A target state real-time monitoring device
Patent Information
- Application Number
- CN202311367568.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-22
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2043-10-22
AI Technical Summary
[0004]然而,现有技术中的靶状态监测系统通常采用热电偶等装置对靶的温度进行监测,该监测方式只能反馈靶的冷却情况,不能观察到靶的全貌,对靶状态的监测参数比较单一,而且由于质子轰击锂靶产生中子,同时会伴有γ射线等多种射线辐射,这对于热电偶等零件的抗辐照、抗干扰能力要求较高,即便布置多组热电偶,也难以获得整个靶面的束斑情况,无法确定质子束打到靶面是否发生偏移,此外,由于这种监测方式的不可视性,在运行期间,操作人员不能对靶的物理状态是否发生破坏进行监测
[0019]根据本发明的靶状态实时监测装置具有如下有益的技术效果:通过转像镜体对靶体被质子束流轰击时其靶面形成的反射光反射至透射镜体,反射光贯穿透射镜体以被成像单元捕获,以供操作人员观察靶体被质子束流轰击的靶面物理状态,从而实现观察靶面的束斑情况以及确定质子束流轰击到靶面是否发生偏移,并实现了实时监测靶体是否发生破坏,从而能够在发现束斑及靶体发生异常后尽快停止运行,及时阻止BNCT在运行期间可能发生的故障。
Smart Images

Figure CN117388910B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of target status monitoring technology, and in particular to a real-time target status monitoring device. Background Technology
[0002] Accelerator-based BNCT (AB-BNCT) is one of the most advanced cancer treatment methods internationally. BNCT is a targeted, cell-level precision radiotherapy that combines radiation and drugs. Currently, the main neutron generation targets used in accelerator-based BNCT are lithium and beryllium. Lithium has a higher neutron yield than beryllium in the low-energy range. In addition, lithium has a low reaction threshold with protons, requiring lower proton energy from the accelerator. The neutrons produced are also easier to slow down to the hyperthermic neutrons needed for treatment than those produced by beryllium targets. Therefore, lithium is a target material with excellent neutron performance, and solid-state lithium targets are usually the primary neutron generation targets.
[0003] During BNCT treatment, it is necessary to monitor the shape and position of the beam spot formed on the target in real time. This allows for timely feedback on the position and divergence of the proton beam, preventing beam loss due to beam displacement and radiation damage to components. Beam spot monitoring also serves as a beam characteristic monitoring standard to determine if there are any abnormalities in the accelerator section or the beam diffusion device at the accelerator end. If any abnormalities are detected in the beam spot or the target itself, the treatment should be stopped immediately to prevent potential malfunctions during BNCT operation.
[0004] However, existing target condition monitoring systems typically use thermocouples and other devices to monitor the target temperature. This monitoring method can only provide feedback on the target's cooling status and cannot observe the entire target. The monitoring parameters for the target condition are relatively limited. Furthermore, since protons bombard lithium targets to produce neutrons, they are accompanied by various types of radiation, such as gamma rays. This places high demands on the radiation resistance and interference resistance of components such as thermocouples. Even with multiple sets of thermocouples, it is difficult to obtain the beam pattern across the entire target surface and determine whether the proton beam has deviated from the target surface. In addition, due to the lack of visibility in this monitoring method, operators cannot monitor whether the physical state of the target has been damaged during operation.
[0005] In view of this, it is necessary to improve the existing target status monitoring system to solve the above problems. Summary of the Invention
[0006] The purpose of this invention is to provide a target state real-time monitoring device to address the many shortcomings of existing target state monitoring systems, especially to capture the reflected light generated when the target is bombarded by a proton beam, so as to monitor the physical state of the target under proton beam bombardment in real time.
[0007] According to a first aspect of the present invention, a target state real-time monitoring device is provided, comprising: a vacuum pipe, a target disposed at the free end of the vacuum pipe, and a monitoring mechanism disposed at the end of the vacuum pipe away from the target.
[0008] The monitoring mechanism includes: an imaging unit, an adjustment unit that radially penetrates the vacuum pipe and partially extends into the vacuum pipe, and an image-rotating mirror disposed at one end of the adjustment unit extending into the vacuum pipe, the image-rotating mirror being radially corresponding to the position of the imaging unit.
