CN107966727A - A kind of neutron composite detecting device - Google Patents
A kind of neutron composite detecting device Download PDFInfo
- Publication number
- CN107966727A CN107966727A CN201711204187.7A CN201711204187A CN107966727A CN 107966727 A CN107966727 A CN 107966727A CN 201711204187 A CN201711204187 A CN 201711204187A CN 107966727 A CN107966727 A CN 107966727A
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- CN
- China
- Prior art keywords
- neutron
- detecting device
- aluminum hull
- lii
- plastic scintillant
- Prior art date
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Links
- 239000002131 composite material Substances 0.000 title claims abstract description 24
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 45
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 27
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 23
- 229910002114 biscuit porcelain Inorganic materials 0.000 claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 229920002545 silicone oil Polymers 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 7
- 239000000565 sealant Substances 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 239000003921 oil Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 239000011521 glass Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 239000010453 quartz Substances 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T3/00—Measuring neutron radiation
- G01T3/06—Measuring neutron radiation with scintillation detectors
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Measurement Of Radiation (AREA)
Abstract
The present invention relates to radiometric technique field, specifically disclose a kind of neutron composite detecting device, including aluminum hull, the magnesia bisque on aluminum hull madial wall, the plastic scintillant on the inside of magnesia bisque, on the inside of plastic scintillant6LiI (Eu) scintillators and arranged on aluminum hull, magnesia bisque, plastic scintillant and6Quartz glass above LiI (Eu) scintillator.Apparatus of the present invention can be coupled directly with photomultiplier, plus appropriate electronic circuit, can become can measure fast neutron, the neutron detector of slow neutron can be measured again, and the detector need not increase slow body structure in outside, therefore there is great advantage in volume and weight, facilitate operating personnel to use.
Description
Technical field
The invention belongs to radiometric technique field, and in particular to a kind of neutron composite detecting device.
Background technology
With flourishing for China's nuclear industry and core association area, the demand of neutron detection is increasingly increased, main table
Now：The reasonability of neutron shield design；Neutron is to the artificial number into dosage；Situation of neutron field distribution etc..Realize
Fluence rate, dosage rate, power spectrum of neutron etc. must be measured by stating content.
Neutron detector has the advantage investigative range of oneself at present, i.e., the detection efficient of different neutron detectors depends on
In the energy of detected neutron, such as10BF3Proportional counter tube,6Li glass,6LiI(Eu)、3He proportional counter tubes isotonic detects
Device be mainly used for measuring slow thermal neutron, plastic scintillant, organic crystal scintillator, liquid scintillator etc. be mainly used for measurement it is fast in
Son.If the mixing field of fast neutron and slow neutron, then need to add slow body outside slow neutron detector, to realize to fast
Detected while slow neutron, in order to preferably realize to the slowing down of fast neutron, it is necessary to slowing down body thickness is all thicker, and it is thicker
Slow body has slow neutron again to be stopped and absorbs, thus this structure to the neutron detection efficiency of whole slow neutron mixing field soon compared with
It is low, simultaneously because very thick slow body causes whole detector weight to increased dramatically with volume, make troubles to user.
The content of the invention
It is an object of the invention to provide a kind of neutron composite detecting device, solves traditional slow body and matches somebody with somebody slow neutron detector
The problem of detection efficient is relatively low.
Technical scheme is as follows：
A kind of neutron composite detecting device, including aluminum hull, magnesia bisque, plastic scintillant,6LiI (Eu) scintillator, light
Couplant, fluid sealant and quartz glass；
The aluminum hull is cylindrical shape, for lucifuge and support；
The magnesia bisque is uniformly arranged on the madial wall of aluminum hull, for reflecting passage of scintillation light；
The plastic scintillant is tubular structure, arranged on the inner side of magnesia bisque；
Described6LiI (Eu) scintillator is solid cylinder, arranged on the inner side of plastic scintillant, and and plastic scintillant
Fit closely；
The magnesia bisque, plastic scintillant and6The upper surface of LiI (Eu) scintillator is by coating one layer of optocoupler
Mixture is coupled with quartz glass.
