An integrated ambient temperature transition module and an accelerator beam purification and monitoring system

Abstract

This invention belongs to the field of particle accelerator technology and discloses an integrated ambient temperature transition module and an accelerator beam purification and monitoring system. The integrated ambient temperature transition module includes an ambient temperature transition shell, a beam scraper ring body, a beam corona detector, a beam position detection component, a liquid inlet pipe, a liquid outlet pipe, a vacuum pumping pipe, and a fixing flange. The ambient temperature transition shell has a mounting cavity, a vacuum port communicating with the mounting cavity, and a mounting hole. The beam scraper ring body is installed inside the mounting cavity and insulated from the ambient temperature transition shell. The beam corona detector is sealed and inserted through the ambient temperature transition shell and is positioned corresponding to the outer side wall of the beam scraper ring body. The beam position detection component is installed in the mounting hole. The fixing flange has a recess on the side facing another cryogenic thermostat. This integrated ambient temperature transition module achieves simultaneous beam corona physical scraping, efficient water cooling, vacuum pumping, and beam loss monitoring within a single component, completely eliminating spatial conflicts between discrete components.

Description

Technical Field

[0001] This invention relates to the field of particle accelerator technology, and in particular to an integrated room temperature transition module and an accelerator beam purification and monitoring system. Background Technology

[0002] In high-power, high-current accelerators, the beam is not ideally uniformly distributed. A large number of low-energy, divergent, unstable particles, known as beam halos, exist around the high-density beam core. These halo particles readily collide with the vacuum chamber walls, leading to beam loss, vacuum degradation, equipment activation, and even damage to precision components such as superconducting cavities. To address this, halo rings are typically installed along the accelerator beamline. These rings physically remove halo particles using a precision central aperture. Beam loss is monitored by detecting the induced current generated by the impacts, and this monitoring is interlocked with the machine's protection system to promptly cut off abnormal beam current.

[0003] Traditional beam scraper rings have a relatively simple function, only providing mechanical beam scraping and signal extraction. In superconducting linear accelerators, beam scraper rings are typically installed in the high-temperature transition section between two cryogenic thermostats. The axial distance in this region is strictly limited, requiring that the distance between the last superconducting cavity of the preceding thermostat and the first superconducting cavity of the following thermostat remain constant. However, this area also needs to accommodate beam detection elements, vacuum evacuation ports, and cooling pipes. The cramped layout of discrete components makes it difficult to balance effective pumping speed with sufficient installation and operating space. Furthermore, the separate assembly of multiple components leads to structural complexity, numerous sealing elements, and difficulties in ensuring beam alignment accuracy.

[0004] Therefore, there is an urgent need for a highly integrated beam scraping ring assembly that can simultaneously achieve functions such as beam corona scraping, beam loss monitoring, efficient cooling, vacuum pumping, and electrical isolation within a limited spacing, while providing sufficient layout space for beam diagnostic elements. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated ambient temperature transition module and an accelerator beam purification and monitoring system. This integrated ambient temperature transition module enables simultaneous completion of beam corona physical removal, efficient water cooling, vacuum pumping, and beam loss monitoring within a single component, completely eliminating spatial conflicts between discrete components.

[0006] To achieve this objective, the present invention adopts the following technical solution: This invention discloses an integrated ambient temperature transition module, comprising: an ambient temperature transition shell, wherein the ambient temperature transition shell has a mounting cavity, both ends of the mounting cavity are open and respectively sealed and connected to the beam pipes of two adjacent cryogenic thermostats; the ambient temperature transition shell has a vacuum port and a mounting hole communicating with the mounting cavity; a beam scraper body, the beam scraper body is installed in the mounting cavity and insulated from the ambient temperature transition shell; the beam scraper body has a central through hole and a cooling channel arranged around the central through hole; the central through hole is used to allow the beam core to pass through and to intercept beam corona particles using the hole wall; and a beam corona detector, the beam corona detector is sealed and inserted through the ambient temperature transition shell and is arranged corresponding to the outer side wall of the beam scraper body. A halo detector is used to lead the current signal generated by the scraper ring body to an external monitoring system; an inlet pipe and an outlet pipe are respectively connected to the cooling channel and extend radially out of the mounting cavity along the scraper ring body; a vacuum pipe is connected at one end to the vacuum port and at the other end to an external vacuum device; a beam position detection component is installed in the mounting hole and connected to the external monitoring system; a fixed flange is fitted onto the ambient temperature transition shell and sealed to the vacuum chamber of one of the two adjacent cryogenic thermostats, and the fixed flange has a recess on the side facing the other cryogenic thermostat.

