Development of an environmental gamma-ray and radon detector using thermoluminescent dosimetry and the teflon electret
Thesis/Dissertation
·
OSTI ID:5247395
A new passive, environmental gamma-ray and radon detector (EGARD) which simultaneously integrates indoor /sup 222/Rn concentrations and ..gamma..-ray exposure rates is presented. EGARD employs a Teflon electret (24 ..mu..m thickness) to electrostatically attract /sup 218/Po and /sup 214/Pb to the electret which covers duplicate /sup 7/LiF thermoluminescent dosimeters (TLDs) for recording of the ..cap alpha.. and ..beta.. radioactivity. Two other TLD pairs are available for ..gamma..-ray detection and TLD fading controls. The EGARD housing is an aluminum box (270 mg cm/sup -2/, 0.95 l) into which /sup 222/Rn (but no daughters) may diffuse through foam-covered ports. The lower limit of detection for /sup 222/Rn is approx.100 (pCi-days)/l.
- Research Organization:
- New York Univ., NY (USA)
- OSTI ID:
- 5247395
- Country of Publication:
- United States
- Language:
- English
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Sat Jan 31 23:00:00 EST 1987
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Direct determination of /sup 222/Rn gas using the electret to remove daughters at formation. Annual progress report, June 1, 1981-May 31, 1982
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Thu Dec 31 23:00:00 EST 1981
·
OSTI ID:5032165
Related Subjects
440101* -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
500300 -- Environment
Atmospheric-- Radioactive Materials Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
AIR POLLUTION MONITORING
ALPHA DECAY RADIOISOTOPES
DAYS LIVING RADIOISOTOPES
DESIGN
DOSIMETRY
ELECTROMAGNETIC RADIATION
EVEN-EVEN NUCLEI
GAMMA RADIATION
HEAVY NUCLEI
INDOOR AIR POLLUTION
IONIZING RADIATIONS
ISOTOPES
MEASURING INSTRUMENTS
NUCLEI
POLLUTION
RADIATION DETECTORS
RADIATIONS
RADIOISOTOPES
RADON 222
RADON ISOTOPES
THERMOLUMINESCENT DOSIMETRY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
500300 -- Environment
Atmospheric-- Radioactive Materials Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
AIR POLLUTION MONITORING
ALPHA DECAY RADIOISOTOPES
DAYS LIVING RADIOISOTOPES
DESIGN
DOSIMETRY
ELECTROMAGNETIC RADIATION
EVEN-EVEN NUCLEI
GAMMA RADIATION
HEAVY NUCLEI
INDOOR AIR POLLUTION
IONIZING RADIATIONS
ISOTOPES
MEASURING INSTRUMENTS
NUCLEI
POLLUTION
RADIATION DETECTORS
RADIATIONS
RADIOISOTOPES
RADON 222
RADON ISOTOPES
THERMOLUMINESCENT DOSIMETRY