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Direct determination of /sup 222/Rn gas using the electret to remove daughters at formation

Description/Abstract

Five compact, portable, continuous /sup 222/Rn monitors have been constructed inhouse. Printed data can be obtained from intervals ranging from 10 minutes to 990 minutes. One hour count interval provides a lower limit of detection of 0.03 pCi /sup 222/Rn/l/sup -1/ which is sufficient for measurement of any environmental level encountered. Calibration of the units was accomplished in the EML radon calibration room and the typical calibration factor is 165 counts per hour per pCi /sup 222/Rn/l. The units are now being field tested. Two indoor/outdoor pairs are located in a single family dwelling and in a high rise apartment. One unit is being used for special studies.
Authors: Harley, N.H.
Publication Date:1981 Jan 01
OSTI Identifier:OSTI ID: 5640925; Legacy ID: DE82005465
Report Number(s):DOE/EV/10374-1
DOE Contract Number:AC02-80EV10374
Resource Type:Technical Report
Research Org:New York Univ., NY (USA). Medical Center
Country of Publication:United States
Language:English
Format: Size: Pages: 23
Other Number(s):Other: ON: DE82005465
Subject:46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 54 ENVIRONMENTAL SCIENCES; RADIATION MONITORS; RESEARCH PROGRAMS; RADON 222; RADIATION DETECTION; CALIBRATION; ELECTRETS; FIELD TESTS; ALPHA DECAY RADIOISOTOPES; DAYS LIVING RADIOISOTOPES; DETECTION; DIELECTRIC MATERIALS; EVEN-EVEN NUCLEI; HEAVY NUCLEI; ISOTOPES; MATERIALS; MEASURING INSTRUMENTS; MONITORS; NUCLEI; RADIOISOTOPES; RADON ISOTOPES; TESTING
Availability:NTIS, PC A02/MF A01.
Update Date:2008 Feb 07

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