Springer Iranian Journal of Science and Technology (Sciences) 1028-6276 32 3 2008 09 06 CHARACTERIZATION OF A NEW PREPARED Li2B4O7: Mn DOSIMETER FOR γ- IRRADIATION HIGH-DOSE DOSIMETRY 221 226 2291 10.22099/ijsts.2008.2291 EN M. SHARIFZADEH Radiation Applications Research School, Nuclear Science &Technology Research Institute, P.O. Box 11365-3486, Tehran, I. R. of Iran R. GORJIFARD Radiation Applications Research School, Nuclear Science &Technology Research Institute, P.O. Box 11365-3486, Tehran, I. R. of Iran Journal Article 2007 07 29 A lithium borate thermoluminescence dosimeter with 0.3 wt% of manganese impurity<br />concentration was prepared for high dose levels in the range of 1-30 kGy for gamma irradiation applications.<br />The TLD reader was used for read out purposes from ambient temperature to about 400°C with a heating rate of 6°C/sec. The pre- and post- irradiation anneal temperature was 300°C for 1.5 and 1 hours respectively. The effects of absorbed dose, dose rate, storage time, as well as the temperature and humidity versus pre- and post-irradiation storage time have been studied. The main glow peak was found to occur at 375°C, and the dosimeter response in the range of 1-30 kGy was linear. No significant fading effect of the dosimetric peak was observed after 8 weeks of storage, and the effects of ambient temperature and humidity were less than ±5% at 95% confidence level. https://ijsts.shirazu.ac.ir/article_2291_8f5d0a024271adf84081c7eebcb9b872.pdf