[0009] The vacuum pipe has a transmission mirror embedded in its inner wall on the side closest to the monitoring mechanism. The transmission mirror is formed radially between the imaging unit and the rotating mirror. The rotating mirror is used to reflect the reflected light generated by the target to the transmission mirror. The reflected light passes through the transmission mirror and is captured by the imaging unit.
[0010] According to the present invention, in some embodiments, the image-rotating mirror body is configured as a gold-plated reflector.
[0011] According to the present invention, in some embodiments, the vacuum pipe forms a proton channel for the transmission of a proton beam, the proton beam being incident in a diffuse manner within the proton channel, and the image-rotating mirror being located within the proton beam inrush section of the proton channel and close to the inner wall of the vacuum pipe in a radial direction.
[0012] According to the present invention, in some embodiments, the side wall of the vacuum pipe near the monitoring mechanism protrudes radially outward to form a fixing part; the imaging unit is disposed at the free end of the fixing part, and the transmission lens is embedded in the fixing part and is arranged radially corresponding to the position of the imaging unit.
[0013] According to the present invention, in some embodiments, the fixing part is radially recessed to form an inward recess for the transmission lens body to be fitted, and a connecting cover is radially abutting the transmission lens body and sealingly connected to the fixing part.
[0014] According to the present invention, in some embodiments, the fixing part is configured to provide a transmission channel for the transmission of the reflected light, the lens barrel portion of the imaging unit is radially embedded in the connecting cover and extends into the transmission channel, and the transmission lens body is formed inside the transmission channel.
[0015] According to the present invention, in some embodiments, the vacuum conduit is composed of a monitoring conduit and an adjusting conduit connected in an axially sealed manner; the target is disposed at the end of the adjusting conduit away from the monitoring conduit, and the monitoring mechanism is disposed at the end of the monitoring conduit away from the adjusting conduit.
[0016] According to the present invention, in some embodiments, the adjustment unit includes: a lens frame extending through the sidewall of the fixing part and into the monitoring pipe, one end of the lens frame extending into the monitoring pipe being rotatably connected to a lens frame, and an adjustment member extending radially through the sidewall of the fixing part to drive the lens frame to rotate, wherein the image-rotating lens body is disposed on the lens frame.
[0017] According to the present invention, in some embodiments, the adjusting member drives the lens frame to rotate in the lens frame to adjust the angle at which the rotating mirror reflects the reflected light, and the rotating mirror reflects the reflected light formed by the target to the transmission mirror inside the transmission channel.
[0018] According to the present invention, in some embodiments, the monitoring mechanism further includes: a support ring sleeved on the monitoring pipe and radially penetrated by the fixing part; a shielding shell surrounding the outside of the imaging unit; and a support rod disposed on the support ring and penetrating the shielding shell to connect the imaging unit.
[0019] The target state real-time monitoring device according to the present invention has the following beneficial technical effects: the reflected light formed on the target surface when the target is bombarded by the proton beam is reflected to the transmission mirror by the image-rotating mirror. The reflected light passes through the transmission mirror and is captured by the imaging unit, so that the operator can observe the physical state of the target surface when the target is bombarded by the proton beam. This allows for observation of the beam spot on the target surface and determination of whether the proton beam has deviated when it hits the target surface. It also enables real-time monitoring of whether the target has been damaged. This allows the device to stop operation as soon as possible after abnormalities in the beam spot and the target are detected, thus preventing possible failures of BNCT during operation. Attached Figure Description
[0020] Figure 1 A three-dimensional view of the target status real-time monitoring device.
[0021] Figure 2 This is an axial cross-sectional view of the target status real-time monitoring device.
[0022] Figure 3 This is an axial cross-sectional view of the target status real-time monitoring device from another perspective.
[0023] Figure 4 for Figure 2 Sectional view along the BB direction.
[0024] Figure 5 for Figure 2 Enlarged view of a section at point A in the middle circle. Implementation
[0025] To make the objectives, technical solutions, and advantages of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.
[0026] Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar words used in the specification and claims of this patent application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "inner," "outer," "upper," "lower," "far," "near," "front," and "rear" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes. The drawings in this disclosure are not strictly drawn to scale; the specific dimensions and quantity of each structure can be determined according to actual needs. The drawings described in this disclosure are merely structural schematic diagrams.
