Beam window system

Abstract

The present application relates to nuclear technology and nuclear medical technology field, and relates to a beam window system, comprising: a beam window and a beam scraping mechanism, comprising a beam window assembly, a beam scraping assembly, an air-filled bellows assembly and a shielding body, the beam window assembly, the beam scraping assembly and the air-filled bellows assembly are connected to form a module, and the module is connected with the shielding body to form an integral assembly; a guiding installation and support mechanism, comprising a three-dimensional adjustable support assembly, an installation positioning box, a guide sleeve, a hydraulic bellows assembly, a vacuum pipeline, a quick-release chain assembly, a front-end bellows assembly and a pipeline support assembly, the three-dimensional adjustable support assembly is arranged on the ground, the installation positioning box is arranged on the three-dimensional adjustable support assembly, the guide sleeve is connected with the installation positioning box, the installation positioning box is welded with the hydraulic bellows assembly along the downstream of the beam line, and the vacuum pipeline is welded with the front-end bellows assembly along the upstream of the beam line, the vacuum pipeline is connected and sealed with the front-end bellows assembly through the quick-release chain assembly, and the quick-release chain assembly is supported and arranged on the pipeline support assembly.

Description

Technical Field

[0001] This invention relates to the fields of nuclear technology and nuclear medicine, and in particular to a beam window system. Background Technology

[0002] Medical isotopes play an irreplaceable role in disease diagnosis, treatment, and medical research. However, my country has long relied heavily on imports for medical isotopes, a situation that severely restricts the independent development of my country's medical and health undertakings and exposes my country to key technological bottlenecks in related fields. To break this situation, an isotope research and development device based on a high-current superconducting linear accelerator and a high-power target has emerged. This device integrates a series of cutting-edge technologies, including advanced high-current ion accelerators, high-power target technology, efficient gas-filled backflushing separation technology, and radioactive isotope separation, aiming to achieve independent production of medical isotopes and provide strong support for the research and development of targeted isotope drugs. It is of vital importance in solving my country's reliance on imported medical isotopes.

[0003] In the aforementioned isotope research and development facility, the beam window is a crucial core component. Located at the junction of the high-current superconducting linear accelerator and the high-power target, it plays a vital role in isolating the high-vacuum environment of the accelerator from the atmospheric or helium environment of the target. Simultaneously, to ensure effective beam transmission and utilization, the beam window also needs to minimize beam loss and scattering. However, the high-power beam generated by the high-current superconducting accelerator, and the high-radiation dose environment formed by the interaction of the beam with the beam window and the high-power target, pose significant challenges to the development of the beam window. This not only severely impacts its lifespan but also makes its disassembly and replacement extremely difficult.

[0004] To ensure the safe, reliable, and long-term stable operation of the entire device, while facilitating beam window maintenance and decommissioning replacement, the development of an ultrathin, high-power beam window system suitable for high-irradiation environments is of paramount importance. The material thickness of this beam window system needs to be controlled within the hundreds of micrometers range, and it must be compatible with multiple windows to extend the beam window's lifespan by reducing energy deposition in individual windows. Simultaneously, it must not affect the vacuum environment of the particle accelerator, and it should be easily maintained and replaced via remote operation.

[0005] Currently, existing accelerator beam windows mainly use metallic materials, graphene, or high-conductivity graphite film materials. Among them, metallic materials generally employ water cooling to improve heat exchange efficiency. However, due to the need to withstand high water pressure, these beam windows are usually quite thick. Both the cooling water and the thick metallic material create strong obstructions to the beam, resulting in significant beam energy loss and power dissipation, making it difficult to meet the requirements of high-power beam environments.

[0006] On the other hand, while graphene or high-conductivity graphite film materials are thin and have a smaller impact on beam energy loss and scattering, they also have significant limitations due to their material properties. Firstly, these materials cannot be directly water-cooled and can only dissipate heat through thermal conduction when pressed against the substrate, resulting in low heat dissipation efficiency. Secondly, even when air-cooled, they cannot withstand high pressures, leading to very limited heat dissipation, thus making them unsuitable for high-power beam environments.

[0007] In summary, existing beam windowing technologies generally suffer from problems such as high energy deposition, significant beam scattering, short lifespan, and difficulty in remote disassembly and replacement when facing high-power beams and high-irradiation dose environments. These problems not only severely limit the stable and efficient operation of accelerators and high-power targets, affecting the overall performance of isotope research and development facilities, but also increase the safety risks for personnel during maintenance and replacement processes. Summary of the Invention

[0008] This invention provides a beam window system to address the shortcomings of existing beam windows, such as high energy deposition, significant beam scattering, short service life, and difficulty in remote disassembly and replacement, under high-power beam current and high radiation dose environments. The goal is to achieve safe, reliable, and long-term stable operation of the beam window, while facilitating maintenance and decommissioning replacement, and without affecting the vacuum environment of the particle accelerator.

[0009] This invention provides a beam window system, comprising: a beam window and a beam scraping mechanism, including a beam window assembly, a beam scraping assembly, an inflatable corrugated pipe assembly, and a shield; the beam window assembly, the beam scraping assembly, and the inflatable corrugated pipe assembly are connected to form a module, which is connected to the shield to form an integral assembly; and a guiding, installation, and support mechanism, including a three-dimensional adjustable support assembly, an installation positioning box, a guide sleeve, a hydraulic corrugated pipe assembly, a vacuum pipe, a quick-release chain assembly, a front-end corrugated pipe assembly, and a pipe support assembly; the three-dimensional adjustable support assembly is disposed on the ground, and the installation positioning box is disposed on the three-dimensional... On the adjustable support assembly, the guide sleeve is connected to the mounting and positioning box. The mounting and positioning box is welded with the hydraulic bellows assembly downstream of the beam line and with the vacuum pipe upstream of the beam line. The vacuum pipe is vacuum connected and sealed to the upstream front bellows assembly through the quick-release chain assembly. The quick-release chain assembly is supported and mounted on the pipe support assembly. The beam window and beam scraping mechanism can be inserted into the mounting and positioning box as a whole through the guide sleeve. After the inflatable bellows assembly is filled with gas, it achieves a vacuum seal with the corresponding mating surface of the mounting and positioning box.

[0010] According to one embodiment of the present invention, the beam window and scraping mechanism further include a fixed support and a pipeline and cable assembly; the module formed by the beam window assembly, the scraping assembly and the inflatable corrugated pipe assembly is connected to the shielding body through the fixed support, and the pipeline and cable assembly is connected to the top of the module. The pipeline and cable assembly is embedded in a groove on the outer surface of the shielding body and connected to a connector on the top of the shielding body; the pipeline and cable assembly includes a beam window air inlet pipe, a beam window air outlet pipe, a scraping water inlet pipe, a scraping water outlet pipe, a vacuum pipe, a corrugated pipe air inlet pipe, and a signal lead cable; the vacuum pipe and the corrugated pipe air inlet pipe both adopt a main pipe and two branch pipe design, and the two branch pipes are respectively connected to the corresponding holes of the inflatable corrugated pipe assembly.

[0011] According to one embodiment of the present invention, the three-dimensional adjustable support assembly is installed on a steel plate pre-embedded in the ground, and the mounting positioning box and the guide sleeve are provided with an adjustable steel structure frame and a concrete shielding block around them; the bottom plate of the mounting positioning box is provided with a positioning hole, which cooperates with the positioning column of the beam window assembly; the hydraulic bellows assembly adopts a tapered flange.

[0012] According to one embodiment of the present invention, the beam window assembly includes a front beam window substrate, a rear beam window substrate, and a window film; the front beam window substrate, the rear beam window substrate, and the window film together form a double-layer window panel structure; the double-layer window panel structure is provided with the window films arranged in a matrix, and a partition is provided between each row of window films; an air inlet box and an air outlet box are provided on the left and right sides of the double-layer window panel structure, and an air groove is opened on the inner side of the air inlet box and the air outlet box, and an air inlet / outlet pipe is connected to the upper end; a stepped hole is opened on the outer end of the front beam window substrate, which is connected to the beam scraping assembly; a connecting pipe is connected to the rear beam window substrate, which is connected to the inflation corrugated pipe assembly; positioning posts are provided at the bottom of the air inlet box and the air outlet box.

[0013] According to one embodiment of the present invention, the window film is made of an ultra-thin metal film material with a thickness of 50μm-200μm, and the window film is spherical in shape.

[0014] According to one embodiment of the present invention, the scraping assembly includes a front scraping plate, a rear scraping plate, and a scraping plate pipe; the front scraping plate and the rear scraping plate are connected and embedded with a water-cooled pipe assembly to form a scraping plate assembly; a scraping plate fixing ring is connected inside the scraping plate pipe, and multiple ceramic pads are evenly distributed in the circumferential direction on the upstream end face of the scraping plate fixing ring, and the scraping plate assembly is set on the scraping plate fixing ring by the ceramic pads and bolts; an inlet pipe connector and an outlet pipe connector are respectively provided at the center of the upper and lower ends of the scraping plate pipe, and an inlet ceramic Kovar connector and an outlet ceramic Kovar connector are respectively connected inside; adjacent to the inlet pipe connector, the scraping plate pipe is also provided with a feedthrough installation pipe, and the feedthrough installation pipe is connected with a feedthrough connector; the front scraping plate and the rear scraping plate are provided with probe mounting holes; the front scraping plate and the rear scraping plate are provided with a matrix-distributed scraping holes, which correspond one-to-one with the downstream window film.

[0015] According to one embodiment of the present invention, the front scraper plate and the rear scraper plate are made of high-conductivity oxygen-free copper, and the water-cooling pipe assembly is made of stainless steel, with the front scraper plate and the rear scraper plate enclosing the water-cooling pipe assembly therein.

[0016] According to one embodiment of the present invention, scraper fixing ears are provided on both sides of the scraper plate pipe, and multiple threaded holes are evenly distributed on the outer side of the scraper fixing ears. A number of threaded holes are also evenly distributed on the outer side of the beam window assembly. The module consisting of the beam window assembly, the scraper assembly and the inflatable corrugated pipe assembly is installed in the fixed support by bolt connection, and the fixed support and the shielding body form an integral insertion structure.

[0017] According to one embodiment of the present invention, the inflatable bellows assembly includes an upstream bellows assembly and a downstream bellows assembly; in the axial direction of the inflatable bellows assembly, the opposite sides of the upstream bellows assembly and the downstream bellows assembly are respectively welded to both ends of a pipe structure for supporting the bundle window assembly and the scraper assembly, and a metal film is welded to the opposite end faces of the upstream bellows assembly and the downstream bellows assembly, the metal film being able to bulge after inflation and achieve a sealing fit with the mating surface corresponding to the inner sidewall of the mounting positioning box.

[0018] According to one embodiment of the present invention, the shielding body adopts an integrated structure and is made of iron, carbon steel or concrete; the surface of the shielding body facing the beam is provided with a mounting groove for pipelines and cables, and the mounting groove adopts a Z-shaped design; the top of the shielding body is provided with a quick connector for connecting water and air circuits and a signal lead-out feedthrough; the top of the shielding body is provided with a lifting lug and guide rail grooves on the left and right sides, and during installation, the guide rail grooves cooperate with the guide rails on the left and right sides inside the guide sleeve.

[0019] The beam window system provided by this invention connects a beam window assembly, a beam scraping assembly, and an inflatable bellows assembly to form a module. This module is connected to a shield to constitute the beam window and beam scraping mechanism. A guiding installation and support mechanism is also provided, which includes a three-dimensional adjustable support assembly, an installation positioning box, a guide sleeve, a hydraulic bellows assembly, a vacuum pipe, a quick-release chain assembly, a front-end bellows assembly, and a pipe support assembly. The three-dimensional adjustable support assembly is placed on the ground, and the installation positioning box is placed on the three-dimensional adjustable support assembly. The guide sleeve is connected to the installation positioning box to guide the alignment and installation of the beam window and beam scraping mechanism within the installation positioning box. A hydraulic bellows assembly is located downstream of the installation positioning box to compensate for mechanical displacement of the beam window system during installation and operation, facilitating connection and sealing with the downstream interface. A vacuum pipe is located upstream of the beam line. This vacuum pipe achieves rapid vacuum connection and sealing with the upstream front-end bellows assembly via a quick-release chain assembly, facilitating system disassembly and maintenance. The quick-release chain assembly is supported and fixed by the pipe support assembly, ensuring the stability of the connection structure and the reliability of the seal. The beam window and scraping mechanism can be inserted as a whole into the installation positioning box via a guide sleeve. The inflatable bellows assembly expands after being filled with gas, achieving a reliable vacuum seal between itself and the corresponding mating surfaces of the installation positioning box. This not only improves the environmental adaptability and sealing stability of the beam window system, but also, through modular integration and an integrated insertion design, ensures that the beam window system can be remotely and quickly disassembled and replaced in strong radiation environments. This allows for efficient and rapid completion of the entire maintenance process (lifting, relocation, and reinstallation). Compatibility with multiple beam windows effectively reduces energy deposition in individual windows, extends service life, and meets the requirements for using ultrathin materials under high-power particle beams. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the beam window system of the present invention;

[0022] Figure 2 This is an axial cross-sectional schematic diagram of the beam window system of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the beam window and the beam scraping mechanism of the beam window system of the present invention;

[0024] Figure 4 This is an axial cross-sectional schematic diagram of the beam window and the beam scraping mechanism of the beam window system of the present invention;

[0025] Figure 5 for Figure 4 Enlarged view of a section at point I;

[0026] Figure 6 This is a schematic diagram of the structure of some components in the beam window and beam scraping mechanism of the beam window system of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the beam window assembly of the beam window system of the present invention;

[0028] Figure 8 for Figure 7 Sectional view along line A;

[0029] Figure 9 This is a cross-sectional schematic diagram of the beam window assembly of the beam window system of the present invention;

[0030] Figure 10 This is a schematic diagram of the beam scraping assembly structure of the beam window system of the present invention;

[0031] Figure 11 for Figure 10 Sectional view along line A;

[0032] Figure 12 for Figure 10 Partial sectional view along line B in the middle;

[0033] Figure 13 This is an axial cross-sectional view of the beam scraping assembly structure of the beam window system of the present invention;

[0034] Figure 14 for Figure 13 Enlarged view of a section at point I;

[0035] Figure 15 This is a schematic diagram of the guiding installation and support mechanism of the window system of the present invention.

