Glow Peak Analysis Of Pure And Ge-Doped Silica Flat Fiber At Ultra High Dose Electrons

Gentian silika leper (FF), dicadangkan sebagai pengesan asas dan novel bagi pengukuran sinaran untuk pendarkilau haba (PH) yang dihasilkan. Kajian ditumpukan kepada kesan tindakbalas PH bagi sampel FF dan keluk nyala bagi PH. Pemecut Linear (LINAC) digunakan bagi dos dalam julat radioterapi di an...

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Main Author:	Ariffin, Alawiah
Format:	Thesis
Language:	English
Published:	2015
Subjects:	QC1 Physics (General)
Online Access:	http://eprints.usm.my/31595/1/Alawiah.pdf

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author	Ariffin, Alawiah
author_facet	Ariffin, Alawiah
author_sort	Ariffin, Alawiah
collection	USM
description	Gentian silika leper (FF), dicadangkan sebagai pengesan asas dan novel bagi pengukuran sinaran untuk pendarkilau haba (PH) yang dihasilkan. Kajian ditumpukan kepada kesan tindakbalas PH bagi sampel FF dan keluk nyala bagi PH. Pemecut Linear (LINAC) digunakan bagi dos dalam julat radioterapi di antara 0.2 Gy-10.0 Gy, manakala pemecut elektron digunakan bagi dos yang teramat tinggi dalam julat 1 kGy sehingga 1 MGy. Tindakbalas PH terhadap dos, kesan bahan dopan, kesan kadar pemanasan dan parameter kinetik PH adalah dikaji. Didapati keluk nyala bagi FF beralih kepada suhu yang lebih tinggi, dengan peningkatan kadar pemanasan. Parameter kinetik menunjukkan kebergantungan dengan kadar pemanasan, bagi kedua-dua jenis FF samada tulin atau terdop Ge. Juga didapati model tenaga, Teori Kaviti Burlin (BCT) boleh digunakan bagi meramalkan tindakbalas tenaga FF dengan tepat. Silica flat fiber (FF) is being proposed as the basis for a novel radiation sensor of the thermoluminescence (TL) produced. The TL performance of the FFs and its respective glow curves were studied using a linear accelerator (LINAC) delivering doses of clinical radiotherapy within the range of 0.2-10.0 Gy. An electron accelerator (Alurtron®) was used to deliver the ultra-high dose. The TL dose response, dopant effect, heating rate effect and kinetic parameters of the deconvoluted glow peaks were investigated. The glow curve of FFs shifted to the higher temperature region as the heating rate increases. The kinetic parameters show dependence on the heating rate for both doped and un-doped FFs. It is found that the Burlin Cavity Theory (BCT) fit model can be used to predict the energy response of FF, accurately.
first_indexed	2024-03-06T14:54:48Z
format	Thesis
id	usm.eprints-31595
institution	Universiti Sains Malaysia
language	English
last_indexed	2024-03-06T14:54:48Z
publishDate	2015
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spelling	usm.eprints-315952019-04-12T05:25:42Z http://eprints.usm.my/31595/ Glow Peak Analysis Of Pure And Ge-Doped Silica Flat Fiber At Ultra High Dose Electrons Ariffin, