DETECTION SYSTEMS FOR MONITORING INTAKES OF ACTINIDES AT TROMBAY

A variety of detection systems are currently in operation at Trombay f or monitoring intakes of actinides by occupational workers of fuel fab rication/reprocessing plants. This paper describes the detection syste ms, their associated electronic instrumentation and performance charac teristics and brings out the advantages offered by them in investigati ng actual cases of actinide intakes. Illustrative data for one case ar e presented which appeared initially to be of inhalation intake, at on e stage as that of inhalation and injection intakes, and was finally i dentified as that of an intake by injection (i.e. through a contaminat ed wound) alone, thanks to the availability of various detection syste ms and sophisticated data analysis techniques.