Cover Image

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...

Full description

Saved in:
Bibliographic Details
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
http://eprints.utm.my/id/eprint/54657/
http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:86782
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.utm.54657
record_format eprints
spelling my.utm.546572020-11-03T07:30:59Z http://eprints.utm.my/id/eprint/54657/ The assessment of tailor-made optical fibre subjected to ionizing radiation 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 NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/54657/25/SitiShuwaibahCheOmarMFS2015.pdf Che Omar, Siti Shuwaibah (2015) The assessment of tailor-made optical fibre subjected to ionizing radiation. Masters thesis, Universiti Teknologi Malaysia, Faculty of science. http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:86782
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
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
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
publishDate 2015
url http://eprints.utm.my/id/eprint/54657/25/SitiShuwaibahCheOmarMFS2015.pdf
http://eprints.utm.my/id/eprint/54657/
http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:86782
_version_ 1683230726128926720
score 13.211869

Similar Items