In the upper surface of aluminum hull by setting a circle fluid sealant to fix aluminum hull and quartz glass seals.
The aluminum hull, magnesia bisque, plastic scintillant and6LiI (Eu) scintillator is coaxial.
The aluminum hull, magnesia bisque, plastic scintillant and6The upper surface of LiI (Eu) scintillator is coplanar.
The thickness of the aluminum hull is 0.5mm.
The thickness of the magnesia bisque is 1mm.
The plastic scintillant with6LiI (Eu) scintillator is coupled by silicone oil.
The optocoupler mixture is silicone oil.
The neutron composite detecting device is coupled with photoelectric conversion device by silicone oil, subsequently connects electronics circuit.
Lucifuge shell is equipped with outside the photoelectric conversion device.
The neutron detector can measure fast neutron and measure slow neutron.
The remarkable result of the present invention is：
(1) used in apparatus of the present invention6LiI (Eu) scintillator is easy deliquescence, rather than easily deliquescence, therefore common envelope
Vanning can be completed6The encapsulation of LiI (Eu) scintillator, more economy.
(2) apparatus of the present invention can be coupled directly with photomultiplier, plus appropriate electronic circuit, you can as both
Fast neutron can be measured, and the neutron detector of slow neutron can be measured, and the detector need not increase slow body structure in outside,
Therefore there is great advantage in volume and weight, facilitate operating personnel to use.
Brief description of the drawings
Fig. 1 is neutron composite detecting device schematic diagram；
Fig. 2 is neutron composite detecting device application example schematic diagram.
In figure：1- aluminum hulls；2- magnesia bisques；3- plastic scintillants；4-6LiI (Eu) scintillator；5- optocoupler mixture；6-
Fluid sealant；7- quartz glass；8- lucifuge shells；9- silicone oil；I-neutron composite detecting device；II-photoelectric conversion device；III-electronics
Learn circuit.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail the present invention.
A kind of neutron composite detecting device as shown in Figure 1, including aluminum hull 1, magnesia bisque 2, plastic scintillant 3,6LiI (Eu) scintillator 4, optocoupler mixture 5, fluid sealant 6 and quartz glass 7.
The aluminum hull 1 is cylindrical shape, for lucifuge and support, thickness 0.5mm.
The magnesia bisque 2 is uniformly arranged on the madial wall of aluminum hull 1, for reflecting passage of scintillation light, thickness 1mm.
The plastic scintillant 3 is tubular structure, arranged on the inner side of magnesia bisque 2.
Described6LiI (Eu) scintillator 4 is solid cylinder, arranged on the inner side of plastic scintillant 3, and and Plastic scintillation
Body 3 fits closely, and can be coupled both by silicone oil according to actual conditions.
The aluminum hull 1, magnesia bisque 2,3 and of plastic scintillant6LiI (Eu) scintillator 4 is coaxial, and aluminum hull 1, oxidation
Magnesium powder layer 2,3 and of plastic scintillant6The upper surface of LiI (Eu) scintillator 4 is coplanar.
In the magnesia bisque 2,3 and of plastic scintillant6The upper surface of LiI (Eu) scintillator 4 is by coating one layer
Optocoupler mixture 5 is coupled with quartz glass 7, the optocoupler mixture 5 selection silicone oil.In the upper surface of aluminum hull 1 by setting a circle
Aluminum hull 1 and quartz glass 7 are sealed fixation by fluid sealant 6.
As shown in Fig. 2, neutron composite detecting device I of the present invention is directly coupled with photoelectric conversion device II, follow-up connection
Appropriate electronics circuit III, you can as that can measure fast neutron and measure the neutron detector of slow neutron.Described
One layer of silicone oil 9 is coated between neutron composite detecting device I and photoelectric conversion device II, is equipped with and keeps away outside photoelectric conversion device II
Bare hull 8.
