Physical dose measuring device for annular accelerator

Abstract

The invention relates to the technical field of dose measurement, and particularly discloses a circular accelerator physical dose measurement device, which comprises a mounting table, and is characterized in that the upper end surface of the mounting table is provided with a measurement assembly; the measuring assembly comprises fixing rings fixedly mounted on the upper end surface of the mounting table, and every two fixing rings form a group and are annularly arranged; by means of the CMOS detector in the measuring assembly, accurate detection of the dosage of the physical agent in the vacuum chamber is achieved, obtained data are sorted after detection is completed, and therefore a curve graph is generated, and an operator can visually observe the dosage of the physical agent. Besides, by means of a semiconductor detector and a scintillation detector, different protons, electrons and heavy ions in the physical medicament can be identified and classified, so that the characteristics of various substances are presented more effectively, and the understanding of workers on the dosage of the physical medicament is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of dose measurement, and more particularly to a physical dose measurement device for a cyclotron. Background Art

[0002] A physical dose measurement device for a cyclotron is a high-end device used to accurately measure and monitor the radiation dose in a particle accelerator. This device plays an important role in many fields such as modern scientific research, medical treatment, and industrial non-destructive testing.

[0003] With the continuous progress of science and technology, the application of particle accelerators has become more mature. The particles generated inside can be effectively used for the treatment of cancer patients, showing great application potential. However, due to the diversity of the usage environment, the application forms of particle accelerators are also different. For example, measuring physical drugs in a laboratory is a complex and cumbersome task, and experimenters often rely on accelerators for auxiliary measurement. However, traditional accelerator measurement devices can only measure a single component in the drug and cannot generate a planar or curved view of the detected drug dose. This results in subsequent data collation and the establishment of curve graphs still relying on manual processing by operators.

[0004] Therefore, we specifically propose a physical dose measurement device for a cyclotron. Summary of the Invention

[0005] The purpose of the present invention is to provide a physical dose measurement device for a cyclotron to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A physical dose measurement device for a cyclotron, including a mounting table, and a measurement component is provided on the upper end surface of the mounting table;

[0007] The measurement component includes fixed rings fixedly installed on the upper end surface of the mounting table, and the fixed rings are grouped in pairs and arranged in a ring shape;

[0008] An installation column is fixedly installed inside adjacent two of the fixed rings, and a rotating ring is rotatably installed on the circumferential surface of the installation column between adjacent two of the fixed rings, and the number of the rotating rings is three;

[0009] CMOS detectors are fixedly installed on the inner circumferential surface of the front rotating ring in a uniformly annular array, and semiconductor detectors and scintillation detectors are fixedly installed on the inner circumferential surface of the left and right rotating rings in a uniformly annular array;

[0010] An acceleration component is provided inside the installation column, and the vacuum chamber of the acceleration component is located inside the installation column.

[0011] Preferably, an arc-shaped groove rod is fixedly installed between adjacent installation columns, and a groove matching the arc-shaped groove rod is provided on the circumferential surface of the installation column.

[0012] With the above technical solution, through the precise cooperation between the arc-shaped groove rod and the groove, the rotation of the gear ring in subsequent operations can be realized.

[0013] Preferably, a gear ring is rotatably installed inside the groove and the arc-shaped groove rod. Tooth columns are fixedly installed in a circumferential array at the ends of the upper and lower gear rings away from each other. An inclined helical tooth groove is provided inside the rotating ring, and the helical tooth groove meshes with the tooth columns.

[0014] With the above technical solution, through the precise cooperation between the tooth columns of the gear ring and the helical tooth groove, the precise rotation of the rotating ring in subsequent operations can be realized. During the rotation process, the medicament feed flowing through can be comprehensively detected to avoid omission or failure to measure, thereby ensuring the measurement accuracy.

[0015] Preferably, an L-shaped fixing frame is fixedly installed on the outer circumferential surface of the installation table. A stepping motor is fixedly installed on the right side of the upper end of the L-shaped fixing frame. Gears are fixedly installed on the output shafts at both ends of the stepping motor, and the gears all pass through the arc-shaped groove rod and mesh with the gear ring.

[0016] With the above technical solution, the gear is driven by the stepping motor, and then the gear ring is pushed to rotate. This driving method enables the rotating ring to rotate, thereby realizing the overall measurement task.

