Publication: Workplace monitoring using optically stimulated luminescence (osl) dosimeter at nuclear medicine department.
| dc.contributor.author | Paduppa, Eryka | |
| dc.date.accessioned | 2025-06-23T02:47:01Z | |
| dc.date.available | 2025-06-23T02:47:01Z | |
| dc.date.issued | 2016 | |
| dc.description.abstract | The aim of this study was to determine the suitability of Optically Stimulated Luminescence Dosimeter (OSL) for workplace monitoring at Nuclear Medicine Department, HUSM. AI203:C detector (OSL nanodot) was utilized for monitoring the ambient dose equivalent value at several places in the department with comparison to LiF:Mg,Ti detector (TLD100). Two OSL nanodot and TLD100 were attached 1 meter from the ground in Hot Lab 1, Hot Lab 2, Iodine Ablation ward and Gamma room. This study also used direct method (survey meter) and calculation method to estimate radiation exposure emitted from radionuclide inside patient body which measured from patient to dosimeters distance. Results showed that OSL nanodot reading 53.69 % agreement with TLD100. At most site, the ambient dose equivalent values obtained with OSL nanodot were 26 - 74.32 % less than TLD100. The maximum ambient dose rate in the department was 12. 79 µSv/h found in Hot Lab 2. The contribution of high dose corresponds to the high activity of radionuclide involved in investigation sites. Site with minimum dose was in Gamma room, having ambient dose equivalent rates equal to 0.019 µSv/h. Survey meter and calculated exposure readings were converted to ambient dose equivalent in Gamma room and Ablation ward. Accumulated ambient dose per month found in Gamma room by survey meter (0.007 mSv) and calculated (0.013 mSv) found more compatible to OSL nanodot dosimeter reading (0.014 ± 0.01 mSv) compared to TLD100 (0.054 ± 0.03 mSv). Meanwhile, in Ablation ward, the calculated dose value, 0.797 mSv was less than dose value in TLD100 (1.722 ± 0.34 mSv) and OSL nanodot (2.424 ± 0.17). Higher dose measured by both dosimeters because the patients account as extended source. In conclusion, OSL dosimeter possible to used in workplace monitoring. | |
| dc.identifier.uri | https://erepo.usm.my/handle/123456789/22218 | |
| dc.language.iso | en | |
| dc.title | Workplace monitoring using optically stimulated luminescence (osl) dosimeter at nuclear medicine department. | |
| dc.type | Resource Types::text::report::research report | |
| dspace.entity.type | Publication | |
| oairecerif.author.affiliation | Universiti Sains Malaysia. |