Proton beam energy adjustment degrader with cooling device

TW202631087AActive Publication Date: 2026-08-01NAT ATOMIC RES INST
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Patent Information

Authority / Receiving Office
TW · TW
Patent Type
Applications
Current Assignee / Owner
NAT ATOMIC RES INST
Filing Date
2025-01-24
Publication Date
2026-08-01

AI Technical Summary

Technical Problem

Conventional proton beam energy reduction devices face issues with high temperatures leading to material deformation and damage, requiring complex external cooling setups that are not suitable for compact cyclotron accelerators.

Method used

A proton beam energy modulator with an integrated cooling device, featuring a rotation drive unit, coolant circulator, and energy reduction mechanism, which uses a cooling plate with internal coolant channels to dissipate heat and prevent deformation, allowing for adjustable energy reduction without bulky external cooling systems.

Benefits of technology

The device effectively cools the proton beam energy modulator, preventing material damage and extending its service life while simplifying the setup, reducing costs, and enhancing versatility in energy adjustment and irradiation range control.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

A proton beam energy adjustment degrader with cooling device is disclosed, which includes a rotation drive part, a base, a cooling part, a coolant circulation machine and a de-energizing driving part. The base includes a body, a first transmission component and a second transmission component. The first transmission component is connected to the first motor component and the second transmission component is connected to the second motor component. The cooling part includes a rotary input joint, a first rotary part, a cooling plate, a frame and a rotary output joint. The first rotary part is connected to the first transmission component and penetrates the rotary input joint. One end of the cooling plate is connected to the first rotary member. The other end of the cooling plate is disposed through the rotary output joint. The coolant is fed into the cooling plate through an inlet pipe and output through an outlet pipe. The de-energizing film is wound around the cooling plate to form a proton penetration portion to reduce the proton beam from the first energy to the second energy.
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Description

