CN210198998U - Neutron detection device of high security - Google Patents
Neutron detection device of high security Download PDFInfo
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- CN210198998U CN210198998U CN201920485445.1U CN201920485445U CN210198998U CN 210198998 U CN210198998 U CN 210198998U CN 201920485445 U CN201920485445 U CN 201920485445U CN 210198998 U CN210198998 U CN 210198998U
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Abstract
The utility model discloses a neutron detection device with high safety, which comprises a neutron emission source, a neutron shielding box, a sample holding box and a neutron imaging detector, wherein the sample holding box is arranged inside the neutron shielding box, the upper end of the sample holding box is connected with a liquid feeding pipe, the lower end of the sample holding box is connected with a liquid discharging pipe, the sample holding box and the inner side wall of the neutron shielding box are arranged at intervals, a radiation-proof medium is filled between the neutron shielding box and the sample holding box, the left side of the sample holding box is provided with a neutron incidence pipe, the right end of the neutron incidence pipe is connected with the outer wall of the sample holding box, the left end of the neutron incidence pipe penetrates out from the left side wall of the neutron shielding box, the right side of the sample holding box is provided with a neutron emitting pipe, the left end of the neutron emitting pipe is connected with the outer wall of the sample holding box, the right end of the neutron emitting pipe penetrates out from the right side wall, the neutron imaging detector is connected to the right end of the neutron emitting tube.
Description
Technical Field
The utility model relates to a neutron check out test set technical field, concretely relates to neutron detection device of high security.
Background
The neutron detection is a nondestructive detection by utilizing the transmission of neutrons, and the application of the detection mode brings great convenience for the detection of the internal area of the object which cannot be observed and contacted by human eyes.
Neutron detection is also used to detect the parameter performance of some liquids, but some liquids may be irradiated by neutron beam to cause safety accident, so it is necessary to improve the safety performance.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a neutron detection device of high security, it sets up the radiation protection medium around detecting the position, improves the security that detects to higher detection precision has.
A neutron detection device with high safety comprises a neutron emission source, a neutron shielding box, a sample containing box and a neutron imaging detector, wherein the sample containing box is arranged inside the neutron shielding box, the upper end of the sample containing box is connected with a liquid adding pipe, the upper end of the liquid adding pipe extends out of the upper side wall of the neutron shielding box, the lower end of the sample containing box is connected with a liquid outlet pipe, the lower end of the liquid outlet pipe extends out of the lower side wall of the neutron shielding box, the sample containing box and the inner side wall of the neutron shielding box are arranged at intervals, a radiation-proof medium is filled between the neutron shielding box and the sample containing box, a neutron incidence pipe is arranged on the left side of the sample containing box, the right end of the neutron incidence pipe is connected with the outer wall of the sample containing box, the left end of the neutron incidence pipe penetrates out of the left side wall of the neutron shielding box, a neutron emitting pipe is arranged on the right side of the sample, the right-hand member of neutron outgoing tube is worn out from the right side wall of neutron shielding box, and the neutron emission source is connected at the left end of neutron incident tube, and neutron imaging detector connects the right-hand member at neutron outgoing tube, and neutron incident tube and the coaxial setting of neutron outgoing tube.
The utility model discloses still further set up to, neutron imaging detector include scintillation screen, optical lens one, speculum, optical lens two, CCD camera, scintillation screen level set up the right-hand member opening part at the neutron outgoing tube, optical lens one towards scintillation screen setting, optical lens two sets up with an optical lens mutually perpendicular, the speculum sets up between optical lens two and optical lens one and realizes the light transmission between the two, the CCD camera is connected with optical lens two.
The utility model discloses still further set up to, neutron incident tube be the little toper structure of the big right-hand member of left end, neutron outgoing tube be the big toper structure of the little right-hand member of left end.
The utility model discloses still further set up to, the radiation protection medium be plumbous.
The utility model discloses still further set up to, neutron incident tube and neutron emission source between be equipped with the neutron collimator.
The utility model discloses still further set up to, the model of CCD camera be Andor iKon-LDZ936 CCD.
The utility model discloses still further set up to, optical lens one be big light ring camera lens, optical lens two is the 180mm macro lens of canon.
The utility model is further provided with that the neutron shielding box comprises an inner neutron shielding box and an outer neutron shielding box, the inner neutron shielding box is arranged in the outer neutron shielding box and arranged at intervals, the radiation-proof medium is filled between the inner neutron shielding box and the outer neutron shielding box, neutron imaging detector set up in the neutron shielding box, neutron imaging detector include neutron detection with the scintillation body, and detect the light that sends from this neutron detection with the scintillation body and convert it into the photo-detector of signal of telecommunication, the photo-detector has a plurality of optic fibres and a plurality of light detecting element, a plurality of positions that a plurality of optic fibres correspond the incident surface of scintillation body set up, a plurality of light detecting element correspond a plurality of optic fibres and set up, neutron measuring device is connected with light detecting element, neutron measuring device is used for recording light detecting element's luminous number of times, neutron detection is with the setting of scintillation body orientation neutron outgoing tube.
