CN217445560U - Moving target for neutron production - Google Patents
Moving target for neutron production Download PDFInfo
- Publication number
- CN217445560U CN217445560U CN202121254257.1U CN202121254257U CN217445560U CN 217445560 U CN217445560 U CN 217445560U CN 202121254257 U CN202121254257 U CN 202121254257U CN 217445560 U CN217445560 U CN 217445560U
- Authority
- CN
- China
- Prior art keywords
- target
- target body
- neutron production
- moving
- moving target
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
Landscapes
- Particle Accelerators (AREA)
Abstract
The invention provides a moving target for neutron production, which comprises a vacuum cavity, a moving device and a target body, wherein the moving device and the target body are arranged in the vacuum cavity, the moving device is arranged on the inner wall of the top of the vacuum cavity, the target body is detachably arranged on the moving device through a hook assembly, and the moving device can control the reciprocating motion of the target body. The invention adopts the moving device to control the target body to reciprocate left and right, solves the problem of high local heat caused by the concentrated flow beams of the existing static target, effectively reduces the heat deposition of the target body per unit volume, and also reduces the concentrated peak value of the heat of the target body, thereby reducing the requirement on proton beam current.
Description
Technical Field
The invention relates to the technical field of neutron treatment, in particular to a neutron generation moving target for a BNCT device.
Background
Among cancer treatments and the like, radiation Therapy is highly evaluated, and in particular, Neutron Capture Therapy (BNCT: Neutron Capture Therapy) is attracting attention because of its possibility of having a selective treatment at a cellular level in principle. In BNCT, stable isotope having a high capture cross section with neutron previously enters cancer cells, neutron and nuclear reaction thereof generate heavy ion with short range and high LET (Linear Energy Transfer), killing cancer cells has little influence on normal cells, and B, Gd is currently used as BNCT together with thermal neutron or epithermal neutron for cancer treatment.
In recent years, a neutron generator that generates neutrons by accelerating protons to a predetermined energy with an accelerator and irradiating the protons with a specific target has attracted attention because of its hospital accessibility, and the accelerator-based neutron generator is a future development direction because it is compact in equipment and low in running cost. In general, as a target material of a neutron generator for this purpose, "lithium by Li (p, n) Be reaction" and "beryllium by Be (p, n) reaction" are mainly used, but beryllium itself is toxic, neutron yield is low, higher accelerator energy is required, and lithium has a very high requirement for heat dissipation due to its low melting point and thermal conductivity.
In order to solve the problem of difficulty in rapid heat dissipation of a target material, people think of some solutions in the research and development process, for example, a high-energy-density lithium target disclosed in U.S. Pat. No. US20100067640a1 adopts a conical target body, the design power reaches 50kW, but the conical target body of the patent needs to adopt an annular beam spot, needs to convert a gaussian beam spot into the annular beam spot, has very high requirements on an accelerator, and increases beam current loss; as the target for a neutron generating device and the manufacturing method thereof disclosed in chinese patent CN104429168A, because the planar stationary target body needs to homogenize the proton beam, the requirement of the accelerator for homogenization of the proton beam is increased to a certain extent, and the planar target is limited by the peak of the heat sink; for example, taiwan patent TW201706008A discloses a rotary target which can effectively remove heat, but has a complex structure and a large occupied area.
Therefore, there is a need for a moving target for neutron generation that distributes the heat deposition inside the target, reduces the peak concentration of the heat in the target, and ensures effective improvement of the heat dissipation limitations of planar stationary targets.
Disclosure of Invention
The invention aims to provide a moving target for neutron generation, and aims to solve the problems that beryllium in the prior art is toxic and brittle, the machining performance is poor, the use of a neutron generation target taking beryllium as a target material has limitation, the neutron yield is lower than that of lithium, the energy and power of an accelerator required for treatment are high, and the cost of the device is high; the problems that the highest heat flux density can be reduced only by homogenizing a proton beam and heat is concentrated and difficult to dissipate in the plane static target in the prior art are solved; the problems that the heat flux density on a unit area is reduced by a conical or wedge-shaped target body in the prior art, but the requirement on an accelerator is very high, and the beam loss is increased are solved; in addition, the problems that the structure of the rotary target in the prior art is complex, the size of equipment is large, the coupling with a moderator is not facilitated, the neutron utilization efficiency is not high, the installation and operation difficulty is high, and the stability is not high are solved.
