CN115758735A - A scanning magnet dynamic identification real-time segmented slope feedback method and system - Google Patents

Abstract

The invention belongs to the technical field of synchrotron, and relates to a scanning magnet dynamic identification real-time segmentation slope feedback method, a system, a readable medium and computing equipment, which comprises the following steps: acquiring beam position distribution information of beams in horizontal and vertical directions; obtaining different kinds of error information according to the beam position distribution information; performing segmented slope feedback according to the error information to obtain an optimized power supply triangular wave excitation curve; and inputting the power supply triangular wave excitation curve into the magnet power supply, and obtaining new segment slope feedback after the beam current passes again until the scanning beam spot of the terminal meets the preset uniformity. The invention can directly detect and optimize the beam uniformity, has high compatibility and reliability, does not need to introduce additional hardware equipment, and has low cost and convenient use.

Description

A scanning magnet dynamic identification real-time segmented slope feedback method and system

technical field

The invention relates to a scanning magnet dynamic identification real-time segmented slope feedback method and system, belonging to the technical field of synchrotrons.

Background technique

Today, accelerators have developed rapidly in both basic research and expanded applications. There are many types of accelerators: linear accelerators, cyclotrons, synchrotrons, etc. After various accelerators accelerate the particles to the required energy, they are usually selected to be transported to the end of the beam through the transport line for use. In order to maintain a large beam transmission efficiency and reduce the size of accelerator components to save costs, the beam size is generally kept at a small level during transmission. If the final required beam size is much larger than the size in the transmission process, usually a scanning magnet is used to increase the beam spot to achieve the desired beam size index at the end. The scanning magnet is a widely used magnetic component. Its structure and principle are similar to ordinary two-pole magnets. A two-pole magnetic field perpendicular to the coil plane is generated through an iron core and a pair of excitation coils, and a deflection force proportional to the excitation current is generated on the beam current. .

Since the current of the scanning magnet power supply needs to be continuously bidirectional and linearly adjustable, the output current waveform often has the problem of zero-crossing distortion, that is, a certain tracking deviation will be generated every time the current switches between positive and negative. In addition, since the excitation current works in the high-frequency triangular wave mode, the vibration and eddy current effects of the scanning magnet will also cause the actual generated magnetic field to deviate from the ideal value, and finally a large-sized beam spot with poor uniformity will be obtained, which will reduce the terminal's final gain. The quality of the beam, affecting the effect of accelerator beam applications such as radiation therapy and irradiation experiments.

Contents of the invention

In view of the above problems, the object of the present invention is to provide a scanning magnet dynamic identification real-time segmented slope feedback method and system, which can improve the beam uniformity to more than 90%, and can optimize high terminal uniformity.

In order to achieve the above object, the present invention proposes the following technical solutions: a real-time segmental slope feedback method for dynamic identification of scanning magnets, comprising the following steps: obtaining beam position distribution information of the beam in the horizontal and vertical directions; Different types of error information are obtained from the distribution information; the segmented slope feedback is performed according to the error information, and the optimized triangular wave excitation curve of the power supply is obtained; the triangular wave excitation curve of the power supply is input into the magnet power supply, and a new segmented slope feedback is obtained after the beam passes through again, until The scanning beam spot of the terminal satisfies the preset uniformity.

Further, the types of error information include: segmental slope deviation, positive and negative semi-axis deviation, and zero-crossing area bulge.

Further, the method of segmented slope feedback is: solve the positive and negative semi-axis deviation through the positive and negative zero drift of the power waveform; solve the bulge of the zero crossing area through the zero crossing intercept of the power waveform; The corrected power triangular wave is segmented according to the slope, and the power triangular wave is optimized according to the segmentation results; the optimized power triangular wave is sent to the scanning magnet power supply, and after the beam passes through again, the result of the segmented slope optimization is fed back .

Further, positive and negative zero drift means that the positive and negative amplitudes of the scanning ferrocurrent waveform are no longer equal, and can be increased or decreased respectively.

Further, the zero-crossing intercept refers to adding a fixed value as a whole to the absolute value of the positive and negative halves of the scanning iron waveform.

