Workplace monitoring using optically stimulated luminescence (osl) dosimeter at nuclear medicine department

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...

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Main Author:	Paduppa, Eryka
Format:	Monograph
Language:	English
Published:	Universiti Sains Malaysia 2016
Subjects:	R Medicine (General) RA Public aspects of medicine
Online Access:	http://eprints.usm.my/62539/ http://eprints.usm.my/62539/1/ELMI%20FARHANA%20AB%20RAHIM%20-%20e.pdf

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author	Paduppa, Eryka
author_facet	Paduppa, Eryka
author_sort	Paduppa, Eryka
building	USM Institutional Repository
collection	Online Access
description	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.
first_indexed	2025-11-15T19:15:53Z
format	Monograph
id	usm-62539
institution	Universiti Sains Malaysia
institution_category	Local University
language	English
last_indexed	2025-11-15T19:15:53Z
publishDate	2016
publisher	Universiti Sains Malaysia
recordtype	eprints
repository_type	Digital Repository
spelling	usm-625392025-07-21T04:04:11Z http://eprints.usm.my/62539/ Workplace monitoring using optically stimulated luminescence (osl) dosimeter at nuclear medicine department Paduppa, Eryka R Medicine (General) RA Public aspects of medicine 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. Universiti Sains Malaysia 2016 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/62539/1/ELMI%20FARHANA%20AB%20RAHIM%20-%20e.pdf Paduppa, Eryka (2016) Workplace monitoring using optically stimulated luminescence (osl) dosimeter at nuclear medicine department. Project Report. Universiti Sains Malaysia. (Submitted)
spellingShingle	R Medicine (General) RA Public aspects of medicine Paduppa, Eryka Workplace monitoring using optically stimulated luminescence (osl) dosimeter at nuclear medicine department
title	Workplace monitoring using optically stimulated luminescence (osl) dosimeter at nuclear medicine department
title_full	Workplace monitoring using optically stimulated luminescence (osl) dosimeter at nuclear medicine department
title_fullStr	Workplace monitoring using optically stimulated luminescence (osl) dosimeter at nuclear medicine department
title_full_unstemmed	Workplace monitoring using optically stimulated luminescence (osl) dosimeter at nuclear medicine department
title_short	Workplace monitoring using optically stimulated luminescence (osl) dosimeter at nuclear medicine department
title_sort	workplace monitoring using optically stimulated luminescence (osl) dosimeter at nuclear medicine department
topic	R Medicine (General) RA Public aspects of medicine
url	http://eprints.usm.my/62539/ http://eprints.usm.my/62539/1/ELMI%20FARHANA%20AB%20RAHIM%20-%20e.pdf

Workplace monitoring using optically stimulated luminescence (osl) dosimeter at nuclear medicine department

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