Abstract
Personnel dose monitoring among nuclear medicine worker is the most vital component in the occupational safety. Generally, most of these workers are monitored by using variable type of personnel dosimeter such as optically stimulated luminescence (OSL), radio-photoluminescence (RPL), thermoluminescence dosimeter (TLD) and film badge. Therefore, we aimed to estimate whole body exposure of workers using OSL and RPL and evaluate the performance of both dosimeters in occupational dosimetry. 22 subjects (5 physicists, 6 pharmacists and 11 technologists) were participated in this study where both dosimeter was placed on mid-chest area for a period of 3 month. For analysis purpose, the RPL was sent to APM Nuclear Technology while OSL was analyzed by in house physicist using OSL reader (Microstar, Japan). Mean dose value Hp(10) of the nuclear medicine worker using OSL and RPL result obtained were 0.23 ± 0.11 mSv and 0.19 ± 0.07 mSv, respectively. As indicate from the result, there was a significant difference of dose between OSL and RPL. The range of dose value recorded for OSL and RPL measurement was 0.20 mSv to 0.26 mSv and 0.17 mSv to 0.21 mSv, respectively. The finding of this study shows that OSL was much more sensitive than RPL by a factor of 1.2. Therefore, OSL will enhance occupational safety program by minimizing radiation risk among radiation worker.
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