[0007] In some embodiments, the scraper ring body includes: an annular structural member having an open cooling channel, the inner wall of the cooling channel being integrally formed with a turbulence structure, the annular structural member having an inlet connector and an outlet connector, the inlet connector being inserted into the inlet pipe, and the outlet connector being inserted into the outlet pipe; and a cover plate, the cover plate being sealed to the annular structural member to close the cooling channel.

[0008] In some specific embodiments, the ambient temperature transition shell has a receiving cavity communicating with the mounting cavity, one end of the receiving cavity is open, and a sealing plate is sealed to the ambient temperature transition shell to close the open end of the receiving cavity. The liquid inlet pipe and the liquid outlet pipe both pass through the sealing plate.

[0009] In some specific embodiments, the inlet pipeline includes at least one first ceramic Kovar tube and a first hydraulic bellows tube, the first ceramic Kovar tube being inserted into the inlet connector, the first hydraulic bellows tube passing through the sealing plate, and the corrugated section of the first hydraulic bellows tube being located within the receiving cavity; and / or, the outlet pipeline includes at least one second ceramic Kovar tube and a second hydraulic bellows tube, the second ceramic Kovar tube being inserted into the outlet connector, the second hydraulic bellows tube passing through the sealing plate, and the corrugated section of the second hydraulic bellows tube being located within the receiving cavity.

[0010] In some embodiments, the ambient temperature transition shell has a mounting sleeve with the mounting hole; the beam position detection assembly includes: a feedthrough connector installed inside the mounting sleeve; a feedthrough electrode installed at the junction of the mounting sleeve and the mounting cavity; an electrode ceramic connected to the feedthrough connector and the feedthrough electrode via a fastener; and a beam position detector passing through the feedthrough connector, one end of which is connected to the feedthrough electrode and the other end of which is connected to the external monitoring system.

[0011] In some embodiments, the inner wall of the mounting cavity is provided with a stop protrusion ring; the mounting cavity is also provided with two ceramic positioning rings and a clamping screw ring, the two ceramic positioning rings are spaced apart, each ceramic positioning ring is provided with a positioning ring groove, the two axial ends of the scraper ring body are respectively engaged in the positioning ring groove, one of the ceramic positioning rings abuts against the stop protrusion ring at the end opposite to the scraper ring body, and the other ceramic positioning ring abuts against the clamping screw ring at the end opposite to the scraper ring body.

[0012] In some embodiments, the ambient temperature transition shell is provided with a plug-in portion, and the vacuum pipeline includes a bend and a sealing flange. One end of the bend is plugged into the plug-in portion, and the other end is connected to the sealing flange. The sealing flange is connected to the external vacuum equipment through an external pipeline.

[0013] In some embodiments, the scraper ring body is made of oxygen-free copper or metallic niobium, the diameter of the central through hole is 20mm-30mm, and the minimum wall thickness of the scraper ring body in the radial direction is greater than the penetration depth of the halo particles to be removed in the material of the scraper ring body.

[0014] In some embodiments, the integrated ambient temperature transition module further includes a first slip-on flange and a second slip-on flange, the first slip-on flange and the second slip-on flange being respectively connected to both ends of the ambient temperature transition shell, and respectively sealingly connected to the beam pipes of the two adjacent cryogenic thermostats.

[0015] The present invention also discloses an accelerator beam purification and monitoring system, including the integrated ambient temperature transition module and the linear accelerator described above. The linear accelerator includes at least two cryogenic thermostats, and the integrated ambient temperature transition module is installed between two adjacent cryogenic thermostats.

