Title :
A Liquid Effluent Beta Monitor
Author :
Swanston, E. ; Jefford, J.D. ; Kroll, R. ; Malm, H.L.
Author_Institution :
Aptec Engineering Ltd., NRD Division Downsview, Ontario M3N 1V7 Canada
Abstract :
To measure and monitor the radioactivity of both pure beta and mixed gamma and beta emitting isotopes down to the maximum permitted concentrations in liquids, a beta monitor was designed. Based on large area, thin window geiger-mueller tubes, and a digital ratemeter the minimum detectable concentration of 90Sr - 90Y in water was less than 1 pCi/ml with the monitor. Window effects, response time, statistical accuracy, decontamination and alarms are discussed.
Keywords :
Beta rays; Contamination; Costs; Delay; Effluents; Geometry; Isotopes; Monitoring; Pollution measurement; Radiation detectors;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1977.4328754