[0036] Figure label:

[0037] 1. Beam window and scraper mechanism; 2. Guide installation and support mechanism; 11. Beam window assembly; 12. Scraper assembly; 13. Inflatable bellows assembly; 14. Fixed support; 15. Pipeline and cable assembly; 16. Shielding body; 21. Three-dimensional adjustable support assembly; 22. Mounting and positioning box; 23. Guide sleeve; 24. Hydraulic bellows assembly; 25. Vacuum pipeline; 26. Quick-release chain assembly; 27. Front bellows assembly; 28. Pipe support assembly; 111. Beam window front base plate; 112. Beam window rear base plate; 113. Window film; 114. Air inlet box; 115. Air outlet box; 116. Connecting pipe; 117. Positioning post; 121. Scraper front plate; 122. Scraper... 123. Beam back plate; 124. Water-cooled pipe assembly; 125. Scraper plate pipe; 126. Scraper plate retaining ring; 127. Ceramic pad; 128. Water inlet pipe connector; 129. Water inlet ceramic Kovar; 130. Water outlet pipe connector; 133. Feedthrough connector; 134. Probe mounting hole; 135. Scraper fixing ear; 136. Scraper hole; 131. Upstream corrugated pipe assembly; 132. Downstream corrugated pipe assembly; 151. Beam window air inlet pipe; 152. Beam window air outlet pipe; 153. Scraper water inlet pipe; 154. Scraper water outlet pipe; 155. Vacuum tube; 156. Corrugated pipe air inlet pipe; 157. Signal lead-out cable; 161. Quick connector; 162. Signal lead-out feedthrough. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0039] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, 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 embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. It should also be noted that in the description of the present invention, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0040] Existing beam window technologies generally suffer from problems such as high energy deposition, significant beam scattering, short lifespan, and difficulty in remote disassembly and replacement when facing high-power beam currents and high-radiation dose environments. This not only limits the stable and efficient operation of accelerators and high-power targets but also increases personnel safety risks. To address these issues, this application proposes an innovative beam window system design, aiming to optimize the beam window structure and enhance its functionality to meet the application requirements of high-power beam currents and high-radiation dose environments. The innovative technical approach includes employing a matrix-style ultra-thin dual-window helium cooling design, with the window... The material uses an ultra-thin metal film with excellent radiation resistance, coupled with a corresponding beam scraping system to remove beam halo particles, effectively reducing beam window energy deposition, reducing beam energy loss and scattering, and timely removing heat deposited on the window, thereby significantly improving the lifespan of the beam window and the system operating efficiency. At the same time, the beam window and beam scraping mechanism adopt an integrated insertion design with the shielding body, ensuring the convenience of remote disassembly, installation and maintenance of the beam window system under high radiation dose environment while ensuring the vacuum environment of the accelerator, providing a more stable and reliable accelerator system support for the production of medical isotopes.

[0041] The following is combined Figures 1 to 15 A specific embodiment of the beam window system of the present invention is described.

[0042] like Figure 1 , Figure 2 , Figure 3 and Figure 15As shown, the present invention provides a beam window system, including: a beam window and scraping mechanism 1, comprising a beam window assembly 11, a scraping assembly 12, an inflatable corrugated tube assembly 13, and a shield 16. The beam window assembly 11, the scraping assembly 12, and the inflatable corrugated tube assembly 13 are connected to form a module, which is connected to the shield 16 to form an integral assembly; and a guiding installation and support mechanism 2, comprising a three-dimensional adjustable support assembly 21, an installation positioning box 22, and a guide sleeve 23. The three-dimensional adjustable support assembly 21 is disposed on the ground, the installation positioning box 22 is disposed on the three-dimensional adjustable support assembly 21, and the guide sleeve 23 is connected to the installation positioning box 22. The beam window and scraping mechanism 1 can be inserted into the installation positioning box 22 as a whole through the guide sleeve 23. After the inflatable corrugated tube assembly 13 is filled with gas, a vacuum seal is achieved between the corresponding mating surfaces of the installation positioning box 22 and the frame window assembly 12. Specifically, the beam window system consists of two parts: the beam window and scraping mechanism 1 and the guiding installation and support mechanism 2. The beam window and scraping mechanism 1 is formed by connecting the beam window assembly 11, the scraping assembly 12, and the inflatable bellows assembly 13 into a module. This module is then connected to the shield 16 to form an integrated component. This modular design facilitates overall installation, maintenance, and replacement. In the guiding installation and support mechanism 2, the three-dimensional adjustable support assembly 21 is placed on the ground, providing stable foundation support for the entire system. The installation positioning box 22 is placed on the three-dimensional adjustable support assembly 21, and the guide sleeve 23 is connected to the installation positioning box 22, serving as a guide and positioning element. During installation, the beam window and scraping mechanism 1 can be inserted into the installation positioning box 22 as a whole through the guide sleeve 23 to achieve initial positioning and installation. Subsequently, by filling the inflatable bellows assembly 13 with gas, it deforms, thereby achieving a vacuum seal between the mating surfaces of the installation positioning box 22 and the beam window assembly 12. This ensures the vacuum environment of the particle accelerator and meets the system's operational requirements under high-power beam and high-irradiation dose environments. The three-dimensional adjustable support assembly 21 preferably enables multi-degree-of-freedom adjustment, such as horizontal translation adjustment along the X-axis and Y-axis, rotation adjustment around the Z-axis, and height adjustment along the Z-axis, thereby achieving precise spatial orientation adjustment of the mounting positioning box 22 and the entire beam window and scraping mechanism 1.

[0043] like Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, according to a beam window system of the present invention, the beam window and scraping mechanism 1 further includes a fixed support 14 and a pipeline and cable assembly 15; the module formed by the beam window assembly 11, the scraping assembly 12 and the inflatable corrugated tube assembly 13 is connected to the shield 16 through the fixed support 14. The top of the module is connected to the pipeline and cable assembly 15, which is embedded in a groove on the outer surface of the shield 16 and connected to a connector on the top of the shield 16; the pipeline and cable assembly 15 includes a beam window air inlet pipe 151, a beam window air outlet pipe 152, a scraping water inlet pipe 153, a scraping water outlet pipe 154, a vacuum pipe 155, a corrugated tube air inlet pipe 156, and a signal lead-out cable 157; the vacuum pipe 155 and the corrugated tube air inlet pipe 156 both adopt a main pipe and two branch pipe design, and the two branch pipes are respectively connected to the corresponding holes of the inflatable corrugated tube assembly 13. The module formed by the beam window assembly 11, the scraper assembly 12, and the inflatable corrugated pipe assembly 13 is not directly connected to the shield 16, but is connected to the shield 16 through a fixed support 14. The fixed support 14 serves to stably support the module and ensure the reliability of the connection between the module and the shield 16. The top of the module is connected to a pipe and cable assembly 15, which is embedded in a groove on the outer surface of the shield 16. This not only protects the pipes and cables but also makes the overall structure more compact. Furthermore, the pipe and cable assembly 15 connects to the connector on the top of the shield 16, enabling docking with external equipment. The piping and cable assembly 15 includes a beam window inlet pipe 151, a beam window outlet pipe 152, a beam scraper water inlet pipe 153, a beam scraper water outlet pipe 154, a vacuum pipe 155, a corrugated pipe inlet pipe 156, and a signal lead cable 157, etc., which respectively undertake the functions of helium supply and discharge for the beam window, cooling water supply and discharge for the beam scraper assembly 12, vacuuming and inflation for the inflation corrugated pipe assembly 13, and signal transmission. Among them, the vacuum pipe 155 and the corrugated pipe inlet pipe 156 preferably adopt a one-main-two-branch design, with the two branch pipes respectively connected to the corresponding holes of the inflation corrugated pipe assembly 13. This allows for unified vacuuming and inflation operations of the inflation corrugated pipe assembly 13, reducing the number of pipes and joints, simplifying the structure, and also helping to reduce the risk of system leakage.