Proton beam energy modulator with cooling device This invention relates to a proton beam energy adjustment de-energizer, and more particularly to a proton beam energy adjustment de-energizer having a cooling device to cool the device and prevent high temperature from affecting the de-energizing effect. A proton is a positively charged particle, equivalent to the nucleus of a hydrogen atom, or, together with a neutron, forming the nucleus of other elements. After proper acceleration, proton beams can be used to treat tumors, simulate space radiation, or for other scientific and industrial applications. The most famous characteristic of proton beams is the Bragg peak, meaning that protons of a specific energy release almost all their energy at a certain depth after penetrating tissue, while beyond that depth, the energy they receive is negligible. This is why, on a dose-depth map, proton beams exhibit a distinct sharp peak at a specific depth, unlike photons. Modern medicine utilizes proton therapy, which effectively focuses a high-dose area on the primary tumor site through multi-stage radiation modulation, reducing the dose received by normal tissues. However, some organs and tissues are inherently located on the periphery of high-dose areas or along paths where radiation frequently penetrates, so they inevitably still receive a relatively high proportion of radiation. In fact, the success of radiotherapy often depends not only on the tumor's sensitivity to radiation but also on the tolerance of normal tissues, preventing further increases in dose and improvement in treatment efficacy. In the field of particle accelerators, especially in the field of accelerators for proton and heavy ion therapy, in order to reduce the cost of equipment manufacturing, most accelerators are compact fixed-energy accelerators as particle sources. By changing the particle energy sub-beams extracted from the accelerator, proton beams can be achieved. For different irradiation depths of lesions in the human body, energy degraders are generally used. The energy of a proton beam is generally changed by blocking objects. The most common energy reduction device technology has two types: (1) a device based on a rotating mechanism, which uses multiple blocks arranged around the rotating mechanism to achieve the energy reduction function; (2) an insertion mechanism arrangement, which uses a combination of wedge blocks with two thickness variations to achieve the energy reduction function. The conventional energy reduction device mostly uses two or more symmetrical wedge block structures. By using different registrations of symmetrical insertion, the thickness of the energy reduction device material through which the beam passes can be continuously changed, thereby achieving energy regulation. By using the change of the thickness of different blocks, the energy of the proton beam can be changed. This type of energy reduction device can achieve continuous energy regulation, but it requires high positioning accuracy of the energy reduction blocks. Conventional energy reduction devices are not only bulky and can only reduce the energy of a fixed proton beam without being easily adjustable or controlled, but also generate high temperatures in the device and reducing materials during proton beam irradiation. Prolonged operation can easily cause material deformation or damage, thus affecting the directionality and uniformity of the proton beam. Current technologies for cooling energy reduction devices mostly utilize external air cooling, liquid cooling, or a combination of both on the energy reduction unit, resulting in a complex overall device that is not directly applicable to various cyclotron accelerators. In summary, although existing technologies include external cooling devices, they still have significant drawbacks in terms of setup complexity, space requirements, and cooling effectiveness. To address these issues, the inventors of this invention have conceived and designed a proton beam energy modulator / de-energizer with a cooling device, aiming to improve upon the problems of conventional technologies and thereby enhance its industrial application. In view of the problems of the prior art, the object of the present invention is to provide a proton beam energy adjustment de-energizer with a cooling device to solve the problem that conventional proton beam devices are difficult to cool down simply, easily and at low cost when performing energy reduction. According to one objective of the present invention, a proton beam energy adjustment and de-energizing device with a cooling mechanism is provided, comprising a rotation drive unit, a base, a cooling device unit, a coolant circulator, and the de-energizing drive unit. The rotation drive unit includes a first motor component and a second motor component, the first motor component being adjacent to the second motor component. The base is disposed on the rotation drive unit and includes a body, a first transmission component, and a second transmission component. The first and second transmission components are embedded in the body, the first transmission component being connected to the first motor component, and the second transmission component being connected to the second motor component. The cooling device unit is disposed on the base and includes a rotary input connector, a first rotating component, a cooling plate, a frame, and a rotary output connector. The rotary input connector is disposed on the body, the first rotating component is connected to the first transmission component and passes through the rotary input connector, one end of the cooling plate is connected to the first rotating component, the frame extends from one end of the body to a corresponding position above the first rotating component, the rotary output connector is disposed on the frame, and the other end of the cooling plate passes through the rotary output connector. The coolant circulator includes an input pipe and an output pipe, the input pipe being connected to the rotary input connector, and the output pipe being connected to the rotary