In order to achieve the above object, the present invention provides a moving target for neutron production, which includes a vacuum chamber, and a moving device and a target body installed in the vacuum chamber, wherein the moving device is installed on an inner wall of a top portion of the vacuum chamber, the target body is detachably installed on the moving device through a hook assembly, the moving device can control a reciprocating motion of the target body, and the moving device and the target body are vertically arranged.
Further preferably, the moving device comprises a linear guide rail screw device and a stepping motor, the linear guide rail screw device and the stepping motor are both arranged above the target body, the linear guide rail screw device is installed on the inner wall of the top of the vacuum cavity, one end of the linear guide rail screw device is connected with the stepping motor, the stepping motor drives the screw to rotate positively and reversely to drive the target body to reciprocate leftwards and rightwards, deposition of dispersed target body heat is achieved, and the moving device is suitable for various proton beams.
Further preferred, the couple subassembly includes mount table and couple, and wherein, the couple is equipped with the rectangle arch, the mount table be equipped with the protruding mounting groove of looks adaptation of rectangle, can share the stress that produces the couple when the target body removes like this, and the below of linear guide lead screw device is located to the mount table, the top of target body is located to the couple, the target body through the detachable installation in linear guide lead screw device's mount table of couple, easily dismantle and change the target body under vacuum condition.
Further preferably, the target body comprises a metal substrate and a target body shell, the hook is arranged above the target body shell, the target body shell is detachably arranged on a mounting table of the linear guide rail screw device through the hook, and the target body can be directly replaced through the operation of the hook.
Preferably, the front surface of the metal substrate is provided with a target filling groove, the front surface is a surface facing the proton beam, the back surface is a surface facing away from the proton beam, the target filling groove is used for filling the target and the sealing metal film, the length and width of the target and the sealing metal film are 120mm x 60mm x 1mm, and a serial water-cooling heat exchange channel is formed in a gap between the back surface of the metal substrate and the front surface of the target shell and used for cooling heat deposited by the target.
Further preferably, the back of the metal substrate is provided with a plurality of guide plates, the height of each guide plate is 5mm, the front of the target body shell is provided with a gap groove matched with the height of each guide plate, and the guide plates and the gap grooves form a serial water-cooling heat exchange channel, so that the flow stability is improved.
Preferably, the back of the target body shell is provided with a working medium inlet and a working medium outlet for conveying cooling working media, the working medium inlet and the working medium outlet are both connected with corrugated pipes, the target body is easy to move, and the working medium inlet and the working medium outlet are communicated with the serial water-cooling heat exchange channel.
Preferably, the working medium inlet is provided with a first pit with a fluid inlet section, so that the problem of uneven local flow caused by jet impact of fluid on the metal substrate is avoided, the working medium outlet is provided with a second pit with a fluid collecting section, so that the backflow phenomenon at the outlet is prevented, the stability of a flow field is ensured, the first pit and the second pit are communicated with the serial water-cooling heat exchange channel, and compared with a parallel flow channel, the phenomenon of uneven flow field cannot occur, so that the cooling reliability is improved.
Further preferably, the target is sealed in the target filling groove.
Further preferably, the target is sealed in the target filling groove by hot isostatic pressing bonding through the sealing metal film.
Further preferably, the metal substrate and the target body shell are assembled and connected through bolts penetrating through the mounting holes, the target body shell is 304 stainless steel or nuclear stainless steel, and a rubber gasket is arranged between the target body shell and the metal substrate.
The invention provides a moving target for neutron generation, which is mainly used for a neutron generation moving target of a BNCT device and has the advantages that:
1. by adopting the moving device to control the target body to reciprocate left and right, the problem of high local heat caused by the concentrated flow beam of the existing static target is solved, the heat deposition of the target body per unit volume is effectively reduced, and the concentrated peak value of the heat of the target body is also reduced, so the requirement on proton beam current is reduced;
2. the moving device is adopted to control the target body to reciprocate left and right, so that the heat exchange area of the target body is increased, the heat dissipation limitation of the target body is effectively improved, the heat exchange is enhanced, the melting danger of the target body is reduced, and the running stability of equipment is improved;
3. the target body is directly connected with the moving device through the hook assembly, so that the target body is simple to mount and easy to dismount, and the cost for replacing the target body is reduced;
4. the device can adapt to different proton beam spots, and has less beam loss and low requirement on an accelerator;
5. by adopting the single-phase water-cooling serial flow channel, the flow is uniform, the heat exchange stability is high, and the reliability is strong.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
It should be noted that the front surface is a surface facing the proton beam, and the back surface is a surface facing away from the proton beam;
FIG. 1 is a schematic front perspective view of the present invention;
fig. 2 is a schematic front perspective structure of the present invention, and those skilled in the art can easily understand that: the mobile device is arranged on the inner wall of the top of the vacuum cavity;
FIG. 3 is a schematic view of the front connection structure of the moving device, the hook assembly and the target body of the present invention;
FIG. 4 is a schematic view of the back side connection of the target, hook assembly and mobile device of the present invention;
FIG. 5 is a schematic front exploded view of the hook assembly and target of the present invention;
fig. 6 is a schematic structural diagram of the mounting table of the present invention.
Wherein, in the figures, the respective reference numerals:
1. moving the target; 2. a vacuum chamber;
3. a mobile device; 31. a linear guide screw device; 32. a stepping motor;
4. a target body; 41. a metal substrate; 411. filling the groove with the target material; 412. mounting holes; 42. a target housing; 421. a working medium inlet; 422. a working medium outlet; 423. a first pit; 424. a second pit;
5. a hook assembly; 51. an installation table; 511. mounting grooves; 52. hooking; 521. a rectangular protrusion;
6. a serial water-cooled heat exchange channel; 61. a baffle; 62. a void recess.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the embodiments of the present invention, and should not be construed as limiting the invention.
In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixed or detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
In one embodiment of the present invention, as shown in fig. 1 to 3, there is provided a moving target 1 for neutron production, including a vacuum chamber 2, and a moving device 3 and a target 4 installed in the vacuum chamber 2, the moving device 3 being installed on the top inner wall of the vacuum chamber 2, the target 4 being detachably installed on the moving device 3 through a hook assembly 5, the moving device 3 being capable of controlling the reciprocating motion of the target 4, the moving device 3 and the target 4 being vertically arranged.
Further refer to fig. 3 to 4, mobile device 3 includes linear guide lead screw device 31 and step motor 32, 4 tops on the target body are all located to this linear guide lead screw device 31 and step motor 32, linear guide lead screw device 31 installs on the top inner wall of vacuum cavity 2, linear guide lead screw device 31 one end is connected with step motor 32, corotation and the reversal of step motor 32 drive linear guide lead screw drive target body 4 left and right sides reciprocating motion, realize the thermal deposit of dispersion target body 4, be fit for multiple proton beam.
The hook assembly 5 comprises an installation platform 51 and a hook 52, the installation platform 51 is arranged below the linear guide rail screw device 31, the hook 52 is arranged above the target body 4, and the target body 4 is detachably arranged on the installation platform 51 of the linear guide rail screw device 31 through the hook 52, so that the target body 4 is easy to detach and replace under a vacuum condition;
the target 4 comprises a metal substrate 41 and a target housing 42, a hook 52 is arranged above the target housing 42, the target housing 42 is detachably mounted on a mounting table 51 of the linear guide rail screw device 31 through the hook 52, and the target 4 can be directly replaced by operating the hook 52.