[0016] The beneficial effects of this invention are as follows: Because the beam scraping ring body, beam corona detector, beam position detection component, liquid inlet pipe, liquid outlet pipe, and vacuum pipe are integrated into the ambient temperature transition shell, beam corona physical scraping, efficient water cooling, vacuum pumping, and beam loss monitoring are simultaneously achieved within a single component, completely eliminating spatial conflicts between discrete components. Simultaneously, a recess is provided on the side of the fixing flange facing the other cryogenic thermostat. This recess increases the effective layout spacing between the two cryogenic thermostats beyond the space occupied by the beam scraping ring body, while maintaining the distance between two adjacent cryogenic thermostats along the beam core direction. This provides additional installation space for beam detection elements and / or vacuum elements.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the integrated ambient temperature transition module according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of the integrated ambient temperature transition module according to an embodiment of the present invention; Figure 3 yes Figure 2 A partially enlarged schematic diagram of the structure shown; Figure 4 yes Figure 2 Another enlarged view of the structure shown; Figure 5 This is a partial structural schematic diagram of the integrated ambient temperature transition module according to an embodiment of the invention; Figure 6 This is a schematic diagram of the structure of the ambient temperature transition shell according to an embodiment of the present invention.

[0019] Figure label: 100. Room temperature transition shell; 101. Mounting cavity; 102. Vacuum port; 103. Mounting hole; 104. Receiving cavity; 105. Sealing plate; 106. Mounting sleeve; 107. Stop ring; 108. Insertion part; 200. Scraper ring body; 201. Central through hole; 202. Cooling channel; 210. Annular structural component; 211. Connector fixing block; 212. Liquid inlet connector; 213. Liquid outlet connector; 214. Fixing bolt; 220. Cover plate; 300. Beam corona detector; 400. Liquid inlet pipe; 410. First ceramic Kovar pipe; 420. First hydraulic bellows pipe; 500. Liquid outlet pipeline; 510. Second ceramic Kovar tube; 520. Second hydraulic bellows tube; 600. Vacuum piping; 610. Bend; 620. Sealing flange; 700. Beam position detection assembly; 710. Feedthrough connector; 720. Feedthrough electrode; 730. Electrode ceramic; 740. Beam position detector; 750. Fixture; 800. Fixed flange; 801. Recess; 910. Ceramic positioning ring; 911. Positioning ring groove; 920. Tightening ring; 930. First loose flange; 940. Second loose flange. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0021] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] In the description of this embodiment, the terms "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0023] This invention discloses an integrated ambient temperature transition module, with reference to... Figure 1 and Figure 2As shown, the integrated ambient temperature transition module includes an ambient temperature transition housing 100, a beam scraper ring body 200, a beam corona detector 300, a beam position detection component 700, a liquid inlet pipe 400, a liquid outlet pipe 500, a vacuum pipe 600, and a fixed flange 800. The ambient temperature transition housing 100 has a mounting cavity 101, which is open at both ends. The two ends of the mounting cavity 101 are respectively sealed and connected to the beam pipes of two adjacent cryogenic thermostats. The ambient temperature transition housing 100 has a vacuum port 102 and a mounting hole 103 communicating with the mounting cavity 101. The beam scraper ring body 200 is installed in the mounting cavity 100. The scraper ring body 200 is insulated from the ambient temperature transition shell 100. It has a central through hole 201 and a cooling channel 202 surrounding the central through hole 201. The central through hole 201 is used to allow the beam core to pass through and to intercept the beam corona particles using the hole wall. The beam corona detector 300 is sealed and inserted through the ambient temperature transition shell 100 and is set on the outer side wall of the scraper ring body 200. The beam corona detector 300 is used to extract the current signal generated by the scraper ring body 200. The liquid inlet pipe 400 and the liquid outlet pipe 500 are respectively connected to the cooling channel 202 and extend out of the mounting cavity 101 radially along the scraper ring body 200. One end of the vacuum line 600 is connected to the vacuum port 102, and the other end is used to connect to an external vacuum equipment. The beam position detection component 700 is installed in the mounting hole 103. The beam position detection component 700 is used to output the induced current generated when the halo particles hit the wall of the central through hole 201 to the external monitoring system. The fixed flange 800 is fitted onto the ambient temperature transition shell 100 and is sealed to the vacuum chamber of one of the two adjacent cryogenic thermostats. The fixed flange 800 has a recess 801 on the side facing the other cryogenic thermostat. Understandably, since the two ends of the mounting cavity 101 are respectively sealed and connected to the beam pipes of two adjacent cryogenic thermostats, during operation, the beam core enters the mounting cavity 101 from the beam pipe of the upstream cryogenic thermostat and is conducted to the beam pipe of the upstream cryogenic thermostat. When the beam core passes through the scraper ring body 200, the halo particles, due to their low energy, divergent orbits, and large amplitude, will have their trajectories exceed the range of the beam core and collide with the inner wall of the scraper ring body 200. When the halo particles collide with the inner wall of the scraper ring body 200, they will be dispersed within the scraper ring body 200. An induced current is generated on the 0, and the current intensity is positively correlated with the number and energy of the impacting particles. The corona detector 300 on the ambient temperature transition shell 100 can detect and extract the current signal generated by the scraper ring body 200. The induced current will be connected to the external monitoring system. When the accelerator malfunctions (such as acceleration cavity failure, beam defocusing, etc.), a large number of particles will deviate from the track and impact the scraper ring, causing the induced current to suddenly rise and exceed the threshold. At this time, the external monitoring system will quickly trigger the beam abort command to immediately cut off the beam and avoid the abnormal beam from damaging the downstream precision components.Because the beam scraper ring body 200 is provided with cooling channels 202, the heat generated by the interception and absorption of the diffused halo particles by the hole wall of the central through hole 201 can be carried away by the circulating cooling medium. Because the ambient temperature transition shell 100 is provided with a beam position detection component 700, when the beam core passes through the detection area of ​​the beam position detection component 700, the beam position detection component 700 can sense the weak electrical signal related to the beam position and intensity and transmit it to the external monitoring system. The external monitoring system uploads the real-time beam position data to the accelerator control system. The external monitoring system drives the correction magnet to adjust the magnetic field according to the offset data to achieve closed-loop stable control of the beam trajectory. Because the ambient temperature transition shell 100 is provided with a vacuum pipe 600, it can also be easily connected to external vacuum equipment. In summary, because the ambient temperature transition housing 100 integrates the beam scraper ring body 200, the corona detector 300, the beam position detection component 700, the liquid inlet pipe 400, the liquid outlet pipe 500, and the vacuum pumping pipe 600, it achieves simultaneous corona physical scraping, efficient water cooling, vacuum pumping, and beam loss monitoring within a single component, completely eliminating spatial conflicts between discrete components. Meanwhile, the fixed flange 800 has a recess 801 on the side facing the other cryogenic thermostat. This recess 801 increases the effective layout spacing between the two cryogenic thermostats beyond the space occupied by the beam scraper ring body 200, while maintaining the distance between two adjacent cryogenic thermostats along the beam core direction, thus providing additional installation space for beam detection elements and / or vacuum elements.