[0017] Preferably, a plurality of support rods are fixedly installed in a circumferential array on the lower end surface of the installation table, and a power supply box is fixedly installed from the upper end surface to the lower end surface of the installation table.

[0018] With the above technical solution. Through the action of the support rods, the installation platform can be kept at a certain distance from the ground, so as to avoid the equipment in subsequent operations being too close to the ground, thereby preventing the equipment from being collided and ensuring the normal operation of the equipment.

[0019] Preferably, a vacuum injection pipe and a vacuum extraction pipe are fixedly installed on the circumferential surface of the vacuum chamber. The vacuum injection pipe and the vacuum extraction pipe are in a symmetric state. A first power chamber is fixedly installed on the circumferential surface of the vacuum injection pipe, and a second power chamber is fixedly installed on the circumferential surface of the vacuum extraction pipe.

[0020] With the above technical solution, the vacuum injection pipe can effectively introduce the medicament into the vacuum chamber. Under the action of the vacuum extraction pipe, the medicament can be smoothly separated from the vacuum chamber to ensure that the medicament does not remain in the vacuum chamber. In addition, with the synergistic effect of the first power chamber and the second power chamber, the medicament can enter and exit quickly.

[0021] Preferably, an injection magnet ring is fixedly installed on the outer side of the position where the vacuum chamber and the vacuum injection pipe are fixedly connected, and injection electrostatic deflection plates are fixedly installed at both ends of the injection magnet ring on the outside of the vacuum chamber.

[0022] With the above technical solution, by using the injection magnet ring and the injection electrostatic deflection plates, the speed and direction of the medicament entering the vacuum cavity can be adjusted, so that the medicament can smoothly enter the vacuum cavity.

[0023] Preferably, a lead-out magnet ring is fixedly installed on the outer side of the position where the vacuum chamber and the vacuum lead-out pipe are fixedly connected, and lead-out electrostatic deflection plates are fixedly installed at both ends of the lead-out magnet ring on the outside of the vacuum chamber.

[0024] With the above technical solution, under the action of the lead-out magnet ring and the electrostatic guiding plate, the medicament after measurement can be effectively guided, and the direction can be adjusted through the electrostatic deflection plates, so as to smoothly enter the inside of the vacuum lead-out pipe and achieve effective separation from the vacuum chamber.

[0025] Preferably, three third power chambers are fixedly installed in a uniform circumferential array on the outer circumferential surface of the vacuum chamber.

[0026] With the above technical solution, the third power chamber can make the medicament inside the vacuum chamber flow at a high speed, avoiding the long-term retention of the medicament at a certain position, thereby ensuring the improvement of the measurement efficiency.

[0027] Preferably, a focusing magnet is fixedly installed at one end of the third power chamber on the outer circumferential surface of the vacuum chamber, and a guiding magnet is fixedly installed at one end of the focusing magnet on the outer circumferential surface of the vacuum chamber.

[0028] With the above technical solution, the focusing magnet can gather the scattered medicament together, which can facilitate the detection of the medicament dosage, and thus facilitate the detection of the medicament dosage. Under the action of the guiding magnet, the movement trajectory of the medicament dosage does not form a straight-line movement, but always moves along the predetermined path inside the vacuum chamber.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] 1. The present invention uses the CMOS detector in the measurement component to achieve precise detection of the physical medicament dosage in the vacuum chamber, and sorts out the acquired data after the detection is completed, so as to generate a curve graph, enabling the operator to intuitively observe the physical medicament dosage. In addition, with the help of the semiconductor detector and the scintillation detector, different protons, electrons and heavy ions in the physical medicament can be identified and classified, so as to more effectively present the characteristics of various substances and enhance the staff's understanding of the physical medicament dosage.

[0031] 2. The present invention drives the upper and lower sets of gear rings to rotate through a stepping motor. During the rotation of the gear rings, the tooth columns are driven to rotate synchronously. The rotation of the tooth columns further drives the mounting columns to rotate. When the mounting columns rotate, the CMOS detector, semiconductor detector, and scintillator detector also rotate synchronously, thereby performing a full 360-degree detection on the physical agent passing through the vacuum chamber to ensure that there is no insufficient detection of the physical agent.