Neutron produces passage of scintillation light with the interaction of neutron composite detecting device I, and a part of passage of scintillation light is collected into photoelectricity and turns
In changing device II, be converted into electric signal, follow-up electronics circuit III is amplified the electric signal, shaping, examination, in obtaining
Subsignal.The example may be directly applied in general neutron fluence rate instrument, Neutron Survey meter, as main probe segment.
Since neutron composite detecting device I has response to fast neutron and slow neutron, which can be used for
The neutron for mixing neutron field is measured.
The application example need not increase slow body structure outside detector, you can realize the measurement to fast neutron, because
This has great advantage in volume and weight.
The photoelectric conversion part used in this application example is photomultiplier, followed by divider provides for photomultiplier
Operating voltage.
Claims (10)
- A kind of 1. neutron composite detecting device, it is characterised in that：Including aluminum hull (1), magnesia bisque (2), plastic scintillant (3)、6LiI (Eu) scintillator (4), optocoupler mixture (5), fluid sealant (6) and quartz glass (7)；The aluminum hull (1) is cylindrical shape, for lucifuge and support；The magnesia bisque (2) is uniformly arranged on the madial wall of aluminum hull (1), for reflecting passage of scintillation light；The plastic scintillant (3) is tubular structure, arranged on the inner side of magnesia bisque (2)；Described6LiI (Eu) scintillator (4) is solid cylinder, arranged on the inner side of plastic scintillant (3), and and plastic scintillant (3) fit closely；The magnesia bisque (2), plastic scintillant (3) and6The upper surface of LiI (Eu) scintillator (4) is by coating one layer Optocoupler mixture (5) is coupled with quartz glass (7).In the upper surface of aluminum hull (1) by setting a circle fluid sealant (6) to fix aluminum hull (1) and quartz glass (7) sealing.
- A kind of 2. neutron composite detecting device as claimed in claim 1, it is characterised in that：The aluminum hull (1), magnesia powder Layer (2), plastic scintillant (3) and6LiI (Eu) scintillator (4) is coaxial.
- A kind of 3. neutron composite detecting device as claimed in claim 2, it is characterised in that：The aluminum hull (1), magnesia powder Layer (2), plastic scintillant (3) and6The upper surface of LiI (Eu) scintillator (4) is coplanar.
- A kind of 4. neutron composite detecting device as claimed in claim 3, it is characterised in that：The thickness of the aluminum hull (1) is 0.5mm。
- A kind of 5. neutron composite detecting device as claimed in claim 4, it is characterised in that：The magnesia bisque (2) Thickness is 1mm.
- A kind of 6. neutron composite detecting device as claimed in claim 5, it is characterised in that：The plastic scintillant (3) with6LiI (Eu) scintillator (4) is coupled by silicone oil.
- A kind of 7. neutron composite detecting device as claimed in claim 6, it is characterised in that：The optocoupler mixture (5) is silicon Oil.
- A kind of 8. neutron detector based on neutron composite detecting device described in claim 7, it is characterised in that：The neutron Composite detecting device is coupled with photoelectric conversion device by silicone oil, subsequently connects electronics circuit.
- A kind of 9. neutron detector as claimed in claim 8, it is characterised in that：It is equipped with outside the photoelectric conversion device Lucifuge shell.