[0024] It should be noted that both the corona detector 300 and the beam position detection component 700 are non-contact detection structures. The physical essence of the current drawn out by the non-contact detection structure is to detect charge. This principle is existing technology and does not need to be elaborated again.

[0025] Optionally, the corona detector 300 uses a vacuum coaxial through connector, with its inner conductor electrically connected to the scraper ring body 200 and its outer conductor connected to ground potential, and transmits the induced current signal to an external monitoring device via a coaxial cable.

[0026] Optionally, the recess 801 can be a whole annular groove or a fan-shaped groove with a central angle between 90° and 120°. The specific shape of the recess 801 can be selected according to actual needs.

[0027] Optional, see reference Figure 5As shown, the scraper ring body 200 includes an annular structural member 210 and a cover plate 220. The annular structural member 210 has an open cooling channel 202. An integrally formed turbulence structure is formed on the inner wall of the cooling channel 202. The annular structural member 210 has an inlet connector 212 and an outlet connector 213. The inlet connector 212 is inserted into the inlet pipe 400, and the outlet connector 213 is inserted into the outlet pipe 500. The cover plate 220 is sealed to the annular structural member 210 to close the cooling channel 202. The scraper ring body 200, including the annular structural member 210 and the cover plate 220, facilitates manufacturing and assembly. The turbulence structure added to the inner wall of the cooling channel 202 can prolong the flow time of the cooling medium within the cooling channel 202, thereby improving the cooling effect on the scraper ring body 200. Further optionally, the connection between the cover plate 220 and the annular structural member 210 can be welding or other connection methods.