[0044] like Figure 2 and Figure 15As shown, according to a snap-window system of the present invention, the guide installation and support mechanism 2 further includes a hydraulic bellows assembly 24, a vacuum pipe 25, a quick-release chain assembly 26, a front-end bellows assembly 27, and a pipe support assembly 28; the installation positioning box 22 is welded with the hydraulic bellows assembly 24 downstream of the snap-window and with the vacuum pipe 25 upstream of the snap-window. The vacuum pipe 25 is vacuum connected and sealed to the upstream front-end bellows assembly through the quick-release chain assembly 26. The quick-release chain assembly 26 is supported and mounted on the pipe support assembly 28; the three-dimensional adjustable support assembly 21 is installed on a steel plate pre-embedded in the ground. The installation positioning box 22 and the guide sleeve 23 are surrounded by an adjustable steel structure frame and a concrete shielding block; the bottom plate of the installation positioning box 22 is provided with a positioning hole that cooperates with the positioning post 117 of the snap-window assembly 11; the hydraulic bellows assembly 24 adopts a tapered flange. The installation positioning box 22 has a hydraulic bellows assembly 24 welded downstream of the beam line and a vacuum pipe 25 welded upstream of the beam line. The vacuum pipe 25 is vacuum connected and sealed to the upstream bellows assembly via a quick-release chain assembly 26. The quick-release chain assembly 26 is supported and mounted on the pipe support assembly 28, which provides stable support for the quick-release chain assembly 26, ensuring the reliability of the vacuum connection. The three-dimensional adjustable support assembly 21 is installed on a steel plate pre-embedded in the ground, enhancing the installation stability of the overall mechanism. The installation positioning box 22 and guide sleeve 23 are surrounded by an adjustable steel structure frame and concrete shielding blocks, further ensuring their support stability and radiation shielding effect. The bottom plate of the installation positioning box 22 has positioning holes that can cooperate with the positioning posts 117 of the beam window assembly 11 to achieve precise positioning of the beam window and scraping mechanism 1 during hoisting. The hydraulic bellows assembly 24 preferably uses a tapered flange, which helps the beam window system to be quickly and accurately inserted into the interface flange of the downstream equipment, realizing the connection and airtightness of the upstream and downstream equipment, and can also adjust for axial and radial installation connection errors.

[0045] like Figure 4 , Figure 5 , Figure 7 , Figure 8 , Figure 9As shown, a window sizing system of the present invention includes a window sizing assembly 11 comprising a front window substrate 111, a rear window substrate 112, and a window film 113; the front window substrate 111, the rear window substrate 112, and the window film 113 together form a double-layer window panel structure; the double-layer window panel structure is provided with a matrix-distributed window film 113, with partitions between each row of window film 113; each of the left and right sides of the double-layer window panel structure is provided with an air inlet box 114 and an air outlet box 115, with air grooves opened on the inner side of the air inlet box 114 and the air outlet box 115, and air inlet and outlet pipes connected to the upper end; the outer end of the front window substrate 111 is provided with a stepped hole, which is connected to the scraping assembly 12; a connecting pipe 116 is connected to the rear window substrate 112, which is connected to the inflation corrugated pipe assembly 13; positioning posts 117 are provided at the bottom of the air inlet box 114 and the air outlet box 115. Specifically, the front substrate 111, the rear substrate 112, and the window film 113 together form a double-layer window plate structure, which provides a stable support environment for the window film 113. The double-layer window plate structure has a matrix-distributed array of window films 113, with partitions between each row of window films 113. The partitions ensure that each row of window films 113 has an independent cooling channel, enhancing forced cooling efficiency. On the left and right sides of the double-layer window plate structure, there are air inlet boxes 114 and air outlet boxes 115, respectively. Air inlet boxes 114 and 115 have air grooves on their inner sides, with inlet and outlet pipes connected to their upper ends. Helium gas can enter the air inlet box 114 through the air grooves on the air inlet box 114, enter the independent chamber composed of the beam window substrate, window film 113, and partitions, then enter the outlet box 115 through the air grooves on the outlet box 115, and finally exit through the outlet pipe, thus achieving good cooling of the window film 113. A stepped hole is provided at the outer end of the front base plate 111 of the beam window, which connects to the beam scraping assembly 12, ensuring the stability of the connection between the two. A connecting pipe 116 is connected to the rear base plate 112 of the beam window, which connects to the inflation bellows assembly 13, achieving structural connection. In addition, positioning posts 117 are preferably provided at the bottom of the air inlet box 114 and the air outlet box 115. When the beam window and the beam scraping mechanism 1 are hoisted, the positioning posts 117 can cooperate with the positioning holes on the base plate of the mounting positioning box 22 to achieve precise positioning.

[0046] Furthermore, according to a beam window system of the present invention, the window film 113 is made of an ultra-thin metal film with a thickness of 50μm-200μm, and the window film 113 is spherical. Specifically, the use of an ultra-thin metal film with a thickness controlled within the range of 50μm-200μm can minimize beam obstruction, reduce beam energy loss and scattering, and ensure effective beam transmission. Simultaneously, the ultra-thin metal film, together with the front substrate 111 and the rear substrate 112 of the beam window, forms a double-layer window structure, enabling forced convection heat transfer of the cooling medium and timely removal of heat deposited on the window film 113. In addition, the main body of the window film 113 preferably adopts a spherical design, which can effectively disperse the stress generated under the combined action of pressure and heat power, reducing the risk of deformation or damage to the window film 113 due to stress concentration, thereby improving the stability and service life of the window film 113 under high-power beam and high-irradiation dose environments. On the other hand, the edges of the window film 113 can adopt a planar design to facilitate welding with the beam window substrate.

[0047] like Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 14 As shown, according to a beam window system of the present invention, the beam scraping assembly 12 includes a front beam scraping plate 121, a rear beam scraping plate 122, and a beam scraping plate pipe 124; the front beam scraping plate 121 and the rear beam scraping plate 122 are connected and embedded with a water-cooled pipe assembly 123 to form a beam scraping plate assembly; a beam scraping plate fixing ring 125 is connected inside the beam scraping plate pipe 124, and a plurality of ceramic pads 126 are evenly distributed in the circumferential direction on the upstream end face of the beam scraping plate fixing ring 125, and the beam scraping plate assembly is set on the beam scraping plate fixing ring 125 by the ceramic pads 126 and bolts; the beam scraping plate pipe The upper and lower ends of 124 are respectively provided with an inlet pipe connector 128 and an outlet pipe connector 130, which are internally connected to an inlet ceramic Kovar 129 and an outlet ceramic Kovar 130, respectively; adjacent to the inlet pipe connector 128, the scraper plate pipe 124 is also provided with a feedthrough installation pipe, which is connected to a feedthrough connector 133; the front scraper plate 121 and the rear scraper plate 122 are provided with probe mounting holes 134; the front scraper plate 121 and the rear scraper plate 122 are provided with a matrix of scraper holes 136, which correspond one-to-one with the downstream window film 113.

