CN1032833C - Neutron and gamma ray radiation shielding material - Google Patents
Neutron and gamma ray radiation shielding material Download PDFInfo
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- CN1032833C CN1032833C CN 92114783 CN92114783A CN1032833C CN 1032833 C CN1032833 C CN 1032833C CN 92114783 CN92114783 CN 92114783 CN 92114783 A CN92114783 A CN 92114783A CN 1032833 C CN1032833 C CN 1032833C
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- Prior art keywords
- neutron
- shielding material
- gamma
- ray radiation
- radiation shielding
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- Expired - Fee Related
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- 239000000463 material Substances 0.000 title claims abstract description 29
- 230000005855 radiation Effects 0.000 title claims abstract description 28
- 230000005251 gamma ray Effects 0.000 title claims abstract description 27
- -1 polyethylene Polymers 0.000 claims abstract description 12
- 239000006096 absorbing agent Substances 0.000 claims abstract description 8
- 239000000126 substance Substances 0.000 claims abstract description 6
- 239000004743 Polypropylene Substances 0.000 claims abstract description 5
- 229920001155 polypropylene Polymers 0.000 claims abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 4
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 4
- 239000010439 graphite Substances 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 12
- 239000007822 coupling agent Substances 0.000 claims description 10
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims description 8
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 claims description 6
- 239000012778 molding material Substances 0.000 claims description 5
- GEZAXHSNIQTPMM-UHFFFAOYSA-N dysprosium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Dy+3].[Dy+3] GEZAXHSNIQTPMM-UHFFFAOYSA-N 0.000 claims description 4
- MAYVZUQEFSJDHA-UHFFFAOYSA-N 1,5-bis(methylsulfanyl)naphthalene Chemical compound C1=CC=C2C(SC)=CC=CC2=C1SC MAYVZUQEFSJDHA-UHFFFAOYSA-N 0.000 claims description 3
- 229910052582 BN Inorganic materials 0.000 claims description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 3
- JHXKRIRFYBPWGE-UHFFFAOYSA-K bismuth chloride Chemical compound Cl[Bi](Cl)Cl JHXKRIRFYBPWGE-UHFFFAOYSA-K 0.000 claims description 3
- 229910000416 bismuth oxide Inorganic materials 0.000 claims description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 3
- 239000004327 boric acid Substances 0.000 claims description 3
- 229910052810 boron oxide Inorganic materials 0.000 claims description 3
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 claims description 3
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims description 3
- QGXMZGYYAAPYRV-UHFFFAOYSA-H dysprosium(3+);tricarbonate Chemical compound [Dy+3].[Dy+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O QGXMZGYYAAPYRV-UHFFFAOYSA-H 0.000 claims description 3
- 229940075613 gadolinium oxide Drugs 0.000 claims description 3
- 229910001938 gadolinium oxide Inorganic materials 0.000 claims description 3
- CMIHHWBVHJVIGI-UHFFFAOYSA-N gadolinium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Gd+3].[Gd+3] CMIHHWBVHJVIGI-UHFFFAOYSA-N 0.000 claims description 3
- 229940046892 lead acetate Drugs 0.000 claims description 3
- DSSXKBBEJCDMBT-UHFFFAOYSA-M lead(2+);octanoate Chemical compound [Pb+2].CCCCCCCC([O-])=O DSSXKBBEJCDMBT-UHFFFAOYSA-M 0.000 claims description 3
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims description 3
- 229910052808 lithium carbonate Inorganic materials 0.000 claims description 3
- 229910052580 B4C Inorganic materials 0.000 claims description 2
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical group B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 claims description 2
- 229920001903 high density polyethylene Polymers 0.000 claims description 2
- 239000004700 high-density polyethylene Substances 0.000 claims description 2
- 229910015900 BF3 Inorganic materials 0.000 claims 1
- 229910000380 bismuth sulfate Inorganic materials 0.000 claims 1
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 claims 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims 1
- BEQZMQXCOWIHRY-UHFFFAOYSA-H dibismuth;trisulfate Chemical compound [Bi+3].[Bi+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O BEQZMQXCOWIHRY-UHFFFAOYSA-H 0.000 claims 1
- FLWXWKDFOLALOB-UHFFFAOYSA-H dysprosium(3+);trisulfate Chemical compound [Dy+3].[Dy+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O FLWXWKDFOLALOB-UHFFFAOYSA-H 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 abstract description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 3
- 229910052796 boron Inorganic materials 0.000 abstract description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 abstract 1
- 229910052688 Gadolinium Inorganic materials 0.000 abstract 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract 1
- 239000004698 Polyethylene Substances 0.000 abstract 1
- 229910052788 barium Inorganic materials 0.000 abstract 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052797 bismuth Inorganic materials 0.000 abstract 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 abstract 1
- 229910001385 heavy metal Inorganic materials 0.000 abstract 1
- 229910052744 lithium Inorganic materials 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 230000002285 radioactive effect Effects 0.000 description 11
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 6
- 238000012360 testing method Methods 0.000 description 4
- QXPQVUQBEBHHQP-UHFFFAOYSA-N 5,6,7,8-tetrahydro-[1]benzothiolo[2,3-d]pyrimidin-4-amine Chemical compound C1CCCC2=C1SC1=C2C(N)=NC=N1 QXPQVUQBEBHHQP-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 description 2
- RQXZRSYWGRRGCD-UHFFFAOYSA-H gadolinium(3+);tricarbonate Chemical compound [Gd+3].[Gd+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O RQXZRSYWGRRGCD-UHFFFAOYSA-H 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005453 pelletization Methods 0.000 description 2
- 229910052695 Americium Inorganic materials 0.000 description 1
- FWVXPXXVUIUUHU-UHFFFAOYSA-N [B].C(O)(O)=O Chemical compound [B].C(O)(O)=O FWVXPXXVUIUUHU-UHFFFAOYSA-N 0.000 description 1
- LXQXZNRPTYVCNG-UHFFFAOYSA-N americium atom Chemical compound [Am] LXQXZNRPTYVCNG-UHFFFAOYSA-N 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011700 menaquinone-7 Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The neutron and gamma ray radiation shielding material is composed of any one or more of polyethylene or polypropylene series polymers, at least one of graphite or compounds containing abstraction element atoms as a fast neutron moderator, at least one of compounds containing boron, lithium or gadolinium element atoms as a slow neutron absorber, at least one of elementary substances or compounds containing heavy metal element atoms such as lead, bismuth and barium and titanate or silane coupling agents as a gamma ray radiation shielding substance, wherein the fast neutron moderator is 1-40%, the slow neutron absorber is 1-9%, the gamma ray radiation shielding substance is 5-40%, the coupling is 0.5-3%, and the balance is a molding substance.
Description
The present invention relates to a kind of neutron and gamma-ray radiation shielding material of mouldable moulding.
Along with the widespread use of nuclear radiation, employed radioactive source kind is more and more, and pattern is variation gradually, and source strength is also increasing.Particularly the first class of employed radioactivity prospecting in use needs roving radioactive source in the position in source in the exploration of image-stone oil, human body is pressed close to radioactive source and is easy to health is damaged when picking and placeing, and also makes the operating personnel produce a kind of nervous psychology simultaneously and is prone to accidents.In order to prevent that human body from coming to harm, guarantee the safety of operation, use the shielding protection instrument of making by radiation shielding material pick and place with the moving radiographic source be necessary.But, the shielding properties of existing neutron and gamma-ray radiation shielding material is single, the safety appliance of making can not shield neutron and gamma-rays radiation simultaneously, the fast neutron shielding properties of particularly existing neutron irradiation shielding material is relatively poor, so the appliance load of making is big, heaviness is unfavorable for using.
The purpose of this invention is to provide a kind of have simultaneously neutron irradiation and gamma-ray radiation shielding performance, the various radioactive source apparatus of picking and placeing are made in mouldable moulding, shielding properties is good, and the appliance load of making is light, neutron of being convenient to manipulate and gamma-ray radiation shielding material.
Neutron and gamma-ray radiation shielding material molded adopt in high radiation-resistant high density polyethylene of hydrogen atom density and the polypropylene series polymkeric substance any one or multiple.
The slow neutron absorbing agent adopts in boron carbide, boron nitride, boric acid, boron oxide, lithium fluoride, lithium bromide, lithium carbonate or gadolinium oxide, gadolinium carbonate and the Digadolinium trisulfate one or more, and gamma ray shielding adopts one or more in lead, massicot, lead octoate, lead acetate, bismuth oxide, bismuthic oxide, bismuth chloride and the barium sulphate.
The dispersion of shielding material in molded for the benefit of with mix, employed coupling agent is one or more compounds in titanate ester or the silane coupling agent.
In order to make neutron and gamma-ray radiation shielding material have good shielding properties, be added with fast neutron moderator in the shielding material, the fast neutron moderator that uses is in graphite or dysprosium carbonate, dysprosia, dysprosium chloride and the dysprosium nitrate one or more.
The becoming to be grouped into and be of neutron and gamma-ray radiation shielding material: fast neutron moderator is that 1-40% (potpourri is heavy) slow neutron absorbing agent is that 1 one 9% (potpourri is heavy), gamma ray shielding agent are 5-40% (potpourri is heavy), coupling agent is 0.5-3% (potpourri is heavy), and surplus is a molded.
In order to guarantee that shielding material has good stable radiation shield performance and excellent physical and mechanical properties and material quality, the comparatively ideal composition of neutron and gamma-ray radiation shielding material is: fast neutron moderator is that 2-20% (mixture weight) slow neutron absorbing agent is 2-8% (mixture weight), the gamma ray shielding agent is 10-20% (potpourri is heavy), and coupling agent is that 1-2.5% (potpourri is heavy) surplus is a molded.
When utilizing neutron provided by the invention and gamma-ray radiation shielding material to make apparatus, after taking by weighing material in each material ratio it is mixed, melting mixing is once made the molding material that mixes to twice in the twin-screw mixer machine then, utilizes molding material can moldedly make required apparatus.