The utility model discloses still further set up to, the scintillation screen be the cold neutron conversion screen of fibre panel structure.
The utility model discloses still further set up to, optical lens two and the speculum between the distance can adjust.
The utility model has the advantages that:
the application provides a neutron detection device of high security, it has placed the radiation protection medium around the sample holding box, shields the radiation that probably takes place through the radiation protection medium, has improved the security of equipment use.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The present invention will be described below with reference to fig. 1 to 2.
The utility model provides a neutron detection device of high security, including neutron emission source 1, neutron shielding box 2, sample holding box 3, neutron imaging detector 4, sample holding box 3 sets up inside neutron shielding box 2, the upper end of sample holding box 3 is connected with liquid feeding pipe 5, the upper end of liquid feeding pipe 5 stretches out from neutron shielding box 2's last lateral wall, the lower extreme of sample holding box 3 is connected with drain pipe 6, the lower lateral wall that the lower extreme of drain pipe 6 stretches out from neutron shielding box, inject the liquid that needs the detection into sample holding box 3 through liquid feeding pipe 5, through the liquid in drain pipe 6 discharge sample holding box 3.
The sample holding box 3 and the inner side wall of the neutron shielding box 2 are arranged at intervals, and a radiation-proof medium is filled between the neutron shielding box 2 and the sample holding box 3 and is lead.
The left side of sample holding box 3 be equipped with neutron incident tube 7, the right-hand member of neutron incident tube 7 and the outer wall connection of sample holding box 3, the left end of neutron incident tube 7 is worn out from the left side wall of neutron shielding box 2, the right side of sample holding box 3 be equipped with neutron emergent tube 8, the left end of neutron emergent tube 8 and the outer wall connection of sample holding box 3, the right-hand member of neutron emergent tube 8 is worn out from the right side wall of neutron shielding box 2, neutron emission source 1 is connected at the left end of neutron incident tube 7, neutron imaging detector 4 is connected at the right-hand member of neutron emergent tube 8, neutron incident tube 7 and the coaxial setting of neutron emergent tube 8. The neutron incident tube 7 and the neutron exit tube 8 can play a role in restraining and correcting neutron beams.
Wherein, neutron imaging detector 4 include scintillation screen 41, optical lens 42, speculum 43, optical lens two 44, CCD camera 45, scintillation screen 41 level set up at the right-hand member opening part of neutron outgoing tube 8, optical lens 42 set up towards scintillation screen 41, optical lens two 44 and optical lens 42 mutually perpendicular set up, the speculum sets up between optical lens two 44 and optical lens 42 and realizes light transmission between the two, CCD camera 45 is connected with optical lens two 44.
The neutron incidence tube 7 is a conical structure with a large left end and a small right end, the structure can optimize neutron beams, the neutron beams which are emitted into a sample are emitted in a collimation direction, some deflected neutron beams can be shielded, the neutron emission tube 8 is a conical structure with a small left end and a large right end, the emitted neutron beams can be basically emitted in the collimation direction, the right end is gradually enlarged, and the emitted neutron beams can be completely received by the scintillation screen.
A neutron collimator 9 is arranged between the neutron incidence tube 7 and the neutron emission source 1, and the neutron collimator 9 can correct neutron beams.
Wherein the model of the CCD camera 45 is Andor iKon-LDZ936 CCD.
The first optical lens 42 is a large aperture lens, and the second optical lens 44 is a Canon 180mm macro lens.
The scintillation screen 41 is a cold neutron conversion screen with a fiber panel structure.
The distance between the second optical lens 44 and the reflector 43 can be adjusted.
Wherein, the neutron shielding box 2 comprises an inner neutron shielding box 21 and an outer neutron shielding box 22, the inner neutron shielding box 21 is arranged in the outer neutron shielding box 22 and arranged at intervals, a radiation-proof medium is filled between the inner neutron shielding box 21 and the outer neutron shielding box 22, the neutron imaging detector 4 is arranged in the inner neutron shielding box 21, the neutron imaging detector 4 comprises a scintillator 23 for neutron detection and a light detector for detecting light emitted from the scintillator 22 for neutron detection and converting the light into an electric signal, the light detector is provided with a plurality of optical fibers 233 and a plurality of light detecting elements 24, the plurality of optical fibers 233 are arranged corresponding to a plurality of positions of the incident surface of the scintillator, the plurality of light detecting elements 24 are arranged corresponding to the plurality of optical fibers 233, the neutron measuring device 25 is connected with the light detecting elements 24, the neutron measuring device 25 is used for recording the number of light emitting times of the light detecting elements 24, the neutron detection scintillator 23 is provided toward the neutron emitting tube 8.