Further, the method of segmenting the triangular wave of the power supply according to the slope is as follows: the counting curve in the beam position distribution information is segmented according to the position, and the slope curve of the power supply waveform is divided into the same number of segments corresponding to the current value, and the two steps Each segment of the obtained segmented curve is corresponding to obtain the final segmented curve.

Further, the calculation formula of the terminal beam current is:

Among them, A _max and A _min are the maximum and minimum counts in the beam distribution data of the striped ionization chamber, respectively, and U is the terminal beam uniformity.

The invention also discloses a scanning magnet dynamic identification real-time segmental slope feedback system, which includes: a beam position distribution information acquisition module for acquiring beam position distribution information in the horizontal and vertical directions of the beam; an error information classification module , used to obtain different types of error information according to the beam current position distribution information; the error optimization module is used to perform segmental slope feedback according to the error information, and obtain the optimized triangular wave excitation curve of the power supply; the output feedback module is used to excite the triangular wave of the power supply The curve is input to the magnet power supply, and the new segmental slope feedback is obtained after the beam passes through again, until the scanning beam spot at the terminal meets the preset uniformity.

Further, the error optimization module includes: a positive and negative zero drift module, which is used to solve the positive and negative semi-axis deviation through the positive and negative zero drift of the power waveform; a zero-crossing intercept module, which is used to solve the zero-crossing area through the zero-crossing intercept of the power waveform Convex; the segmented slope optimization module is used to segment the triangular wave of the power supply after positive and negative zero drift and zero-crossing intercept correction according to the slope, and optimize the triangular wave of the power supply according to the segmentation results; the feedback module is used to The optimized triangular wave of the power supply is sent to the power supply and the scanning magnet, and after the beam current passes through again, the result of segmented slope optimization is fed back.

The present invention also discloses a computer-readable storage medium, on which a computer program is stored, and the computer program is executed by a processor to realize the real-time segmental slope feedback method for dynamic identification of any scanning magnet described above.

The present invention is also a computing device, comprising: one or more processors, memory and one or more programs, wherein one or more programs are stored in the memory and configured to be executed by the one or more processors, one or more A plurality of programs include a real-time segmented slope feedback method for performing any scanning magnet dynamic identification as described above.

The present invention has the following advantages due to the adoption of the above technical scheme:

1. No matter whether the present invention is a miniaturized cancer treatment accelerator or a huge synchrotron, as long as the terminal has a beam distribution detector similar to a scanning iron and a striped ionization chamber, this invention can be applied. The invention can directly detect and optimize the uniformity of the beam current, has high compatibility and reliability, does not need to introduce additional hardware equipment, and is cheap and convenient to use.

2. The present invention directly uses the beam distribution data collected by the striped ionization chamber, calculates the optimized waveform in real time and sends it to the scanning magnet power supply, and immediately after the power supply updates the waveform, the optimized beam distribution data can be collected by the striped ionization chamber again and again Optimization, repeating several times can be iterated repeatedly for feedback control. The calculation of the optimized waveform can be completed within a few seconds, and the time spent mainly comes from the data acquisition and transmission of the striped ionization chamber, the update of the scanning iron power supply waveform, and the pulse interval of the beam itself.

3. After several months of online operation, the algorithm used in the present invention can efficiently analyze various error sources of terminal uniformity, and provide the most effective correction means and correction amount on the scanning magnet power waveform respectively. There is a certain correspondence between the waveform of the scanning magnet and the uniformity of the terminal, but the source of the final error is very different. If the same correction method is directly used on the waveform, it is often impossible to obtain a good correction effect. By summarizing a large amount of beam test data, this algorithm can optimize beam uniformity concisely and efficiently.

4. The present invention can take less consideration of the complex eddy current and vibration effects of the magnet, and the zero-crossing correction of the power supply, etc., and directly obtain the final beam current uniformity from the result, and feed back to the source power waveform, which can greatly reduce the intermediate The capital and time cost of process optimization, and the low-cost and efficient optimization of the uniformity of the terminal beam have become the best choice for applications and experimental accelerators in the fields of cancer treatment, material irradiation, and aerospace research.