Wherein the hook 52 shown in fig. 5 is provided with a rectangular protrusion 521, and the mounting table 51 shown in fig. 6 is provided with a mounting groove 511 adapted to the rectangular protrusion 521, so that the stress generated to the hook 52 when the target body 4 moves can be shared.
With further reference to fig. 5, it should be noted that the front surface is a surface facing the proton beam, and the back surface is a surface facing away from the proton beam.
It will be readily understood by those skilled in the art that the front surface of the metal substrate 41 is provided with target filling grooves 411, the target filling grooves 411 are used for filling the target and sealing the metal film, the length and width thereof are 120mm by 60mm by 1mm, and the gap between the back surface of the metal substrate 41 and the front surface of the target housing 42 forms a serial water-cooling heat exchange channel 6 for cooling the heat deposited by the target.
Similarly, the back of the metal substrate 41 is provided with a plurality of guide plates 61, the height of the guide plates 61 is 5mm, the front of the target shell 42 is provided with gap grooves 62 matched with the height of the guide plates 61, and the guide plates 61 and the gap grooves 62 form a serial water-cooling heat exchange channel 6, so that the flow stability is improved.
Then, working medium inlets 421 and working medium outlets 422 for conveying cooling working media are respectively arranged on two sides of the lower portion of the back of the target body shell 42, the working medium inlets 421 and the working medium outlets 422 are both connected with corrugated pipes, the target body 4 is easy to move, and the working medium inlets 421 and the working medium outlets 422 are communicated with the serial water-cooling heat exchange channels 6.
Then, working medium inlet 421 is equipped with first pit 423 that has the fluid inlet section, has avoided the uneven problem of local flow that the efflux impact of fluid to the metal substrate leads to, working medium outlet 422 is equipped with second pit 424 that has the fluid collection section, first pit 423 and second pit 424 are with serial water-cooling heat transfer passageway intercommunication, prevent the backward flow phenomenon in the exit, guarantee the flow field is stable, this kind of phase ratio parallel flow channel can not take place the inhomogeneous phenomenon of flow field, has improved the reliability of cooling.
In addition, the target is sealed in the target filling groove 411.
Further, the target is sealed in the target filling groove 411 by hot isostatic pressing bonding through the sealing metal film.
Finally, the metal substrate 41 and the target shell 42 are assembled and connected through the mounting hole 412 by bolts, the target shell 42 is 304 stainless steel or nuclear stainless steel, and a rubber gasket is arranged between the target shell 42 and the metal substrate 41.
The second embodiment of the present invention is different from the first embodiment in that the gap groove in the serial water-cooling heat exchange channel is not limited to be disposed on the front surface of the target body housing, but may be disposed on the back surface of the metal substrate, and only a gap groove adapted to the height of the flow guide plate needs to be disposed on the back surface of the metal substrate, and the wall thickness designed between the gap groove and the target filling groove is the same as the wall thickness between the target filling groove and the gap groove in the first embodiment, which can also ensure the serial water-cooling heat exchange channel with flow stability and cooling reliability.
The third embodiment of the present invention is different from the first and second embodiments in that the connection manner of the moving device and the linear guide screw device is not limited to the detachable connection between the mounting table and the hook, but may be other connection structures that can be detached from each other, for example, a snap connection structure or a pin hole assembly connection, or a mounting hole assembly connection, etc.