[0032] 3. In the present invention, under the action of the injection magnet ring, injection electrostatic deflector, extraction magnet ring, and extraction electrostatic deflector, the smooth flow of the physical agent inside and outside the vacuum chamber can be effectively achieved, thereby avoiding the retention of the agent in the vacuum chamber, reducing the potential damage to the vacuum chamber, and reducing the need for subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific embodiments and technical solutions of the present invention, the following will briefly introduce the drawings required for the description of the specific embodiments and the prior art.

[0034] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0035] Figure 2 It is a schematic diagram of the mounting table of the present invention;

[0036] Figure 3 It is a schematic diagram of the rotating ring of the present invention;

[0037] Figure 4 It is a schematic diagram of the acceleration component of the present invention;

[0038] Figure 5 It is a structural diagram of the measurement component of the present invention;

[0039] Figure 6 It is a partial structural diagram of the measurement component of the present invention;

[0040] Figure 7 It is a schematic diagram of the CMOS detector of the present invention;

[0041] Figure 8 It is a schematic diagram of the semiconductor detector of the present invention;

[0042] Figure 9 It is a schematic diagram of the scintillator detector of the present invention.

[0043] Description of the reference numerals:

[0044] 1. Mounting table; 101. Support rod; 102. Power supply box; 103. L-shaped fixing bracket; 104. Stepping motor; 105. Gear

[0045] 2. Measuring Component; 201. Fixed Ring; 202. Mounting Post; 203. Groove; 204. Rotating Ring; 205. CMOS Detector; 206. Semiconductor Detector; 207. Scintillator Detector; 208. Arc Groove Rod; 209. Gear Ring; 210. Tooth Post; 211. Helical Groove

[0046] 3. Acceleration Component; 301. Vacuum Chamber; 302. Vacuum Injection Tube; 303. Vacuum Extraction Tube; 304. First Power Chamber; 305. Second Power Chamber; 306. Injection Magnet Ring; 307. Injection Electrostatic Deflection Plate; 308. Extraction Magnet Ring; 309. Extraction Electrostatic Deflection Plate; 310. Third Power Chamber; 311. Focusing Magnet; 312. Guide Magnet Specific Embodiment

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention

[0048] Please refer to Figures 1 to 9 , the present invention provides a technical solution

[0049] A physical dose measurement device for a circular accelerator includes a mounting table 1. A plurality of support rods 101 are fixedly installed in a circular array near the edge of the lower end surface of the mounting table 1. The support rods 101 are used to keep the mounting table 1 away from the ground. As Figure 2 shown, and then a power supply box 102 is fixedly installed from the upper end surface to the lower end surface of the mounting table 1. Secondly, an L-shaped fixing frame 103 is fixedly installed on the circumferential surface of the mounting table 1. A stepping motor 104 is fixedly installed at the upper right end of the upper part of the L-shaped fixing frame 103. Among them, both ends of the stepping motor 104 have output shafts, and gears 105 are fixedly installed on the output shafts at both ends. As Figure 2 shown

[0050] During use, the support rods 101 are used to keep the mounting table 1 away from the ground, and the power supply box 102 is used to increase the power of the components for subsequent operations, so as to avoid the situation where the equipment cannot operate. It should be noted that the power supply box 102 can be electrically connected to external power to ensure that the power supply box 102 has sufficient power. The output shaft of the stepping motor 104 can drive the gear 105 to rotate forward and backward

[0051] On the upper end surface of the installation table 1, fixing rings 201 are evenly and fixedly installed in an annular array. Among them, the number of fixing rings 201 is six, and the fixing rings 201 are grouped in pairs. It should be noted that anti-static vertical rods are fixedly installed on the circumferential surface of the fixing ring 201, and the lower ends of the anti-static vertical rods are fixedly connected to the upper end surface of the installation table 1, as Figure 1 shown. Then, between the interiors of two adjacent fixing rings 201, an installation column 202 is fixedly installed in common. Among them, the structure of the installation column 202 is that the interior is in a cavity state and both ends are in a through state. Moreover, the circumferential surface of the installation column 202 is in a through state to the interior, as Figure 7 shown.

