CN108550411B - Mosaic target structure - Google Patents
Mosaic target structure Download PDFInfo
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- CN108550411B CN108550411B CN201810532571.8A CN201810532571A CN108550411B CN 108550411 B CN108550411 B CN 108550411B CN 201810532571 A CN201810532571 A CN 201810532571A CN 108550411 B CN108550411 B CN 108550411B
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- target
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21G—CONVERSION OF CHEMICAL ELEMENTS; RADIOACTIVE SOURCES
- G21G4/00—Radioactive sources
- G21G4/04—Radioactive sources other than neutron sources
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
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Abstract
The invention relates to an embedded target structure, which comprises a target flange, wherein a through hole is formed in the center of the target flange, a beryllium target is arranged in the through hole, the left end face of the beryllium target is coplanar with the left end face of the target flange, a slowing material part A is connected to the right end face of the beryllium target in the through hole, a slowing material part B is connected to the right end face of the slowing material part A, the right end face of the slowing material part B is coplanar with the right end face of the target flange, a ring target cooling loop is arranged in the position, close to the through hole, of the target flange, the ring target cooling loop is arranged around the through hole, a notch is formed in the ring target cooling loop, two ends of the ring target cooling loop are respectively connected with a water inlet pipe and a water return pipe, and a slowing material part C is connected to the right end faces of the target flange and the slowing material part B; in general, the invention has the advantages of compact structure, safe use and capability of realizing the stable and rapid replacement of the target.
Description
Technical Field
The invention belongs to the field of physics, and particularly relates to a mosaic target structure.
Background
Along with the progress of scientific technology, neutrons have an increasing role in scientific research and living applications, such as being used for nondestructive internal inspection, customs for detecting objects in containers, detecting whether other objects are hidden in automobiles, and judging bridge quality by detecting the internal conditions of bridges; it is therefore an object of the present invention to provide a compact, safe-to-use mosaic target structure that allows for stable and rapid replacement of the target by way of the design of the mosaic of the core components of the target to the target flange.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an embedded target structure which is small in structure, safe to use and capable of realizing stable and rapid replacement of a target.
The purpose of the invention is realized in the following way: the utility model provides an embedded target structure, it includes the target flange, the center of target flange be provided with the through-hole, the through-hole in be provided with the beryllium target, the left end face of beryllium target and the left end face of target flange coplane, the right-hand member face of beryllium target on be connected with the slowing material part A in the through-hole, the right-hand member face of slowing material part A on be connected with the slowing material part B, the right-hand member face of slowing material part B and the right-hand member face coplane of target flange, the position department that is close to the through-hole inside of target flange be provided with the ring target cooling circuit, the ring target cooling circuit encircle the through-hole setting, the ring target cooling circuit on be provided with the breach, the both ends of ring target cooling circuit be connected with inlet tube and wet return respectively, target flange and slowing material part B on the right-hand member face on be connected with slowing material part C.
The cross-sectional shapes of the through hole, the beryllium target, the slowing material part A and the slowing material part B are all round, and the diameters of the beryllium target, the slowing material part A and the slowing material part B are the same as the diameter of the through hole.
The inner side surface of the through hole is provided with a convex target buckle close to the left end surface, and the outer side surface of the beryllium target is provided with a concave target buckle which is matched with the convex target buckle in structural dimension close to the left end surface.
The slowing material component A is fixedly connected with the beryllium target and the slowing material component B respectively.
And the beryllium target, the slowing material part A and the slowing material part B are respectively fixedly connected with the through hole in the center of the target flange.
The center of symmetry of the axis of the annular target cooling circuit and the center of symmetry of the through hole are coaxially arranged.
And the target flange and the moderating material component C are respectively provided with a threaded hole A and a threaded hole B.
The target flange is a moderator component.
The invention has the beneficial effects that: the invention adopts the embedded target structure, and can quickly and stably fix the target structure, thereby realizing quick assembly and replacement of the target; although the beryllium target adopted by the invention has nuclear reaction under the bombardment effect of beam current, because the half-life is extremely short, the influence on the surrounding environment is almost zero, compared with a reactor neutron source and an isotope neutron source, the solid beryllium target is used as a bombarded target of the beam current, and the invention has the advantage of high safety, and compared with a lithium target neutron source, the invention has the advantages of easy storage, transportation, low storage and maintenance cost and high neutron flux; each component of the device of the invention is not radioactive, so the device is safer, more convenient, easier to popularize, more compact, economical and more practical in operation and maintenance.