The working principle is as follows:
the BNCT device is operated, the stepping motor 32 is started, because the target body 4 is detachably arranged on the moving device 3 through the hook component 5, the stepping motor 32 drives the screw rod to rotate forwards and backwards to drive the target body 4 to reciprocate left and right, then, the fluid flows into the first pit 423 from the working medium inlet 421, finally flows into the second pit 424 through the serial water-cooling heat exchange channel 6 to be collected and flows out through the working medium outlet 422, the local flow uniformity of the jet impact of the fluid on the metal substrate 41 is improved, the flow field stability and the cooling reliability are ensured, moreover, the working medium inlet 421 and the working medium outlet 422 are connected with the corrugated pipe, the movement of the target body 4 is easier, when the target body 4 needs to be replaced, the BNCT device and the stepping motor 32 are closed, only the hook 52 on the target body 4 needs to be taken down from the mounting platform 51, the whole target body 4 can be detached under the vacuum condition, then, after taking the target body 4 out of the vacuum cavity 2, the corrugated pipes of the working medium inlet 421 and the working medium outlet 422 are taken down to prevent residual fluid from dropping into the vacuum cavity 2, then the corrugated pipes of the working medium inlet 421 and the working medium outlet 422 are connected to a new target body 4, and the new target body 4 is installed on the installation platform 51 through the hook 52, so that the disassembly and the installation under the vacuum condition are realized, the operation is repeated immediately, the operation is very convenient, the labor intensity is reduced, and the labor hour is reduced.
The invention provides a moving target for neutron generation, which is mainly used for a neutron generation moving target of a BNCT device and has the advantages that:
1. the moving device is adopted to control the target body to reciprocate left and right, so that the problem of high local heat caused by concentrated flow beams of the conventional static target is solved, the heat deposition of the target body per unit volume is effectively reduced, and the concentrated peak value of the heat of the target body is also reduced, so that the requirement on proton beam current is reduced;
2. the moving device is adopted to control the target body to reciprocate left and right, so that the heat exchange area of the target body is increased, the heat dissipation limitation of the target body is effectively improved, the heat exchange is enhanced, the melting danger of the target body is reduced, and the running stability of equipment is improved;
3. the target body is directly connected with the moving device through the hook assembly, so that the target body is simple to mount and easy to dismount, and the cost for replacing the target body is reduced;
4. the device can adapt to different proton beam spots, and has less beam loss and low requirement on an accelerator;
5. by adopting the single-phase water-cooling serial flow channel, the flow is uniform, the heat exchange stability is high, and the reliability is strong.
The rest of this embodiment is the same as the first embodiment, and the features that are not explained in this embodiment are all explained as the first embodiment, which is not described herein again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (14)
1. A moving target for neutron production, characterized by: the movable target comprises a vacuum cavity, a movable device and a target body, wherein the movable device and the target body are installed in the vacuum cavity, the movable device is installed on the inner wall of the top of the vacuum cavity, the target body is detachably installed on the movable device through a hook assembly, and the movable device can control the reciprocating motion of the target body.
2. The moving target for neutron production of claim 1, wherein: the moving device comprises a linear guide rail screw device and a stepping motor, the linear guide rail screw device is installed on the inner wall of the top of the vacuum cavity, one end of the linear guide rail screw device is connected with the stepping motor, and the stepping motor drives the screw to rotate forwards and backwards to drive the target body to reciprocate left and right.
3. The moving target for neutron production of claim 2, wherein: the hook assembly comprises an installation table and a hook, the installation table is arranged below the linear guide rail screw rod device, the hook is arranged above the target body, and the target body is detachably arranged on the installation table of the linear guide rail screw rod device through the hook.
4. The moving target for neutron production of claim 3, wherein: the target body comprises a metal substrate and a target body shell, and the target material is arranged on the front surface of the metal substrate; the couple is located the top of target body shell, the target body shell is through the detachable installation in linear guide lead screw device's mount table of couple.
5. The moving target for neutron production of claim 4, wherein: the front surface of the metal substrate is provided with a target filling groove for filling a target, and a serial water-cooling heat exchange channel is formed in a gap between the back surface of the metal substrate and the front surface of the target shell.
6. The moving target for neutron production of claim 5, wherein: the back of the metal substrate is provided with a plurality of guide plates, the front of the target body shell is provided with gap grooves matched with the height of the guide plates, and the guide plates and the gap grooves form the serial water-cooling heat exchange channel.