The neutron measurement device 25 is a counter, and further includes a calculation device 111, a data processing device 112, and a storage device 113. The data measured by the neutron measurement device 25 is sent to the calculation device 111 and the data processing device 112, processed, and the detection result is obtained and finally stored in the storage device 113.
The utility model has the advantages that:
the application provides a neutron detection device of high security, it has placed the radiation protection medium around sample holding box 3, shields the radiation that probably takes place through the radiation protection medium, has improved the security of equipment use.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations of the above assumption should also be regarded as the protection scope of the present invention.
Claims (10)
1. A neutron detection device of high security which characterized in that: the neutron imaging detector comprises a neutron emission source, a neutron shielding box, a sample containing box and a neutron imaging detector, wherein the sample containing box is arranged inside the neutron shielding box, the upper end of the sample containing box is connected with a liquid feeding pipe, the upper end of the liquid feeding pipe extends out of the upper side wall of the neutron shielding box, the lower end of the sample containing box is connected with a liquid outlet pipe, the lower end of the liquid outlet pipe extends out of the lower side wall of the neutron shielding box, the inner side walls of the sample containing box and the neutron shielding box are arranged at intervals, a radiation-proof medium is filled between the neutron shielding box and the sample containing box, the left side of the sample containing box is provided with a neutron incidence pipe, the right end of the neutron incidence pipe is connected with the outer wall of the sample containing box, the left end of the neutron incidence pipe penetrates out of the left side wall of the neutron shielding box, the right side of the sample containing box is provided with a neutron emitting pipe, the left end of the, the neutron emitting source is connected at the left end of the neutron incident tube, the neutron imaging detector is connected at the right end of the neutron emitting tube, and the neutron incident tube and the neutron emitting tube are coaxially arranged.
2. The neutron detection device with high safety according to claim 1, wherein: neutron imaging detector include scintillation screen, optical lens one, speculum, optical lens two, CCD camera, scintillation screen level set up the right-hand member opening part at neutron outgoing tube, optical lens one set up towards the scintillation screen, optical lens two sets up with optical lens one mutually perpendicular, the speculum sets up between optical lens two and optical lens one and realizes light transmission between the two, the CCD camera is connected with optical lens two.
3. The neutron detection device with high safety according to claim 2, wherein: the neutron incidence tube is of a conical structure with a large left end and a small right end, and the neutron emergent tube is of a conical structure with a small left end and a large right end.
4. The neutron detection device with high safety according to claim 1 or 2, wherein: the radiation-proof medium is lead.
5. A high-safety neutron detection device according to claim 3, wherein: and a neutron collimator is arranged between the neutron incident tube and the neutron emitting source.
6. A high-safety neutron detection device according to claim 3, wherein: the model of the CCD camera is Andor iKon-LDZ936 CCD.
7. A high-safety neutron detection device according to claim 3, wherein: the first optical lens is a large-aperture lens, and the second optical lens is a Canon 180mm macro lens.
8. A high-safety neutron detection device according to claim 3, wherein: the neutron shielding box comprises an inner neutron shielding box and an outer neutron shielding box, the inner neutron shielding box is arranged in the outer neutron shielding box and is arranged at intervals, the radiation-proof medium is filled between the inner neutron shielding box and the outer neutron shielding box, neutron imaging detector set up in the neutron shielding box, neutron imaging detector include neutron detection with the scintillation body, and detect the light that sends from this neutron detection with the scintillation body and convert it into the photo-detector of signal of telecommunication, the photo-detector has a plurality of optic fibres and a plurality of light detecting element, a plurality of positions that a plurality of optic fibres correspond the incident surface of scintillation body set up, a plurality of light detecting element correspond a plurality of optic fibres and set up, neutron measuring device is connected with light detecting element, neutron measuring device is used for recording light detecting element's luminous number of times, neutron detection is with the setting of scintillation body orientation neutron outgoing tube.
9. A high-safety neutron detection device according to claim 3, wherein: the scintillation screen is a cold neutron conversion screen with a fiber panel structure.
10. A high-safety neutron detection device according to claim 3, wherein: the distance between the second optical lens and the reflector can be adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920485445.1U CN210198998U (en) | 2019-04-11 | 2019-04-11 | Neutron detection device of high security |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920485445.1U CN210198998U (en) | 2019-04-11 | 2019-04-11 | Neutron detection device of high security |
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| Publication Number | Publication Date |
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| CN210198998U true CN210198998U (en) | 2020-03-27 |
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| CN201920485445.1U Active CN210198998U (en) | 2019-04-11 | 2019-04-11 | Neutron detection device of high security |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884096A (en) * | 2019-04-11 | 2019-06-14 | 北京中百源国际科技创新研究有限公司 | A kind of neutron detection device of high security |
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2019
- 2019-04-11 CN CN201920485445.1U patent/CN210198998U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884096A (en) * | 2019-04-11 | 2019-06-14 | 北京中百源国际科技创新研究有限公司 | A kind of neutron detection device of high security |
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