CN109884096A - A kind of neutron detection device of high security - Google Patents
A kind of neutron detection device of high security Download PDFInfo
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- CN109884096A CN109884096A CN201910288879.7A CN201910288879A CN109884096A CN 109884096 A CN109884096 A CN 109884096A CN 201910288879 A CN201910288879 A CN 201910288879A CN 109884096 A CN109884096 A CN 109884096A
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- 238000001514 detection method Methods 0.000 title claims abstract description 36
- 238000003384 imaging method Methods 0.000 claims abstract description 17
- 230000005855 radiation Effects 0.000 claims abstract description 16
- 230000000149 penetrating effect Effects 0.000 claims abstract 2
- 230000003287 optical effect Effects 0.000 claims description 31
- 238000005259 measurement Methods 0.000 claims description 8
- 239000013307 optical fiber Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The invention discloses a kind of neutron detection devices of high security, including neutron emitting source, neutron shield box, sample container, neutron imaging detector, sample container is arranged inside neutron shield box, the upper end of sample container is connected with liquid-feeding tube, the lower end of sample container is connected with outlet tube, the inner sidewall interval of sample container and neutron shield box is arranged, radiation protection medium is filled between neutron shield box and sample container, the left side of sample container is equipped with neutron incident pipe, the right end of neutron incident pipe is connect with the outer wall of sample container, the left end of neutron incident pipe is pierced by from the left side wall of neutron shielding box, the right side of the sample container is equipped with neutron exit tube, the left end of neutron exit tube is connect with the outer wall of sample container, the right end of neutron exit tube is pierced by from the right side wall of neutron shielding box, neutron hair The source of penetrating is connected to the left end of neutron incident pipe, and neutron imaging detector is connected to the right end of neutron exit tube.
Description
Technical field
The present invention relates to neutron detection device technical fields, and in particular to a kind of neutron detection device of high security.
Background technique
Neutron detection is that non-damaged data is carried out using the transmission of neutron, the application of this kind of detection mode, is human eye
The detection in the interior of articles region that can not be observed and can not contact brings huge convenience.
Neutron detection also can be used to detect the performance parameters of some liquid, still, irradiation of some liquid by neutron beam
It may radiate, cause safety accident, it is therefore necessary to improve its security performance.
Summary of the invention
The object of the present invention is to provide a kind of neutron detection devices of high security, and setting is anti-around detection position
Radiation medium, to improve the safety of detection, and detection accuracy with higher.
A kind of neutron detection device of high security, including neutron emitting source, neutron shield box, sample container, neutron
Imaging detector, sample container are arranged inside neutron shield box, and the upper end of sample container is connected with liquid-feeding tube, liquid-feeding tube
Upper end stretched out from the upper side wall of neutron shielding box, the lower end of sample container is connected with outlet tube, and the lower end of outlet tube is therefrom
The lower wall of sub- shielding box is stretched out, and the inner sidewall interval of sample container and neutron shield box is arranged, neutron shield box and sample
Radiation protection medium is filled between container, the left side of the sample container is equipped with neutron incident pipe, neutron incident pipe
Right end is connect with the outer wall of sample container, and the left end of neutron incident pipe is pierced by from the left side wall of neutron shielding box, the sample
The right side of product container is equipped with neutron exit tube, and the left end of neutron exit tube is connect with the outer wall of sample container, neutron outgoing
The right end of pipe is pierced by from the right side wall of neutron shielding box, and neutron emitting source is connected to the left end of neutron incident pipe, and neutron imaging is visited
Survey the right end that device is connected to neutron exit tube, neutron incident pipe and the coaxial arrangement of neutron exit tube.
The present invention is further arranged to, and the neutron imaging detector includes scintillation screen, optical frames is first, reflects
Mirror, optical lens two, CCD camera, the scintillation screen are horizontally set at the right-end openings of neutron exit tube, the optics
Camera lens one is arranged towards scintillation screen, optical lens two with optical frames is first is arranged in a mutually vertical manner, reflecting mirror setting is in optical lens
Two and optical frames it is first between and realize light transmitting therebetween, CCD camera connect with optical lens two.
The present invention is further arranged to, and the neutron incident pipe is the small pyramidal structure of the big right end in left end, described
Neutron exit tube is the big pyramidal structure of the small right end in left end.
The present invention is further arranged to, and the radiation protection medium is lead.
