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Title: Continuous measurement of working level exposure of uranium miners

Abstract

At each site a constant flow pump draws mine air through a fiberglass filter located in front of a beta detector (pancake type Geiger Mueller tube). Radioactive particles (products of the radon 222 gas emanating from the mine walls) collect on the filter and decay, releasing alpha and beta particles as well as gamma rays. A portion of the beta particles penetrate the Geiger tube window and create electrical pulses in the tube. These pulses are then amplified and sent by a coaxial type or shielded electrical cable to a central monitor located some distance from a working level detector. Laboratory and field evaluation results show that an overall working level measurement accuracy of +-10% can be achieved. Durability was good during several months of in-mine testing. This system was developed by the Bureau's Denver Mining Research Center. A patent application (No. 920,513) on the continuous working level detector has been filed by the U.S. Department of the Interior.

Publication Date:
OSTI Identifier:
6375227
Alternate Identifier(s):
OSTI ID: 6375227
Resource Type:
Journal Article
Journal Name:
Technol. News; (United States)
Additional Journal Information:
Journal Volume: 60
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; MINERS; WORKING CONDITIONS; URANIUM MINES; RADIATION MONITORING; MEASURING INSTRUMENTS; RADIOACTIVITY; RADON; ELEMENTS; MINES; MONITORING; NONMETALS; PERSONNEL; RARE GASES 050300* -- Nuclear Fuels-- Mining-- (-1987); 440101 -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments

Citation Formats

Not Available. Continuous measurement of working level exposure of uranium miners. United States: N. p., 1979. Web.
Not Available. Continuous measurement of working level exposure of uranium miners. United States.
Not Available. Thu . "Continuous measurement of working level exposure of uranium miners". United States.
@article{osti_6375227,
title = {Continuous measurement of working level exposure of uranium miners},
author = {Not Available},
abstractNote = {At each site a constant flow pump draws mine air through a fiberglass filter located in front of a beta detector (pancake type Geiger Mueller tube). Radioactive particles (products of the radon 222 gas emanating from the mine walls) collect on the filter and decay, releasing alpha and beta particles as well as gamma rays. A portion of the beta particles penetrate the Geiger tube window and create electrical pulses in the tube. These pulses are then amplified and sent by a coaxial type or shielded electrical cable to a central monitor located some distance from a working level detector. Laboratory and field evaluation results show that an overall working level measurement accuracy of +-10% can be achieved. Durability was good during several months of in-mine testing. This system was developed by the Bureau's Denver Mining Research Center. A patent application (No. 920,513) on the continuous working level detector has been filed by the U.S. Department of the Interior.},
doi = {},
journal = {Technol. News; (United States)},
number = ,
volume = 60,
place = {United States},
year = {1979},
month = {2}
}