Drawings
FIG. 1 is a schematic cross-sectional view of an embedded target structure according to the present invention.
Fig. 2 is a schematic diagram of a front view of a mosaic target structure according to the present invention.
FIG. 3 is a schematic cross-sectional view of a right-hand structure of an embedded target structure of the present invention.
Fig. 4 is an enlarged schematic view of a partial structure of a mosaic target structure according to the present invention.
In the figure: 1. the device comprises a target flange 2, a ring target cooling circuit 3, a through hole 4, a slowing material component B5, a slowing material component A6, a beryllium target 7, a convex target buckle 8, a threaded hole A9, a water inlet pipe 10, a concave target buckle 11, a threaded hole B12, a slowing material component C13, a water return pipe 14 and a notch.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1-4, an embedded target structure comprises a target flange 1, a through hole 3 is formed in the center of the target flange 1, a beryllium target 6 is arranged in the through hole 3, the left end face of the beryllium target 6 is coplanar with the left end face of the target flange 1, a slowing material component A5 is connected to the right end face of the beryllium target 6 in the through hole 3, a slowing material component B4 is connected to the right end face of the slowing material component A5, the right end face of the slowing material component B4 is coplanar with the right end face of the target flange 1, a ring target cooling loop 2 is arranged at a position, close to the through hole, inside the target flange 1, of the ring target cooling loop 2 is arranged around the through hole 3, a notch 14 is formed in the ring target cooling loop 2, two ends of the ring target cooling loop 2 are respectively connected with a water inlet pipe 9 and a water return pipe 13, and a slowing material component C12 is connected to the right end faces of the target flange 1 and the slowing material component B4.
The beryllium target, the moderating material component A and the moderating material component B form a core component of the target together, the core component of the target is fixed in a through hole in the center of a target flange to form a whole, then the whole is connected with the moderating material component C, under the bombardment of neutron beam, the beryllium target can generate certain neutrons, and the generated neutrons sequentially pass through the moderating material component A, the moderating material component B and the moderating material component C and become thermal neutrons and thermal external neutrons with lower energy at the designed outlet position on the right side of the moderating material component C so as to meet the application requirements, and a ring target cooling loop around the core component of the target is mainly used for cooling the core component of the target which heats due to neutron beam bombardment; the target flange is mainly used for fixing a core component and a moderating material component C of the target, and the beryllium target is mainly used for generating neutrons; the invention can generate neutrons more safely, and can lead neutrons to come out after being slowed down only in a specified direction, the speed is very low, and the slow neutrons are safer and easier to popularize to apply, thereby providing convenience for the practicality of neutrons; when the invention is used, the invention is matched with the peripheral shielding material and the collimator device, can be used as a neutron source for boron neutron capture cancer treatment, can be used as a neutron source for nondestructive inspection, can be used as a neutron source for neutron imaging, can be used as a neutron source for material irradiation, and has high safety and easy popularization.
Example 2
As shown in fig. 1-4, an embedded target structure comprises a target flange 1, wherein a through hole 3 is formed in the center of the target flange 1, a beryllium target 6 is arranged in the through hole 3, the left end face of the beryllium target 6 is coplanar with the left end face of the target flange 1, a slowing material part A5 is connected to the right end face of the beryllium target 6 in the through hole 3, a slowing material part B4 is connected to the right end face of the slowing material part A5, the right end face of the slowing material part B4 is coplanar with the right end face of the target flange 1, a ring target cooling loop 2 is arranged at a position, close to the through hole, inside the target flange 1, of the target flange 2, a notch 14 is formed in the ring target cooling loop 2, two ends of the ring target cooling loop 2 are respectively connected with a water inlet pipe 9 and a water return pipe 13, and a slowing material part C12 is connected to the right end faces of the target flange 1 and the slowing material part B4; the cross-sectional shapes of the through hole 3 and the beryllium target 6, the slowing material part A5 and the slowing material part B4 are all round, and the diameters of the beryllium target 6, the slowing material part A5 and the slowing material part B4 are the same as the diameter of the through hole 3; a convex target buckle 7 is arranged on the inner side surface of the through hole 3 near the left end surface, and a concave target buckle 10 which is matched with the convex target buckle 7 in structural size is arranged on the outer side surface of the beryllium target 6 near the left end surface; the slowing material part A5 is fixedly connected with the beryllium target 6 and the slowing material part B4 respectively; the beryllium target 6, the slowing material part A5 and the slowing material part B4 are respectively fixedly connected with the through hole 3 in the center of the flange of the target 6; the symmetry center of the axis of the annular target cooling loop 2 and the symmetry center of the through hole 3 are coaxially arranged; threaded holes A8 and threaded holes B11 are respectively formed in the target flange 1 and the slowing material component C12; the target flange 1 is a moderator component.