The present invention is further arranged to, and neutron howitzer is equipped between the neutron incident pipe and neutron emitting source.
The present invention is further arranged to, the model Andor iKon-LDZ936CCD of the CCD camera.
The present invention is further arranged to, and the first optical frames is large aperture camera lens, and the optical lens two is preferred
It can 180mm micro-lens.
The present invention is further arranged to, and the neutron shield box includes interior neutron shield box and outer neutron shield box,
Interior neutron shield box is arranged in outer neutron shield box and the two is spaced apart from each other setting, and radiation protection media filler is in interior neutron shield
Between box and outer neutron shield box, the neutron imaging detector is arranged in interior neutron shield box, the neutron imaging
Detector includes neutron detection scintillator and detects the light issued from the neutron detection scintillator and be converted into telecommunications
Number photodetector, photodetector has multiple optical fiber and multiple photodetectors, and what multiple optical fiber corresponded to scintillator enters firing table
Multiple positions in face are arranged, and multiple photodetectors are arranged corresponding to multiple optical fiber, and neutron measurement device and photodetector connect
It connects, neutron measurement device is used to record the number of light emission times of photodetector, and neutron detection is set with scintillator towards neutron exit tube
It sets.
The present invention is further arranged to, and the scintillation screen is the cold neutrons conversion screen of fiber panel structure.
The present invention is further arranged to, and the distance between the optical lens two and reflecting mirror can be adjusted.
Beneficial effects of the present invention:
The neutron detection device of high security provided herein, circular sample container are placed with radiation protection Jie
Matter is masked the radiation that may occur by radiation protection medium, improves the safety that equipment uses.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is structural schematic diagram of the invention.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Below with reference to Fig. 1 to Fig. 2, the present invention will be described.
A kind of neutron detection device of high security, including neutron emitting source 1, neutron shield box 2, sample container 3, in
Sub- imaging detector 4, sample container 3 are arranged inside neutron shield box 2, and the upper end of sample container 3 is connected with liquid-feeding tube
5, the upper end of liquid-feeding tube 5 is stretched out from the upper side wall of neutron shielding box 2, and the lower end of sample container 3 is connected with outlet tube 6, out liquid
The lower end of pipe 6 is stretched out from the lower wall of neutron shielding box, the liquid for needing to detect to the injection of sample container 3 by liquid-feeding tube 5,
The liquid in sample container 3 is discharged by outlet tube 6.
The inner sidewall interval of sample container 3 and neutron shield box 2 is arranged, between neutron shield box 2 and sample container 3
Filled with radiation protection medium, the radiation protection medium is lead.
The left side of the sample container 3 is equipped with neutron incident pipe 7, the right end and sample container 3 of neutron incident pipe 7
Outer wall connection, the left end of neutron incident pipe 7 is pierced by from the left side wall of neutron shielding box 2, the right side of the sample container 3
Equipped with neutron exit tube 8, the left end of neutron exit tube 8 is connect with the outer wall of sample container 3, the right end of neutron exit tube 8 from
The right side wall of neutron shield box 2 is pierced by, and neutron emitting source 1 is connected to the left end of neutron incident pipe 7, and neutron imaging detector 4 connects
The right end in neutron exit tube 8 is connect, neutron incident pipe 7 and neutron exit tube 8 are coaxially disposed.Neutron incident pipe 7 and neutron outgoing
Pipe 8 can play the role of constraint and amendment neutron beam.
Wherein, the neutron imaging detector 4 includes that scintillation screen 41, optical frames be first 42, reflecting mirror 43, optical lens
2 44, CCD camera 45, the scintillation screen 41 are horizontally set at the right-end openings of neutron exit tube 8, the optical lens
One 42 are arranged towards scintillation screen 41, and optical lens 2 44 is arranged in a mutually vertical manner with optical frames first 42, and reflecting mirror is arranged in optics
Light transmitting is realized between camera lens 2 44 and optical frames first 42 and therebetween, and CCD camera 45 is connect with optical lens 2 44.
Wherein, the neutron incident pipe 7 is the small pyramidal structure of the big right end in left end, this structure can carry out neutron beam excellent
Change, make inject sample neutron beam direction of collimation injection, it is maskable fall some deflections neutron beam, the neutron exit tube
8 pyramidal structures big for the small right end in left end can guarantee that the neutron beam of injection is to inject along direction of collimation substantially, and right end gradually becomes
Greatly, it is ensured that the neutron beam of injection is received by scintillation screen completely.
