A SIMPLE CALIBRATION METHOD FOR POTASSIUM HALIDE THERMOLUMINESCENCE DOSIMETERS

We present a simple calibration method for europium-doped potassium ha lide dosimeters. The procedure is based on the self-irradiation absorb ed dose of potassium halide thermoluminescence dosimeters due to the n atural content of the radionuclide K-40 in potassium halide crystals. In the small dose range of the order of 0.5 mGy, the precision of the proposed method is highly competitive with traditional calibration met hods, without the need of artificial radiation sources and rather expe nsive and sophisticated measurement equipment. (C) 1995 American Insti tute of Physics.