Energy Response, Accuracy and Linearity of Optically Stimulated Luminescence (OSL) Dosimeters

  • M. K. Abdul Karim Department of Physics, Universiti Putra Malaysia
  • N. S. Mohd Haniff
  • A. B. Abdul Kadir
  • I. Kamal
  • Y. Musa

Abstract

Optically stimulated luminescence dosimeters (OSLDs) have shown tremendous development that leads to the increase higher demand especially used for occupational dose monitoring. Reliability of OSLD depends on their TL properties such as sensitivity, accuracy and reproducibility. This research emphasized on energy response, accuracy and linearity of OSLDs under different spectrum of energies. 33 OSL dosimeters consists of Al2O3:C materials were irradiated with 1 mSv equivalent dose and the distance between source and detector were changed. There is strong correlation between dose response with source 10 mm, Hp(10) of OSL dosimeters is 0.9999. Linearity and energy response of the OSL dosimeters between 32 keV to 1250 keV display a good performance. The accuracy was determined based on the International Commissions on Radiological Protection (ICRP) standard. The dosimeters show minimal deviation from delivered dose with percentage deviation below 5%. This shows OSL dosimeters are reliable to be used for radiation monitoring especially for occupational dose as well as for monitoring.

Published
2021-10-27
How to Cite
ABDUL KARIM, M. K. et al. Energy Response, Accuracy and Linearity of Optically Stimulated Luminescence (OSL) Dosimeters. Physics and Technology in Medicine, [S.l.], v. 2, n. 1 & 2, p. 1-8, oct. 2021. ISSN 2710-723X. Available at: <https://myjms.mohe.gov.my/index.php/ptm/article/view/13247>. Date accessed: 28 may 2022.