The assessment of tailor-made optical fibre subjected to ionizing radiation

The dosimetric properties of thermoluminescence (TL) dosimeter such as dose response, linearity, sensitivity, fading, minimum detectable dose (MDD), glow curve and reproducibility of optical fibres in comparison with TLD-100 (rod types) have been investigated. The samples used were Dummy Flat Fibre...

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Main Author:	Che Omar, Siti Shuwaibah
Format:	Thesis
Language:	English
Published:	2015
Subjects:	QC Physics
Online Access:	http://eprints.utm.my/id/eprint/54657/25/SitiShuwaibahCheOmarMFS2015.pdf
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spelling	my-utm-ep.546572020-11-03T07:30:59Z The assessment of tailor-made optical fibre subjected to ionizing radiation 2015-02 Che Omar, Siti Shuwaibah QC Physics The dosimetric properties of thermoluminescence (TL) dosimeter such as dose response, linearity, sensitivity, fading, minimum detectable dose (MDD), glow curve and reproducibility of optical fibres in comparison with TLD-100 (rod types) have been investigated. The samples used were Dummy Flat Fibre (DFF), Flat Fibre (FF), Photonic Crystal Fibre (PCF), Multi Photonic Crystal Fibre (MPCF) of 2 mm and 220 µm diameter, Photosensitive Flat Fibre (PFF), Single Mode Optical Fibre (SMF), Germanium - doped (Ge), Erbium - doped (Er) and Aluminum doped Thulium (Al: Tm). The TL samples were placed in solid phantom and irradiated with 6, 9 and 12 MeV electrons beam with dose ranging from 1.0 Gy to 4.0 Gy by using linear accelerator (LINAC) machine. Investigations were also conducted for X - rays with mean energies of 30, 60 and 70 kV, and gamma rays (60Co) from 1.0 mGy up to 24.0 Gy. The glow curves were observed between 155 °C to 287 °C. The results of TL dosimeter subjected to 6, 9 and 12 MeV electrons clearly showed that PFF was superior in terms of TL response and sensitivity. This was followed by Ge, DFF, TLD-100, FF, PCF, Er, Al: Tm, MPCF 2 mm and MPCF 220 µm. For X-ray irradiation, the SMF showed 10 and 8 times more sensitive than TLD-100. The MDD obtained from optical fibres subjected to electron irradiation were between 0.53- 0.60 mGy for PFF, 0.78-0.81 mGy for TLD-100, 1.00-1.26 mGy for Ge and 1.44-1.64 mGy for DFF. The results showed that PFF and SMF have great potential to be considered as a radiation dosimeter. 2015-02 Thesis http://eprints.utm.my/id/eprint/54657/ http://eprints.utm.my/id/eprint/54657/25/SitiShuwaibahCheOmarMFS2015.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:86782 masters Universiti Teknologi Malaysia, Faculty of science Faculty of science
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	QC Physics
spellingShingle	QC Physics Che Omar, Siti Shuwaibah The assessment of tailor-made optical fibre subjected to ionizing radiation
description	The dosimetric properties of thermoluminescence (TL) dosimeter such as dose response, linearity, sensitivity, fading, minimum detectable dose (MDD), glow curve and reproducibility of optical fibres in comparison with TLD-100 (rod types) have been investigated. The samples used were Dummy Flat Fibre (DFF), Flat Fibre (FF), Photonic Crystal Fibre (PCF), Multi Photonic Crystal Fibre (MPCF) of 2 mm and 220 µm diameter, Photosensitive Flat Fibre (PFF), Single Mode Optical Fibre (SMF), Germanium - doped (Ge), Erbium - doped (Er) and Aluminum doped Thulium (Al: Tm). The TL samples were placed in solid phantom and irradiated with 6, 9 and 12 MeV electrons beam with dose ranging from 1.0 Gy to 4.0 Gy by using linear accelerator (LINAC) machine. Investigations were also conducted for X - rays with mean energies of 30, 60 and 70 kV, and gamma rays (60Co) from 1.0 mGy up to 24.0 Gy. The glow curves were observed between 155 °C to 287 °C. The results of TL dosimeter subjected to 6, 9 and 12 MeV electrons clearly showed that PFF was superior in terms of TL response and sensitivity. This was followed by Ge, DFF, TLD-100, FF, PCF, Er, Al: Tm, MPCF 2 mm and MPCF 220 µm. For X-ray irradiation, the SMF showed 10 and 8 times more sensitive than TLD-100. The MDD obtained from optical fibres subjected to electron irradiation were between 0.53- 0.60 mGy for PFF, 0.78-0.81 mGy for TLD-100, 1.00-1.26 mGy for Ge and 1.44-1.64 mGy for DFF. The results showed that PFF and SMF have great potential to be considered as a radiation dosimeter.
format	Thesis
qualification_level	Master's degree
author	Che Omar, Siti Shuwaibah
author_facet	Che Omar, Siti Shuwaibah
author_sort	Che Omar, Siti Shuwaibah
title	The assessment of tailor-made optical fibre subjected to ionizing radiation
title_short	The assessment of tailor-made optical fibre subjected to ionizing radiation
title_full	The assessment of tailor-made optical fibre subjected to ionizing radiation
title_fullStr	The assessment of tailor-made optical fibre subjected to ionizing radiation
title_full_unstemmed	The assessment of tailor-made optical fibre subjected to ionizing radiation
title_sort	assessment of tailor-made optical fibre subjected to ionizing radiation
granting_institution	Universiti Teknologi Malaysia, Faculty of science
granting_department	Faculty of science
publishDate	2015
url	http://eprints.utm.my/id/eprint/54657/25/SitiShuwaibahCheOmarMFS2015.pdf
_version_	1747817698259107840

The assessment of tailor-made optical fibre subjected to ionizing radiation

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