Wherein, neutron howitzer 9 is equipped between the neutron incident pipe 7 and neutron emitting source 1, neutron howitzer 9 can
Neutron beam is modified.
Wherein, the model Andor iKon-LDZ936CCD of the CCD camera 45.
Wherein, the optical frames first 42 is large aperture camera lens, and the optical lens 2 44 is Canon 180mm Macro Lens
Head.
Wherein, the scintillation screen 41 is the cold neutrons conversion screen of fiber panel structure.
Wherein, the distance between the optical lens 2 44 and reflecting mirror 43 can be adjusted.
Wherein, the neutron shield box 2 includes interior neutron shield box 21 and outer neutron shield box 22, interior neutron shield box
21 settings are in outer neutron shield box 22 and the two is spaced apart from each other setting, and radiation protection media filler is in interior neutron shield box 21 and outside
Between neutron shield box 22, the neutron imaging detector 4 is arranged in interior neutron shield box 21, and the neutron imaging is visited
Device 4 is surveyed to include neutron detection scintillator 23 and detect the light issued from the neutron detection scintillator 22 and be converted into
The photodetector of electric signal, photodetector have multiple optical fiber 233 and multiple photodetectors 24, and multiple optical fiber 233 are corresponding to be dodged
Multiple positions setting of the incidence surface of bright body, multiple photodetectors 24 are arranged corresponding to multiple optical fiber 233, neutron measurement dress
It sets 25 to connect with photodetector 24, neutron measurement device 25 is used to record the number of light emission times of photodetector 24, neutron detection
It is arranged with scintillator 23 towards neutron exit tube 8.
The neutron measurement device 25 be counter, further include computing device 111, data processing equipment 112, storage set
Standby 113.The data that neutron measurement device 25 measures are sent to computing device 111 and data processing equipment 112, carry out to the data
Processing, and obtain testing result, it is ultimately stored in storage equipment 113.
Beneficial effects of the present invention:
The neutron detection device of high security provided herein, circular sample container 3 are placed with radiation protection Jie
Matter is masked the radiation that may occur by radiation protection medium, improves the safety that equipment uses.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, above-mentioned hypothesis these
Improvement and modification also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of neutron detection device of high security, it is characterised in that: hold including neutron emitting source, neutron shield box, sample
Box, neutron imaging detector are set, sample container is arranged inside neutron shield box, and the upper end of sample container is connected with liquid feeding
The upper end of pipe, liquid-feeding tube is stretched out from the upper side wall of neutron shielding box, and the lower end of sample container is connected with outlet tube, outlet tube
Lower end is stretched out from the lower wall of neutron shielding box, and the inner sidewall interval of sample container and neutron shield box is arranged, neutron shield
Radiation protection medium is filled between box and sample container, the left side of the sample container is equipped with neutron incident pipe, neutron
The right end of incident pipe is connect with the outer wall of sample container, and the left end of neutron incident pipe is pierced by from the left side wall of neutron shielding box,
The right side of the sample container is equipped with neutron exit tube, and the left end of neutron exit tube is connect with the outer wall of sample container,
The right end of neutron exit tube is pierced by from the right side wall of neutron shielding box, and neutron emitting source is connected to the left end of neutron incident pipe, in
Sub- imaging detector is connected to the right end of neutron exit tube, neutron incident pipe and the coaxial arrangement of neutron exit tube.
2. a kind of neutron detection device of high security according to claim 1, it is characterised in that: the neutron imaging
Detector includes that scintillation screen, optical frames be first, reflecting mirror, optical lens two, CCD camera, and the scintillation screen is horizontally set on
At the right-end openings of neutron exit tube, the optical frames is first to be arranged towards scintillation screen, and optical lens two and optical frames are first
It is arranged in a mutually vertical manner, reflecting mirror is arranged between optical lens two and optical frames are first and realizes light transmitting, CCD therebetween
Camera is connect with optical lens two.
3. a kind of neutron detection device of high security according to claim 1 or 2, it is characterised in that: the neutron
Incident pipe is the small pyramidal structure of the big right end in left end, and the neutron exit tube is the big pyramidal structure of the small right end in left end.