[0028] Further optional, see reference Figures 2-5 As shown, the ambient temperature transition housing 100 has a receiving cavity 104 communicating with the mounting cavity 101. One end of the receiving cavity 104 is open, and a sealing plate 105 is sealed to the ambient temperature transition housing 100 to close the open end of the receiving cavity 104. The inlet pipe 400 and the outlet pipe 500 both pass through the sealing plate 105. It can be understood that providing a receiving cavity 104 on the ambient temperature transition housing 100 for the inlet pipe 400 and the outlet pipe 500 facilitates assembly and improves the structural compactness. In addition, the corona detector 300 can also pass through the side wall of the receiving cavity 104 to ensure that the corona detector 300 can stably draw out the current generated on the scraper ring body 200.

[0029] Alternatively, the connector fixing block 211 is fixed to the annular structural member 210 by fixing bolts 214. The connector fixing block 211 has an integrally formed inlet connector 212 and outlet connector 213. In this way, during actual installation, the annular structural member 210 and the cover plate 220 can be welded and fixed into the installation cavity 101 first, and then the connector fixing block 211 can be installed on the annular structural member 210 from the open end of the receiving cavity 104, thus avoiding the phenomenon of the inlet connector 212 and outlet connector 213 scraping against the room temperature transition shell 100.

[0030] Optionally, the inlet pipe 400 includes at least one first ceramic Kovar tube 410 and a first hydraulic bellows tube 420. The first ceramic Kovar tube 410 is inserted into the inlet connector 212, and the first hydraulic bellows tube 420 passes through the sealing plate 105, with the corrugated section of the first hydraulic bellows tube 420 located within the receiving cavity 104. Since current is generated on the scraper ring body 200 during actual operation, providing an insulated first ceramic Kovar tube 410 on the inlet pipe 400 prevents the end of the inlet pipe 400 connected to the cold source from becoming energized, ensuring operational safety. Through the connection between the first hydraulic bellows tube 420 and the first ceramic Kovar tube 410, and its passage through the sealing plate 105, the corrugated section of the first hydraulic bellows tube 420 can abut against the sealing plate 105 during actual assembly, thus ensuring a tight seal between the inlet pipe 400 and the sealing plate 105. To further improve the sealing performance of the connection between the two, the first hydraulic bellows 420 and the sealing plate 105 can be welded together.

[0031] Optionally, the liquid outlet line 500 includes at least one second ceramic Kovar tube 510 and a second hydraulic bellows tube 520. The second ceramic Kovar tube 510 is inserted into the liquid outlet connector 213, and the second hydraulic bellows tube 520 passes through the sealing plate 105, with the corrugated section of the second hydraulic bellows tube 520 located within the receiving cavity 104. Since current is generated on the scraper ring body 200 during actual operation, providing an insulated second ceramic Kovar tube 510 on the liquid outlet line 500 prevents the end of the liquid outlet line 500 connected to the cold source from becoming energized, ensuring operational safety. Through the connection between the second hydraulic bellows tube 520 and the second ceramic Kovar tube 510, and its passage through the sealing plate 105, the corrugated section of the second hydraulic bellows tube 520 can abut against the sealing plate 105 during actual assembly, thus ensuring a tight seal between the liquid outlet line 500 and the sealing plate 105. To further improve the sealing performance of the connection between the two, the second hydraulic bellows 520 can be welded to the sealing plate 105.

[0032] Optional, see reference Figure 4 and Figure 6As shown, the ambient temperature transition housing 100 has a mounting sleeve 106 with a mounting hole 103; the beam position detection assembly 700 includes a feedthrough pipe 710, a feedthrough electrode 720, an electrode ceramic 730, and a beam position detector 740. The feedthrough pipe 710 is installed inside the mounting sleeve 106, the feedthrough electrode 720 is installed at the connection between the mounting sleeve 106 and the mounting cavity 101, the electrode ceramic 730 is connected to the feedthrough pipe 710 and the feedthrough electrode 720 through a fastener 750, and the beam position detector 740 passes through the feedthrough pipe 710. One end of the beam position detector 740 is connected to the feedthrough electrode 720, and the other end is connected to an external monitoring system. Understandably, the beam position detector 740 is used to detect the beam core, the feedthrough electrode 720 increases the detection area of ​​the beam position detector 740, and the feedthrough connector 710, as a support, can fix the entire beam position detection assembly 700 within the mounting sleeve 106, ensuring the installation stability of the beam position detection assembly 700. The electrode ceramic 730 ensures insulation between the feedthrough connector 710 and the feedthrough electrode 720, preventing the feedthrough connector 710 from becoming charged.

