Radometer; A portable field instrument for the rapid measurement of environmental radon and thoron

Conference · Sat Mar 31 23:00:00 EST 1990 · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (USA)

OSTI ID:6487258

Negro, V C ^[1]

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1. Environmental Measurements Lab., US DOE, New York, NY (US)

This paper reports on the Radometer, which measures radon and thoron by electrostatic collection of charged progeny on a surface barrier detector. Accurate measurements are made in only a few minutes because this instrument uses a dual electric field configuration, thus eliminating filters which slow the response time. An on board computer corrects for the effect of moisture and previous deposition to maintain accuracy and fast response when the instrument encounters high humidity and/or rapid changes in concentration. The instrument's detection volume is 6 L and its efficiency is 25% or .041 cpm per Bq m{sup {minus}3} (1.5 cpm per pCi L{sup {minus}1}).

• OSTI ID: 6487258
• Report Number(s): CONF-900143--
• Journal Information: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (USA), Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (USA) Vol. 37:2; ISSN 0018-9499; ISSN IETNA
• Country of Publication: United States
• Language: English

Related Subjects

440102 -- Radiation Instrumentation-- Radiation Dosemeters
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
54 ENVIRONMENTAL SCIENCES
540130* -- Environment
Atmospheric-- Radioactive Materials Monitoring & Transport-- (1990-)
AIR POLLUTION MONITORING
AIR POLLUTION MONITORS
CHARGED PARTICLE DETECTION
DETECTION
ELEMENTS
ENVIRONMENT
ENVIRONMENTAL TRANSPORT
FLUIDS
GASES
MASS TRANSFER
MEASURING INSTRUMENTS
MONITORS
NONMETALS
ON-LINE MEASUREMENT SYSTEMS
ON-LINE SYSTEMS
RADIATION DETECTION
RADIONUCLIDE MIGRATION
RADON
RARE GASES