CN215222568U - Quick-release solid target structure - Google Patents
Quick-release solid target structure Download PDFInfo
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- CN215222568U CN215222568U CN202121017231.5U CN202121017231U CN215222568U CN 215222568 U CN215222568 U CN 215222568U CN 202121017231 U CN202121017231 U CN 202121017231U CN 215222568 U CN215222568 U CN 215222568U
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- cooling
- helium
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- target
- vacuum
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- 239000007787 solid Substances 0.000 title claims abstract description 19
- 238000001816 cooling Methods 0.000 claims abstract description 63
- 239000001307 helium Substances 0.000 claims abstract description 33
- 229910052734 helium Inorganic materials 0.000 claims abstract description 33
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000000110 cooling liquid Substances 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 14
- 230000000694 effects Effects 0.000 abstract description 4
- 230000003760 hair shine Effects 0.000 abstract 1
- 238000010030 laminating Methods 0.000 abstract 1
- 239000000178 monomer Substances 0.000 abstract 1
- 239000013077 target material Substances 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010066054 Dysmorphism Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 210000002216 heart Anatomy 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005025 nuclear technology Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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Abstract
The utility model discloses a quick detach solid target structure, include: the cooling back plate, cooling channel has been seted up to cooling back plate's inside, and cooling channel's rear surface laminating and connect the front surface at the rear end target container of cooling back plate, release screw and vacuum clamp constitute quick detach structure, and the front end of release screw is outstanding in cooling back plate to release screw's monomer rear end meets with the target container, helium cooling chamber, and the rear side in helium cooling chamber is connected with the vacuum seal window through fixed mode. This quick detach solid target structure can be with the quick dismantlement of fixed target, reduces and demolishs the time that target in-process operating personnel received the irradiation, reduces and shines the dose, and cooling channel covers whole target container back wall, and cooling area is big, and the helium that circulates simultaneously cools off target surface and vacuum window in the helium cooling chamber, and the cooling effect is better.
Description
Technical Field
The utility model relates to a nuclear technology application technical field specifically is a quick detach solid target structure.
Background
Radioisotopes produced by small medical cyclotrons, such as 15O, 11C, 68Ga, 89Zr, and the like, are suitable as positron emitting isotopes for medical use. Among these, Ga-68 has two desirable properties for medical use: short half-life and high positron emission branch ratio. The Ga-68 tracer may be used for brain, heart, bone, lung or tumor imaging. The Ga-68 used at present is mostly obtained by leaching with a 68Ge/68Ga generator, and the activity of Ga-68 is reduced with time due to the decay of the parent nuclear species. The production of Ga-68 by a cyclotron can provide a large amount of Ga-68 for clinical applications and medical research and development like surrounding cities. The above-mentioned nuclides produced by a nuclear reaction that produces a target. The solid target is a mechanism for completing nuclear reaction and generating radioactive nuclide, beam current enters a corresponding target material cavity from an outlet of the cyclotron, and a target atomic nucleus is bombarded by using a corresponding nuclear reaction spectrum to obtain a specific positive electronic nuclide.
Chinese patent No. CN20809316U, publication date 20181113, discloses a solid target transmission device, the structure of which comprises a base, a support plate, a slide block, a stud, a fixer, a lead pipe, a funnel, a sealing cover, a hollow metal plate, a metal push rod core and a memory, wherein the support plate is arranged on the surface of the base, the stud is arranged on the surface of the support plate, the slide block is arranged on the surface of the stud, the slide block is connected with the support plate in a sliding way through the stud, the fixer is fixedly arranged on the side surface of the slide block, the lead pipe is arranged in the fixer, the solid target transmission device can be matched with the fixer and the lead pipe by arranging the stud with the slide block, the height and the angle of the solid target in the funnel can be conveniently transmitted, the controllability is increased, the danger of large-dose irradiation can be reduced by arranging the sealing cover below the lead pipe, the sealing thread block arranged on the surface of the storage is matched, so that the rotary sealing with the external cover body is convenient, the transfer is convenient, the structure is simple, and the realization is easy.
The prior art scheme has the following defects that the irradiated solid target material target piece and the like have radioactivity, so that an operator can be irradiated at a short distance in the process of disassembling and conveying and the physical health of the operator is damaged, and therefore the quick-disassembling solid target structure is provided so as to solve the problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a quick detach solid target structure to solve the quick detach solid target structure commonly used at present that above-mentioned background art provided when using, because solid target after the illumination etc. has radioactivity, operating personnel can closely receive the irradiation at the in-process of dismantling the transmission, causes the problem of harm to operating personnel's healthy.
