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Portable apparatus for the measurement of environmental radon and thoron

United States Patent

September 11, 2001
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
The radometer is a portable instrument for the measurement of the concentration of atmospheric radon/thoron in a test area. A constant velocity pump pulls the air from the outside at a constant flow rate. If the air is too moist, some or all of the sample is passed through a desiccant filter prior to encountering an electrostatic filter. The electrostatic filter prevents any charged particles from entering the sampling chamber. Once the sample has entered the chamber, the progeny of the decay of radon/thoron are collected on a detector and measured. The measured data is compiled by a computer and displayed.
Negro; Vincent C. (New Hyde Park, NY)
The United States of America as represented by the United States Department of Energy (Washington, DC)
09/ 376,988
August 19, 1999
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT The United States Government has rights in this invention pursuant to the employer-employee relationship of the U.S. Department of Energy and the inventor.