Abstract
LET dependence of highly sensitive Al 2 O 3 :C and CaF 2 :Mn thermoluminescence (TL) dosemeters was investigated using glow curve analysis to determine the efficiencies of TL light production for alpha particle and neutron irradiation relative to gamma exposure. No high temperature peak, nor significant change of glow curve shape were found after irradiation by high LET (alpha and neutron) radiation. Gamma sensitivity of Al 2 O 3 :C as compared to CaF 2 :Mn was 6:1. However the relative TL efficiency for alpha particle irradiation of Al 2 O 3 :C was a factor of ten lower as compared to that of CaF 2 :Mn. Neutron sensitivity was found to be similar for the two materials.
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