Dose Response of Personnel OSL Dosimeter to the Cesium-137 and 80 kVp X-ray Exposure

E. B. Jumpeno, R. Anggraeni, S. N. Barokah, R. Syaifudin


Over the years, several types of dosimeters have been introduced for accurate dose assessment. The OSL dosimeter is one of them. It is used to monitor personnel dose from external exposure. In this paper, dose response of OSL dosimeters in terms of Hp(10) to Cs‑137 gamma and 80 kVp X‑ray radiation will be studied. The dosimeters were irradiated using Cs‑137 gamma and 80 kVp X‑ray to 0.5 mSv, 1 mSv, 3 mSv, 5 mSv, and 10 mSv at a distance of 200 cm, and all of them were subsequently read. Half of the dosimeters that were previously irradiated with a dose of 1 mSv and 5 mSv were read 30 times. The other half of the dosimeters were re-read on day 30 and day 60 from the initial reading. The study shows that relations between measured dose and exposure dose for Cs‑137 gamma and 80 kVp X‑ray irradiation are linear with correlation coefficients (R2) of 0.9997 and 0.9987, respectively. When the OSL dosimeters were read repeatedly, a dose reduction for each reading occured by 0.4 % and 0.5 % on Cs‑137 gamma and 80 kVp X‑ray, respectively. Dose reading on day 60 after Cs‑137 gamma irradiation showed fading of 3.6 % and 2.7 % on OSL dosimeter exposed to 1 mSv and 5 mSv, respectively, whereas fading effect on 80 kVp X‑ray irradiation showed values of 5.9 % and 8.8 % for the two doses.


Personnel OSL dosimeter; Hp(10); Cs 137; X-ray

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