CN109884094A - A kind of neutron non-destructive testing device - Google Patents
A kind of neutron non-destructive testing device Download PDFInfo
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- CN109884094A CN109884094A CN201910282512.4A CN201910282512A CN109884094A CN 109884094 A CN109884094 A CN 109884094A CN 201910282512 A CN201910282512 A CN 201910282512A CN 109884094 A CN109884094 A CN 109884094A
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- screening cover
- neutron
- pedestal
- destructive testing
- testing device
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Abstract
The invention discloses a kind of neutron non-destructive testing devices, including neutron emitting source, pedestal, screening cover, neutron imaging detector, pedestal upper side is sample deposition, the cavity of installation neutron emitting source is equipped among pedestal, the cavity is arranged through the upside of pedestal, the screening cover is located on the upside of pedestal, and screening cover can carry out the adjusting of position in above-below direction, and the upside of screening cover is arranged in the neutron imaging detector；The screening cover is up-small and down-big conical tube structure, it further include shielded-plate tube, the shielded-plate tube is vertically arranged in screening cover, it is connected at the upper end of shielded-plate tube and the upper end opening of screening cover, shielded-plate tube is the setting that can stretch up and down, and the inner sidewall of the screening cover is equipped with Reflective regulation plate, the lower end of Reflective regulation plate and screening cover are articulated and connected, screening cover is equipped with threaded hole, is connected with adjusting screw rod on the threaded hole, the adjusting screw rod is connect with the upper end of Reflective regulation plate.
Description
Technical field
The present invention relates to neutron detection device technical fields, and in particular to a kind of neutron non-destructive testing device.
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.Especially in aviation field, to zero
The inside of component, which carries out detection, to be necessary, if there are cavity or slight cracks inside components, it is easy to cause unexpected thing
Therefore threaten the personal safety of people.Generally when detecting, neutron is transmitted from sample to be tested, then directive imaging system,
But the transmission direction of neutron is not only directive imaging system, can also be encountered to transmittance to the neutron of transmittance
Reflection can be generated again after object, which is applied to the precision that imaging system influences whether detection.
Summary of the invention
The object of the present invention is to provide a kind of neutron non-destructive testing devices that detection accuracy is high.
A kind of neutron non-destructive testing device, including neutron emitting source, pedestal, screening cover, neutron imaging detector, on pedestal
Side is sample deposition, and the cavity of installation neutron emitting source is equipped among pedestal, and the cavity is set on the upside of pedestal
It sets, the screening cover is located on the upside of pedestal, and screening cover can carry out the adjusting of position in above-below direction, and the neutron imaging is visited
Survey the upside that screening cover is arranged in device；
The screening cover is up-small and down-big conical tube structure, further includes shielded-plate tube, the shielded-plate tube is set vertically
It sets in screening cover, is connected at the upper end of shielded-plate tube and the upper end opening of screening cover, shielded-plate tube is the setting that can stretch up and down, described
The inner sidewall of screening cover be equipped with Reflective regulation plate, the lower end of Reflective regulation plate and screening cover are articulated and connected, set on screening cover
There is threaded hole, adjusting screw rod is connected on the threaded hole, the adjusting screw rod is connect with the upper end of Reflective regulation plate；
The neutron imaging detector includes that scintillation screen, optical frames be first, reflecting mirror, optical lens two, CCD camera,
The scintillation screen is horizontally set at the upper end opening of screening cover, and the optical frames is first to be arranged towards scintillation screen, optics
Camera lens two with optical frames is first is arranged in a mutually vertical manner, transmitting mirror is arranged between optical lens two and optical frames are first and in the two
Between realize light transmitting, CCD camera connect with optical lens two.
The present invention is further arranged to, and the pedestal is equipped with guide rod, and the screening cover is equipped with and guiding
The pilot hole of bar cooperation, the pedestal are equipped with the driving device one that driving screening cover moves on the guide bar.
The present invention is further arranged to, and the shielded-plate tube includes the fixing pipe and adjustable pipe of coaxial arrangement, described
Fixing pipe is fixedly connected with screening cover, and the adjustable pipe is threadedly coupled with fixing pipe.
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 scintillation screen is the cold neutrons conversion screen of fiber panel structure.
The present invention is further arranged to, the cross section that the screening cover is be it is rectangular, on four inner sidewalls respectively
Equipped with Reflective regulation plate.
The present invention is further arranged to, and the bottom that the lower end of the Reflective regulation plate is higher than screening cover is arranged, reflection
The upper end of adjustable plate is arranged lower than the lower end of fixing pipe.
The present invention is further arranged to, and the upper side of the pedestal is equipped with sample rack.