In order to achieve the above object, the utility model provides a following technical scheme: a fast-release solid target structure comprising:
a cooling back plate, wherein a cooling channel is arranged inside the cooling back plate, the rear surface of the cooling channel is attached to the front surface of the rear end target container connected to the cooling back plate,
wherein the outer surface of the cooling back plate is connected to the inner surface of the vacuum clamp;
the push-out screw and the vacuum clamp form a quick-release structure, the front end of the push-out screw protrudes out of the cooling back plate, and the rear end of a single body of the push-out screw is connected with the target container;
the rear side of the helium cooling cavity is connected with a vacuum sealing window in a fixed mode, and a collimator connecting piece connected with the rear end of the target container is installed on the rear surface of the vacuum sealing window.
The left side and the right side of the front surface of the cooling back plate are respectively provided with a cooling liquid inlet and a cooling liquid outlet, the cooling liquid inlet and the cooling liquid outlet are symmetrically arranged on the front surface of the cooling back plate, the diameters of the cooling liquid inlet and the cooling liquid outlet are the same,
wherein the inside of cooling backplate is connected with the ejecting screw through the mode of rotating, and the front surface of cooling backplate salient the front surface of vacuum clamp.
Preferably, a helium inlet for injecting helium is formed in the right surface of the target container, a first circulation guide channel and a second circulation guide channel for guiding the helium are respectively connected to the front side and the rear side of the left end of the helium inlet,
wherein the length of first circulation conducting channel and second circulation conducting channel equals, and first circulation conducting channel and second circulation conducting channel all set up inside the helium cooling chamber.
Preferably, the cooling back plate and the helium cooling cavity are tightly connected with the inside of the vacuum clamp, and the inside of the vacuum clamp is tightly and fixedly connected with the outer surface of the target container.
Preferably, the surface of the collimator connecting piece is provided with a threaded hole, and the collimator connecting piece is fixed on the collimator through a screw.
Compared with the prior art, the beneficial effects of the utility model are that: the quick-release solid target structure can quickly detach a fixed target, reduce the irradiation time of an operator in the target piece detaching process, reduce the irradiation dose, cover the rear wall of the whole target container by the cooling channel, have large cooling area, simultaneously cool the surface of the target material and the vacuum window by helium circulating in the helium cooling cavity, and have better cooling effect;
1. when the device is used, due to the design of the vacuum clamp and the push-out screw, the push-out screw is rotated, so that the target material and the target container can fall into a shield container designed in advance, the contact time of the target container and workers is shorter, and the injury of radiation to a human body is reduced;
2. in the use process, the contact area between the front surface of the target container and the cooling channel is larger, and the solution can be cooled in a large area, so that the cooling speed of the solution can be higher, and the cooling time of the solution is saved;
3. meanwhile, the solid target adopts a single-layer film structure, and helium circulating in the helium cooling cavity simultaneously cools the surface of the target and the vacuum sealing window, so that the target is cooled by low-temperature cooling fluid on the front side on one hand, and cooled by helium flowing through the surface on the other hand, and the cooling effect is better.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the overlooking and cutting structure of the present invention;
FIG. 3 is a schematic top view of the present invention;
fig. 4 is a schematic side view of the present invention.
In the figure: 1. cooling the back plate; 2. a cooling channel; 3. a coolant inlet; 4. an outlet; 5. pushing out the screw; 6. a target container; 7. a helium cooling chamber; 8. a helium gas inlet; 9. a first flow channel; 10. a second flow channel; 11. sealing the window in vacuum; 12. a collimator attachment; 13. and (6) carrying out vacuum clamping.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the utility model provides a technical solution: a fast-release solid target structure comprising: the device comprises a cooling back plate 1, a target container 6, a helium cooling cavity 7 and a collimator connector 12, wherein a target Zn-68 is loaded into the target container 6 through electroplating, and a beam current bombards the Zn-68 through the collimator connector 12 and a vacuum sealing window 11. The thickness of Zn-68 is larger than the range of proton beam, so as to make as few protons bombard the back plate of the target container 6 as possible, reduce the activation of the target container 6, and the whole target body only needs a layer of vacuum-sealed film. The vacuum window is arranged at one end close to the collimator, a vacuum hoop 13 is used in target assembly, a target container 6 loaded with a target is tightly fixed between a helium cooling cavity 7 and a cooling back plate 1, two customized push-out screws 5 are installed on the cooling back plate 1, one end of each customized push-out screw is connected with the target container 6, cooling liquid is injected into the cooling channel 2 from a cooling liquid inlet 3, the front surface of the target container 6 is attached by the cooling liquid, the target is cooled, helium is injected from a helium inlet 8, the helium enters a first circulation guide channel 9 to cool the target, the vacuum sealing window 11 is cooled by the helium through a second circulation guide channel 10, the vacuum sealing window 11 is fixed between a collimator connecting piece 12 and the helium cooling cavity 7, and the target and the vacuum sealing window 11 are rapidly cooled due to the action of the cooling liquid and the helium, so that the cooling time is reduced, can pour out the coolant liquid of cooling channel 2's inside through export 4 when the coolant liquid needs to be changed, convenient to use, vacuum clamp 13 can adopt KF 40.