[0027] Please refer to Figures 1 to 5 This invention provides a specific embodiment of a target state real-time monitoring device 100. The term "axial direction" refers to... Figure 1 The direction indicated by the central axis P.
[0028] For example, the proton beam accelerated by the accelerator (not shown) flows along the vacuum pipe 10. Figure 2is bombarded onto the target 20 in the direction indicated by arrow P1 (the material of the target 20 is preferably a lithium target). After the high-intensity proton beam bombards the target 20, most of the energy is deposited on the target 20 in the form of heat. The temperature of the area of the target 20 bombarded by the proton beam is significantly higher than the temperature of the area not bombarded by the proton beam. When the heat deposited on the target 20 cannot be transferred away in time, the temperature of the target 20 rises due to heat concentration. When the temperature rises above the melting point, the target 20 will melt, and even the lithium film (not marked) contained in the target 20 will rupture. The damage of the target 20 will lead to a significant drop in neutron yield, which directly affects the therapeutic effect. The rupture of the lithium film (not marked) will also cause fluctuations in the vacuum degree of the vacuum pipeline 10 and contaminate the interior of the vacuum pipeline 10. Compared with the target state monitoring systems in the prior art that use devices such as thermocouples to monitor the temperature of the target, this real-time target state monitoring device 100 uses the image rotating mirror 33 disposed inside the vacuum pipeline 10 to reflect the reflected light formed on the target surface 21 of the target 20 when it is bombarded by the proton beam to the transmissive mirror 101. The reflected light passes through the transmissive mirror 101 to be captured by the imaging unit 31, so that the operator can observe the physical state of the target surface 21 of the target 20 bombarded by the proton beam, thereby realizing the observation of the beam spot condition on the target surface 21 and determining whether the proton beam bombardment on the target surface 21 is offset, and realizing real-time monitoring of whether the target 20 is damaged. Therefore, the operation can be stopped as soon as possible after an abnormality is found in the beam spot and the target 20, and possible failures of BNCT during operation can be prevented in time.
[0029] See Figures 1 to 5 as shown, this real-time target state monitoring device 100 includes a vacuum pipeline 10, a target 20 disposed at the free end of the vacuum pipeline 10, and a monitoring mechanism 30 disposed at the end of the vacuum pipeline 10 away from the target 20. The monitoring mechanism 30 includes an imaging unit 31, an adjustment unit 32 that radially penetrates the vacuum pipeline 10 and partially extends into the vacuum pipeline 10, and an image rotating mirror 33 disposed at the end of the adjustment unit 32 extending into the vacuum pipeline 10. The image rotating mirror 33 and the imaging unit 31 are arranged in radial correspondence. The vacuum pipeline 10 is configured with a proton channel 102 for proton beam transmission. The proton beam accelerated by the accelerator (not shown) travels along the inside of the proton channel 102 Figure 2 and exits in the direction indicated by arrow P1, and the target 20 faces the end of the proton beam, so that the proton beam can directly bombard the target 20 (the material of the target 20 is preferably a lithium target). The side of the target 20 bombarded by the proton beam is the target surface 21.
[0030] A transmissive mirror body 101 is embedded in the pipe wall on the side of the vacuum pipe 10 adjacent to the monitoring mechanism 30, the transmissive mirror body 101 is formed radially between the imaging unit 31 and the image rotation mirror body 33, the image rotation mirror body 33 is configured to reflect the reflected light formed by the target body 20 to the transmissive mirror body 101, and the reflected light passes through the transmissive mirror body 101 to be captured by the imaging unit 31. After a high-intensity proton beam bombards the target body 20, most of the energy is deposited on the target body 20 in the form of heat. The reflected light formed by the target surface 21 is reflected to the transmissive mirror body 101 via the image rotation mirror body 33, and the reflected light passes through the transmissive mirror body 101 to be captured by the imaging unit 31, so that an operator can observe the physical state of the target surface 21 of the target body 20 bombarded by the proton beam, thereby realizing observation of the beam spot condition on the target surface 21 and determining whether the proton beam bombarding the target surface 21 is offset, as well as realizing real-time monitoring of whether the target body 20 is damaged, so that the operation can be stopped as soon as possible after an abnormality is found in the beam spot and the target body 20, and possible failures of BNCT during operation can be prevented in time.
