CN109085640A - A kind of packaging method of organic scintillation crystal - Google Patents
A kind of packaging method of organic scintillation crystal Download PDFInfo
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- CN109085640A CN109085640A CN201810950793.1A CN201810950793A CN109085640A CN 109085640 A CN109085640 A CN 109085640A CN 201810950793 A CN201810950793 A CN 201810950793A CN 109085640 A CN109085640 A CN 109085640A
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- pack case
- scintillation crystal
- organic scintillation
- organic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
Abstract
The invention discloses a kind of packaging method of organic scintillation crystal, which includes silicon rubber casting, organic scintillation crystal is placed, vacuum evacuation forms, room temperature radiation curing.The packaging method of organic scintillation crystal of the invention can save the procedure of processing of organic scintillation crystal, reduce the reduction because of the processing organic scintillation crystal volume of bring and the reduction of fluorescence intensity, the fixation of organic scintillation crystal not only may be implemented in the silicon rubber of casting, moreover it is possible to enhance the shock resistance of organic scintillation crystal.
Description
Technical field
The invention belongs to radiation protection and field of detecting, and in particular to a kind of packaging method of organic scintillation crystal.
Background technique
Organic scintillation crystal has excellent photoelectric property, and faster decay of luminescence and higher luminous efficiency make its centering
Sub, gamma-ray detection efficient is higher.And there is some organic scintillation crystals excellent neutron/gamma pulse shape to differentiate
Ability has good application prospect in the detection of neutron.However the growth conditions of organic scintillation crystal is all harsher, to give birth to
The perfect cystal for growing large volume high quality is relatively difficult, is still a Research Challenges in the field.
Solwution method is the common method of organic scintillation crystal growth, and solwution method is first by the component of crystal (solute)
It is dissolved in another solution (solvent), then by changing the state parameters such as temperature, vapour pressure, obtains saturated solution, finally make
Solute is precipitated from solution and the method that forms crystal.Often size is smaller and has for organic scintillation crystal of solution growth
Irregular shape generally requires to be sealed in organic scintillation crystal in cylindrical pack case, have currently, carrying out radiation detection
Machine scintillation crystal needs to be processed into cylinder.Since the interaction force between organic molecule is weaker, organic scintillation crystal is frangible, adds
Work difficulty is big, and the yield rate of processing is low, and irregular corner angle can be all cut away in process, makes effective body of crystal
Product substantially reduces, and fluorescence intensity is decreased obviously, and detection efficient can also decrease.
Currently, need to develop a kind of packaging method of novel organic scintillation crystal used suitable for radiation detection.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of packaging methods of organic scintillation crystal.
The packaging method of organic scintillation crystal of the invention the following steps are included:
A. silicon rubber is poured
Pack case by inner wall with reflecting layer is steadily placed, and raw-silastic continuously, the body of raw-silastic continuously are poured into pack case
Product is slightly larger than the volume of pack case and the volume differences of organic scintillation crystal；
B. organic scintillation crystal is placed
Organic scintillation crystal is placed in pack case in raw-silastic continuously；
C. vacuum evacuation molding
Raw-silastic continuously in pack case is evacuated to and excludes bubble completely；Pack case is moved in vacuum oven, is closed
It closes vacuum oven and is vacuumized at 60 DEG C or less, confirm that organic scintillation crystal sink and is steadily embedded in raw-silastic continuously；
The upper surface covering protection film of pack case continues to be evacuated to exclusion bubble completely；Pack case is taken out, removal is overflowed in pack case
Raw-silastic continuously on outer wall；
D. room temperature radiation curing
Pack case is subjected to whole plastic packaging, while ensuring that pack case bottom surface is steady, pack case is placed in gamma radiation field, in room
The lower irradiation of temperature is fully cured up to the silicon rubber in pack case, then, pack case is taken out out of gamma radiation field, removes packaging
The plastic packaging of shell.
The raw-silastic continuously is methyl vinyl silicon kautschuk or methyl vinyl phenyl silicon rubber.
The pack case is cylindrical shape, and one end is closed end, and one end is open end.
The pack case inner wall is covered with reflecting layer, and reflection layer surface is smooth；The material in the reflecting layer is poly- four
One of vinyl fluoride, titanium dioxide, magnesia or aluminum oxide.
Organic scintillation crystal is the monocrystal by solution growth, the surfacing light of organic scintillation crystal
Sliding, surface area is larger and the preferable one side of scintillation properties is placed in pack case upward.
The protective film is transparent optical thin film, and the size of optical thin film and the open end size of pack case are identical,
The material of optical thin film is optical glass or colourless transparent plastic.
