is used for vacuum detection, and a capacitive sensor is used for position monitoring. These sensors can be easily integrated into the system through reserved interfaces. When the low-temperature superconducting accelerator is running, the system can simultaneously obtain key data such as beam parameters, cavity temperature, vacuum degree, etc., providing comprehensive information support for equipment debugging and fault diagnosis. This integrated design not only saves installation space, but also realizes multi-parameter collaborative monitoring, greatly improving the operating efficiency and reliability of the system.

[0047] Specifically, the function expansion unit 241 in the present invention can be equipped with magnets and other equipment, and can be used in various types of accelerators, especially greatly facilitating the design and implementation of miniaturized accelerators.

[0048] In some embodiments, the energy parameter of the beam is The calculation formula is: ; in, for static energy; is the relative speed of the beam, where s is the distance between the first signal output port feedthrough and the second signal output port feedthrough 22 along the beam direction, t is the time it takes for the beam to travel from the first signal output port feedthrough to the second signal output port feedthrough 22 along the longitudinal direction; and c is the speed of light.

[0049] Specifically, =938.27208816MeV (mega electron volts), c=299792458m / s, which is the speed of light.

[0050] The energy parameter measurement scheme proposed in the embodiment of the present invention plays a key role in precision applications such as medical proton therapy. The present invention adopts high-speed digital sampling technology to achieve a time resolution better than 50ps (picoseconds), and the trigger jitter is controlled within 10ps. In terms of distance measurement, the laser interferometer measurement technology is combined with precision machining and temperature compensation design to ensure the high accuracy and stability of the measurement system. Taking proton therapy as an example, the present invention can control the relative accuracy of energy measurement within 0.1%, which is crucial to ensure precise control of the treatment range. The system also has real-time data processing and intelligent analysis functions, which can quickly respond to energy fluctuations and provide timely parameter feedback for the treatment process.

[0051] In some embodiments, the sensing mechanism 2 is further provided with a calibration port, which is electrically connected to a signal source and is used for calibrating the feeding of the sensing current signal.

[0052] The calibration port design in the embodiment of the present invention greatly improves the practicality and reliability of the equipment. In the long-term operation of industrial accelerators, the accuracy of the measurement system is easily affected by various factors and deviates. The present invention realizes real-time calibration capability during operation through an innovative online calibration scheme. The system includes a standard signal source injection mechanism, an automatic calibration program and a complete data recording function. The calibration cycle management system has an intelligent reminder function, which can trace historical data and automatically generate calibration reports. This design is particularly suitable for accelerator applications on continuous production lines, significantly reducing equipment maintenance time. For example, on a semiconductor irradiation production line, the system can automatically complete the calibration process during production breaks, which ensures measurement accuracy without affecting production efficiency.

[0053] In some embodiments, at least two third signal output port feedthroughs 23 are disposed on the sensing mechanism 2 .

[0054] The multi-channel design in the embodiment of the present invention provides excellent reliability. In industrial applications requiring high reliability, the system adopts a dual-channel backup configuration, equipped with an automatic switching function and a fault diagnosis system. Digital filtering algorithms are applied in signal processing to achieve dynamic range expansion and adaptive gain control. This design enables the system to maintain normal operation when a single channel fails, greatly improving the availability of the equipment. In continuously operating industrial irradiation devices, this design can ensure high-reliability operation of the equipment and reduce losses caused by unexpected downtime.

[0055] In some embodiments, an adjustment bracket 5 is also included. The adjustment bracket 5 is connected to the two sensing mechanisms 2 and is used to adjust the height of the probe in the vertical direction.

[0056] The design of the adjustment bracket 5 in the embodiment of the present invention solves the problem of on-site installation and debugging. The bracket adopts a three-dimensional fine-tuning structure, equipped with a shock-proof and vibration-reducing design and an optimized locking mechanism, providing a height adjustment range of ±10mm and an angle adjustment capability of ±2°. The quick alignment function and position repeatability guarantee mechanism greatly simplify the installation and debugging work. For example, in the accelerator upgrade and renovation project, this flexible installation solution can significantly reduce the debugging time and improve work efficiency. The shock-proof design also effectively reduces the impact of external vibration on the measurement and ensures the stability of long-term operation.

[0057] The non-intercepting probe for real-time measurement of beam energy and flux is connected to other vacuum equipment of the accelerator through the mounting flange 11. When the beam enters the vacuum pipe 1 and passes through the induction mechanism 2, an induced magnetic field is generated, thereby obtaining an induced current signal. The induced current signal enters the data acquisition device 3 through the first signal output port feedthrough 21 and the second signal output port feedthrough 22. The data acquisition device 3 performs logical operations on the induced current signal to obtain the energy parameters of the beam; the induced current signal enters the IV conversion circuit through the third signal output port feedthrough, and the IV conversion circuit converts the entering induced current signal into a measurable voltage signal. The accurate beam flux parameters can be obtained by the voltage-to-current calibration coefficient measured in advance. Compared with the current measurement of the energy and flux of the beam through multiple probes, the probe of the present application can simultaneously complete the accurate measurement of the energy and flux of the beam, and at the same time, the structure is more compact, which can effectively reduce the occupied space, greatly facilitating the design and implementation of a miniaturized accelerator. The outside of the accelerator can be equipped with magnets and other equipment through the function expansion unit 241, and can be used in various accelerators, especially miniaturized accelerators; at the same time, since the whole device is a passive device, the whole device has higher reliability and a long service life; at the same time, the design of the calibration port has a self-calibration function, which can greatly facilitate online use and maintenance.