[0048] The scraper plate front plate 121 and scraper plate rear plate 122 are connected together, and a water-cooled pipe assembly 123 is embedded inside, forming a scraper plate assembly. The water-cooled pipe assembly 123 can effectively cool the scraper plate. A scraper plate fixing ring 125 is connected inside the scraper plate pipe 124. Multiple ceramic pads 126 are evenly distributed in the circumferential direction on the upstream end face of the fixing ring. The scraper plate assembly is set on the scraper plate fixing ring 125 through the cooperation of the ceramic pads 126 and bolts. The ceramic pads 126 can achieve insulation between the scraper plate assembly and the scraper plate pipe 124. The upper and lower ends of the scraper plate pipe 124 are respectively provided with an inlet pipe connector 128 and an outlet pipe connector 130 for connecting to the water-cooled pipe assembly 123. The inlet ceramic Kovar 129 and the outlet ceramic Kovar 130 are connected inside, which not only ensures the circulation of cooling water, but also further enhances the insulation effect. Adjacent to the inlet pipe connector 128, a feedthrough installation pipe is also provided, which is connected to a feedthrough connector 133. Simultaneously, probe mounting holes 134 are provided on the front and rear beam scraping plates 121 and 122, allowing for the installation of electrical signal probes. Thanks to the insulation design, electrical signals can be smoothly extracted through the cable connected to the feedthrough connector 133. Furthermore, the front and rear beam scraping plates 121 and 122 are provided with matrix-distributed beam scraping holes 136, each corresponding to a downstream window diaphragm 113, enabling precise removal of stray particles from the beam and ensuring the safe operation of the downstream beam window assembly 11.

[0049] Furthermore, according to a beam window system of the present invention, the front scraper plate 121 and the rear scraper plate 122 are made of high-conductivity oxygen-free copper. This material has excellent thermal conductivity and can quickly conduct away the heat deposited on the scraper plate when the beam passes through the scraper aperture 136, ensuring the heat dissipation efficiency of the scraper assembly 12. The water-cooled pipe assembly 123 is made of stainless steel. Stainless steel has good corrosion resistance and can adapt to the long-term flow of cooling water under high radiation dose environments. The water-cooled pipe assembly 123 is enclosed by the front scraper plate 121 and the rear scraper plate 122. The high thermal conductivity of the high-conductivity oxygen-free copper can be used to achieve efficient heat transfer between the scraper plate and the water-cooled pipe assembly 123, ensuring the cooling effect. It can also avoid direct contact between the cooling water and the high-conductivity oxygen-free copper scraper plate, preventing the high-speed flowing cooling water under high radiation doses from corroding the oxygen-free copper plate, thereby extending the service life of the scraper assembly 12.

[0050] like Figure 10 and Figure 11As shown, according to a snap-window system of the present invention, the snap-window plate pipe 124 is provided with snap-window fixing ears 135 on both sides. Multiple threaded holes are evenly distributed on the outer surface of the snap-window fixing ears 135, and multiple threaded holes are also evenly distributed on the outer surface of the snap-window assembly 11. A module consisting of the snap-window assembly 11, the snap-window assembly 12, and the inflatable bellows assembly 13 is installed in a fixed support 14 by bolt connection. The fixed support 14 and the shield 16 form an integral insert structure. Specifically, the snap-window plate pipe 124 is provided with snap-window fixing ears 135 on both sides, and multiple threaded holes are evenly distributed on the outer surface of the snap-window fixing ears 135. Simultaneously, multiple threaded holes are also evenly distributed on the outer surface of the snap-window assembly 11, and the positions of these threaded holes are matched. By passing bolts through these corresponding threaded holes, the snap-window assembly 11, the snap-window assembly 12, and the inflatable bellows assembly 13 can be firmly connected to form a module, which is then installed in the fixed support 14. The fixed support 14 is then connected to the shield 16 to form an integral plug-in structure, making the module a tight whole. The integral plug-in design also facilitates the installation, disassembly and maintenance of the beam window and beam scraping mechanism 1 through remote operation in high radiation dose environments. At the same time, it helps to ensure the structural compactness and operational stability of the entire system.

[0051] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, according to a beam window system of the present invention, the inflatable bellows assembly 13 includes an upstream bellows assembly 131 and a downstream bellows assembly 132. In the axial direction of the inflatable bellows assembly 13, the opposite sides of the upstream bellows assembly 131 and the downstream bellows assembly 132 are respectively welded to both ends of a pipe structure used to support the beam window assembly 11 and the beam scraping assembly 12. A metal film is welded to the opposite end faces of the upstream bellows assembly 131 and the downstream bellows assembly 132. This metal film can bulge after inflation, achieving a sealing fit with the mating surface corresponding to the inner wall of the mounting positioning box 22. Specifically, the inflatable bellows assembly 13 is specifically divided into an upstream bellows assembly 131 and a downstream bellows assembly 132, each corresponding to a different position in the beam transmission. The upstream bellows assembly 131 and the downstream bellows assembly 132 are welded to the pipe structure on opposite sides. The beam window assembly 11 and the scraper assembly 12, as described above, are disposed on the pipe structure between the upstream bellows assembly 131 and the downstream bellows assembly 132. A metal film is welded to the opposite end faces of the upstream bellows assembly 131 and the downstream bellows assembly 132. When gas is filled into the inflatable bellows assembly 13, the corrugated expansion structure of the upstream bellows assembly 131 and the downstream bellows assembly 132 will extend axially, causing the opposite end faces of the upstream bellows assembly 131 and the downstream bellows assembly 132 to approach the inner walls of the mounting and positioning boxes 22 on both sides. At the same time, the metal film will bulge due to the internal pressure. The bulging metal film can fit tightly against the corresponding mating surface on the inner wall of the mounting and positioning box 22, thereby achieving a vacuum seal between the two, effectively isolating the high vacuum environment of the accelerator from the atmospheric or helium environment of the target chamber, ensuring the stability of the vacuum environment during beam transmission, and also providing a guarantee for the safe and reliable operation of the entire beam window system.

[0052] Preferably, according to one embodiment of the present invention, the shielding body 16 adopts an integral structure and is made of iron, carbon steel, or concrete. The surface of the shielding body 16 facing the beam has mounting grooves for pipes and cables, and the mounting grooves adopt a Z-shaped design. The top of the shielding body 16 has quick connectors 161 for connecting water and gas lines and signal lead-out feedthroughs 162. The top of the shielding body 16 has lifting lugs, and guide rail grooves are provided on the left and right sides. During installation, the guide rail grooves cooperate with the guide rails on the left and right sides inside the guide sleeve 23. The shielding body 16 adopts an integral structure and can be made of iron, carbon steel, or concrete, possessing good radiation shielding performance. It can effectively block the beam from passing through the beam window and the neutrons and gamma rays generated during target firing, reducing the impact of radiation on the surrounding environment and personnel. The mounting grooves on the surface of the shielding body 16 facing the beam for accommodating pipes and cables are preferably designed in a Z-shape or other tortuous shape. Compared to straight grooves, this avoids radiation leakage from bottom to top along the groove, further improving the shielding effect. The top of the shield 16 is equipped with a quick connector 161 and a signal feeder 162. The quick connector 161 is used to connect to external water and gas lines, enabling quick connection with pipelines and cable assemblies 15. The signal feeder 162 is used to safely extract electrical signals from within the system. Furthermore, the top of the shield 16 is equipped with lifting lugs for easy hoisting of the beam window and beam scraping mechanism 1 using overhead cranes or other equipment. Guide rail grooves are provided on its left and right sides, which, during installation, cooperate with the guide rails on the left and right sides inside the guide sleeve 23 to provide precise guidance for the beam window and beam scraping mechanism 1 to be inserted into the installation positioning box 22, ensuring a smooth installation process.

[0053] like Figures 1 to 15 As shown, the preferred embodiment of the binning window system according to the present invention is as follows:

[0054] The present invention provides an ultra-thin high-power beam window system for use in high-irradiation-dose environments, including a beam window and beam scraping mechanism 1 and a guide mounting and support mechanism 2.

[0055] The bundle window and scraping mechanism 1 includes a bundle window assembly 11, a scraping assembly 12, an inflatable corrugated pipe assembly 13, a fixed support 14, a pipeline and cable assembly 15, and a shield 16.

[0056] The beam window assembly 11, the beam scraper assembly 12, and the inflatable corrugated pipe assembly 13 are connected together to form a module. The top of the module is connected to a pipe and cable assembly 15, which is embedded in a groove on the outer surface of the shield 16 and connected to a quick connector on the top of the shield 16. The module is connected to the shield 16 through a fixed support 14 to form an integral assembly.

[0057] The beam window assembly 11 includes a front beam window substrate 111, a rear beam window substrate 112, a window film 113, an air inlet box 114, an air outlet box 115, a connecting pipe 116, and a positioning post 117. The front and rear beam window substrates, the window film, the air inlet box, and the air outlet box together form a sealed chamber, forming a double-layer window panel structure. The window panel is provided with a matrix-distributed window film 113, which is cooled by helium gas in the middle. There are partitions between each row of window films to ensure that each row of window films has an independent cooling channel to enhance the forced cooling efficiency.

[0058] Each side has an inlet / outlet gas box, and the inlet / outlet gas box has a gas groove on the inner side. The upper end of the inlet / outlet gas box is connected to an inlet / outlet gas pipe. Helium gas enters the inlet gas box through the inlet gas pipe, enters the independent chamber composed of the beam window substrate, window film and partition through the gas groove on the inlet gas box, enters the outlet gas box through the gas groove on the outlet gas box, and finally exits through the outlet gas pipe to ensure good cooling of the window film.

[0059] The outer end of the front base plate 111 of the beam window is provided with a stepped hole to facilitate connection with the beam scraping assembly 12; the rear base plate 112 of the beam window is connected with a connecting pipe 116 to facilitate connection with the inflation bellows assembly 13; the bottom of the inlet and outlet air box is provided with a positioning post 117, which can play a precise positioning role when the beam window and beam scraping mechanism 1 are hoisted.

[0060] Furthermore, each window film 113 in the window assembly 11 preferably adopts a spherical design to reduce stress deformation under the combined action of pressure and heat. In addition, the edges of the window film 113 are preferably flat to facilitate installation.

[0061] Furthermore, the beam window assembly 11 preferably uses an ultra-thin metal film as the window film material, with a thickness of approximately 50μm-200μm. This reduces beam loss and, on the other hand, forms a sealed chamber integral with the substrate, enabling forced convection heat transfer of the cooling medium. Helium cooling is employed because water, with its strong proton-blocking ability, leads to significant beam loss, and high-power beams require high water pressure, which the ultra-thin film material cannot withstand. Helium, however, achieves a high flow rate at near-vacuum pressure, ensuring both the reliability and lifespan of the window film, guaranteeing its high thermal conductivity at high temperatures, and reducing beam loss due to the cooling medium.

[0062] The scraper assembly 12 includes a scraper front plate 121, a scraper rear plate 122, a water-cooled pipe assembly 123, a scraper plate pipe 124, a scraper plate fixing ring 125, a ceramic pad 126, bolts, a water inlet pipe connector 128, a water inlet ceramic Kovar 129, a water outlet pipe connector 130, a water outlet ceramic Kovar, a feedthrough mounting pipe, a feedthrough connector 133, a probe mounting hole 134, and a scraper fixing ear 135.

[0063] The front scraper plate 121 and the rear scraper plate 122 are connected, and a water-cooled pipe assembly 123 is embedded therein to form a scraper plate assembly. A scraper plate fixing ring 125 is connected inside the scraper plate pipe 124. Several ceramic pads 126 are evenly distributed in the circumferential direction on the upstream end face of the scraper plate fixing ring 125. The scraper plate assembly is fixedly installed on the scraper plate fixing ring 125 by the cooperation of the ceramic pads 126 and several corresponding bolts, so as to achieve insulation between the scraper plate assembly and the scraper plate pipe 124.

[0064] The upper and lower ends of the scraper plate pipe 124 are provided with an inlet pipe connector 128 and an outlet pipe connector 130. The inlet pipe connector 128 and the outlet pipe connector 130 are connected to an inlet ceramic Kovar 129 and an outlet ceramic Kovar 130, respectively. The upper end of the inlet ceramic Kovar 129 is connected to the scraper plate inlet pipe, and the lower end is connected to the water cooling pipe assembly 123. The upper end of the outlet ceramic Kovar is connected to the water cooling pipe assembly 123, and the lower end is connected to the scraper plate outlet pipe, forming a closed cooling circuit and achieving insulation from the scraper plate pipe 124.

[0065] A feedthrough mounting pipe is provided on one side of the water inlet pipe, and a feedthrough connector 133 is connected in the feedthrough mounting pipe; a probe mounting hole 134 is provided on the scraper plate, which can be used to install an electrical signal probe; since the scraper plate assembly and water circuit connection are both designed with insulation, an electrical signal can be led out after connecting the signal lead-out cable 157 to the feedthrough connector 133.

[0066] The front and rear beam scraping plates are provided with matrix-distributed beam scraping holes 136, which correspond one-to-one with the window film 113 of the beam window distributed downstream, which can scrape away unwanted stray particles and ensure the safety of the downstream beam window assembly 11.

[0067] When the beam passes through the scraping aperture, some stray particles deposit on the scraping plate, causing its temperature to rise. To ensure good heat dissipation, the scraping plate is generally made of high-conductivity oxygen-free copper. However, since the scraping assembly operates under high radiation doses for extended periods, if cooling water flows directly at high speed through the oxygen-free copper scraping plate, the high-speed flow of cooling water under high radiation doses will cause severe corrosion to the oxygen-free copper plate, affecting its service life. Therefore, a stainless steel water-cooled pipe assembly is embedded in the scraping plate, with the upper and lower scraping plates enclosing the stainless steel water-cooled pipe assembly. This achieves good heat conduction while preventing direct contact between the cooling water and the oxygen-free copper scraping plate.

[0068] The inflatable bellows assembly 13 includes an upstream bellows assembly 131 and a downstream bellows assembly 132; the opposite sides of the upstream bellows assembly 131 and the downstream bellows assembly 132 are respectively welded to the pipeline structure between them; a metal film is welded to the end face of the opposite side of the two, and after inflation, the metal film bulges up to achieve a vacuum seal with the mating surface corresponding to the inner wall of the mounting positioning box 22.

[0069] The shield 16 preferably adopts an integrated structure, and the material can be iron, carbon steel or concrete, etc., which can shield neutrons and gamma rays generated when the beam passes through the beam window and during the target firing process; the surface facing the beam is provided with pipe and cable installation grooves, and the installation grooves adopt a Z-shaped design instead of a straight groove design, which can prevent radiation from leaking from bottom to top along the straight groove.

[0070] The shield 16 is equipped with a quick connector 161 and a signal feeder 162 at the top; the pipeline and cable assembly 15 is embedded in the mounting groove on the outer surface of the shield and connected to the quick connector at the top of the shield, which can be quickly connected and disconnected with external water pipes and air pipes by a robotic arm; the top of the shield is equipped with lifting lugs and guide rail grooves on the left and right sides, which cooperate with the guide rails on the left and right sides inside the guide sleeve 23 during installation to ensure the smooth hoisting of the beam window and the overall beam assembly.

[0071] The piping and cable assembly 15 includes a beam window air inlet pipe 151, a beam window air outlet pipe 152, a beam scraper water inlet pipe 153, a beam scraper water outlet pipe 154, a vacuum pipe 155, a corrugated pipe air inlet pipe 156, and a signal lead-out cable 157.

[0072] Both the vacuum tube 155 and the corrugated air inlet tube 156 adopt a main tube and two branch tube design. The two branch tubes are respectively connected to the corresponding holes of the upstream corrugated tube assembly 131 and the downstream corrugated tube assembly 132. This enables unified vacuuming and air intake operations of the two sets of gas-filled corrugated tube assemblies in the upstream and downstream of the beam window and beam scraping mechanism, reducing the number of pipes and joints, reducing the slotted area on the shield, and lowering the radiation dose leakage rate.

[0073] The scraper plate pipe 124 is provided with scraper fixing ears 135 on both sides, and the outer side of the fixing ears is evenly distributed with several threaded holes; the outer side of the air inlet and outlet box of the beam window assembly is also evenly distributed with several threaded holes; by bolt connection, the module composed of beam window assembly 11, scraper assembly 12 and air-filled corrugated pipe assembly 13 can be installed in the fixed support 14, and then the fixed support 14 and the shield 16 form an integral insert assembly, namely beam window and scraper mechanism 1.

[0074] In addition, the guide installation and support mechanism 2 includes a three-dimensional adjustable support assembly 21, an installation positioning box 22, a guide sleeve 23, a hydraulic bellows assembly 24, a vacuum pipe 25, a quick-release chain assembly 26, a front-end bellows assembly 27, and a pipe support assembly 28.

[0075] The three-dimensional adjustable support assembly 21 is set on the ground, and the mounting positioning box 22 is bolted to the three-dimensional adjustable support assembly 21. The guide sleeve 23 is connected to the mounting positioning box 22. The mounting positioning box 22 is welded with a hydraulic bellows assembly 24 downstream of the beamline, which can achieve a sealed connection with the downstream target chamber of the beam window assembly. The mounting positioning box 22 is welded with a vacuum pipe 25 upstream of the beamline. The vacuum pipe 25 is vacuum connected and sealed with the upstream front-end bellows assembly 27 through a quick-release chain assembly 26. The quick-release chain assembly 26 is supported and set on the pipe support assembly 28. The front-end bellows assembly 27 can achieve a sealed connection between the beam window and the beam scraping mechanism and the upstream vacuum pipe, and eliminate deformation caused by processing and installation errors, ensuring the continuity of the vacuum connection.

[0076] The beam window and scraper mechanism 1 can be hoisted by an overhead crane and precisely inserted into the installation positioning box 22 via the guide sleeve 23, achieving coarse positioning and installation of the beam window and scraper mechanism 1; after helium or compressed air is filled into the inflatable bellows assembly 13, the metal film at the bellows and flange ends can bulge, achieving vacuum sealing between the upstream bellows assembly 131 and the downstream bellows assembly 132 and the corresponding mating surfaces of the inner sidewall of the installation positioning box 22.

[0077] The three-dimensional adjustable support assembly 21 is installed on a steel plate pre-embedded in the ground. The mounting positioning box 22 is connected to the three-dimensional adjustable support assembly 21, and the guide sleeve 23 is connected to the top of the mounting positioning box 22. The mounting positioning box 22 and the guide sleeve 23 are surrounded by an adjustable steel structure frame and a concrete shielding block to ensure their support stability and radiation shielding.

[0078] When the beam window and beam scraping mechanism 1 are hoisted by an overhead crane, they can be guided by the guide rail grooves on the left and right sides of the shield 16 and the guide rails on the inside of the guide sleeve 23. The mounting positioning box 22 has positioning holes on its bottom plate. With the help of the positioning post 117 of the beam window assembly 11, it can be quickly inserted into the positioning hole on the mounting positioning box 22 to achieve precise positioning of the beam window and beam scraping mechanism 1. Then, by fine-tuning the three-dimensional adjustable support assembly 21, the center of the beam window system and the beam center can be further precisely positioned.

[0079] The hydraulic bellows assembly 24 is connected to the mounting and positioning box 22, which can adjust the axial and radial installation connection errors of the interface of the beam window system and the downstream high-power target irradiation chamber; the tapered flange helps the beam window system to be quickly and accurately inserted into the interface flange of the irradiation chamber, realizing the connection and airtightness of the upstream and downstream equipment.

[0080] The ultra-thin high-power beam window system of this invention features a compact structure. The window structure employs a double-window air-cooled design, using a spherical metal thin film as the material. This significantly reduces beam energy deposition in the window material and cooling medium, minimizes beam loss and scattering, and simultaneously reduces the pressure and thermal stress on the window film, effectively improving its radiation resistance limit and service life. The beam window assembly uses helium cooling. Compared to water and most other cooling gases, helium offers significant advantages such as low beam loss and scattering, low activation dose, low required pressure, and high safety, without affecting the service life of the window material. A partition is installed between each row of window films in the beam window assembly, ensuring each row has an independent cooling channel and enhancing its forced cooling efficiency. The scraper assembly uses an embedded water-cooling pipe design, ensuring good heat exchange on the copper scraper substrate while preventing severe corrosion of the oxygen-free copper plate by high-speed flowing cooling water under high radiation doses, thus improving the scraper plate's service life. The modular design of the beam window assembly, beam scraping assembly, tubing and cables, and inflatable corrugated pipe assembly, along with the overall insertion design of the shielding body, allows the beam window and beam scraping system to be installed and disassembled quickly and conveniently as a whole component. In particular, the quick connectors enable the robotic arm to quickly and efficiently disconnect and connect the tubing and cables, achieving fully automated operation in high-irradiation environments and ensuring personnel safety.