Description of drawings

Fig. 1 is a relation diagram between the beam current position and the excitation current of a striped ionization chamber in an embodiment of the present invention;

Fig. 2 is an information map of the beam position distribution of the striped ionization chamber before correction in an embodiment of the present invention;

Fig. 3 is the segmented slope correction diagram of current waveform in an embodiment of the present invention, Fig. 3 (a) is the triangular waveform diagram that scanning iron power supply outputs, Fig. 3 (b) is the slope diagram of the triangular wave output of scanning iron power supply;

Fig. 4 is a flowchart of a method for segmented slope feedback in an embodiment of the present invention;

Fig. 5 is a schematic diagram of the method of segmented slope feedback in an embodiment of the present invention, Fig. 5 (a) is the beam position distribution information collected by the striped ionization chamber, and Fig. 5 (b) is a triangular waveform diagram output by the scanning iron power supply , Figure 5(c) is a schematic diagram of the bulge in the zero-crossing area, Figure 5(d) is a schematic diagram of the optimization of the zero-crossing intercept, Figure 5(e) is a schematic diagram of the positive and negative semi-axis deviations, Figure 5(f) is the positive A schematic diagram of negative zero drift optimization, Figure 5(g) is a schematic diagram of a segmented counting curve, Figure 5(h) is a schematic diagram of a segmented slope optimization, and Figure 5(i) is a graph after calibration;

Fig. 6 is an information map of the beam position distribution of the striped ionization chamber after correction in an embodiment of the present invention.

Detailed ways

In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail through specific examples. However, it should be understood that specific embodiments are provided only for better understanding of the present invention, and they should not be construed as limiting the present invention. In describing the present invention, it should be understood that the terms used are for the purpose of description only, and should not be understood as indicating or implying relative importance.

In order to solve the problem that the current waveform of the scanning magnet power supply current output in the prior art often has zero-crossing distortion, that is, a certain tracking deviation will be generated every time the current is switched between positive and negative; and because the excitation current works at high In the triangular wave mode of the frequency, the vibration and eddy current effects of the scanning magnet cause the actual magnetic field to deviate from the ideal value, and finally make the beam terminal obtain a large-sized beam spot with poor uniformity, which reduces the final beam quality obtained by the terminal and affects Effects of accelerator beam applications such as radiation therapy and irradiation experiments. The present invention proposes a scanning magnet dynamic identification real-time segmental slope feedback method, system, readable medium and computing equipment, real-time analysis of the beam distribution obtained by the striped ionization chamber, and the above-mentioned different types of error information can be obtained, which is called For "dynamic identification". After the counting curve obtained by the striped ionization chamber passes through the optimization algorithm based on segmented slope optimization, the optimized waveform is loaded to the scanning iron power supply, and a new optimized waveform is obtained through the measurement results of the next striped ionization chamber, and several iterations are fed back After optimization, scan uniformity with high enough uniformity can be obtained, which is called "real-time segmented slope feedback". This dynamic identification real-time segmented slope feedback system, by analyzing the beam current distribution of the terminal strip ionization chamber, can feed back and optimize the excitation current of the scanning iron in real time, and improve the uniformity of the terminal beam current to more than 90%, which meets the needs of research, experiment and application demand. The solutions of the present invention will be described in detail below through embodiments in conjunction with the accompanying drawings.

Embodiment one

This embodiment discloses a scanning magnet dynamic identification real-time segmented slope feedback method, including the following steps:

S1 obtains the beam position distribution information of the beam in the horizontal and vertical directions;

In this embodiment, the striped ionization chamber is used to obtain the beam position distribution information of the beam in the horizontal and vertical directions, and other beam diagnosis equipment can be substituted if it can play the same role. The striped ionization chamber is a commonly used beam diagnostic equipment, which has a pair of electrode plates and is filled with thin gas. When the beam passes through the gas, positive and negative ion pairs are ionized, and the charges move along the electric field perpendicular to the direction of the beam. The polar plates divided into a certain number of strips receive and generate electrical signals on the corresponding polar plates. Different plates correspond to different spatial positions. The horizontal and vertical strip plates are combined, and the position distribution information of the beam can be obtained by analyzing the electrical signal. The strength of the current signal is proportional to the number of particles at the location. For beam terminals or cancer treatment accelerators, the striped ionization chamber is usually placed near the target room or the hospital bed during acceptance, and the beam position distribution information in the actual application of the beam is obtained. The relationship between the beam position of the striped ionization chamber and the excitation current The relationship between them is shown in Figure 1.

S2 obtains different types of error information according to the beam position distribution information;

Since the scanning magnet in Figure 1 is loaded with a triangular wave, ideally the position of the beam on the striped ionization chamber also changes uniformly with time, and the striped ionization chamber will display a flat beam distribution. However, due to the influence of power supply, magnet and beam current itself, the beam current distribution actually displayed by the striped ionization chamber is shown in Figure 2, and the beam current is not evenly distributed, and the purpose of the present invention is to correct this inhomogeneity. The present invention first proposes to correct the inhomogeneity when the beam is spread by the scanning iron by adjusting the slope of the scanning iron waveform.

Fig. 3 is the subsection slope correction figure of current waveform in an embodiment of the present invention, and Fig. 3 (a) is the triangular waveform figure that scanning iron power supply outputs, and Fig. 3 (b) is the slope figure of the triangular wave output of scanning iron power supply; It can be seen that in the case of no correction, the dotted line in Figure 3(b) represents the constant value of the slope of the original waveform as a positive or negative change. At this time, the waveform is segmented for easy adjustment, and the slope of each small segment of the waveform can be adjusted individually. The solid line in Figure 3(b) is the segmented slope curve adjusted according to the beam current distribution feedback. The original waveform and the adjusted correction Quantities are represented by solid and dashed lines in Fig. 3(a), respectively.

After receiving the beam current signal, the S3 sub-strip current chamber performs segmented slope feedback according to the error information, and obtains the optimized triangular wave excitation curve of the power supply;

The types of error information include: segmental slope deviation, positive and negative semi-axis deviation, and zero-crossing area bulge. As shown in Figure 4, the method of segmented slope feedback is:

S3.1 Solve the positive and negative semi-axis deviation through the positive and negative zero drift of the power waveform;

S3.2 Solve the zero-crossing region bulge through the zero-crossing intercept of the power waveform;

S3.3 Segment the triangular wave of the power supply after positive and negative zero drift and zero-crossing intercept correction according to the slope, and optimize the triangular wave of the power supply according to the segmentation results;

S3.4 sends the optimized triangular wave of the power supply to the power supply and the scanning magnet, and after the beam current passes through again, the result of segmented slope optimization is fed back.

Fig. 5 is a schematic diagram of analyzing the counting curve of the striped ionization chamber by an algorithm and performing correction on the scanning iron waveform. Figure 5(a) is the beam position distribution information collected by the striped ionization chamber, Figure 5(b) is the triangular waveform diagram output by the scanning iron power supply, Figure 5(c) is a schematic diagram of the bulge in the zero-crossing area, and Figure 5( d) is a schematic diagram of zero-crossing intercept optimization, Figure 5(e) is a schematic diagram of positive and negative semi-axis deviations, Figure 5(f) is a schematic diagram of positive and negative zero drift optimization, and Figure 5(g) is a schematic diagram of a segmented counting curve Schematic diagram, Fig. 5 (h) is the schematic diagram of subsection slope optimization, and Fig. 5 (i) is the curve diagram after correction;

The segmental slope control of the scanning iron waveform is the main optimization method, corresponding to the correction optimization process in Fig. 5(g) and Fig. 5(h). The method of segmenting the triangular wave of the power supply according to the slope is as follows: after the counting curve in the beam position distribution information, that is, the counting curve in Figure 2, is segmented according to the position (horizontal axis) (as shown in Figure 5(g)), And the slope curve of the power supply waveform is also divided into the same number of segments according to the corresponding range of the triangular wave current value (vertical axis) (as shown in Figure 5(h)), and each segment of the segmented curve obtained in the two steps is correspondingly obtained. The final segmented curve. The final correction result is shown in Fig. 5(i), and the overall corrected and optimized scanning iron waveform is shown in Fig. 3 . However, all inhomogeneities cannot be corrected by segmental slope control alone, and two other optimization methods are required. There is no sequence difference between these two optimization methods, but the two optimization methods need to be performed before segmental slope control.