The beryllium target, the moderating material component A and the moderating material component B form a core component of the target together, the core component of the target is fixed in a through hole in the center of a target flange to form a whole, then the whole is connected with the moderating material component C, under the bombardment of neutron beam, the beryllium target can generate certain neutrons, and the generated neutrons sequentially pass through the moderating material component A, the moderating material component B and the moderating material component C and become thermal neutrons and thermal external neutrons with lower energy at the designed outlet position on the right side of the moderating material component C so as to meet the application requirements, and a ring target cooling loop around the core component of the target is mainly used for cooling the core component of the target which heats due to neutron beam bombardment; the cross sections of the through hole, the beryllium target, the slowing material part A and the slowing material part B are all round, and the diameters of the beryllium target, the slowing material part A and the slowing material part B are the same as those of the through hole, so that the outermost peripheral dimension of the core part of the target is tightly connected with the size of the through hole in the center of the target flange; a convex target buckle is arranged on the inner side surface of the through hole and close to the left end surface, a concave target buckle which is matched with the convex target buckle in structural size is arranged on the outer side surface of the beryllium target and close to the left end surface, and the convex target buckle and the concave target buckle are exactly matched when the core part of the target is fixedly connected with the target flange, so that the stable fixation of the core part of the target can be realized; the center of symmetry of the axis of the annular target cooling circuit and the center of symmetry of the through hole are coaxially arranged, so that the annular target cooling circuit is guaranteed to have a good cooling effect; the target flange and the slowing material component C are respectively provided with a threaded hole A and a threaded hole B, after the target flange is assembled into a whole through the matching and the connection of a convex target buckle and a concave target buckle, the target flange is fixedly connected with the slowing material C through screws, so that the target flange can tightly clamp and fix the core component of the target, and the target is stably and quickly replaced; the target flange is mainly used for fixing a core component and a moderating material component C of the target, and the beryllium target is mainly used for generating neutrons; the invention can generate neutrons more safely, and can lead the neutrons to come out after being slowed down in a specified direction, the half life period is extremely short, and the application of the neutrons is safer and more popular, thereby providing convenience for the practicality of the neutrons; when the invention is used, the invention is matched with the peripheral shielding material and the collimator device, can be used as a neutron source for boron neutron capture cancer treatment, can be used as a neutron source for nondestructive inspection, can be used as a neutron source for neutron imaging, can be used as a neutron source for material irradiation, and has high safety and easy popularization.