[0052] An arc-shaped groove rod 208 is fixedly installed between two adjacent installation columns 202. Among them, two arc-shaped groove rods 208 are fixedly installed between two adjacent installation columns 202, and the openings of the arc-shaped groove rods 208 are in opposite states. Then, a groove 203 is opened on the circumferential surface of the installation column 202, and the groove 203 is in a through state with two adjacent arc-shaped groove rods 208, as Figure 6 shown. Secondly, a gear ring 209 is rotatably installed in common in the groove 203 and the arc-shaped groove rod 208, and the gear 105 passes through the U-shaped notch opened in the arc-shaped groove rod 208 and is in a meshing state with the tooth grooves on the circumferential surface of the internal gear ring 209.

[0053] Therefore, during use, when the gear 105 rotates, it can drive the gear ring 209 to rotate inside the arc-shaped groove rod 208 and the groove 203.

[0054] On the end surfaces of the two gear rings 209 away from each other, vertical tooth columns 210 are evenly and fixedly installed in an annular array. And a rotating ring 204 is rotatably installed on the circumferential surface of the installation column 202. Among them, the inner diameter of the rotating ring 204 is larger than the diameters of both ends of the opening. Therefore, the inner circumferential surface of the rotating ring 204 will not fit with the outer circumferential surface of the installation column 202. Then, a helical tooth groove 211 is opened from one end to the other end of the rotating ring 204. Among them, the tooth groove of the helical tooth groove 211 is larger than the inner diameter of the rotating ring 204, as Figure 7 shown, and the helical tooth groove 211 is in a meshing state with the tooth column 210.

[0055] Therefore, during use, when the gear ring 209 drives the tooth column 210 to rotate, it can drive the rotating ring 204 to rotate 360 degrees on the circumferential surface of the installation column 202.

[0056] However, a CMOS detector 205, a semiconductor detector 206, and a scintillation detector 207 are respectively and fixedly installed on the inner circumferential surfaces of the three swivel rings 204. Among them, during use, the CMOS detector 205 can scan the distribution curve of the current drug dose, while the semiconductor detector 206 uses the high sensitivity and high resolution of the conductor material to detect information such as the trajectory, energy, and charge of particles, and can detect various charged particles such as electrons, protons, and heavy ions, so as to obtain different doses in the material drug; among them, the semiconductor detector 206 has the characteristics of high energy resolution, high detection efficiency, and fast response; during use, it can quickly measure the passing drug dose to avoid omission and non-measurement.

[0057] The scintillation detector 207 (is a detector that uses the flashes generated by ionizing radiation in certain substances to detect ionizing radiation, and is widely used in physical experiments, medical imaging, nuclear radiation monitoring and other fields. Its working principle is based on the scintillation phenomenon, that is, when high-energy particles or electromagnetic radiation interact with the scintillation material inside the detector, the scintillation material will absorb energy and release optical signals). When high-energy particles (such as γ-rays, X-rays) hit the scintillator, it causes ionization and excitation of atoms or molecules, and then visible light photons are emitted. The scintillation photons are received by a photomultiplier tube and converted into electrical signals, which are amplified and processed by an electronic system, and finally an electrical pulse signal is output for subsequent data acquisition and analysis. Moreover, during use, the scintillation detector 207 can detect the physical dose without damage.

[0058] During use, since the CMOS detector 205, the semiconductor detector 206, and the scintillation detector 207 are all fixedly installed on the inner circumferential surface of the swivel ring 204, during use, as the swivel ring 204 rotates, the CMOS detector 205, the semiconductor detector 206, and the scintillation detector 207 will move synchronously, and during the movement, they can detect the physical drug inside the vacuum chamber 301 in all directions of 360 degrees to avoid data errors.

[0059] An acceleration component 3 is provided inside and outside the measurement component 2. Among them, the vacuum chamber 301 in the acceleration component 3 is located inside the three fixed rings 201 and the mounting column 202. The vacuum chamber 301 is of an annular structure, as Figure 3 shown.

[0060] A vacuum injection tube 302 is fixedly installed on the outer side of the vacuum chamber 301. The vacuum injection tube 302 and the vacuum extraction tube 303 are in a symmetric state. Moreover, a first power chamber 304 is fixedly installed on the outer circumferential surface of the vacuum injection tube 302, and a second power chamber 305 is fixedly installed on the outer circumferential surface of the vacuum extraction tube 303.

