CaSO4:Dy; Tm thermoluminophors synthesis technology and their dosimetric characteristics

The aim of the work is to develop and utilize the technology of synthesis of the CaSO4 thermoluminophor activated by Dy or Tm Using the commercial materials of the PA purity. The synthesis technology is described and the following characteristics of the luminophor are given: a) glow curves and the thermal treatment regime; b) sensitivity to the Co-60 gamma-radiation; c) mean value of background luminescence; d) dose characteristics; e) time dependence of fading under laboratory conditions. The presented results are compared with those for analogous TLD-700 luminophors. All the measurements were performed with the 2000(A+B) Harshaw device. The experimentally obtained luminophor characteristics satisfy the requirements of personnel dosimetry and environment monitoring