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Rapid determination of radon daughter concentrations

Technical Report:

Abstract

A technical evaluation of four radon 222 progeny measuring instruments has been conducted. The evaluation has been carried out under laboratory controlled conditions and at several locations in an underground uranium mine. The laboratory evaluation consisted of a thorough study of the behaviour and performance of the instruments under a wide variety of environmental conditions such as radon 222 gas concentration, radon 222 progeny concentration, temperature, relative humidity, aerosol concentration, and gamma-field exposure. The four instruments tested were: the Pylon WL-1000C, the MDA IWLM-811, the MIMIL IIM, and the EDA WLM-30. The readings of the instruments were compared with a widely accepted radon 222 progeny concentration measuring method, namely, the Thomas-Tsivoglou method. Two variables affected two instruments significantly, namely, under high aerosol concentration conditions, one of the instruments (EDA WLM-30) ceased to operate because of filter loading. The other variable was gamma-field exposure which affected another instrument (MDA-811) adversely. The instruments were rated according to several criteria. The overall best performer was the MIMIL IIM, although other instruments also fared quite well under a variety of experimental conditions.
Authors:
Bigu, J [1] 
  1. Department of Energy, Mines and Resources, Elliot Lake, ON (Canada). Elliot Lake Lab.
Publication Date:
Aug 01, 1990
Product Type:
Technical Report
Report Number:
INFO-0374
Reference Number:
SCA: 560101; PA: AIX-24:006220; SN: 93000931278
Resource Relation:
Other Information: PBD: Aug 1990
Subject:
61 RADIATION PROTECTION AND DOSIMETRY; RADON 222; ALPHA DOSIMETRY; AEROSOLS; BETA DOSIMETRY; CALIBRATION; DAUGHTER PRODUCTS; DOSEMETERS; GAMMA RADIATION; 560101; DOSIMETRY AND MONITORING
OSTI ID:
10118861
Research Organizations:
Atomic Energy Control Board, Ottawa, ON (Canada)
Country of Origin:
Canada
Language:
English
Other Identifying Numbers:
Other: ON: DE93611762; CNN: Project no. 4.127.1; TRN: CA9200962006220
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
[126] p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Bigu, J. Rapid determination of radon daughter concentrations. Canada: N. p., 1990. Web.
Bigu, J. Rapid determination of radon daughter concentrations. Canada.
Bigu, J. 1990. "Rapid determination of radon daughter concentrations." Canada.
@misc{etde_10118861,
title = {Rapid determination of radon daughter concentrations}
author = {Bigu, J}
abstractNote = {A technical evaluation of four radon 222 progeny measuring instruments has been conducted. The evaluation has been carried out under laboratory controlled conditions and at several locations in an underground uranium mine. The laboratory evaluation consisted of a thorough study of the behaviour and performance of the instruments under a wide variety of environmental conditions such as radon 222 gas concentration, radon 222 progeny concentration, temperature, relative humidity, aerosol concentration, and gamma-field exposure. The four instruments tested were: the Pylon WL-1000C, the MDA IWLM-811, the MIMIL IIM, and the EDA WLM-30. The readings of the instruments were compared with a widely accepted radon 222 progeny concentration measuring method, namely, the Thomas-Tsivoglou method. Two variables affected two instruments significantly, namely, under high aerosol concentration conditions, one of the instruments (EDA WLM-30) ceased to operate because of filter loading. The other variable was gamma-field exposure which affected another instrument (MDA-811) adversely. The instruments were rated according to several criteria. The overall best performer was the MIMIL IIM, although other instruments also fared quite well under a variety of experimental conditions.}
place = {Canada}
year = {1990}
month = {Aug}
}