[0061] During the use process, the first power chamber 304 and the second power chamber 305 are electrically connected to the power supply box 102. Then, the vacuum injection tube 302 and the vacuum extraction tube 303 are in a through state with the vacuum chamber 301. Physical agents are injected into the interior of the vacuum chamber 301 through the vacuum injection tube 302. Under the action of the first power chamber 304, the speed of the agents can be increased. Under the action of the vacuum extraction tube 303, the physical agents inside the vacuum chamber 301 can be extracted, avoiding the situation of agent accumulation inside the vacuum chamber 301.

[0062] At the position where the vacuum injection tube 302 is fixedly connected to the vacuum chamber 301, an injection magnet ring 306 is fixedly installed. At both ends of the injection magnet ring 306, injection electrostatic deflection plates 307 are fixedly installed on the outside of the vacuum chamber 301. During the use process, when the physical agents enter the interior of the vacuum chamber 301, their speed can be increased under the action of the injection magnet ring 306, and then the direction of the physical agents can be adjusted under the action of the injection electrostatic deflection plates 307, thus avoiding the situation of the agents sticking to the inner wall of the vacuum chamber 301.

[0063] At the position where the vacuum extraction tube 303 is fixedly connected to the vacuum chamber 301, an extraction magnet ring 308 is fixedly installed. At both ends of the extraction magnet ring 308, extraction electrostatic deflection plates 309 are fixedly installed on the outside of the vacuum chamber 301.

[0064] During the use process, after the measurement of the physical agents is completed, the agents inside the vacuum chamber 301 need to be extracted. At this time, under the action of the extraction electrostatic deflection plates 309, the moving direction of the agents can be changed, so that they can enter the interior of the vacuum extraction tube 303, and then further acceleration operation is performed under the action of the extraction magnet ring 308, so that the agents are separated from the interior of the vacuum chamber 301.

[0065] On the circumferential surface of the vacuum chamber 301, a third power chamber 310 is fixedly installed in a uniformly annular array. The third power chamber 310 is electrically connected to the power supply box 102, so that the third power chamber 310 can operate normally. During the use process, the third power chamber 310 generates a magnetic field that passes through the vacuum chamber 301 and enters its interior. Therefore, the physical agents inside the vacuum chamber 301 can be in a state of high-speed movement, making it convenient for measurement.

[0066] On the outer circumferential surface of the vacuum chamber 301, on one side of the third power chamber 310, a focusing magnet 311 is fixedly installed. The focusing magnet 311 is used to make the dispersed agents aggregate together, so that the agents can form a whole, facilitating the high-speed movement of the agents and subsequent measurement.

[0067] Outside the vacuum chamber 301, a guiding magnet 312 is fixedly installed at one end of the focusing magnet 311 away from the third power chamber 310. The guiding magnet 312 is used to adjust the direction of the medicament to avoid the linear motion state of the medicament, thus affecting the measurement situation.

[0068] Working principle: First, before use, the vacuum injection tube 302 and the vacuum extraction tube 303 in the acceleration assembly 3 need to be connected to external devices. Then, the medicament is injected into the interior of the vacuum chamber 301 through the vacuum injection tube 302. During the injection process, the direction and speed of the medicament can be adjusted under the action of the injection magnet ring 306 and the injection electrostatic deflector 307.

[0069] At this time, under the action of the power supply box 102, the third power chamber 310, the focusing magnet 311, and the guiding magnet 312 can perform operations. Then, the medicament will rotate at a high speed inside the vacuum chamber 301.

[0070] During the rotation of the medicament, the stepping motor 104 is started. The output shaft of the stepping motor 104 drives the gear 105 to rotate. The gear 105 drives the gear ring 209 to rotate. During the rotation of the gear ring 209, it can drive the tooth column 210 to rotate synchronously. Under the action of the tooth column 210, the rotating ring 204 can be rotated, so that the CMOS detector 205, the semiconductor detector 206, and the scintillation detector 207 can detect the medicament dose passing by, thereby obtaining different data.

[0071] Then, after the measurement operation is completed, under the action of the extraction electrostatic deflector 309 and the extraction magnet ring 308, the medicament can enter the interior of the vacuum extraction tube 303 and then be separated, thus completing the measurement operation of the medicament.