4. a kind of neutron detection device of high security according to claim 1 or 2, it is characterised in that: the anti-spoke
Penetrating medium is lead.
5. a kind of neutron detection device of high security according to claim 3, it is characterised in that: the neutron is incident
Neutron howitzer is equipped between pipe and neutron emitting source.
6. a kind of neutron detection device of high security according to claim 3, it is characterised in that: the CCD camera
Model Andor iKon-LDZ936 CCD.
7. a kind of neutron detection device of high security according to claim 3, it is characterised in that: the optical lens
One is large aperture camera lens, and the optical lens two is Canon 180mm micro-lens.
8. a kind of neutron detection device of high security according to claim 3, it is characterised in that: the neutron shield
Box includes interior neutron shield box and outer neutron shield box, and interior neutron shield box is arranged in outer neutron shield box and the two is mutual
Every setting, between interior neutron shield box and outer neutron shield box, the neutron imaging detector is set radiation protection media filler
It sets in interior neutron shield box, the neutron imaging detector includes that neutron detection scintillator and detection are examined from the neutron
There are multiple optical fiber and multiple light to examine for the light of survey scintillator sending and the photodetector for being converted into electric signal, photodetector
Element is surveyed, multiple optical fiber correspond to multiple positions setting of the incidence surface of scintillator, and multiple photodetectors correspond to multiple light
Fibre setting, neutron measurement device are connect with photodetector, and neutron measurement device is used to record the number of light emission times of photodetector,
Neutron detection scintillator is arranged towards neutron exit tube.
9. a kind of neutron detection device of high security according to claim 3, it is characterised in that: the scintillation screen is
The cold neutrons conversion screen of fiber panel structure.
10. a kind of neutron detection device of high security according to claim 3, it is characterised in that: the optical frames
The distance between first two and reflecting mirror can be adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910288879.7A CN109884096A (en) | 2019-04-11 | 2019-04-11 | A kind of neutron detection device of high security |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910288879.7A CN109884096A (en) | 2019-04-11 | 2019-04-11 | A kind of neutron detection device of high security |
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| Publication Number | Publication Date |
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| CN109884096A true CN109884096A (en) | 2019-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910288879.7A Pending CN109884096A (en) | 2019-04-11 | 2019-04-11 | A kind of neutron detection device of high security |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320224A (en) * | 2019-08-08 | 2019-10-11 | 中国科学技术大学 | Concrete failure detector and defectoscope |
| CN112945989A (en) * | 2019-12-11 | 2021-06-11 | 中国科学院大连化学物理研究所 | Neutron imaging characterization device of fuel cell and application |
| CN113884520A (en) * | 2021-09-24 | 2022-01-04 | 中国原子能科学研究院 | Storage testing device for neutron scattering test sample |
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| CN210198998U (en) * | 2019-04-11 | 2020-03-27 | 广东太微加速器有限公司 | Neutron detection device of high security |
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Patent Citations (6)
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| CN1421690A (en) * | 2002-12-23 | 2003-06-04 | 中国科学院上海光学精密机械研究所 | neutron diffraction tomography device |
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| CN101329284A (en) * | 2007-06-21 | 2008-12-24 | 清华大学 | Gamma-ray detector |
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Cited By (5)
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| CN110320224A (en) * | 2019-08-08 | 2019-10-11 | 中国科学技术大学 | Concrete failure detector and defectoscope |
| CN110320224B (en) * | 2019-08-08 | 2021-10-01 | 中国科学技术大学 | Concrete flaw detector and flaw detector |
| CN112945989A (en) * | 2019-12-11 | 2021-06-11 | 中国科学院大连化学物理研究所 | Neutron imaging characterization device of fuel cell and application |
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| CN113884520A (en) * | 2021-09-24 | 2022-01-04 | 中国原子能科学研究院 | Storage testing device for neutron scattering test sample |
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Effective date of registration: 20200109 Address after: 523808 room 310, building 1, No. 8, South Industrial Road, Songshanhu Park, Dongguan City, Guangdong Province Applicant after: Guangdong Taiwei accelerator Co., Ltd Address before: 101149 Beijing Tongzhou Canal Core Area IV-07 Block Greenbelt Building, 22 Floors 21389 Applicant before: Beijing Zhongbaiyuan International Science and Technology Innovation Research Co., Ltd. |
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