output connector. An energy reduction drive unit is disposed on a base. The energy reduction drive unit includes a second rotating member and an energy reduction film member. The second rotating member is connected to a second transmission member. One end of the energy reduction film member is fixed to the second rotating member. The other end of the energy reduction film member is driven by the second rotating member to be wound around a cooling plate, forming a proton penetration section on the cooling plate. The proton penetration section reduces the proton beam from the first energy to the second energy. Preferably, the cooling plate may include a frame, inside which a coolant pipe is provided. One end of the coolant pipe is connected to an input pipe via a rotary input connector, and the other end of the coolant pipe is connected to an output pipe via a rotary output connector. Preferably, the frame may have a through-hole through which the proton beam passes to form a collimated beam. Preferably, the thickness of the frame can be approximately 10mm to 20mm. Preferably, the through opening can be circular, elliptical, square, or rectangular. Preferably, the coolant circulator may include a coolant storage tank and a pressurizing motor. The coolant storage tank stores coolant, which is then sent to the input pipe by the pressurizing motor. The coolant then dissipates heat from the cooling plate through the coolant pipe and returns to the coolant storage tank through the output pipe. Preferably, the energy-reducing thin film component may comprise acrylic, graphite, aluminum, glass, or copper. Preferably, the proton beam energy modulator with cooling device may further include a control element electrically connected to the rotation drive unit, and the control element transmits control signals to control the motor speeds of the first motor and the second motor. Preferably, the proton beam energy modulator with cooling device may further include an auxiliary rod disposed between the cooling device and the energy reduction drive to support the energy reduction film. Preferably, the thickness of the energy-reducing thin film component winding cooling plate can be approximately 0.1 mm to 20 mm. As described above, the proton beam energy adjustment de-energizer with cooling device according to the present invention may have one or more of the following advantages: (1) This proton beam energy adjustment and de-energizer with cooling device can circulate coolant through the cooling device, and the coolant carries away the heat energy generated during proton beam irradiation, preventing the device and materials from deforming or being damaged, and effectively improving the service life of the device. (2) The proton beam energy adjustment and de-energizer with this cooling device can set the coolant channel inside the cooling plate, so that the coolant is cooled through the coolant channel. There is no need to set up a complicated external air-cooling or liquid-cooling device, which reduces the complexity of the device setup, thereby reducing the device setup cost and enhancing the device's competitiveness. (3) This proton beam energy adjustment de-energizer with cooling device can achieve the effect of collimator by setting through the opening, so that the proton beam can be converted into the required irradiation range while de-energizing, increasing the convenience of use. It can also be easily applied to different irradiation ranges by different opening shapes, improving the versatility of operation. 1: Proton beam energy modulator with cooling device 10: Rotary drive unit 12: First motor component 14: Second motor component 20: Base 21,25: Ontology 22, 26: First transmission component 24: Second transmission component 30: Cooling Unit 31,71: Rotary input joint 32,72: First rotating component 33,73: Cooling plate 331,731: Frame 332,732: Through-hole opening 334: Proton Penetration Part 34,74: Frame 35, 75: Rotary output connectors 40, 80: Coolant Circulator 41,81: Input pipes 42,82: Output pipes 50: Energy Reduction Drive Unit 51: Second rotating component 52: Energy-reducing thin-film components 53: Auxiliary rods 60: Control element 61: Electronic devices 70: Cooling device 733: Coolant piping 83: Coolant storage tank 84: Pressure Motor 90: Proton Beam Emitter To make the technical features, content, advantages and effects of the present invention more apparent, the present invention will be described in detail below with reference to the accompanying drawings and in the form of embodiments: Figure 1 is a schematic diagram of a proton beam energy adjustment de-energizer with a cooling device according to an embodiment of the present invention. Figure 2 is a schematic diagram of the control element according to an embodiment of the present invention. Figure 3 is a schematic diagram of a cooling device according to another embodiment of the present invention. Figure 4 is a schematic diagram of the operation of a proton beam energy adjustment de-energizer according to another embodiment of the present invention. To facilitate understanding of the technical features, content, advantages, and effects of this invention, the invention is described in detail below with reference to the accompanying drawings and embodiments. The drawings used are for illustrative purposes only and to assist in the description. They may not represent the actual proportions and precise configurations of the invention after implementation. Therefore, the proportions and configurations of the accompanying drawings should not be used to interpret or limit the scope of the invention in actual implementation. This should be stated in advance. Please refer to Figure 1, which is a schematic diagram of a proton beam energy adjustment and de-energizing device with a cooling device according to an embodiment of the present invention. As shown in the figure, the proton beam energy adjustment and de-energizing device 1 includes a rotation drive unit 10, a base 20, a cooling device unit 30, a coolant circulator 40, and an energy reduction drive unit 50. The rotation drive unit 10 