The fast neutron that neutron and gamma-ray radiation shielding material are emitted radioactive source carries out slowing down and is together absorbed by the slow neutron absorbing agent in the material with slow neutron that radioactive source is emitted; thereby improved neutron irradiation shielding protection performance; neutron and the gamma-ray radiation shielding that can simultaneously radioactive source be emitted when using neutron and x radiation x shielding apparatus moving radiographic source; can reduce the thickness of apparatus; reduce the weight of apparatus, be convenient to manipulate.
Embodiment 1
Polypropylene (M130-40) 71 parts (weight), dysprosium carbonate, dysprosia, any one or multiple 10 parts (weight) in dysprosium chloride or the dysprosium nitrate, 8 parts of boron carbides (weight), 10 parts in barium sulphate (weight), 1 part of titanate coupling agent (weight), above-mentioned mixing of materials is evenly after twin-screw mixer machine mixing a pelletizing to the secondary, various mixtures of materials evenly distribute in the pelletizing after tested, polypropylene is external phase, be made into molded pick and place the radioactive source apparatus after, when picking and placeing oil radioactivity well logging probe, measure, radiation shield rate to 18 Curie's americium beryllium neutron source neutrons is 58-63%, gamma ray shielding rate 31-33%, testing tool is that Britain produces MK-7 type neutron dose equivalent rates instrument and PDRI type gamma-rays dose equivalent rate instrument, source rod axis and source active centre are 30 ° to the detector line of centres angle during test, 1 meter of detector centre distance source active centre.
Embodiment 2:
Tygon (MI is 26) 75 parts (weight), graphite 2 minutes (weight), carbonic acid boron, in boron nitride, boron oxide, boric acid, lithium bromide, lithium carbonate, gadolinium oxide, Digadolinium trisulfate or the gadolinium carbonate any one or multiple 2 parts (weight), 20 parts in lead powder (weight), titanate coupling agent 1 part (weight), make by the condition of embodiment 1 and method and to pick and place radioactive source apparatus, the radioactive source that adopts embodiment 1 and testing tool and condition is measured, the neutron irradiation shielding rate is 45-60%, and the gamma ray shielding rate is 40 one 52%.
Embodiment 3:
Tygon (M11.9) 59 (weight), dysprosia 20 parts of (weight), lithium bromide 5 parts of (weight), lead powder, massicot, lead octoate, lead acetate, bismuth oxide, bismuthic oxide, 15 parts of in bismuth chloride and the barium sulphate etc. one or more (weight), 1 part of silane coupling agent (weight), make by the condition of embodiment 1 and method and to pick and place the source apparatus, adopt radioactive source testing tool and the condition of embodiment 1 to measure, the neutron irradiation shielding rate is 59-61%, and the gamma ray shielding rate is 35-48%.
Claims (2)
1, a kind of neutron and sub-x radiation x shielding material, the molding material is a high density polyethylene, at least a in the polypropylene series polymkeric substance, the slow neutron absorbing agent is a boron carbide, boron nitride, boric acid, boron oxide, boron fluoride, lithium bromide, lithium carbonate, gadolinium oxide, carbonic acid rolls, at least a in the Digadolinium trisulfate, the slow neutron absorbing agent is 1-9% of a mixture weight, be generally 2-20%, it is characterized in that fast neutron moderator is arranged, gamma-ray radiation shielding material and coupling agent, fast neutron moderator is a graphite, dysprosia, dysprosium chloride, dysprosium sulfate, at least a in the dysprosium carbonate, the gamma-ray radiation shielding material is plumbous, massicot, lead octoate, lead acetate, bismuth oxide, bismuthic oxide, bismuth chloride, at least a in the bismuth sulfate, coupling agent is a titante coupling agent, at least a in the silane coupling agent, fast neutron moderator is 1-40% of a mixture weight, the gamma-ray radiation shielding material is 5-40% of a mixture weight, coupling agent is 0.5-3% of a mixture weight, and surplus is the molding material.
2, by described neutron of claim 1 and gamma ray shielding material, it is characterized in that said fast neutron moderator is 2-20% of a mixture weight, gamma-ray radiation shielding material is 10-20% of a mixture weight, coupling agent is that potpourri is 1-2.5% of a mixture weight, and surplus is the molding material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92114783 CN1032833C (en) | 1992-12-26 | 1992-12-26 | Neutron and gamma ray radiation shielding material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92114783 CN1032833C (en) | 1992-12-26 | 1992-12-26 | Neutron and gamma ray radiation shielding material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1089055A CN1089055A (en) | 1994-07-06 |
| CN1032833C true CN1032833C (en) | 1996-09-18 |
Family
ID=4947105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92114783 Expired - Fee Related CN1032833C (en) | 1992-12-26 | 1992-12-26 | Neutron and gamma ray radiation shielding material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1032833C (en) |
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-
1992
- 1992-12-26 CN CN 92114783 patent/CN1032833C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1089055A (en) | 1994-07-06 |
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