CA2116252A1 - Electroscope et chambre d'ionisation a condenseur pour la detection de substances radioactives telles que le radon, le thoron, le tritium, les produits de filiation du radon, les gaz emetteurs de rayons beta, les neutrons et les rayons alpha, beta, gamma et x - Google Patents

Electroscope et chambre d'ionisation a condenseur pour la detection de substances radioactives telles que le radon, le thoron, le tritium, les produits de filiation du radon, les gaz emetteurs de rayons beta, les neutrons et les rayons alpha, beta, gamma et x

Info

Publication number: CA2116252A1
Authority: CA; Canada
Prior art keywords: radon; condenser; electroscope; sampling; beta
Prior art date: 1994-02-23
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Abandoned

Application number

CA002116252A

Other languages

English (en)

Inventor

George E. Vandrish

Lyle A. Davidson

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Individual

Original Assignee

Individual

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1994-02-23

Filing date

1994-02-23

Publication date

1995-08-24

1994-02-23 Application filed by Individual filed Critical Individual

1994-02-23 Priority to CA002116252A priority Critical patent/CA2116252A1/fr

1995-08-24 Publication of CA2116252A1 publication Critical patent/CA2116252A1/fr

Status Abandoned legal-status Critical Current

Links

150000002500 ions Chemical class 0.000 title claims abstract description 40
238000005259 measurement Methods 0.000 title claims abstract description 35
230000005855 radiation Effects 0.000 title claims abstract description 35
239000007789 gas Substances 0.000 title claims abstract description 29
229910052704 radon Inorganic materials 0.000 title claims abstract description 24
SYUHGPGVQRZVTB-UHFFFAOYSA-N radon atom Chemical compound [Rn] SYUHGPGVQRZVTB-UHFFFAOYSA-N 0.000 title claims abstract description 24
YZCKVEUIGOORGS-NJFSPNSNSA-N Tritium Chemical compound [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 title claims abstract description 15
229910052722 tritium Inorganic materials 0.000 title claims abstract description 15
XQVKLMRIZCRVPO-UHFFFAOYSA-N 4-[(2-arsonophenyl)diazenyl]-3-hydroxynaphthalene-2,7-disulfonic acid Chemical compound C12=CC=C(S(O)(=O)=O)C=C2C=C(S(O)(=O)=O)C(O)=C1N=NC1=CC=CC=C1[As](O)(O)=O XQVKLMRIZCRVPO-UHFFFAOYSA-N 0.000 title claims abstract description 14
241000679125 Thoron Species 0.000 title claims abstract description 14
239000012857 radioactive material Substances 0.000 title claims description 10
238000005070 sampling Methods 0.000 claims abstract description 31
239000000443 aerosol Substances 0.000 claims abstract description 18
230000007613 environmental effect Effects 0.000 claims abstract description 4
239000000463 material Substances 0.000 claims description 40
238000000034 method Methods 0.000 claims description 34
238000009792 diffusion process Methods 0.000 claims description 26
238000001035 drying Methods 0.000 claims description 26
239000012212 insulator Substances 0.000 claims description 23
238000007600 charging Methods 0.000 claims description 16
239000012080 ambient air Substances 0.000 claims description 14
239000003570 air Substances 0.000 claims description 10
238000013461 design Methods 0.000 claims description 9
239000000835 fiber Substances 0.000 claims description 9
VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
239000010453 quartz Substances 0.000 claims description 7
241000894007 species Species 0.000 claims description 7
239000012528 membrane Substances 0.000 claims description 4
239000011888 foil Substances 0.000 claims description 2
230000004888 barrier function Effects 0.000 claims 1
239000000758 substrate Substances 0.000 claims 1
230000002285 radioactive effect Effects 0.000 abstract description 31
239000002245 particle Substances 0.000 abstract description 10
238000012544 monitoring process Methods 0.000 description 10
238000001514 detection method Methods 0.000 description 6
230000035945 sensitivity Effects 0.000 description 6
230000005251 gamma ray Effects 0.000 description 5
230000002452 interceptive effect Effects 0.000 description 5
229910052751 metal Inorganic materials 0.000 description 5
239000002184 metal Substances 0.000 description 5
230000002035 prolonged effect Effects 0.000 description 5
239000003990 capacitor Substances 0.000 description 4
239000007787 solid Substances 0.000 description 4
230000008859 change Effects 0.000 description 3
239000004020 conductor Substances 0.000 description 3
239000003365 glass fiber Substances 0.000 description 3
230000008569 process Effects 0.000 description 3
229910001220 stainless steel Inorganic materials 0.000 description 3
239000010935 stainless steel Substances 0.000 description 3
239000004809 Teflon Substances 0.000 description 2
229920006362 Teflon® Polymers 0.000 description 2
OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
239000004035 construction material Substances 0.000 description 2
239000002274 desiccant Substances 0.000 description 2
230000000694 effects Effects 0.000 description 2
230000005684 electric field Effects 0.000 description 2
239000011148 porous material Substances 0.000 description 2
239000000941 radioactive substance Substances 0.000 description 2