For the bulge in the zero-crossing area in Figure 2, the zero-crossing intercept is used in the scanning iron waveform to solve it. The zero-crossing intercept means that a fixed value can be added to the absolute value of the positive and negative halves of the scanning iron waveform, corresponding to the correction optimization in Figure 5(d).

For the situation in Figure 2 that the positive and negative half axes are one high and one low, it can be solved by adding positive and negative zero drift in the scanning iron waveform. Positive and negative zero drift means that the positive and negative amplitudes of the scanning ferrocurrent waveform are no longer equal, and can be increased or decreased respectively, corresponding to the correction optimization in Figure 5(f).

S4 inputs the triangular wave excitation curve of the power supply to the magnet power supply to obtain a new segmental slope feedback until the uniformity of the terminal beam current meets the preset condition of the terminal scanning beam spot.

This dynamic identification real-time segmented slope feedback system, by analyzing the beam current distribution of the terminal strip ionization chamber, can feed back and optimize the excitation current of the scanning iron in real time, and improve the uniformity of the terminal beam current to more than 90%, which meets the needs of research, experiment and application demand.

As shown in Figure 6, the beam distribution data of the striped ionization chamber before and after correction, the beam uniformity increased from 76.6% to 93.6%. It can be seen from the figure that the zero-crossing distortion, the average deviation of the positive and negative semi-axis, and the overall deviation level have been well corrected. Among them, the calculation formula of terminal beam current is:

Among them, A _max and A _min are the maximum and minimum counts in the beam distribution data of the striped ionization chamber, respectively, and U is the terminal beam uniformity.

Embodiment two

Based on the same inventive concept, this embodiment discloses a scanning magnet dynamic identification real-time segmented slope feedback system, including:

The beam position distribution information acquisition module is used to obtain the beam position distribution information of the beam in the horizontal and vertical directions;

The error information classification module is used to obtain different types of error information according to the beam position distribution information;

The error optimization module is used to perform segmented slope feedback according to the error information to obtain the optimized power triangular wave excitation curve;

The output feedback module is used to input the triangular wave excitation curve of the power supply into the magnet power supply. After the beam current passes through again, a new segmented slope feedback is obtained until the scanning beam spot at the terminal meets the preset uniformity.

The error optimization module includes: positive and negative zero drift module, used to solve positive and negative semi-axis deviation through positive and negative zero drift; zero crossing intercept module, used to solve zero crossing area bulge through zero crossing intercept; segmental slope optimization module , used to segment the triangular wave of the power supply after positive and negative zero drift and zero-crossing intercept according to the slope, and optimize the triangular wave of the power supply according to the segmentation results; the feedback module is used to send the optimized triangular wave of the power supply to the power supply and After the magnet is scanned and the beam passes through again, the result of segmented slope optimization is fed back.

Embodiment Three

Based on the same inventive concept, this embodiment discloses a computer-readable storage medium storing one or more programs, one or more programs include instructions, and the instructions, when executed by a computing device, cause the computing device to execute any one of the above-mentioned Term non-resonant fast acceleration full waveform dynamic compensation method.

Embodiment four

Based on the same inventive concept, this embodiment discloses a computing device, including: one or more processors, memory, and one or more programs, wherein one or more programs are stored in the memory and configured to be executed by one or more Executed by multiple processors, one or more programs are used to execute the full waveform dynamic compensation method for non-resonant fast acceleration according to any one of the above.

Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present application is described with reference to flowcharts and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention can still be Any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention shall fall within the protection scope of the claims of the present invention. The above content is only the specific implementation of the application, but the scope of protection of the application is not limited thereto. Any person familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the application, and should cover Within the protection scope of this application. Therefore, the protection scope of the present application should be defined as the protection scope of the claims.