[0072] 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 foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A circular accelerator physical dose measurement device, comprising a mounting platform (1), characterized in that: The upper end surface of the mounting platform (1) is provided with a measuring component (2); The measuring assembly (2) comprises a fixing ring (201) fixedly mounted on the upper end surface of the mounting platform (1), wherein the fixing rings (201) are arranged in groups of two and in a ring shape; A mounting column (202) is fixedly mounted inside two adjacent fixing rings (201), and a rotating ring (204) is rotatably mounted on the circumferential surface of the mounting column (202) between the two adjacent fixing rings (201), and the number of the rotating rings (204) is three; CMOS detectors (205) are evenly fixedly mounted in an annular array on the inner circumferential surface of the rotating ring (204) at the front end, and semiconductor detectors (206) and scintillator detectors (207) are evenly fixedly mounted in annular array on the inner circumferential surfaces of the rotating ring (204) at the left and right ends; An acceleration component (3) is commonly provided inside the installation column (202), and a vacuum chamber (301) of the acceleration component (3) is located inside the installation column (202).

2. A circular accelerator physical dose measurement device according to claim 1, characterized in that: An arc-shaped groove rod (208) is fixedly installed between adjacent installation columns (202), and a groove (203) matching the arc-shaped groove rod (208) is provided on the circumferential surface of the installation column (202).

3. A circular accelerator physical dose measurement device according to claim 2, characterized in that: A gear ring (209) is installed inside the groove (203) and the arc-shaped groove rod (208) for joint rotation, and gear columns (210) are evenly fixedly installed in a circular array at one end of the upper and lower gear rings (209) that are away from each other, and an inclined bevel groove (211) is provided inside the rotating ring (204), and the bevel groove (211) is meshed with the gear column (210).

4. The circular accelerator physical dose measurement device according to claim 1, characterized in that: An L-shaped fixing frame (103) is fixedly mounted on the outer circumferential surface of the mounting platform (1), a stepping motor (104) is fixedly mounted on the right side of the upper end of the L-shaped fixing frame (103), gears (105) are fixedly mounted on output shafts at both ends of the stepping motor (104), and the gears (105) are meshed through arc-shaped groove rods (208) and gear rings (209).

5. The circular accelerator physical dose measurement device according to claim 1, characterized in that: A plurality of support rods (101) are evenly fixedly mounted in an annular array on the lower end surface of the mounting platform (1), and a power supply box (102) is fixedly mounted from the upper end surface to the lower end surface of the mounting platform (1).

6. The circular accelerator physical dose measurement device according to claim 1, characterized in that: A vacuum injection tube (302) and a vacuum extraction tube (303) are fixedly mounted on the circumferential surface of the vacuum chamber (301); the vacuum injection tube (302) and the vacuum extraction tube (303) are in a symmetrical state; a first power chamber (304) is fixedly mounted on the circumferential surface of the vacuum injection tube (302); and a second power chamber (305) is fixedly mounted on the circumferential surface of the vacuum extraction tube (303).

7. A circular accelerator physical dose measurement device according to claim 6, characterized in that: An injection magnet ring (306) is fixedly installed on the outer side of the position where the vacuum chamber (301) and the vacuum injection tube (302) are fixedly connected, and injection electrostatic deflection plates (307) are fixedly installed at both ends of the injection magnet ring (306) located outside the vacuum chamber (301).

8. The circular accelerator physical dose measurement device according to claim 1, characterized in that: An extraction magnet ring (308) is fixedly installed on the outer side surface of the position where the vacuum chamber (301) and the vacuum extraction tube (303) are fixedly connected, and extraction electrostatic deflection plates (309) are fixedly installed at both ends of the extraction magnet ring (308) located outside the vacuum chamber (301).

9. The circular accelerator physical dose measurement device according to claim 1, characterized in that: The third power chambers (310) are evenly and fixedly installed in an annular array on the outer circumferential surface of the vacuum chamber (301), and the number of the third power chambers (310) is three.

10. A circular accelerator physical dose measurement device according to claim 9, characterized in that: A focusing magnet (311) is fixedly mounted on the outer circumferential surface of the vacuum chamber (301) at one end of the third power chamber (310), and a guide magnet (312) is fixedly mounted on the outer circumferential surface of the vacuum chamber (301) at one end of the focusing magnet (311).

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