Bulletin of Materials Science

, Volume 23, Issue 2, pp 155–158 | Cite as

Radiation dosimetry by potassium feldspar

  • Arun Pandya
  • S. G. Vaijapurkar
  • P. K. Bhatnagar


The thermoluminescence (TL) properties of raw and annealed feldspar have been studied for their use in gamma dosimetry. The raw gamma exposed feldspar shows glow peaks at 120°C and 319°C. Gamma dose beyond 500 cGy can be measured without any significant fading even after 40 days of termination of exposure. The annealed feldspar shows a glow peak at 120°C after gamma exposure. This peak can be used to measure gamma doses beyond 25 cGy when the TL is measured after 24 h from termination of exposure.


Potassium feldspar thermoluminescence fading glow curve 


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Copyright information

© Indian Academy of Sciences 2000

Authors and Affiliations

  • Arun Pandya
    • 1
  • S. G. Vaijapurkar
    • 1
  • P. K. Bhatnagar
    • 1
  1. 1.Defence LaboratoryJodhpurIndia

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