Exploring stable thermoluminescence signal in natural Barite (BaSO4) for retrospective dosimetry.

@article{Sharma2015ExploringST,
  title={Exploring stable thermoluminescence signal in natural Barite (BaSO4) for retrospective dosimetry.},
  author={Suchinder K Sharma and Jugina Thomas and M S Pandian and P Seshubabu Rao and R K Gartia and Ashok K. Singhvi},
  journal={Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine},
  year={2015},
  volume={105},
  pages={198-203}
}
We explore the possible use of Barite (BaSO4) for radiation dosimetry and geochronology using thermoluminescence technique. Natural Barite with Mn as an impurity has a glow peak at 608K with a minimum detectable dose of 1.45±0.12mGy. This peak shows ~35% fading on 30 days of storage time and is photo-bleachable with excellent reproducibility on repeated read-out. The sensitivity changes with dose and evidence of athermal fading is also seen. We infer that the signal can be used for both… CONTINUE READING