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:
Neutron non-destructive testing device provided herein can carry out the neutron that foreign object emits shielding isolation and fall, keep away
The neutron directive scintillation screen for exempting from reflection, causes detection error, makes scintillation screen that can only receive the neutron transmitted from sample, from
And improve the precision of detection.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of screening cover of the present 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 non-destructive testing device, including neutron emitting source 1, pedestal 2, screening cover 3, neutron imaging detector, bottom
2 upper sides of seat are sample deposition, and the cavity 4 of installation neutron emitting source 1 is equipped among pedestal 2, and the cavity 4 runs through pedestal
2 upside setting enables the given-ioff neutron beam upwards of emission source 1, and the screening cover 3 is located on the upside of pedestal 2, and screening cover 3 can be
Up and down direction carries out the adjusting of position, and screening cover 3 can move up opening and move down closing, and screening cover 3 is by energy absorbing screen
The material for covering neutron is made, and the upside of screening cover 3 is arranged in the neutron imaging detector.
The screening cover 3 is up-small and down-big conical tube structure, and pyramidal structure setting may make directive screening cover
The reflection direction of neutron is obliquely, to avoid reflected neutron directive imaging detector.
It further include shielded-plate tube 5, the shielded-plate tube 5 is vertically arranged in screening cover 3, the upper end of shielded-plate tube 5 and screening cover 3
Upper end opening at connect, shielded-plate tube 5 is can stretch up and down setting, and the shielded-plate tube 5 includes the fixing pipe 51 that is coaxially disposed
With adjustable pipe 52, the fixing pipe 51 is fixedly connected with screening cover 3, and the adjustable pipe 52 is threadedly coupled with fixing pipe 51.
By using above-mentioned technical proposal, shielded-plate tube 5 can further stop the neutron of directive imaging detector, in use, adjustable pipe
52 can be regulated down to the upper side as close as sample to be tested, can reach better blocking effect in this way.
The inner sidewall of the screening cover 3 is equipped with Reflective regulation plate 6, and the lower end of Reflective regulation plate 6 and screening cover 3 are hinged
Connection, screening cover 3 are equipped with threaded hole, and adjusting screw rod 7, the adjusting screw rod 7 and reflection are connected on the threaded hole
The upper end of adjustable plate 6 connects.In above-mentioned technical proposal, the inclination angle of Reflective regulation plate 6 is adjusted by turn adjusting screw rod 7
Degree is that the neutron of reflection is reflected down as far as possible, is arranged to adjust the reflection angle of the neutron of directive Reflective regulation plate 6
The purpose of Reflective regulation plate 6, to avoid the neutron of directive screening cover in some cases because the tilt angle of screening cover is inadequate, and
Neutron is caused to reflect upwards, directive imaging detector, so setting Reflective regulation plate 6 further adjusts tilt angle.
In above-mentioned technical proposal, the neutron of imaging detector reflection is turned by shielding to reach the mesh for improving detection accuracy
's.
The neutron imaging detector includes that scintillation screen 8, optical frames be first 9, reflecting mirror 10, optical lens 2 11, CCD
Camera 12, the scintillation screen 8 are horizontally set at the upper end opening of screening cover 3, and the optical frames first 9 is towards scintillation screen
8 settings, optical lens 2 11 are arranged in a mutually vertical manner with optical frames first 9, and transmitting mirror is arranged in optical lens 2 11 and optical frames
Light transmitting is realized between first 9 and therebetween, and CCD camera 12 is connect with optical lens 2 11.The CCD camera 12
Model Andor iKon-LDZ936CCD.The optical frames first 9 is large aperture camera lens, and the optical lens 2 11 is preferred
It can 180mm micro-lens.The scintillation screen 8 is the cold neutrons conversion screen of fiber panel structure.The optical lens 2 11
The distance between reflecting mirror 10 can be adjusted.
Wherein, the pedestal 2 is equipped with guide rod 13, and the screening cover 3 is equipped with and leads with what guide rod 13 cooperated
To hole 14, the pedestal 2 is equipped with the driving device 1 that driving screening cover 3 moves on guide rod 13.
Wherein, the cross section that the screening cover 3 is be it is rectangular, be respectively equipped with Reflective regulation plate 6 on four inner sidewalls.
Wherein, the bottom that the lower end of the Reflective regulation plate 6 is higher than screening cover 3 is arranged, and the upper end of Reflective regulation plate 6 is low
It is arranged in the lower end of fixing pipe 51.
Wherein, the upper side of the pedestal 2 is equipped with sample rack 21.
Beneficial effects of the present invention:
Neutron non-destructive testing device provided herein can carry out the neutron that foreign object emits shielding isolation and fall, keep away
The neutron directive scintillation screen 8 for exempting from transmitting, causes detection error, makes scintillation screen 8 that can only receive the neutron transmitted from sample,
To improve the precision of detection.
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 non-destructive testing device, it is characterised in that: including neutron emitting source, pedestal, screening cover, neutron imaging detection
Device, pedestal upper side are sample deposition, the cavity of installation neutron emitting source are equipped among pedestal, the cavity runs through pedestal
Upside setting, the screening cover is located on the upside of pedestal, and screening cover can carry out the adjusting of position in above-below direction, it is described in
The upside of screening cover is arranged in sub- imaging detector；
The screening cover is up-small and down-big conical tube structure, further includes shielded-plate tube, the shielded-plate tube is vertically arranged in
It in screening cover, is connected at the upper end of shielded-plate tube and the upper end opening of screening cover, shielded-plate tube is the setting that can stretch up and down, the screen
The inner sidewall for covering lid is equipped with Reflective regulation plate, and the lower end of Reflective regulation plate and screening cover are articulated and connected, and screening cover is equipped with spiral shell
Pit is connected with adjusting screw rod on the threaded hole, and the adjusting screw rod is connect with the upper end of Reflective regulation plate；
The neutron imaging detector includes that scintillation screen, optical frames be first, reflecting mirror, optical lens two, CCD camera, described
Scintillation screen be horizontally set at the upper end opening of screening cover, the optical frames it is first towards scintillation screen be arranged, optical lens
Two with optical frames is first is arranged in a mutually vertical manner, transmitting mirror is arranged between optical lens two and optical frames are first and therebetween
Realize light transmitting, CCD camera is connect with optical lens two.