Claims (10)

1. A scanning magnet dynamic identification real-time segmentation slope feedback method is characterized by comprising the following steps:

acquiring beam position distribution information of beams in horizontal and vertical directions;

obtaining different kinds of error information according to the beam position distribution information;

performing segmented slope feedback according to the error information to obtain an optimized power supply triangular wave excitation curve;

and inputting the power supply triangular wave excitation curve into a magnet power supply, and obtaining new subsection slope feedback after the beam current passes through again until the scanning beam spot of the terminal meets the preset uniformity.

2. The method as claimed in claim 1, wherein the type of the error information comprises: the segment slope deviation, the positive and negative half shaft deviation and the zero-crossing region are raised.

3. The method for feeding back the slope of the segment of the scanning magnet in real time by dynamic recognition according to claim 2, wherein the method for feeding back the slope of the segment comprises:

the positive and negative half shaft deviation is solved through positive and negative zero drift of the power supply waveform;

solving the bulge of the zero-crossing region through the zero-crossing intercept of the power supply waveform;

segmenting the power supply triangular wave after positive and negative zero drift and zero-crossing intercept correction according to the slope, and optimizing the power supply triangular wave according to the segmentation result;

and sending the optimized power supply triangular wave to a power supply and a scanning magnet, and feeding back a result of the optimization of the segmentation slope after the beam passes through again.

4. The method as claimed in claim 3, wherein the zero-crossing intercept is a fixed value added to the absolute values of the positive and negative halves of the scanned iron waveform.

5. The feedback method for scanning magnet dynamic identification real-time segmentation slope of claim 3, wherein the method for segmenting the power supply triangular wave according to the slope comprises the following steps: and segmenting the counting curve in the beam position distribution information according to positions, segmenting the power waveform slope curve by the same number in the corresponding range according to the current value, and corresponding each segment of the segmented curves obtained in the two steps to obtain a final segmented curve.

6. The method for feeding back the slope of the scanning magnet according to any one of claims 1 to 5, wherein the equation for calculating the uniformity of the terminal beam current is as follows:

wherein, A _max And A _min Respectively, the beam distribution data of the strip ionization chamberMedium and minimum counts, U is the terminal beam uniformity.

7. A scanning magnet dynamic identification real-time segmentation slope feedback system is characterized by comprising:

the beam position distribution information acquisition module is used for acquiring beam position distribution information of beams in the horizontal and vertical directions;

the error information classification module is used for obtaining different types of error information according to the beam position distribution information;

the error optimization module is used for carrying out segmented slope feedback according to the error information to obtain an optimized power supply triangular wave excitation curve;

and the output feedback module is used for inputting the power supply triangular wave excitation curve into the magnet power supply, and obtaining new subsection slope feedback after the beam current passes through again until the scanning beam spot of the terminal meets the preset uniformity.

8. The system of claim 7, wherein the error optimization module comprises:

the positive and negative zero drift module is used for solving the deviation of the positive and negative half shafts through the positive and negative zero drift of the power waveform;

the zero-crossing intercept module is used for solving the problem of the bulge of a zero-crossing region through the zero-crossing intercept of the power waveform;

the segmentation slope optimization module is used for segmenting the power supply triangular wave after positive and negative zero drift and zero-crossing intercept correction according to the slope and optimizing the power supply triangular wave according to the segmentation result;

and the feedback module is used for sending the optimized power supply triangular wave to the power supply and the scanning magnet, and feeding back the result of the optimization of the segmentation slope after the beam passes through again.

9. A computer-readable storage medium having a computer program stored thereon, the computer program being executable by a processor to implement the scanning magnet dynamic identification real-time segment slope feedback method as claimed in any one of claims 1 to 6.

10. A computing device, comprising: one or more processors, memory, and one or more programs stored in the memory and configured to be executed by the one or more processors, the one or more programs comprising instructions for performing the scanning magnet dynamic recognition real-time segment slope feedback method of any of claims 1-6.

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