Raw-silastic continuously in the packaging method of organic scintillation crystal of the invention does not add in room temperature Radiation Curing
Add catalyst, avoids the metallic element contained in catalyst and ray generates secondary reaction；Organic scintillation crystal of the invention
Packaging method in the optical thin film chosen it is good to the light light transmission near crystal launch wavelength, and there is certain hardness
And scratching resistent property, protection silicon rubber will not be bonded dust, not be scratched and damage.
The packaging method of organic scintillation crystal of the invention eliminates the procedure of processing of organic scintillation crystal, reduces because of processing
Organic flashing not only may be implemented in the reduction of the organic scintillation crystal volume of bring and the reduction of fluorescence intensity, the silicon rubber of casting
The fixation of crystal, moreover it is possible to enhance the shock resistance of organic scintillation crystal.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the encapsulation finished product of the packaging method of organic scintillation crystal of the invention；
In figure, organic 5 silicon rubber of scintillation crystal in 1. protective film, 2. pack case, 3. reflecting layer 4..
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawings and examples.
Embodiment 1
The present embodiment is the encapsulation of 9,10- diphenylanthrancene monocrystal.
A. silicon rubber is poured
After cylinder-shaped stainless steel material pack case cleaning drying of the inner wall with titanium deoxid film, place steadily, thereto
It is poured the methyl vinyl silicon kautschuk of certain volume, the volume of raw rubber is slightly larger than the volume of pack case and the volume of crystal
Difference.
B. organic scintillation crystal is placed
9,10- diphenylanthrancene monocrystalline level is placed on raw-silastic continuously top dead centre position, and ensures 9,10- diphenylanthrancene
(1,1, -1) crystal face of monocrystalline is upward and parallel with pack case upper surface.
C. vacuum evacuation molding
The pack case that inside is contained with raw-silastic continuously and 9,10- diphenylanthrancene monocrystalline is carefully translated and is placed in vacuum oven
It is interior, vacuum oven is opened after being to slowly warm up to 60 DEG C hereinafter, vacuumizing 5h, and confirm that 9,10- diphenylanthrancene monocrystalline sink simultaneously
Steadily it is embedded in raw-silastic continuously；It is flat on a thickness of the transparent K9 optical glass sheet of 0.5mm as protective film at this point, taking
Pack case upper surface is placed on again in pack case vacuum oven, is vacuumized at 60 DEG C or less, is taken out after 1h, will be overflowed
The raw-silastic continuously of pack case outer surface carefully removes.
D. room temperature radiation curing
By pack case entirety plastic packaging, while ensuring that pack case bottom surface is steady, be placed in gamma radiation field, irradiation keeps it total at room temperature
Raw-silastic continuously is fully cured after absorbed dose reaches 50kGy, takes out pack case and removes the plastic packaging of pack case, that is, completes 9,10-
The structure of the encapsulation of diphenylanthrancene monocrystal, the encapsulation finished product of acquisition is as shown in Figure 1.
The methyl vinyl silicon kautschuk of the present embodiment could alternatively be methyl vinyl phenyl silicon rubber, reflecting layer
Material may be replaced by one of polytetrafluoroethylene (PTFE), magnesia or aluminum oxide, and the material of optical thin film can also replace
It is changed to colourless transparent plastic.
The present invention is not limited to above-mentioned specific embodiment, person of ordinary skill in the field from the above idea,
Without creative labor, the various transformation made are within the scope of the present invention.
Claims (6)
1. a kind of packaging method of organic scintillation crystal, which comprises the following steps:
A. silicon rubber is poured
Pack case by inner wall with reflecting layer is steadily placed, and raw-silastic continuously, the body of raw-silastic continuously are poured into pack case
Product is slightly larger than the volume of pack case and the volume differences of organic scintillation crystal；
B. organic scintillation crystal is placed
Organic scintillation crystal is placed in pack case in raw-silastic continuously；
C. vacuum evacuation molding
Raw-silastic continuously in pack case is evacuated to and excludes bubble completely；Pack case is moved in vacuum oven, is closed
It closes vacuum oven and is vacuumized at 60 DEG C or less, confirm that organic scintillation crystal sink and is steadily embedded in raw-silastic continuously；
The upper surface covering protection film of pack case continues to be evacuated to exclusion bubble completely；Pack case is taken out, removal is overflowed in pack case
Raw-silastic continuously on outer wall；
D. room temperature radiation curing
Pack case is subjected to whole plastic packaging, while ensuring that pack case bottom surface is steady, pack case is placed in gamma radiation field, in room
The lower irradiation of temperature is fully cured up to the silicon rubber in pack case, then, pack case is taken out out of gamma radiation field, removes packaging
The plastic packaging of shell.