Claims (1)
1. An embedded target structure, which comprises a target flange, and is characterized in that: the center of the target flange is provided with a through hole, a beryllium target is arranged in the through hole, the left end face of the beryllium target is coplanar with the left end face of the target flange, the right end face of the beryllium target in the through hole is connected with a slowing material part A, the right end face of the slowing material part A is connected with a slowing material part B, the right end face of the slowing material part B is coplanar with the right end face of the target flange, a ring target cooling loop is arranged at the position, close to the through hole, inside the target flange, of the target flange, the ring target cooling loop is arranged around the through hole, a notch is formed in the ring target cooling loop, two ends of the ring target cooling loop are respectively connected with a water inlet pipe and a water return pipe, and the right end faces of the target flange and the slowing material part B are connected with a slowing material part C;
the cross section shapes and the sizes of the through hole, the beryllium target, the slowing material part A and the slowing material part B are consistent, and the sizes of the beryllium target, the slowing material part A and the slowing material part B are the same as the vertical size of the through hole; a convex target buckle is arranged on the inner side surface of the through hole and close to the left end surface, and a concave target buckle matched with the convex target buckle in structure size is arranged on the outer side surface of the beryllium target and close to the left end surface; the slowing material component A is fixedly connected with the beryllium target and the slowing material component B respectively; the beryllium target, the slowing material component A and the slowing material component B are respectively fixedly connected with a through hole in the center of the target flange; the center of symmetry of the axis of the annular target cooling loop and the center of symmetry of the through hole are coaxially arranged; threaded holes A and threaded holes B are respectively formed in the target flange and the slowing material component C; the target flange is a moderator component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810532571.8A CN108550411B (en) | 2018-05-29 | 2018-05-29 | Mosaic target structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810532571.8A CN108550411B (en) | 2018-05-29 | 2018-05-29 | Mosaic target structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108550411A CN108550411A (en) | 2018-09-18 |
| CN108550411B true CN108550411B (en) | 2024-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810532571.8A Active CN108550411B (en) | 2018-05-29 | 2018-05-29 | Mosaic target structure |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109637690A (en) * | 2018-11-06 | 2019-04-16 | 钱铁威 | A kind of neutron source target nucleus core structure |
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| CN105282955A (en) * | 2015-08-10 | 2016-01-27 | 东莞中子科学中心 | High-power neutron generation target having minimal heat dissipation channels |
| WO2017118291A1 (en) * | 2016-01-08 | 2017-07-13 | 南京中硼联康医疗科技有限公司 | Beam shaper for neutron capture therapy |
| CN207305028U (en) * | 2017-05-26 | 2018-05-01 | 山东新华医疗器械股份有限公司 | New target structure for S-band resident wave accelerating pipe |
| CN208256301U (en) * | 2018-05-29 | 2018-12-18 | 河南太粒科技有限公司 | A kind of inserted target structure |
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| CN2145494Y (en) * | 1993-02-25 | 1993-11-03 | 清华大学 | Rotary target device of liquid metal cooling |
| JP2000180600A (en) * | 1998-12-11 | 2000-06-30 | Hitachi Ltd | Solid target and neutron generator |
| CN2689185Y (en) * | 2003-08-25 | 2005-03-30 | 刘建华 | Round target pore plates |
| WO2008100269A2 (en) * | 2006-06-09 | 2008-08-21 | The Regents Of The University Of California | Compact neutron source and moderator |
| RU74026U1 (en) * | 2008-01-10 | 2008-06-10 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт автоматики им. Н.Л. Духова" | SEALED NEUTRON PIPE |
| CN101550538A (en) * | 2009-05-15 | 2009-10-07 | 中国科学院物理研究所 | Magnetron sputtering target used for ultra high vacuum and process for preparing magnet in the target |
| KR101514250B1 (en) * | 2013-11-19 | 2015-04-22 | 한국원자력연구원 | Target for neutron generator using beryllium and neutron generator having the same |
| JP2019068870A (en) * | 2016-02-26 | 2019-05-09 | 住友重機械工業株式会社 | Neutron capture therapy device and target for neutron capture therapy |
| US20190122780A1 (en) * | 2016-04-21 | 2019-04-25 | Kaneka Corporation | Target, target production method, and neutron generation device |
| CN106683737B (en) * | 2017-02-14 | 2018-05-29 | 中国科学院合肥物质科学研究院 | A kind of gaseous state target neutron source |
| CN107093485B (en) * | 2017-06-23 | 2019-06-04 | 东莞中子科学中心 | Reflector for spallation neutron source |
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2018
- 2018-05-29 CN CN201810532571.8A patent/CN108550411B/en active Active
Patent Citations (4)
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|---|---|---|---|---|
| CN105282955A (en) * | 2015-08-10 | 2016-01-27 | 东莞中子科学中心 | High-power neutron generation target having minimal heat dissipation channels |
| WO2017118291A1 (en) * | 2016-01-08 | 2017-07-13 | 南京中硼联康医疗科技有限公司 | Beam shaper for neutron capture therapy |
| CN207305028U (en) * | 2017-05-26 | 2018-05-01 | 山东新华医疗器械股份有限公司 | New target structure for S-band resident wave accelerating pipe |
| CN208256301U (en) * | 2018-05-29 | 2018-12-18 | 河南太粒科技有限公司 | A kind of inserted target structure |
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| Publication number | Publication date |
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| CN108550411A (en) | 2018-09-18 |
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