[0031] It should be noted that, preferably, the image rotation mirror body 33 is configured as a gold-plated reflecting mirror, which can improve the reflectivity in the infrared band and is insensitive to the incident angle; the imaging unit 31 is configured as an infrared thermal imager; the transmissive mirror body 101 is made of quartz glass or germanium glass with high infrared transmittance. Thereby, the image rotation mirror body 33 reflects the infrared light formed by the target body 20, the infrared light then passes through the transmissive mirror body 101 to be captured by the imaging unit 31, and the image rotation mirror body 33 prevents the imaging unit 31 from directly measuring the target body 20, so as to prevent the imaging unit 31 from being affected by radiation of various rays such as neutrons, scattered protons and gamma rays generated when the target body 20 is bombarded by the proton beam, thereby reducing the failure and damage rate of the imaging unit 31 and prolonging the service life of the imaging unit 31.
[0032] Reference Figure 4 to Figure 5 the illustration, a fixing portion 111 is formed by protruding radially outward on the pipe wall of the side of the vacuum pipe 10 adjacent to the monitoring mechanism 30; the imaging unit 31 is disposed at the free end of the fixing portion 111, and the transmissive mirror body 101 is embedded in the fixing portion 111 and arranged to correspond to the position of the imaging unit 31 in the radial direction. The imaging unit 31 is mounted on the fixing portion 111, which supports the imaging unit 31 and positions the imaging unit 31 outside the vacuum pipe 10. The infrared light formed by the target body 20 is transmitted radially to the imaging unit 31 through the transmissive mirror body 101, so that the imaging unit 31 can capture the infrared light, for an operator to observe the physical state of the target surface 21 of the target body 20 bombarded by the proton beam, and further reduce the radiation influence of the high-dose radiation environment around the target body 20 on the imaging unit 31.
[0033] Reference Figure 5As shown, the fixing portion 111 is recessed radially inward to form a recessed portion 112 for embedding the transmissive mirror body 101, and an engaging cover 113 that radially abuts against the transmissive mirror body 101 and is sealingly connected to the fixing portion 111. The transmissive mirror body 101 is embedded and installed through the recessed portion 112, and then the transmissive mirror body 101 is radially abutted by the engaging cover 113, so as to improve the sealing performance at the connection between the transmissive mirror body 101, the recessed portion 112 and the engaging cover 113, and avoid affecting the vacuum degree inside the vacuum pipeline 10. Alternatively, the recessed portion 112 and the engaging cover 113 can be sealingly connected by means of flanges or the like, so as to ensure the vacuum degree inside the vacuum pipeline 10.
[0034] Reference Figure 4 to Figure 5 As shown, the fixing portion 111 is configured with a transmission channel 110 for the transmission of reflected light (i.e., infrared light formed by the target 20), the lens barrel 311 part included in the imaging unit 31 is radially embedded in the engaging cover 113 and extends into the transmission channel 110, and the transmissive mirror body 101 is formed inside the transmission channel 110. The lens barrel 311 part is radially embedded in the engaging cover 113 and fixedly connected to the engaging cover 113, so as to ensure the mounting stability of the imaging unit 31 and the fixing portion 111. The infrared light formed by the target 20 is reflected by the image transfer mirror body 33, the infrared light will be transmitted in the transmission channel 110 and pass through the transmissive mirror body 101 to be captured by the imaging unit 31, so that the operator can observe the physical state of the target surface 21 of the target 20 bombarded by the proton beam.
[0035] Reference Figure 1 to Figure 2 As shown, the vacuum pipeline 10 is formed by sealingly connecting the monitoring pipeline 11 and the adjusting pipeline 12 in the axial direction; the target 20 is arranged at the end of the adjusting pipeline 12 away from the monitoring pipeline 11, and the monitoring mechanism 30 is arranged at the end of the monitoring pipeline 11 away from the adjusting pipeline 12. The monitoring pipeline 11 and the adjusting pipeline 12 are sealingly connected in the axial direction. Alternatively, the monitoring pipeline 11 and the adjusting pipeline 12 can be sealingly connected by means of flanges or the like, so as to ensure the connection tightness between the monitoring pipeline 11 and the adjusting pipeline 12 and the vacuum degree inside the vacuum pipeline 10. In actual use, the length of the adjusting pipeline 12 can be selected according to requirements, so as to improve the flexibility of the vacuum pipeline 10 for use in spaces of different sizes.
[0036] Reference Figure 4 to Figure 5As shown, the adjustment unit 32 comprises: a lens holder 321 penetrating through the side wall of the fixing portion 111 and extending into the monitoring pipeline 11, one end of the lens holder 321 extending into the monitoring pipeline 11 is rotatably connected to a lens frame 322, and an adjustment member 323 radially penetrating through the side wall of the fixing portion 111 to drive the lens frame 322 to rotate, wherein the image rotating mirror body 33 is disposed on the lens frame 322. When the length of the adjustment pipeline 12 changes, the distance between the target body 20 and the image rotating mirror body 33 will also change. To avoid affecting the imaging unit 31 monitoring the physical state of the target body 20, the adjustment member 323 is rotated to adjust the inclination angle of the lens frame 322 on the lens holder 321, so as to synchronously control the inclination angle of the image rotating mirror body 33, such that the image rotating mirror body 33 can completely reflect the infrared light formed by the target body 20 to the transmissive mirror body 101, and the imaging unit 31 captures the infrared light, thereby realizing the imaging unit 31 monitoring the physical state of the target body 20 at the end of the adjustment pipeline 12 with different lengths.
[0037] Specifically, the adjustment member 323 drives the lens frame 322 to rotate on the lens holder 321 to adjust the angle at which the image rotating mirror body 33 reflects the reflected light, and the image rotating mirror body 33 reflects the reflected light formed by the target body 20 to the transmissive mirror body 101 inside the transmission channel 110. By controlling the adjustment member 323 to rotate relative to the fixing portion 111, the lens frame 322 is driven to rotate on the lens holder 321, so as to adjust the inclination angle of the image rotating mirror body 33 to control the angle at which the image rotating mirror body 33 reflects the reflected light (that is, the infrared light formed by the target body 20), so that the image rotating mirror body 33 can completely reflect the infrared light formed by the target body 20 to the transmissive mirror body 101 inside the transmission channel 110, to be captured by the imaging unit 31, thereby realizing the imaging unit 31 monitoring the physical state of the target body 20 at the end of the adjustment pipeline 12 with different lengths.
[0038] Refer Figure 3 As shown, the proton beam is incident in a diffused manner in the proton channel 102, the image rotating mirror body 33 is located at the proton beam incident section in the proton channel 102 and is close to the inner wall of the vacuum pipeline 10 in the radial direction, and the lens frame 322 is located in the incident section area outside the proton beam diffusion section in the vacuum pipeline 10 and is close to the inner wall of the monitoring pipeline 11 in the radial direction, so as to dispose the image rotating mirror body 33. The divergent path of the proton beam accelerated by the accelerator (not shown) in the proton channel 102 is as shown in Figure 3 As indicated by the dashed line G1 in the figure, the lens frame 322 is located in the incident section outside the proton beam diffusion section in the vacuum pipeline 10 (that is, the tapered end of G1), so that the image rotating mirror body 33 avoids interfering with the proton beam incident in the proton channel 102, the proton beam is diffused in the proton channel 102 and the end of the proton beam is directly opposite to the target body 20 to bombard the target body 20, the infrared light formed by the target body 20 is reflected and concentrated by the image rotating mirror body 33, and the reflected light path is as shown in Figure 3as shown by the dashed line G2 in the figure, so that the image transfer mirror body 33 can reflect the reflected and concentrated infrared light to the transmission mirror body 101 inside the transmission channel 110, as Figure 3 shown by the dashed line G3 in the figure, and finally captured by the imaging unit 31.
[0039] It should be noted that the adjustment unit 32 of the present disclosure may include, for example, a gimbal mirror mount from SIGMAKOKI Co., Ltd., or adopt any mirror mount in the prior art that can adjust the tilt angle of the image transfer mirror body 33, which is not limited in the present disclosure.
[0040] Refe Figure 4 as shown in the figure, the monitoring mechanism 30 further includes: a support ring 34 sleeved on the monitoring pipeline 11 and radially penetrated by the fixing portion 111, a shielding shell 35 arranged around the outer side of the imaging unit 31, and a support rod 36 disposed on the support ring 34 and penetrating the shielding shell 35 to connect the imaging unit 31. The shielding shell 35 is made of a multi-layer composite shielding material, such as lead (Pb), boron polyethylene, and the like. The support rod 36 further provides a stable supporting effect for the imaging unit 31, and the shielding shell 35 further reduces the radiation influence of the high-dose radiation environment around the target body 20 on the imaging unit 31, reduces the failure and damage rate of the imaging unit 31, and improves the service life of the imaging unit 31.
[0041] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or replacements that can be easily conceived by those skilled in the art within the technical scope disclosed by the present disclosure shall be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims
1. A target status real-time monitoring device, characterized in that, include: A vacuum pipe, a target disposed at the free end of the vacuum pipe, and a monitoring mechanism disposed at the end of the vacuum pipe away from the target. The monitoring mechanism includes: an imaging unit, an adjustment unit that radially penetrates the vacuum pipe and partially extends into the vacuum pipe, and an image-rotating mirror body disposed at one end of the adjustment unit extending into the vacuum pipe, wherein the positions of the image-rotating mirror body and the imaging unit are radially corresponding. A transmission mirror is embedded in the wall of the vacuum pipe near the monitoring mechanism. The transmission mirror is formed radially between the imaging unit and the image-rotating mirror. The image-rotating mirror is used to reflect the reflected light formed on the target surface when the target is bombarded by the proton beam to the transmission mirror. The reflected light passes through the transmission mirror and is captured by the imaging unit, so that the imaging unit can obtain the beam spot condition on the target surface and the damage state of the target.
2. The target status real-time monitoring device according to claim 1, characterized in that, The image-rotating mirror is configured as a gold-plated reflector.
3. The target status real-time monitoring device according to claim 1, characterized in that, The vacuum pipe forms a proton channel for the transmission of the proton beam, and the proton beam is incident in a diffuse manner within the proton channel. The image-rotating mirror is located in the proton beam inrush section within the proton channel and is close to the inner wall of the vacuum pipe in the radial direction.
4. The target status real-time monitoring device according to claim 1, characterized in that, The vacuum pipe wall near the monitoring mechanism protrudes radially outward to form a fixing part; The imaging unit is disposed at the free end of the fixed part, and the transmission lens is embedded in the fixed part and is arranged radially corresponding to the position of the imaging unit.
5. The target status real-time monitoring device according to claim 4, characterized in that, The fixing part is radially recessed to form an inward recess for the transmission lens body to be embedded, and a connecting cover is radially abutting the transmission lens body and sealingly connected to the fixing part.
6. The target status real-time monitoring device according to claim 5, characterized in that, The fixing part is configured to provide a transmission channel for the transmission of the reflected light. The lens barrel portion of the imaging unit is radially embedded in the connecting cover and extends into the transmission channel. The transmission lens body is formed inside the transmission channel.
7. The target status real-time monitoring device according to claim 6, characterized in that, The vacuum pipeline consists of a monitoring pipeline and a regulating pipeline connected in an axial sealed manner; The target is disposed at the end of the regulating pipe away from the monitoring pipe, and the monitoring mechanism is disposed at the end of the monitoring pipe away from the regulating pipe.
8. The target status real-time monitoring device according to claim 7, characterized in that, The adjustment unit includes: a lens frame that passes through the side wall of the fixing part and extends into the monitoring pipe, one end of the lens frame extending into the monitoring pipe being rotatably connected to a lens frame, and an adjustment member that radially passes through the side wall of the fixing part to drive the lens frame to rotate, wherein the image rotating lens body is disposed on the lens frame.
9. The target status real-time monitoring device according to claim 8, characterized in that, The adjusting member drives the lens frame to rotate on the lens frame to adjust the angle at which the rotating mirror reflects the reflected light, and the rotating mirror reflects the reflected light formed by the target to the transmission mirror inside the transmission channel.
10. The target status real-time monitoring device according to claim 9, characterized in that, The monitoring mechanism further includes: a support ring sleeved on the monitoring pipe and radially penetrated by the fixing part; a shielding shell surrounding the outside of the imaging unit; and a support rod disposed on the support ring and penetrating the shielding shell to connect to the imaging unit.
Citation Information
Patent Citations
Real-time diagnosis system for section of accelerator particle beam
CN104597476A
Charged particle beam irradiation system, charged particle beam monitoring device, charged particle beam monitoring method and charged particle beam irradiation system controlling method
JP2014025908A