THERMOLUMINESCENCE DOSIMETER FOR PERSONAL DOSE-EQUIVALENT ASSESSMENT

The possiblity was investigated of utilising a Brazilian thermolumines cence individual dosemeter, usually calibrated in terms of photon dose equivalent, for the assessment of the personal dose equivalent, H(p)( d), at depths of 0.07 and 10 mm. The dosemeter uses four CaSO4:Dy ther moluminescent detectors, between different filters, as the sensitive m aterials. It was calibrated in gamma and X radiation fields in the ene rgy range from 17 to 1250 keV. Linear combinations of the responses of three detectors, in this energy range, allow the evaluation of H(p)(0 .07) and H(p)(10), for radiation incidence angles varying from 0 to 60 degrees, with an accuracy better than 35%. The method is not applicab le to mixed photon-beta fields.