includes a first motor component 12 and a second motor component 14, with the first motor component 12 adjacent to the second motor component 14. In this embodiment, the first motor component 12 and the second motor component 14 can be brushless motors or stepper motors, but this disclosure is not limited thereto. The first motor component 12 and the second motor component 14 each include a drive shaft and a drive unit, with the drive shaft inserted into the drive unit, and the drive unit drives the drive shaft to complete the rotation operation. A base 20 is disposed on the rotation drive unit 10. The base 20 includes a body 21, a first transmission member 22, and a second transmission member 24. The first transmission member 22 and the second transmission member 24 are embedded in the body 21. The first transmission member 22 is connected to the first motor member 12, and the second transmission member 24 is connected to the second motor member 14. The first transmission member 22 and the second transmission member 24 may include bearings connecting to the motor members, such as ball bearings, roller bearings, or powder bearings. This embodiment uses ball bearings as an example, but is not limited thereto. Ball bearings have an inner ring and an outer ring, and a plurality of steel balls are provided between the inner ring and the outer ring for buffering. Because these steel balls significantly reduce the actual area of ​​the inner ring and the outer ring, the power consumption and friction ratio are reduced. The first transmission member 22 and the second transmission member 24 also include a transmission structure connecting the rotating member, such as a gear or belt, so that the transmission member can drive the rotating member to perform rotation. A cooling device section 30 is mounted on a base 20. The cooling device section 30 includes a rotary input connector 31, a first rotating member 32, a cooling plate 33, a frame 34, and a rotary output connector 35. The rotary input connector 31 is located below the main body 21. The first rotating member 32 is connected to a first transmission member 22 and passes through the rotary input connector 31. One end of the cooling plate 33 is connected to the first rotating member 32. The frame 34 extends from one end of the main body 21 to a corresponding position above the first rotating member 32. The frame 34 provides fixed positions for the cooling plate 33 and the rotary output connector 35. The rotary output connector 35 is located above the frame 34, and the other end of the cooling plate 33 passes through the rotary output connector 35. The cooling plate 33 includes a frame 331. Coolant pipes are provided inside the frame 331, allowing coolant to flow within them for heat dissipation and cooling of the frame 331. A through-hole 332 may be provided in the center of the frame 331. In this embodiment, the through-hole 332 is circular, but this disclosure is not limited to this. In other embodiments, the shape of the opening may be elliptical, square, rectangular, or other desired shapes. Because the frame 331 has sufficient thickness to block the proton beam from passing through, its thickness can be adjusted according to the type of proton beam and the material used in the cooling plate 33, for example, approximately 10mm to 20mm. The structure of the frame 331 blocks the proton beam generated by the proton beam emitter 90, allowing the proton beam to pass only through the through-hole 332, and the shape of the through-hole 332 forms a collimated beam. The coolant circulator 40 includes an input pipe 41 and an output pipe 42. The input pipe 41 is connected to a rotary input connector 31, and the output pipe 42 is connected to a rotary output connector 35. One end of the coolant pipe in the cooling plate 33 is connected to the input pipe 41 via the rotary input connector 31, and the other end is connected to the output pipe 42 via the rotary output connector 35. The coolant circulator 40 may include a coolant storage tank and a pressurizing motor. The coolant storage tank stores coolant, which is then delivered to the input pipe 41 by the pressurizing motor. The coolant then dissipates heat from the cooling plate 33 via the coolant pipe and returns to the coolant storage tank via the output pipe 42. When the coolant is delivered to the coolant pipeline through the input pipe 41, it can carry away the heat energy of the cooling plate 33, preventing the cooling plate 33 from deforming or being damaged due to high temperature under proton beam irradiation, thus extending the service life of the device. Since the cooling plate 33 needs to be rotated in conjunction with the energy reduction drive unit 50 to adjust the film thickness, and because a coolant pipeline is installed therein, a rotary input connector 31 and a rotary output connector 35 are provided to prevent leakage during the rotation process. The connector can be provided with a rotating outer ring and a fixed inner ring. The rotating outer ring is fixed to the cooling plate 33 and can rotate with the cooling plate 33, while the fixed inner ring is provided with a coolant flow channel, allowing the coolant to enter the coolant flow channel through the rotary input connector 31 and then flow out through the rotary output connector 35 back to the coolant circulation machine 40. An energy reduction drive unit 50 is disposed on a base 20. The energy reduction drive unit 50 includes a second rotating member 51 and an energy reduction film member 52. The second rotating member 51 is connected to a second transmission member 24. One end of the energy reduction film member 52 is fixed to the second rotating member 51, and the other end of the energy reduction film member 52 is driven by the second rotating member 51 to be wound around a cooling plate 33, forming a proton penetration section on the cooling plate 33. The proton penetration section reduces the proton beam from a first energy to a second energy. The proton beam energy adjustment and energy reduction device 1 with a cooling device may further include an auxiliary rod 53. The