[0081] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "method," "specific method," or "some methods," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or method is included in at least one embodiment or method of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or method. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or methods. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or methods described in this specification, as well as the features of different embodiments or methods.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bundle window system, characterized by It comprises: a beam window and wiper mechanism (1) comprising a beam window assembly (11), a wiper assembly (12), an air-filled bellows assembly (13) and a shield (16), the beam window assembly (11), the wiper assembly (12) and the air-filled bellows assembly (13) being connected to form a module, which, in combination with the shield (16), constitutes an integral assembly; a guiding, mounting and supporting mechanism (2) comprising a three-dimensional adjustable support assembly (21), a mounting and positioning box (22), a guiding sleeve (23), a hydraulic bellows assembly (24), a vacuum pipe (25), a quick-release chain assembly (26), a front-end bellows assembly (27) and a pipe support assembly (28), the three-dimensional adjustable support assembly (21) being arranged on the ground, the mounting and positioning box (22) being arranged on the three-dimensional adjustable support assembly (21), the guiding sleeve (23) being connected to the mounting and positioning box (22), the mounting and positioning box (22) being welded with the hydraulic bellows assembly (24) downstream of the beam line and with the vacuum pipe (25) upstream of the beam line, the vacuum pipe (25) being connected and sealed in vacuum with the front-end bellows assembly (27) upstream thereof through the quick-release chain assembly (26), the quick-release chain assembly (26) being supported and arranged on the pipe support assembly (28); the beam window and wiper mechanism (1) being integrally inserted into the mounting and positioning box (22) through the guiding sleeve (23), the air-filled bellows assembly (13) being filled with air to realize vacuum sealing with the corresponding mating surface of the mounting and positioning box (22).

2. The beam window system of claim 1, wherein, the beam window and wiper mechanism (1) further comprising a fixed support (14) and a pipe and cable assembly (15); the module formed by the beam window assembly (11), the wiper assembly (12) and the air-filled bellows assembly (13) being connected to the shield (16) through the fixed support (14), the top of the module being connected with the pipe and cable assembly (15), the pipe and cable assembly (15) being embeddedly arranged in a groove on the outer surface of the shield (16) and connected with the joint on the top of the shield (16); the pipe and cable assembly (15) comprising a beam window air inlet pipe (151), a beam window air outlet pipe (152), a wiper water inlet pipe (153), a wiper water outlet pipe (154), a vacuum pipe (155), a bellows air inlet pipe (156) and a signal lead-out cable (157); the vacuum pipe (155) and the bellows air inlet pipe (156) each adopting a design of one main pipe and two branch pipes, the two branch pipes being connected to the corresponding holes of the air-filled bellows assembly (13) respectively.

3. The beam window system according to claim 1, wherein the three-dimensional adjustable support assembly (21) is mounted on a steel plate pre-buried in the ground, adjustable steel structure frames and concrete shielding blocks being arranged around the mounting and positioning box (22) and the guiding sleeve (23); a positioning hole is arranged on the bottom plate of the mounting and positioning box (22) and cooperates with a positioning column (117) of the beam window assembly (11); the hydraulic bellows assembly (24) adopts a conical flange.

4. The beam window system of claim 3, wherein, The beam window assembly (11) comprises a beam window front substrate (111), a beam window rear substrate (112) and a window film (113); The beam window front substrate (111), the beam window rear substrate (112) and the window film (113) jointly form a double-layer window plate structure; The double-layer window plate structure is provided with the window film (113) distributed in a matrix form, and a partition plate is arranged between each row of window films; The double-layer window plate structure is provided with an air inlet box (114) and an air outlet box (115) on the left and right sides, air grooves are formed in the inner sides of the air inlet box (114) and the air outlet box (115), and air inlet and outlet pipes are connected to the upper ends of the air grooves; A stepped hole is formed in the outer end of the beam window front substrate (111) and connected with the beam scraping assembly (12); The beam window rear substrate (112) is connected with a connecting pipe (116) and connected with the air charging corrugated pipe assembly (13); Positioning columns (117) are arranged at the bottoms of the air inlet box (114) and the air outlet box (115).

5. The beam window system of claim 4, wherein, The window film (113) is made of an ultra-thin metal film material with a thickness of 50-200 μm and has a spherical shape.

6. The beam window system of claim 1, wherein, The beam scraping assembly (12) comprises a beam scraping front plate (121), a beam scraping rear plate (122) and a beam scraping plate pipeline (124); The beam scraping front plate (121) and the beam scraping rear plate (122) are connected and embedded with a water cooling pipe assembly (123) to form a beam scraping plate assembly; A beam scraping plate fixing ring (125) is connected in the beam scraping plate pipeline (124), a plurality of ceramic pads (126) are uniformly distributed on the upstream end face of the beam scraping plate fixing ring (125) in the circumferential direction, and the beam scraping plate assembly is arranged on the beam scraping plate fixing ring (125) through the ceramic pads (126) and bolts; Water inlet and outlet ceramic Kovar (129) are respectively connected to the water inlet pipe connecting pipe (128) and the water outlet pipe connecting pipe (130) at the centers of the upper end and the lower end of the beam scraping plate pipeline (124); A feedthrough mounting pipe is further arranged on the beam scraping plate pipeline (124) at a position adjacent to the water inlet pipe connecting pipe (128), a feedthrough connector (133) is connected to the feedthrough mounting pipe, and probe mounting holes (134) are arranged on the beam scraping front plate (121) and the beam scraping rear plate (122); The beam scraping front plate (121) and the beam scraping rear plate (122) are made of high-conductivity oxygen-free copper material, the water cooling pipe assembly (123) is made of stainless steel material, and the water cooling pipe assembly (123) is wrapped in the beam scraping front plate (121) and the beam scraping rear plate (122).

7. The beam window system of claim 6, wherein, The beam scraping front plate (121) and the beam scraping rear plate (122) are made of high-conductivity oxygen-free copper material, the water cooling pipe assembly (123) is made of stainless steel material, and the water cooling pipe assembly (123) is wrapped in the beam scraping front plate (121) and the beam scraping rear plate (122).

8. The beam window system of claim 6, wherein, The scraping beam pipe (124) is provided with scraping beam fixing ears (135) on both sides, the outer side of the scraping beam fixing ear (135) is uniformly provided with a plurality of threaded holes, the outer side of the beam window assembly (11) is also uniformly provided with a plurality of threaded holes, the module composed of the beam window assembly (11), the scraping beam assembly (12) and the inflatable corrugated pipe assembly (13) is installed in the fixed support (14) through bolt connection, and the fixed support (14) and the shielding body (16) form an integral plug-in structure.

9. The beam window system of any one of claims 1 to 8, wherein, The inflatable corrugated pipe assembly (13) comprises an upstream corrugated pipe assembly (131) and a downstream corrugated pipe assembly (132); In the axial direction of the inflatable corrugated pipe assembly (13), the opposite sides of the upstream corrugated pipe assembly (131) and the downstream corrugated pipe assembly (132) are respectively welded to the two ends of the pipe structure for bearing the beam window assembly (11) and the scraping beam assembly (12), and metal films are welded on the end faces of the opposite sides of the upstream corrugated pipe assembly (131) and the downstream corrugated pipe assembly (132), the metal films can be inflated to bulge, and realize sealing cooperation with the corresponding cooperation surface of the inner side wall of the installation positioning box (22).

10. The beam window system of any one of claims 1 to 8, wherein, The shielding body (16) adopts an integral structure, and is made of iron, carbon steel or concrete; The shielding body (16) is provided with an installation groove for pipelines and cables on the surface facing the beam current, and the installation groove adopts a Z-shaped design; The shielding body (16) is provided with a quick connector (161) for connecting water pipes and air pipes and a signal lead-through (162) on the top; The shielding body (16) is provided with lifting lugs and guide rail grooves on the left and right sides, and the guide rail grooves are matched with the guide rails on the left and right sides in the guide sleeve (23) during installation.

Images