[0058] like Figure 7 As shown, an embodiment of the present invention provides a method for using the above-mentioned non-intercepting probe for real-time measurement of beam energy and flux intensity, comprising the following steps: S1, when the beam passes through the vacuum pipe, it passes through two sensing mechanisms arranged at intervals in sequence, and forms induced current signals at the two sensing mechanisms respectively; S21, the two induced current signals are respectively fed through the first signal output port and the second signal output port to be output to the data acquisition device, and the beam energy parameter information is output through the underlying logic operation; S22, the induced current signal is fed through the third signal output port and converted by the IV conversion circuit, the induced current signal is converted into a measurable voltage signal, and the beam current intensity parameter information is output through the data acquisition device.

[0059] In the present invention, the induction mechanism includes a magnetic induction component, and the beam generates an induced magnetic field when passing through the magnetic induction component, thereby obtaining an induced current signal. The induced current signal is fed through the first signal output port and the second signal output port to the data acquisition device, and the beam energy parameter information is output after the underlying logic operation; at the same time, the induced current signal is fed through the third signal output port to the IV conversion circuit, and after the induced current signal is converted into a measurable voltage signal by the IV conversion circuit, the accurate beam current intensity parameter can be obtained by the voltage-to-current calibration coefficient measured in advance. The beam energy parameter and the current intensity parameter can be measured at the same time. Compared with the prior art that only 3 to 4 probes are required to complete the beam energy and beam current measurement, the space occupied by the probe axial direction is greatly reduced, which is convenient for the design and implementation of a miniaturized accelerator.

[0060] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A non-intercepting probe for real-time measurement of beam energy and flux intensity, characterized in that: include: A vacuum pipe (1), wherein an end of the vacuum pipe (1) is provided with a mounting flange (11), and the mounting flange (11) is used to connect to an accelerator; Two sensing mechanisms (2) are arranged on the outer peripheral side of the vacuum pipe (1), and the two sensing mechanisms (2) are arranged at intervals along the axial direction of the vacuum pipe (1). The sensing mechanisms (2) are used to sense the beam passing through the vacuum pipe (1) and generate an induced current signal; The two sensing mechanisms (2) are respectively provided with a first signal output port feedthrough (21) and a second signal output port feedthrough (22) for outputting the induced current signal, and the first signal output port feedthrough (21) and the second signal output port feedthrough (22) are electrically connected to a data acquisition device (3) so that the data acquisition device (3) outputs the energy parameter of the beam; the sensing mechanism (2) is provided with a third signal output port feedthrough (23) for outputting the induced current signal, and the third signal output port feedthrough (23) is electrically connected to the data acquisition device (3) through an IV conversion circuit (4) so ​​that the data acquisition device (3) outputs the current intensity parameter of the beam.

2. The non-intercepting probe for real-time measurement of beam energy and flux according to claim 1, characterized in that: The sensing mechanism (2) comprises: A housing (24) sleeved on the outer circumference of the vacuum pipe (1); A ceramic (25) is disposed in the housing (24) and is coaxially connected to the vacuum pipe (1); A magnetic induction component (26) is disposed in the housing (24), the magnetic induction component (26) being located on the outer peripheral side of the ceramic (25) and being used to sense the beam current and generate the induced current signal; Wherein, the first signal output port feedthrough (21), the second signal output port feedthrough (22) and the third signal output port feedthrough (23) are fixed on the housing (24).

3. The non-intercepting probe for real-time measurement of beam energy and flux according to claim 2, characterized in that: The magnetic induction component (26) comprises a magnetic ring (261) and a magnetic core winding (262) wound around the magnetic ring (261), wherein a retained end of the magnetic core winding (262) is electrically connected to the first signal output port feedthrough (21), the second signal output port feedthrough (22) and the third signal output port feedthrough (23).

4. The non-intercepting probe for real-time measurement of beam energy and flux according to claim 2, characterized in that: The inner diameters of the ceramic (25), the inner diameter of the vacuum pipe (1) and the inner diameter of the mounting flange (11) are kept equal.

5. The non-intercepting probe for real-time measurement of beam energy and flux according to claim 2, characterized in that: The induction mechanism (2) further comprises a magnetic shielding layer (27) arranged on the periphery of the magnetic induction component (26).

6. The non-intercepting probe for real-time measurement of beam energy and flux according to any one of claims 2 to 5, characterized in that: The outer surface of the housing (24) is provided with a function expansion portion (241).

7. The non-intercepting probe for real-time measurement of beam energy and flux according to claim 1, characterized in that: The energy parameters of the beam The calculation formula is: ； in, for static energy; is the relative speed of the beam, wherein s is the distance between the first signal output port feedthrough (21) and the second signal output port feedthrough (22) along the beam direction, t is the time it takes for the beam to travel from the first signal output port feedthrough (21) to the second signal output port feedthrough (22) along the longitudinal direction; and c is the speed of light.

8. The non-intercepting probe for real-time measurement of beam energy and flux according to claim 1, characterized in that: The sensing mechanism (2) is also provided with a calibration port, which is electrically connected to a signal source and is used to calibrate the feeding of the sensing current signal.

9. The non-intercepting probe for real-time measurement of beam energy and flux according to claim 8, characterized in that: At least two third signal output port feedthroughs (23) are provided on the sensing mechanism (2).

10. A method for using the non-intercepting probe for real-time measurement of beam energy and flux intensity as claimed in any one of claims 1 to 9, characterized in that: The steps include: When the beam passes through the vacuum pipe, it passes through two sensing mechanisms arranged at intervals in sequence, and forms induced current signals at the two sensing mechanisms respectively; The two induced current signals are respectively fed through the first signal output port and the second signal output port and output to the data acquisition device, and the beam energy parameter information is output through the underlying logic operation; The induced current signal is fed through the third signal output port and converted by the IV conversion circuit, the induced current signal is converted into a measurable voltage signal, and the beam current intensity parameter information is output through the data acquisition device.

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