7. The moving target for neutron production of claim 6, wherein: the back of the target body shell is provided with a working medium inlet and a working medium outlet which are used for conveying cooling working media, and the working medium inlet and the working medium outlet are communicated with the serial water-cooling heat exchange channel.
8. The moving target for neutron production of claim 7, wherein: the working medium inlet is provided with a first pit with a fluid inlet section, the working medium outlet is provided with a second pit with a fluid collecting section, and the first pit and the second pit are communicated with the serial water-cooling heat exchange channel.
9. The moving target for neutron production of any of claims 4 to 8, wherein: the target is sealed in the target filling groove.
10. The moving target for neutron production of claim 9, wherein: the target is sealed in the target filling groove through the sealing metal film by adopting hot isostatic pressing bonding.
11. The moving target for neutron production of any of claims 4 to 6, wherein: the metal substrate and the target body shell are assembled and connected through a bolt penetrating through the mounting hole.
12. The moving target for neutron production of any one of claims 4 to 8, 10, wherein: and a rubber gasket is arranged between the target body shell and the metal substrate.
13. The moving target for neutron production of any of claims 3 to 8, wherein: the couple is equipped with the rectangle arch, and the mount table is equipped with the mounting groove with the protruding looks adaptation of rectangle.
14. The moving target for neutron production of claim 12, wherein: the target body shell is 304 stainless steel or nuclear stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121254257.1U CN217445560U (en) | 2021-06-07 | 2021-06-07 | Moving target for neutron production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121254257.1U CN217445560U (en) | 2021-06-07 | 2021-06-07 | Moving target for neutron production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217445560U true CN217445560U (en) | 2022-09-16 |
Family
ID=83209267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121254257.1U Active CN217445560U (en) | 2021-06-07 | 2021-06-07 | Moving target for neutron production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217445560U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113316304A (en) * | 2021-06-07 | 2021-08-27 | 散裂中子源科学中心 | Moving target for neutron production |
-
2021
- 2021-06-07 CN CN202121254257.1U patent/CN217445560U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113316304A (en) * | 2021-06-07 | 2021-08-27 | 散裂中子源科学中心 | Moving target for neutron production |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN217445560U (en) | Moving target for neutron production | |
| CN113316304A (en) | Moving target for neutron production | |
| CN115499993B (en) | Neutron target system | |
| CN110926244A (en) | Magnetic fluid heat exchange device | |
| WO2023050976A1 (en) | Swing-type high-power x-ray conversion target device | |
| JP2000180600A (en) | Solid target and neutron generator | |
| CN219574719U (en) | Computer water-cooling host machine case | |
| CN218482994U (en) | Target material for particle beam generating device and substrate thereof | |
| CN216120202U (en) | Swing type high-power X-ray conversion target device | |
| CN212573070U (en) | Embedded vacuum scanning box titanium film cooling device | |
| CN212460502U (en) | Circulating two-phase flow computer radiator | |
| CN112652835B (en) | Battery module temperature control box | |
| CN100454630C (en) | Low-pressure air breathing fuel cell pile | |
| CN210868596U (en) | Heat dissipation device for power cabinet | |
| CN211125547U (en) | Box water cooling plant for circuit breaker | |
| CN117956674B (en) | Magnet system and cyclotron with same | |
| CN218867169U (en) | Full vanadium redox flow battery bipolar plate | |
| CN114784319B (en) | Matrix type air-cooled electric pile box | |
| CN116705375B (en) | Isotope production solid-liquid coupling target device based on accelerator | |
| CN219574767U (en) | Processor heat abstractor | |
| CN220528467U (en) | Converter, electrical equipment and energy storage system | |
| CN220755123U (en) | Injection and extraction two-in-one convex rail magnet of medical synchrotron | |
| CN220232399U (en) | Energy-saving heat dissipation type cloud computing server | |
| CN107403649B (en) | Liquid target is liquid windowless spallation structure of coolant | |
| CN109548349B (en) | High repetition frequency solid-state pulse power source integrated prototype device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |