Determination of the Minimum Time for OSL Signal Annealing after Reading Radiation Dose of Inlight® Basic OSL Dosimeter before Reuse

Determination of the Minimum Time to OSL Signal Annealing of InLight® Basic OSL Dosimeter

Abstract

         The Inlight^® Basic OSL radiation dosimeter is a personal radiation measurement device used to measure X-ray, gamma ray and beta ray, which can be reused by a light exposure from an automatic OSL signal annealer and the residual radiation dose value after annealing must be less than 0.1 millisievert. It is important to find proper time being used to erase the OSL signal of dosimeters to achieve maximum efficiency. This study aimed to determine of the minimum time of OSL signal annealing after reading the radiation dose of Inlight® Basic before reuse. It was found that the annealing times of 0, 10, 20, 40, 50, 60, 80 and 160 seconds, gave vise to radiation dose of 9.59, 0.78, 0.27, 0.07, 0.06, 0.05, 0.03 and 0.03 mSv, respectively. Therefore, the minimum time for OSL signal annealing was 40 seconds for those OSL dosimeters that received a radiation dose not more than 10 mSv. This Information from the study will be useful to reduce the time it takes to anneal OSL and thus the operation time.