GB1159781A - A Device for Detecting Uranium in the Atmosphere. - Google Patents

A Device for Detecting Uranium in the Atmosphere.

Info

Publication number
GB1159781A
GB1159781A GB32450/66A GB3245066A GB1159781A GB 1159781 A GB1159781 A GB 1159781A GB 32450/66 A GB32450/66 A GB 32450/66A GB 3245066 A GB3245066 A GB 3245066A GB 1159781 A GB1159781 A GB 1159781A
Authority
GB
United Kingdom
Prior art keywords
strip
air
samples
uranium
filter
Prior art date
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.)
Expired
Application number
GB32450/66A
Inventor
Claude Lafaille
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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.)
Filing date
Publication date
Application filed by Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of GB1159781A publication Critical patent/GB1159781A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T7/00—Details of radiation-measuring instruments
    • G01T7/02—Collecting means for receiving or storing samples to be investigated and possibly directly transporting the samples to the measuring arrangement; particularly for investigating radioactive fluids
    • G01T7/04—Collecting means for receiving or storing samples to be investigated and possibly directly transporting the samples to the measuring arrangement; particularly for investigating radioactive fluids by filtration

Abstract

1,159,781. Measuring atmospheric radioactivity. COMMISSARIAT A L'ENERGIE ATOMIQUE. July 19, 1966 [July 30, 1965], No. 32450/66. Heading G1A. Uranium in the atmosphere is detected by programme controlled means for sucking samples of air through a filter, and moving the filter to a radiation detector which distinguishes uranium from radon by detecting the 185KeV gamma peak of U235 or the 4À2 to 4À7 MeV alpha peaks of U234, U235 and U238. Samples of air are drawn from a number of pipes in sequence under the control of a programmer actuating electromagnetic valves in fluid lines controlling pneumatic valves in the pipes. The samples are drawn into a measuring head at 10, Fig. 2, by suction applied at 102. The samples fill an annular member 114 in air-tight contact with a filter strip 62 so that radio-active particles in the air are deposited on the strip, as the air passes to outlet 102. The radio-activity which collects on the strip is measured by a scintillation counter 44, the output of which is fed to a pulse height analyzer which counts only pulses due to uranium and ignores pulses due to natural radio-activity (e.g. of radon). After each measurement, cam 90 lifts the annular member 114 clear of the strip 62 and motor 100 winds a fresh length of strip under the scintillator 44.
GB32450/66A 1965-07-30 1966-07-19 A Device for Detecting Uranium in the Atmosphere. Expired GB1159781A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR26799A FR1467039A (en) 1965-07-30 1965-07-30 Method for detecting uranium in the atmosphere and device by applying

Publications (1)

Publication Number Publication Date
GB1159781A true GB1159781A (en) 1969-07-30

Family

ID=8585757

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32450/66A Expired GB1159781A (en) 1965-07-30 1966-07-19 A Device for Detecting Uranium in the Atmosphere.

Country Status (7)

Country Link
BE (1) BE683787A (en)
CH (1) CH465071A (en)
DE (1) DE1598276A1 (en)
ES (1) ES329659A1 (en)
FR (1) FR1467039A (en)
GB (1) GB1159781A (en)
LU (1) LU51660A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013135938A1 (en) * 2012-03-16 2013-09-19 Universitat Rovira I Virgili Station for identifying and measuring environmental gamma radiation in real time by means of spectrometry on a paper filter

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2456331A1 (en) * 1979-05-11 1980-12-05 Commissariat Energie Atomique Detector for sampling and testing radioactive aerosols in atmos. - incorporates trapping filter covering opening in detector chamber wall with simple release mechanism for replacement
CN111806331B (en) * 2020-07-21 2023-06-27 北京华瑞核安科技股份有限公司 High-purity germanium spectrometer mounting structure of passenger car mobile laboratory
CN112987117B (en) * 2021-02-08 2022-07-29 东华理工大学 Uranium ore quantitative conversion coefficient solving method based on natural gamma energy spectrum logging multi-characteristic peak combination

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013135938A1 (en) * 2012-03-16 2013-09-19 Universitat Rovira I Virgili Station for identifying and measuring environmental gamma radiation in real time by means of spectrometry on a paper filter

Also Published As

Publication number Publication date
ES329659A1 (en) 1967-08-16
DE1598276A1 (en) 1971-04-29
CH465071A (en) 1968-11-15
BE683787A (en) 1966-12-16
LU51660A1 (en) 1966-09-28
FR1467039A (en) 1967-01-27

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Legal Events

Date Code Title Description
416 Proceeding under section 16 patents act 1949
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PLNP Patent lapsed through nonpayment of renewal fees