239000000126 substance Substances 0.000 description 2
ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
229910001369 Brass Inorganic materials 0.000 description 1
229920001875 Ebonite Polymers 0.000 description 1
RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
MPCRDALPQLDDFX-UHFFFAOYSA-L Magnesium perchlorate Chemical compound [Mg+2].[O-]Cl(=O)(=O)=O.[O-]Cl(=O)(=O)=O MPCRDALPQLDDFX-UHFFFAOYSA-L 0.000 description 1
229920000134 Metallised film Polymers 0.000 description 1
239000004698 Polyethylene Substances 0.000 description 1
239000004793 Polystyrene Substances 0.000 description 1
HCWPIIXVSYCSAN-IGMARMGPSA-N Radium-226 Chemical compound [226Ra] HCWPIIXVSYCSAN-IGMARMGPSA-N 0.000 description 1
NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
239000004855 amber Substances 0.000 description 1
LXQXZNRPTYVCNG-YPZZEJLDSA-N americium-241 Chemical compound [241Am] LXQXZNRPTYVCNG-YPZZEJLDSA-N 0.000 description 1
229910052796 boron Inorganic materials 0.000 description 1
239000010951 brass Substances 0.000 description 1
239000000919 ceramic Substances 0.000 description 1
239000012185 ceresin wax Substances 0.000 description 1
239000003795 chemical substances by application Substances 0.000 description 1
238000004891 communication Methods 0.000 description 1
239000000356 contaminant Substances 0.000 description 1
238000011437 continuous method Methods 0.000 description 1
238000005367 electrostatic precipitation Methods 0.000 description 1
239000000945 filler Substances 0.000 description 1
230000004907 flux Effects 0.000 description 1
PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
239000010931 gold Substances 0.000 description 1
229910052737 gold Inorganic materials 0.000 description 1
238000010438 heat treatment Methods 0.000 description 1
230000004941 influx Effects 0.000 description 1
238000011835 investigation Methods 0.000 description 1
229910052743 krypton Inorganic materials 0.000 description 1
DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 description 1
238000012423 maintenance Methods 0.000 description 1
230000007246 mechanism Effects 0.000 description 1
239000010445 mica Substances 0.000 description 1
229910052618 mica group Inorganic materials 0.000 description 1
239000000203 mixture Substances 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000004048 modification Effects 0.000 description 1
230000003287 optical effect Effects 0.000 description 1
239000004033 plastic Substances 0.000 description 1
229920003023 plastic Polymers 0.000 description 1
-1 polyethylene Polymers 0.000 description 1
229920000573 polyethylene Polymers 0.000 description 1
229920002223 polystyrene Polymers 0.000 description 1
238000005086 pumping Methods 0.000 description 1
230000005258 radioactive decay Effects 0.000 description 1
229910052705 radium Inorganic materials 0.000 description 1
HCWPIIXVSYCSAN-UHFFFAOYSA-N radium atom Chemical compound [Ra] HCWPIIXVSYCSAN-UHFFFAOYSA-N 0.000 description 1
230000000717 retained effect Effects 0.000 description 1
239000000741 silica gel Substances 0.000 description 1
229910002027 silica gel Inorganic materials 0.000 description 1
239000011593 sulfur Substances 0.000 description 1
229910052717 sulfur Inorganic materials 0.000 description 1
BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 1
ZCUFMDLYAMJYST-UHFFFAOYSA-N thorium dioxide Chemical compound O=[Th]=O ZCUFMDLYAMJYST-UHFFFAOYSA-N 0.000 description 1
229910003452 thorium oxide Inorganic materials 0.000 description 1
229910052724 xenon Inorganic materials 0.000 description 1
FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1

Classifications

- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/02—Dosimeters
- G01T1/14—Electrostatic dosimeters
- G01T1/142—Charging devices; Read-out devices
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/17—Circuit arrangements not adapted to a particular type of detector
- G01T1/178—Circuit arrangements not adapted to a particular type of detector for measuring specific activity in the presence of other radioactive substances, e.g. natural, in the air or in liquids such as rain water
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T3/00—Measuring neutron radiation
- G01T3/008—Measuring neutron radiation using an ionisation chamber filled with a gas, liquid or solid, e.g. frozen liquid, dielectric
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J47/00—Tubes for determining the presence, intensity, density or energy of radiation or particles

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)

CA002116252A 1994-02-23 1994-02-23 Electroscope et chambre d'ionisation a condenseur pour la detection de substances radioactives telles que le radon, le thoron, le tritium, les produits de filiation du radon, les gaz emetteurs de rayons beta, les neutrons et les rayons alpha, beta, gamma et x Abandoned CA2116252A1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CA002116252A CA2116252A1 (fr)	1994-02-23	1994-02-23	Electroscope et chambre d'ionisation a condenseur pour la detection de substances radioactives telles que le radon, le thoron, le tritium, les produits de filiation du radon, les gaz emetteurs de rayons beta, les neutrons et les rayons alpha, beta, gamma et x