2. the packaging method of organic scintillation crystal according to claim 1, it is characterised in that: the raw-silastic continuously is
Methyl vinyl silicon kautschuk or methyl vinyl phenyl silicon rubber.
3. the packaging method of organic scintillation crystal according to claim 1, it is characterised in that: the pack case is cylinder
Shape, one end are closed end, and one end is open end.
4. the packaging method of organic scintillation crystal according to claim 1, it is characterised in that: the pack case inner wall covers
It is stamped reflecting layer, reflection layer surface is smooth；The material in the reflecting layer is polytetrafluoroethylene (PTFE), titanium dioxide, magnesia or three
One of Al 2 O.
5. the packaging method of organic scintillation crystal according to claim 1, it is characterised in that: organic scintillation crystal
For by the monocrystal of solution growth, the smooth surface of organic scintillation crystal, surface area is larger and scintillation properties are preferable
One side be placed in pack case upward.
6. the packaging method of organic scintillation crystal according to claim 1, it is characterised in that: the protective film is transparent
Optical thin film, the size of optical thin film and the open end size of pack case are identical, the material of optical thin film be optical glass or
Colourless transparent plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810950793.1A CN109085640B (en) | 2018-08-21 | 2018-08-21 | Packaging method of organic scintillation crystal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810950793.1A CN109085640B (en) | 2018-08-21 | 2018-08-21 | Packaging method of organic scintillation crystal |
Publications (2)
| Publication Number | Publication Date |
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| CN109085640A true CN109085640A (en) | 2018-12-25 |
| CN109085640B CN109085640B (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810950793.1A Active CN109085640B (en) | 2018-08-21 | 2018-08-21 | Packaging method of organic scintillation crystal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114779392A (en) * | 2022-06-23 | 2022-07-22 | 江苏欧辉照明灯具有限公司 | Adjustable lamp light guide plate processing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090261262A1 (en) * | 2008-04-17 | 2009-10-22 | Saint-Gobain Ceramics & Plastics, Inc. | Scintillation Detector Reflector |
| CN102016638A (en) * | 2008-05-06 | 2011-04-13 | 圣戈本陶瓷及塑料股份有限公司 | Radiation detector device having an electrically conductive optical interface |
| CN102944891A (en) * | 2012-11-22 | 2013-02-27 | 北京一轻研究院 | Packaging method for cerium-doped halogenated lanthanum scintillation crystal |
| CN204347266U (en) * | 2015-01-21 | 2015-05-20 | 北京玻璃研究院 | The moistureproof encapsulating structure of hydroscopicity scintillation crystal |
-
2018
- 2018-08-21 CN CN201810950793.1A patent/CN109085640B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090261262A1 (en) * | 2008-04-17 | 2009-10-22 | Saint-Gobain Ceramics & Plastics, Inc. | Scintillation Detector Reflector |
| CN102016638A (en) * | 2008-05-06 | 2011-04-13 | 圣戈本陶瓷及塑料股份有限公司 | Radiation detector device having an electrically conductive optical interface |
| CN103336294A (en) * | 2008-05-06 | 2013-10-02 | 圣戈本陶瓷及塑料股份有限公司 | Radiation detector device having an electrically conductive optical interface |
| CN102944891A (en) * | 2012-11-22 | 2013-02-27 | 北京一轻研究院 | Packaging method for cerium-doped halogenated lanthanum scintillation crystal |
| CN204347266U (en) * | 2015-01-21 | 2015-05-20 | 北京玻璃研究院 | The moistureproof encapsulating structure of hydroscopicity scintillation crystal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114779392A (en) * | 2022-06-23 | 2022-07-22 | 江苏欧辉照明灯具有限公司 | Adjustable lamp light guide plate processing device |
| CN114779392B (en) * | 2022-06-23 | 2022-09-06 | 江苏欧辉照明灯具有限公司 | Adjustable lamp light guide plate processing device |
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| CN109085640B (en) | 2022-02-08 |
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Inventor after: Liu Xiuhua Inventor after: Song Hongtao Inventor after: Tan Zhaoyi Inventor after: Lai Caifeng Inventor after: Zhu Tonghua Inventor after: Mu Long Inventor after: Li Yu Inventor before: Liu Xiuhua Inventor before: Song Hongtao Inventor before: Tan Zhaoyi Inventor before: Lai Caifeng Inventor before: Zhu Tonghua Inventor before: Mu Long Inventor before: Li Yu |
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