auxiliary rod 53 is disposed between the cooling device unit 30 and the energy reduction drive unit 50. The energy reduction film member 52 can be supported by the auxiliary rod 53 to avoid problems of sticking or curling during winding. The energy-reducing thin film 52 may comprise a thin film made of materials such as acrylic, graphite, aluminum, glass, or copper. Different materials can be used to accommodate proton beams of different energy levels. The thickness of the energy-reducing thin film 52 wound on the cooling plate 33 can be adjusted to meet the energy reduction requirements of different proton beams. That is, the desired thickness can be achieved by winding it with different numbers of turns; for example, a thickness of approximately 0.1 mm to 20 mm can be achieved by winding it multiple times on the cooling plate 33. For the operation of the rotation drive unit 10 driving the first motor 12 and the second motor 14 to rotate, please refer to the following embodiment. Please refer to Figure 2, which is a schematic diagram of the control element according to an embodiment of the present invention. As shown in the figure, please also refer to Figure 1; the same symbols refer to the same elements. As shown, the proton beam energy modulator / de-energizer 1 with a cooling device further includes a control element 60, electrically connected to the rotation drive unit 10. The control element 60 transmits control signals to control the motor speeds of the first motor unit 12 and the second motor unit 14. The control element 60 can be a control board or a control chip, mounted on the first motor unit 12 and the second motor unit 14. The control element 60 can receive control commands from the electronic device 61, and then transmit the required rotation speed and revolution count information to control the rotation operation of the first motor unit 12 and the second motor unit 14. The electronic device 61 can be a handheld device, a computer device, or a machine control device, transmitting control commands via wired or wireless communication to operate the rotation drive unit 10, thereby achieving the effect of winding to a predetermined thickness. As shown in Figure 1, the first transmission component 22 is connected to the first motor component 12, and the second transmission component 24 is connected to the second motor component 14. Simultaneously, the first transmission component 22 can be connected to the first rotating component 32 via gear engagement, and the second transmission component 24 can be connected to the second rotating component 51 via gear engagement. When the control element 60 controls the first motor component 12 and the second motor component 14 to rotate, it will drive the first transmission component 22 and the second transmission component 24 to rotate, simultaneously driving the first rotating component 32 and the second rotating component 51 to rotate, causing the energy-reducing thin film component 52 on the second rotating component 51 to be wound onto the cooling plate 33. By setting the number of winding turns, the energy-reducing thin film component 52 on the cooling plate 33 reaches the desired thickness. When the proton beam generated by the proton beam emitter 90 passes through the energy-reducing thin film component 52, its energy will be reduced from the original first energy to the second energy. For example, aluminum is used as the energy-reducing film 52. When the proton beam emitted by the proton beam emitter 90 has an energy of 30 MeV, and the required proton beam energy is 10 MeV, it needs to be reduced by the aluminum film. When the proton beam energy passing through the proton beam penetration part is sensed by a sensor located after the energy reducer, it drops to 10.17 MeV. The thickness of the energy-reducing film 52 is approximately 3.7 mm. In addition, since the cooling plate 33 has sufficient thickness to block the proton beam, the proton beam passes only through the through-hole 332. In addition to reducing the proton beam energy to the predetermined energy level, the through-hole 332 also allows the proton beam to form the required irradiation range. Please refer to Figure 3, which is a schematic diagram of a cooling device according to another embodiment of the present invention. As shown in the figure, the cooling device 70 is disposed on the body 25 of the base. The cooling device 70 includes a rotary input connector 71, a first rotating member 72, a cooling plate 73, a frame 74, and a rotary output connector 75. The rotary input connector 71 is disposed below the body 25. The first rotating member 72 is connected to the first transmission member 26 and passes through the rotary input connector 71. The first transmission member 26 can be connected to a motor member, and the motor member drives the first transmission member 26 to rotate. Since the first rotating member 72 is connected to the first transmission member 26, for example, by gear meshing, it will be driven by the first transmission member 26 to rotate. A cooling plate 73 is provided on the first rotating member 72. The cooling plate 73 includes a frame 731. A through opening 732 can be provided in the center of the frame 731. In this embodiment, the through opening 732 is square, but this disclosure is not limited to this. In other embodiments, the shape of the opening can be elliptical, circular, rectangular, or other required shapes. A coolant pipe 733 is provided inside the frame 731. For example, one or more flow channels are provided inside the square frame to allow the coolant to flow in the coolant pipe 733. When the coolant flows through, it can carry away the heat energy of the frame 731 and dissipate heat to cool the cooling plate 73. Similar to the previous embodiment, since the frame 731 has sufficient thickness to block the proton beam from passing through, the thickness is adjusted according to the type of proton beam and the material selected for the cooling plate 73. For example, the thickness is about 10mm to 20mm. The structure of the frame 731 blocks the proton beam from passing through, so that the