After the target is finished, the target container 6 is quickly separated from the vacuum clamp 13 by rotating the push-out screw 5, and the target container 6 is made of copper or other metals which are difficult to dissolve in acid. The size of the groove is larger than that of the target material, and a groove is designed in the center of the target container 6. By electroplating, the target material, e.g. zinc, is tightly loaded into the target container 6, but also involves preparing the target material by other means, e.g. hydraulic pressure, then loading into the target container 6, irradiating the assembled target assembly for a calculated time, after irradiation, disassembling the target body spare parts, and dropping the irradiated target material together with the target container 6 into a shielding container prepared in advance. The dissolution was carried out in a shielded vessel. After dissolution, the target solution is transported in liquid form through the radiation-resistant conduit. The separation and purification are carried out in a separation and purification center designed in advance.
Those not described in detail in this specification are within the skill of the art. The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (5)
1. A quick-release solid target structure is characterized in that: the method comprises the following steps:
a cooling back plate, wherein a cooling channel is arranged inside the cooling back plate, the rear surface of the cooling channel is attached to the front surface of the rear end target container connected to the cooling back plate,
wherein the outer surface of the cooling back plate is connected to the inner surface of the vacuum clamp;
the push-out screw and the vacuum clamp form a quick-release structure, the front end of the push-out screw protrudes out of the cooling back plate, and the rear end of a single body of the push-out screw is connected with the target container;
the rear side of the helium cooling cavity is connected with a vacuum sealing window in a fixed mode, and a collimator connecting piece connected with the rear end of the target container is installed on the rear surface of the vacuum sealing window.
2. The structure of claim 1, wherein: the left side and the right side of the front surface of the cooling back plate are respectively provided with a cooling liquid inlet and a cooling liquid outlet, the cooling liquid inlet and the cooling liquid outlet are symmetrically arranged on the front surface of the cooling back plate, the diameters of the cooling liquid inlet and the cooling liquid outlet are the same,
wherein the inside of cooling backplate is connected with the ejecting screw through the mode of rotating, and the front surface of cooling backplate salient the front surface of vacuum clamp.
3. The structure of claim 1, wherein: a helium inlet for injecting helium is formed in the right surface of the target container, a first circulation guide channel and a second circulation guide channel for guiding the helium are respectively connected to the front side and the rear side of the left end of the helium inlet,
wherein the length of first circulation conducting channel and second circulation conducting channel equals, and first circulation conducting channel and second circulation conducting channel all set up inside the helium cooling chamber.
4. The structure of claim 2, wherein: the cooling back plate and the helium cooling cavity are tightly connected with the inside of the vacuum hoop, and the inside of the vacuum hoop is tightly and fixedly connected with the outer surface of the target container.
5. The structure of claim 1, wherein: the surface of the collimator connecting piece is provided with a threaded hole, and the collimator connecting piece is fixed on the collimator through a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121017231.5U CN215222568U (en) | 2021-05-13 | 2021-05-13 | Quick-release solid target structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121017231.5U CN215222568U (en) | 2021-05-13 | 2021-05-13 | Quick-release solid target structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215222568U true CN215222568U (en) | 2021-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121017231.5U Active CN215222568U (en) | 2021-05-13 | 2021-05-13 | Quick-release solid target structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215222568U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116525149A (en) * | 2022-12-27 | 2023-08-01 | 上海交通大学 | An aluminum sleeve for double-cone collision ignition low-temperature freezing target and its preparation method |
| CN116997069A (en) * | 2023-08-09 | 2023-11-03 | 北京核力同创科技有限公司 | Full-automatic solid target device |
-
2021
- 2021-05-13 CN CN202121017231.5U patent/CN215222568U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116525149A (en) * | 2022-12-27 | 2023-08-01 | 上海交通大学 | An aluminum sleeve for double-cone collision ignition low-temperature freezing target and its preparation method |
| CN116997069A (en) * | 2023-08-09 | 2023-11-03 | 北京核力同创科技有限公司 | Full-automatic solid target device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Hong Inventor after: Du Yang Inventor after: Zhang Cong Inventor before: Shi Jinshui Inventor before: Li Hong Inventor before: Du Yang Inventor before: Zhang Cong |