[0033] Alternatively, the beam position detector 740 can ensure the stability and sealing of its connection with the feedthrough pipe 710 through an interference fit or by applying sealant.

[0034] Alternatively, to ensure the connection stability between the feedthrough pipe 710 and the mounting sleeve 106, a fixing protrusion ring can be provided at the end of the feedthrough pipe 710, and a supporting step can be provided on the inner sidewall of the mounting hole 103, with the fixing protrusion ring abutting against the supporting step. To prevent the feedthrough pipe 710 and the mounting sleeve 106 from rotating relative to each other, a first anti-rotation plane can be provided on the fixing protrusion ring, and a second anti-rotation plane can be provided on the inner sidewall of the mounting sleeve 106, with the first anti-rotation plane abutting against the second anti-rotation plane.

[0035] Further optional, see reference Figure 3As shown, the inner wall of the mounting cavity 101 is provided with a stop protrusion ring 107; the mounting cavity 101 is also provided with two ceramic positioning rings 910 and a clamping screw ring 920. The two ceramic positioning rings 910 are spaced apart, and each ceramic positioning ring 910 is provided with a positioning ring groove 911. The two axial ends of the scraper ring body 200 are respectively engaged in the positioning ring groove 911. One ceramic positioning ring 910 abuts against the stop protrusion ring 107 at the end away from the scraper ring body 200, and the other ceramic positioning ring 910 abuts against the clamping screw ring 920 at the end away from the scraper ring body 200. It is understandable that axial movement of the scraping ring body 200 during actual operation will affect its scraping effect. In this embodiment, two ceramic positioning rings 910 and a clamping screw ring 920 are added. During assembly, one ceramic positioning ring 910 is first installed into the mounting cavity 101 and abuts against the stop protrusion 107. Then, the scraping ring body 200 is installed into the mounting cavity 101 and pressed into a positioning ring groove 911. Next, another ceramic positioning ring 910 is installed into the mounting cavity 101, and the positioning ring groove 911 on the ceramic positioning ring 910 is engaged with the scraping ring body 200. Finally, the clamping screw ring 920 is screwed into the mounting cavity 101 to achieve stable positioning of the scraping ring body 200. This avoids axial movement of the scraping ring body 200 and prevents the electrical charge between the outer shells 100 at room temperature.

[0036] Optional, see reference Figure 2 and Figure 6 As shown, the ambient temperature transition shell 100 is provided with a connector 108. The vacuum pipeline 600 includes a bend 610 and a sealing flange 620. One end of the bend 610 is inserted into the connector 108, and the other end is connected to the sealing flange 620. The sealing flange 620 is connected to an external vacuuming device through an external pipeline. The connector 108 connects the vacuum pipeline 600 to the ambient temperature transition shell 100, ensuring the stability and sealing of the connection between the vacuum pipeline 600 and the ambient temperature transition shell 100. The added sealing flange 620 ensures a stable and sealed connection between the other end of the bend 610 and the vacuuming device. Optionally, the bend 610 may have an enlarged inner diameter to increase the total pumping cross-section and improve the effective pumping speed; this structure can be selected based on existing technology.

[0037] Optionally, the scraping ring body 200 is made of oxygen-free copper or niobium, and the diameter of the central through hole 201 is 20mm-30mm. Specifically, the diameter of the central through hole 201 can be 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, or 30mm. A diameter that is too large or too small is detrimental to scraping; a diameter of 20mm-30mm ensures the effective scraping of the scraping ring body 200.

[0038] Optionally, the minimum radial wall thickness of the beam scraper body 200 is greater than the penetration depth of the halo particles to be removed in the material of the beam scraper body 200. This prevents halo particles from penetrating the beam scraper body 200, ensuring stable beam scraping of the beam core by the beam scraper body 200.

[0039] Optional, see reference Figure 2 As shown, the integrated ambient temperature transition module also includes a first loose flange 930 and a second loose flange 940. The first loose flange 930 and the second loose flange 940 are respectively connected to both ends of the ambient temperature transition housing 100, and are respectively sealed and connected to the beam pipes of the two adjacent cryogenic thermostats. It can be understood that the first loose flange 930 and the second loose flange 940 can float slightly axially relative to the beam scraper ring body 200, docking with the two adjacent beam pipes to form a beam vacuum through channel and compensating for installation deviations.

[0040] Optionally, the integrated ambient temperature transition module includes four vacuum lines 600 and four beam position detection components 700, with the four vacuum lines 600 and the four beam position detection components 700 being evenly spaced along the circumference of the mounting cavity 101.

[0041] The advantages of the integrated ambient temperature transition module disclosed in this invention are as follows: First, by integrating a cooling channel 202 on the built-in beam scraper body 200 and integrating multiple large-section vacuum ports 102, a beam corona detector 300 and a beam position detection component 700 on the ambient temperature transition shell 100, the physical scraping of the beam corona, efficient water cooling, vacuum pumping and beam loss monitoring can be completed simultaneously in a single component, completely eliminating the spatial conflict of discrete components.

[0042] Secondly, a recessed part 801 is provided on the fixed flange 800, which provides additional installation space without changing the spacing of the low temperature thermostat, taking into account both physical aperture limitations and engineering layout requirements.

[0043] Third, the combination of the first loose flange 930, the second loose flange 940, the ceramic positioning ring 910, and the clamping screw ring 920 ensures the continuity of the beam vacuum, the convenience of disassembly and assembly, and the electrical isolation requirements for signal pickup, significantly improving the reliability and maintainability of the accelerator operation.

[0044] Fourth, the symmetrical arrangement of the four large-section vacuum ports 102 greatly increases the effective pumping speed of the cryogenic thermostat, ensuring the working vacuum level of this sensitive area and avoiding vacuum fluctuations caused by corona bombardment gas release. At the same time, symmetrical pumping reduces the impact of deformation caused by vacuum pressure difference.

[0045] This invention also discloses an accelerator beam purification and monitoring system, comprising the aforementioned integrated ambient temperature transition module and a linear accelerator. The linear accelerator includes at least two cryogenic thermostats, and the integrated ambient temperature transition module is installed between two adjacent cryogenic thermostats. Optionally, in actual operation, the response time of the accelerator beam purification and monitoring system to the detection threshold corresponding to abnormal excessive impacts in the beam corona is less than 10 microseconds, and the ion source or injector is cut off after triggering to achieve beam termination.

[0046] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An integrated ambient temperature transition module, characterized in that, include: A room temperature transition shell (100) is provided with a mounting cavity (101). The two ends of the mounting cavity (101) are open. The two ends of the mounting cavity (101) are respectively sealed and connected to the beam pipes of two adjacent low temperature thermostats. The room temperature transition shell (100) has a vacuum port (102) and a mounting hole (103) connected to the mounting cavity (101). The beam scraper body (200) is installed in the mounting cavity (101) and is insulated from the ambient temperature transition shell (100). The beam scraper body (200) is provided with a central through hole (201) and a cooling channel (202) arranged around the central through hole (201). The central through hole (201) is used to allow the beam core to pass through and to intercept beam corona particles using the hole wall. A corona detector (300) is sealed and installed in the ambient temperature transition shell (100) and is disposed on the outer side wall of the scraper ring body (200). The corona detector (300) is used to lead out the current signal generated by the scraper ring body (200) to an external monitoring system. The liquid inlet pipe (400) and the liquid outlet pipe (500) are respectively connected to the cooling channel (202) and extend out of the mounting cavity (101) radially along the scraper ring body (200). A vacuum line (600) is provided, one end of which is connected to the vacuum port (102), and the other end is used to connect to an external vacuum equipment. A beam position detection component (700) is installed in the mounting hole (103) and is electrically connected to the external monitoring system. A fixed flange (800) is fitted onto the ambient temperature transition shell (100) and is sealed to the vacuum chamber of one of the two adjacent cryogenic thermostats. The fixed flange (800) has a recess (801) on the side facing the other cryogenic thermostat.

2. The integrated ambient temperature transition module according to claim 1, characterized in that, The scraper ring body (200) includes: An annular structural component (210) is provided with an open cooling channel (202). The inner wall of the cooling channel (202) is integrally formed with a turbulence structure. The annular structural component (210) is provided with an inlet connector (212) and an outlet connector (213). The inlet connector (212) is inserted into the inlet pipe (400), and the outlet connector (213) is inserted into the outlet pipe (500). A cover plate (220) is sealed to the annular structure (210) to close the cooling channel (202).

3. The integrated ambient temperature transition module according to claim 2, characterized in that, The ambient temperature transition shell (100) has a receiving cavity (104) communicating with the mounting cavity (101). One end of the receiving cavity (104) is open. A sealing plate (105) is sealed on the ambient temperature transition shell (100) to close the open end of the receiving cavity (104). The liquid inlet pipe (400) and the liquid outlet pipe (500) both pass through the sealing plate (105).

4. The integrated ambient temperature transition module according to claim 3, characterized in that, The inlet pipeline (400) includes at least one first ceramic Kovar tube (410) and a first hydraulic bellows tube (420). The first ceramic Kovar tube (410) is inserted into the inlet connector (212), and the first hydraulic bellows tube (420) passes through the sealing plate (105), with the corrugated section of the first hydraulic bellows tube (420) located within the receiving cavity (104); and / or, The liquid outlet pipeline (500) includes at least one second ceramic Kovar tube (510) and a second hydraulic bellows tube (520). The second ceramic Kovar tube (510) is inserted into the liquid outlet connector (213), and the second hydraulic bellows tube (520) passes through the sealing plate (105). The corrugated section of the second hydraulic bellows tube (520) is located in the receiving cavity (104).

5. The integrated ambient temperature transition module according to claim 1, characterized in that, The ambient temperature transition shell (100) has a mounting sleeve (106), and the mounting sleeve (106) has the mounting hole (103); the beam position detection assembly (700) includes: Feedthrough pipe (710), which is installed inside the mounting sleeve (106); Feedthrough plate (720), the feedthrough plate (720) is installed at the connection between the mounting sleeve (106) and the mounting cavity (101); Electrode ceramic (730), the electrode ceramic (730) is connected to the feedthrough pipe (710) and the feedthrough electrode (720) through a fastener (750); A beam position detector (740) is installed through the feedthrough connector (710). One end of the beam position detector (740) is connected to the feedthrough electrode (720), and the other end is connected to the external monitoring system.

6. The integrated ambient temperature transition module according to claim 1, characterized in that, The inner wall of the mounting cavity (101) is provided with a stop protrusion ring (107); the mounting cavity (101) is also provided with two ceramic positioning rings (910) and a clamping screw ring (920). The two ceramic positioning rings (910) are spaced apart, and each ceramic positioning ring (910) is provided with a positioning ring groove (911). The two axial ends of the scraper ring body (200) are respectively engaged in the positioning ring groove (911). One of the ceramic positioning rings (910) abuts against the stop protrusion ring (107) at the end away from the scraper ring body (200), and the other ceramic positioning ring (910) abuts against the clamping screw ring (920) at the end away from the scraper ring body (200).

7. The integrated ambient temperature transition module according to claim 1, characterized in that, The ambient temperature transition shell (100) is provided with a plug-in part (108). The vacuum pipeline (600) includes a bend (610) and a sealing flange (620). One end of the bend (610) is plugged into the plug-in part (108), and the other end is connected to the sealing flange (620). The sealing flange (620) is connected to the external vacuum equipment through an external pipeline.

8. The integrated ambient temperature transition module according to claim 1, characterized in that, The scraper ring body (200) is made of oxygen-free copper or metallic niobium, the diameter of the central through hole (201) is 20mm-30mm, and the minimum wall thickness of the scraper ring body (200) in the radial direction is greater than the penetration depth of the halo particles to be removed in the material of the scraper ring body (200).

9. The integrated ambient temperature transition module according to claim 1, characterized in that, The integrated ambient temperature transition module also includes a first slip flange (930) and a second slip flange (940). The first slip flange (930) and the second slip flange (940) are respectively connected to the two ends of the ambient temperature transition shell (100) and are respectively sealed and connected to the beam pipes of the two adjacent low temperature thermostats.

10. An accelerator beam purification and monitoring system, characterized in that, The invention includes an integrated ambient temperature transition module and a linear accelerator as described in any one of claims 1-9, wherein the linear accelerator includes at least two cryostats, and the integrated ambient temperature transition module is installed between two adjacent cryostats.

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