proton beam only passes through the through opening 732. The shape of the through opening 732 is used to form a collimated beam within the required irradiation range. The frame 74 extends from one end of the main body 25 to a corresponding position above the first rotating member 72. The frame 74 provides a fixed position for the cooling plate 73 and the rotary output connector 75. The rotary output connector 75 is located above the frame 74, and the other end of the cooling plate 73 passes through the rotary output connector 75. The rotary input connector 71 connects to the input pipe 81, and the rotary output connector 75 connects to the output pipe 82. The cooling device 70 is connected to the coolant circulator 80 through the input pipe 81 and the output pipe 82. The coolant circulator 80 includes a coolant storage tank 83 and a pressurizing motor 84. The coolant storage tank 83 stores coolant, which is sent to the input pipe 81 by the pressurizing motor 84. The coolant then dissipates heat from the cooling plate 73 via the coolant pipe 733, and returns to the coolant storage tank 83 via the output pipe 82. The coolant storage tank 83 can be equipped with a radiator, a heat dissipation plate, or a cooler. After cooling the coolant carrying heat, it re-enters the coolant pipe 733 through the input pipe 81, achieving a circulating heat dissipation effect. In this embodiment, the rotary input connector 71 is located below the main body 25, and the rotary output connector 75 is located above the frame 74. However, this disclosure is not limited to this. In other embodiments, the positions of the coolant input and output can be interchanged. That is, the coolant delivered by the coolant circulator 80 is input from above the frame 74 and output from below the main body 25, returning to the coolant circulator 80 to complete the heat dissipation cycle. Please refer to Figure 4, which is a schematic diagram of the operation of the proton beam energy adjustment and de-energizing device according to an embodiment of the present invention. As shown in the figure, please also refer to Figure 1, where the same symbols refer to the same components. As shown in the figure, the proton beam energy adjustment and de-energizing device 1 with a cooling device includes a rotation drive unit 10, a base 20, a cooling device unit 30, a coolant circulator 40, and an energy reduction drive unit 50. The rotation drive unit 10 includes a first motor component 12 and a second motor component 14. The first motor component 12 and the second motor component 14 can be brushless motors or stepper motors, but this disclosure is not limited to these. A first transmission component 22 on the base 20 is connected to the first motor component 12, and a second transmission component 24 is connected to the second motor component 14. The first transmission component 22 is connected to the first motor component 12, and the second transmission component 24 is connected to the second motor component 14. Simultaneously, the first transmission component 22 can be geared to the first rotating component 32, and the second transmission component 24 can be geared to the second rotating component 51. When the first motor component 12 and the second motor component 14 rotate, they drive the first transmission component 22 and the second transmission component 24 to rotate, simultaneously driving the first rotating component 32 and the second rotating component 51 to rotate, causing the energy-reducing thin film component 52 on the second rotating component 51 to be wound onto the cooling plate 33. In this embodiment, the first transmission member 22 and the second transmission member 24 rotate counterclockwise, causing the first rotating member 32 and the second rotating member 51 to rotate clockwise, allowing the energy-reducing thin film member 52 to be conveyed toward the cooling plate 33 and wound onto the cooling plate 33. The energy-reducing thin film member 52 can be wound with multiple layers to form a predetermined thickness. Since the cooling plate 33 includes a frame 331 with a circular through-hole 332, and the remaining portions are blocked from passing through the proton beam due to the thickness of the frame 331, in this embodiment, the proton penetration portion 334 is within a circular area, allowing the proton beam, reduced in energy by the energy-reducing thin film member 52, to irradiate a predetermined area. In other embodiments, the frame 331 may not have a through-hole 332, but may be a complete plate. The thickness and material of the plate, combined with the energy-reducing thin film member 52, form a proton penetration portion 334 of a predetermined thickness, allowing the proton beam to pass through and reducing its energy to a predetermined level. The frame 331 has internal coolant pipes. Coolant is supplied by the coolant circulator 40, enters the coolant pipes through the input pipe 41 and the rotary input joint 31, and then exits through the rotary output joint 35 to the output pipe 42, returning to the coolant circulator 40. Through the continuous circulation of coolant, the heat generated by the proton beam irradiation cooling plate 33 can be cooled, avoiding the problem of deformation and damage to the plate due to high temperature, and extending the service life of the device. The above description is illustrative only and not restrictive. Any equivalent modifications or alterations made without departing from the spirit and scope of this invention should be included in the appended claims. 1: Proton beam energy modulator with cooling device 10: Rotary drive unit 12: First motor component 14: Second motor component 20: Base 21:Ontology 22: First transmission component 24: Second transmission component 30: Cooling Unit 31: Rotary input connector 32: First rotating component 33: Cooling plate 331: Frame 332: Through-opening 34: Frame 35: Rotary output connector 40: Coolant Circulator 41: Input pipe 42: Output pipe 50: Energy Reduction Drive Unit 51: Second rotating component 52: Energy-reducing thin-film components 53: Auxiliary rods 90: Proton Beam Emitter