2. a kind of neutron non-destructive testing device according to claim 1, it is characterised in that: the pedestal is equipped with guiding
Bar, the screening cover are equipped with the pilot hole cooperated with guide rod, and the pedestal is equipped with driving screening cover in guide rod
The driving device one of upper movement.
3. a kind of neutron non-destructive testing device according to claim 1, it is characterised in that: the shielded-plate tube includes coaxial
The fixing pipe and adjustable pipe of setting, the fixing pipe are fixedly connected with screening cover, and the adjustable pipe and fixed pipe screw thread connect
It connects.
4. a kind of neutron non-destructive testing device according to claim 1, it is characterised in that: the model of the CCD camera
For Andor iKon-LDZ936CCD.
5. a kind of neutron non-destructive testing device according to claim 1, it is characterised in that: the first optical frames is big
Aperture camera lens, the optical lens two are Canon 180mm micro-lens.
6. a kind of neutron non-destructive testing device according to claim 1, it is characterised in that: the scintillation screen is fibrous face
The cold neutrons conversion screen of hardened structure.
7. a kind of neutron non-destructive testing device according to claim 3, it is characterised in that: the screening cover is transversal
Face be it is rectangular, be respectively equipped with Reflective regulation plate on four inner sidewalls.
8. a kind of neutron non-destructive testing device according to claim 7, it is characterised in that: under the Reflective regulation plate
The bottom that end is higher than screening cover is arranged, and the upper end of Reflective regulation plate is arranged lower than the lower end of fixing pipe.
9. a kind of neutron non-destructive testing device according to claim 1, it is characterised in that: on the upper side of the pedestal
Equipped with sample rack.
10. a kind of neutron non-destructive testing device according to claim 1, it is characterised in that: the optical lens two with
The distance between reflecting mirror can be adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910282512.4A CN109884094A (en) | 2019-04-09 | 2019-04-09 | A kind of neutron non-destructive testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910282512.4A CN109884094A (en) | 2019-04-09 | 2019-04-09 | A kind of neutron non-destructive testing device |
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| Publication Number | Publication Date |
|---|---|
| CN109884094A true CN109884094A (en) | 2019-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910282512.4A Pending CN109884094A (en) | 2019-04-09 | 2019-04-09 | A kind of neutron non-destructive testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115128788A (en) * | 2022-05-30 | 2022-09-30 | 中国人民解放军国防科技大学 | Horizontally arranged microscope parallel to observation object |
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| CN202102119U (en) * | 2011-06-28 | 2012-01-04 | 中国原子能科学研究院 | Neutron streaming position survey meter |
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| RU2683238C1 (en) * | 2018-05-28 | 2019-03-27 | Федеральное казенное учреждение "войсковая часть 33949" (ФКУ "В/Ч 33949" | Shielding device for means of display and information processing |
| CN209727809U (en) * | 2019-04-09 | 2019-12-03 | 北京中百源国际科技创新研究有限公司 | A kind of neutron non-destructive testing device |
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Patent Citations (8)
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| WO2003104799A2 (en) * | 2002-06-11 | 2003-12-18 | Deutsches Krebsforschungzentrum Stiftung Des Öffentlichen Rechts | Imaging method and device for carrying out said method |
| US20080210880A1 (en) * | 2005-03-10 | 2008-09-04 | Commissariat A L'energie Atomique | Two-Dimensional Detection System for Neutron Radiation in the Field of Neutron Scattering Spectrometry |
| US7566873B1 (en) * | 2006-11-17 | 2009-07-28 | Kla-Tencor Technologies Corporation | High-resolution, low-distortion and high-efficiency optical coupling in detection system of electron beam apparatus |
| WO2010008307A2 (en) * | 2008-07-14 | 2010-01-21 | Politechnika Wroclawska | Electron detection unit and a scanning electron microscope |
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| RU2683238C1 (en) * | 2018-05-28 | 2019-03-27 | Федеральное казенное учреждение "войсковая часть 33949" (ФКУ "В/Ч 33949" | Shielding device for means of display and information processing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115128788A (en) * | 2022-05-30 | 2022-09-30 | 中国人民解放军国防科技大学 | Horizontally arranged microscope parallel to observation object |
| CN115128788B (en) * | 2022-05-30 | 2023-11-28 | 中国人民解放军国防科技大学 | Horizontally placed microscopic device parallel to observed object |
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Effective date of registration: 20200102 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. |