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA002116252A CA2116252A1 (fr)	1994-02-23	1994-02-23	Electroscope et chambre d'ionisation a condenseur pour la detection de substances radioactives telles que le radon, le thoron, le tritium, les produits de filiation du radon, les gaz emetteurs de rayons beta, les neutrons et les rayons alpha, beta, gamma et x

Publications (1)

Publication Number	Publication Date
CA2116252A1 true CA2116252A1 (fr)	1995-08-24

Family

ID=4152955

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002116252A Abandoned CA2116252A1 (fr)	1994-02-23	1994-02-23	Electroscope et chambre d'ionisation a condenseur pour la detection de substances radioactives telles que le radon, le thoron, le tritium, les produits de filiation du radon, les gaz emetteurs de rayons beta, les neutrons et les rayons alpha, beta, gamma et x

Country Status (1)

Country	Link
CA (1)	CA2116252A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2770648A1 (fr) *	1997-11-03	1999-05-07	Commissariat Energie Atomique	Dispositif de detection et de mesure des gaz et des aerosols radioactifs
US6346709B1 (en) *	2000-03-01	2002-02-12	The United States Of America As Represented By The Secretary Of The Army	Alpha, beta, and gamma monitor for measuring concentrations of ionizing radiation emitters in ambient air or other media
CN113484198A (zh) *	2021-06-30	2021-10-08	重庆建安仪器有限责任公司	一种辐射烟云扩散预测系统及方法

1994
- 1994-02-23 CA CA002116252A patent/CA2116252A1/fr not_active Abandoned

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2770648A1 (fr) *	1997-11-03	1999-05-07	Commissariat Energie Atomique	Dispositif de detection et de mesure des gaz et des aerosols radioactifs
WO1999023507A1 (fr) *	1997-11-03	1999-05-14	Commissariat A L'energie Atomique	Dispositif de detection et de mesure des gaz et des aerosols radioactifs
US6346709B1 (en) *	2000-03-01	2002-02-12	The United States Of America As Represented By The Secretary Of The Army	Alpha, beta, and gamma monitor for measuring concentrations of ionizing radiation emitters in ambient air or other media
CN113484198A (zh) *	2021-06-30	2021-10-08	重庆建安仪器有限责任公司	一种辐射烟云扩散预测系统及方法

Legal Events

Date	Code	Title	Description
1994-07-14	EEER	Examination request
1996-08-24	FZDE	Discontinued

Publication	Publication Date	Title
George	1996	State-of-the-art instruments for measuring radon/thoron and their progeny in dwellings-a review
US4853536A (en)	1989-08-01	Ionization chamber for monitoring radioactive gas
JP2010133879A (ja)	2010-06-17	放射線測定装置
US5008540A (en)	1991-04-16	Electret gamma/X-ray low level dosimeter
US5550381A (en)	1996-08-27	Event counting alpha detector
US4800272A (en)	1989-01-24	Environmental gamma-ray and radon detector
EP0601050B1 (fr)	1997-03-05	Detecteur d'ecoulement gazeux du type geiger-mueller et procede de contr le d'un rayonnement ionisant
CA2116252A1 (fr)	1995-08-24	Electroscope et chambre d'ionisation a condenseur pour la detection de substances radioactives telles que le radon, le thoron, le tritium, les produits de filiation du radon, les gaz emetteurs de rayons beta, les neutrons et les rayons alpha, beta, gamma et x
Kotrappa et al.	1982	Passive measurement of radon and thoron using TLD or SSNTD on electrets
Costa-Ribeiro et al.	1969	A radon detector suitable for personnel or area monitoring
Chambaudet et al.	1997	Study of the response of silicon detectors for alpha particles
JP2001517802A (ja)	2001-10-09	ガス中におけるトリチウムを含む核種の選択的モニタ方法
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Baltzer et al.	1992	A pulse-counting ionization chamber for measuring the radon concentration in air
George	1977	Passive environmental radon monitor
Miles	2004	Methods of radon measurement and devices
US6346709B1 (en)	2002-02-12	Alpha, beta, and gamma monitor for measuring concentrations of ionizing radiation emitters in ambient air or other media
Howard et al.	1990	A high-sensitivity detection system for radon in air
Surette et al.	1993	Evaluation of electret ion chamber for tritium measurement
US3566115A (en)	1971-02-23	Radiation dosimeter comprising a gas-evolving material
RU2010265C1 (ru)	1994-03-30	Способ определения концентрации радона и его дочерних продуктов в воздухе и устройство для его осуществления
Tommasino	1990	The present state of track etch processes in radiation dosimetry
Pretzsch et al.	1987	Radon registration with an electret diffusion chamber
JP2004354216A (ja)	2004-12-16	放射線測定装置