Claims

1. A proton beam energy modulator / de-energizer with a cooling device includes: a rotation drive unit comprising a first motor and a second motor, the first motor being adjacent to the second motor; a base disposed on the rotation drive unit, the base comprising a body, a first transmission member, and a second transmission member, the first transmission member and the second transmission member being embedded in the body, the first transmission member being connected to the first motor, and the second transmission member being connected to the second motor; and a cooling device unit disposed on the base, the cooling device unit comprising a rotary input connector, a first rotating member, a cooling plate, a frame, and a rotary output connector, the rotary input connector being disposed on the body, the first rotating member being connected to the first transmission member and passing through the rotary input connector, and one end of the cooling plate being connected to the first transmission member. A rotating component, the frame extending from one end of the main body to a corresponding position above the first rotating component, the rotary output connector being disposed on the frame, and the other end of the cooling plate passing through the rotary output connector; a coolant circulator, comprising an input pipe and an output pipe, the input pipe being connected to the rotary input connector, and the output pipe being connected to the rotary output connector; and an energy reduction drive unit disposed on the base, the energy reduction drive unit comprising a second rotating component and an energy reduction film, the second rotating component being connected to the second transmission component, one end of the energy reduction film being fixed to the second rotating component, and the other end of the energy reduction film being driven by the second rotating component to be wound around the cooling plate, forming a proton penetration portion on the cooling plate, the proton penetration portion reducing a proton beam from a first energy to a second energy. The proton beam energy modulator and de-energizer with cooling device as described in claim 1, wherein the cooling plate includes a frame, a coolant pipe is disposed inside the frame, one end of the coolant pipe is connected to the input pipe through the rotary input joint, and the other end of the coolant pipe is connected to the output pipe through the rotary output joint. The proton beam energy modulator with cooling device as described in claim 2, wherein the frame has a through opening through which the proton beam passes to form a collimated beam. The proton beam energy modulator with cooling device as described in claim 3, wherein the thickness of the frame is approximately 10 mm to 20 mm. The proton beam energy modulator with cooling device as described in claim 3, wherein the through-hole includes a circular, elliptical, square, or rectangular shape. As described in claim 2, the proton beam energy modulator with cooling device includes a coolant storage tank and a pressurizing motor. The coolant storage tank stores coolant, which is sent to the input pipe by the pressurizing motor. The coolant is then used to dissipate heat from the cooling plate through the coolant pipe and returned to the coolant storage tank through the output pipe. The proton beam energy modulator with cooling device as described in claim 1, wherein the de-energy thin film comprises acrylic, graphite, aluminum, glass or copper. The proton beam energy modulator and de-energizer with cooling device as described in claim 1 further includes a control element electrically connected to the rotation drive unit. The control element transmits control signals to control the motor speeds of the first motor and the second motor. The proton beam energy adjustment de-energizer with cooling device as described in claim 1 further includes an auxiliary rod disposed between the cooling device and the de-energizing drive for supporting the de-energizing thin film. The proton beam energy modulator with cooling device as described in claim 1, wherein the thickness of the de-energy thin film wrapped around the cooling plate is approximately 0.1 mm to 20 mm.