Abstract
This research describes preliminary investigation of some radiation dosimetry characteristics of commercial dysprosium fluoride powder. The as-received aliquot has strong thermoluminescence (TL) emission with one sharp peak at ∼234
°C. The TL characteristics have been examined under excitation of gamma (γ) doses in the range 1
Gy–50
kGy from a
60Co gamma source. The dose response was linear up to 100
Gy and a sub-linear response was observed at higher doses. The TL signal is observed to remain stable for aliquots irradiated to γ-doses in the range 1–10
Gy over one month storage period in dark at ambient temperature and humidity conditions. This paper recommends using DyF
3 in doping of TL materials which may be promising for future dosimeter development.