- A kind of 10. neutron detector as claimed in claim 9, it is characterised in that：The neutron detector can measure soon Neutron, and slow neutron can be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711204187.7A CN107966727B (en) | 2017-11-27 | 2017-11-27 | Neutron composite detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711204187.7A CN107966727B (en) | 2017-11-27 | 2017-11-27 | Neutron composite detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107966727A true CN107966727A (en) | 2018-04-27 |
| CN107966727B CN107966727B (en) | 2024-06-11 |
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ID=61998846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711204187.7A Active CN107966727B (en) | 2017-11-27 | 2017-11-27 | Neutron composite detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107966727B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109613602A (en) * | 2018-12-25 | 2019-04-12 | 中国辐射防护研究院 | A kind of method of indium-doped glass measurement neutron |
| CN111025376A (en) * | 2019-12-26 | 2020-04-17 | 中广核久源（成都）科技有限公司 | Detector for measuring fast neutron and fast response and high detection efficiency |
| CN112908498A (en) * | 2021-03-30 | 2021-06-04 | 陕西卫峰核电子有限公司 | Irradiation-resistant slowing shielding device and assembling method thereof |
| CN114994743A (en) * | 2022-06-14 | 2022-09-02 | 西北核技术研究所 | Fast neutron time spectrum detection method and device |
Citations (10)
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|---|---|---|---|---|
| JPH09304304A (en) * | 1996-05-17 | 1997-11-28 | General Sekiyu Kk | Void fraction measuring device |
| RU2189057C2 (en) * | 2000-11-13 | 2002-09-10 | Уральский государственный технический университет | Scintillation detector of neutron and gamma radiation |
| RU2259573C1 (en) * | 2004-03-23 | 2005-08-27 | ГОУ ВПО Уральский государственный технический университет-УПИ | Scintillation detector for fast and thermal neutrons |
| RU2272301C1 (en) * | 2004-11-16 | 2006-03-20 | ГОУ ВПО Уральский государственный технический университет-УПИ | Scintillating neutron detector |
| US20070069146A1 (en) * | 2005-03-30 | 2007-03-29 | Ut-Battelle, Llc | Fiber optic thermal/fast neutron and gamma ray scintillation detector |
| CN201589866U (en) * | 2010-01-19 | 2010-09-22 | 上海新漫传感技术研究发展有限公司 | High-sensitivity neutron detector |
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| CN106094003A (en) * | 2016-05-20 | 2016-11-09 | 同济大学 | A kind of photonic crystal with composite structure scintillator |
| CN207611152U (en) * | 2017-11-27 | 2018-07-13 | 中核控制系统工程有限公司 | A kind of neutron composite detecting device |
-
2017
- 2017-11-27 CN CN201711204187.7A patent/CN107966727B/en active Active
Patent Citations (10)
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| JPH09304304A (en) * | 1996-05-17 | 1997-11-28 | General Sekiyu Kk | Void fraction measuring device |
| RU2189057C2 (en) * | 2000-11-13 | 2002-09-10 | Уральский государственный технический университет | Scintillation detector of neutron and gamma radiation |
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| US20070069146A1 (en) * | 2005-03-30 | 2007-03-29 | Ut-Battelle, Llc | Fiber optic thermal/fast neutron and gamma ray scintillation detector |
| CN201589866U (en) * | 2010-01-19 | 2010-09-22 | 上海新漫传感技术研究发展有限公司 | High-sensitivity neutron detector |
| CN103185894A (en) * | 2011-12-28 | 2013-07-03 | 同方威视技术股份有限公司 | Fast neutron detector |
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| Title |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109613602A (en) * | 2018-12-25 | 2019-04-12 | 中国辐射防护研究院 | A kind of method of indium-doped glass measurement neutron |
| CN111025376A (en) * | 2019-12-26 | 2020-04-17 | 中广核久源（成都）科技有限公司 | Detector for measuring fast neutron and fast response and high detection efficiency |
| CN112908498A (en) * | 2021-03-30 | 2021-06-04 | 陕西卫峰核电子有限公司 | Irradiation-resistant slowing shielding device and assembling method thereof |
| CN114994743A (en) * | 2022-06-14 | 2022-09-02 | 西北核技术研究所 | Fast neutron time spectrum detection method and device |
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| Publication number | Publication date |
|---|---|
| CN107966727B (en) | 2024-06-11 |
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