Accession Number : AD0645901

Title :   PILOT COMPARISON OF TWO THERMOLUMINESCENT DOSIMETRY SYSTEMS WITH FILM BADGES IN ROUTINE PERSONNEL MONITORING.

Descriptive Note : Final rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Johnson,T. L. ; Attix,F. H.

Report Date : 03 JAN 1967

Pagination or Media Count : 36

Abstract : An intercomparison was made of the performance of two thermoluminescent dosimetry (TLD) systems and conventional film badges in a routine gamma-ray personnel monitoring operation. Quartz fiber pocket dosimeters were worn in some cases also, but were read out more frequently than the monthly interval used for the other systems. One of the TLD systems consisted of the U.S. Navy experimental prototype Computer-Indicator CP-748(XN-1)/PD and Detectors DT-284(XN-1)/PD, (respectively the 'reader' and 'dosimeters'). The other was a commercial model of foreign manufacture which will be referred to here as the 'M' system. Both of these types of dosimeters employed calcium fluoride TLD material sealed in a glass envelope with an internal ohmic heater. Both types of TLD's were found to contain radioactive contamination which gave rise to background readings in excess of ambient background by approximately 21-24 mR/mo. (Author)

Descriptors :   (*DOSIMETERS, EFFICIENCY), RADIATION DOSAGE, RADIATION MONITORS, RADIATION EFFECTS, THERMOLUMINESCENCE, PERSONNEL, EXPOSURE(PHYSIOLOGY), RADIOACTIVE CONTAMINATION

Subject Categories : Radiobiology
      Nuclear Instrumentation

Distribution Statement : APPROVED FOR PUBLIC RELEASE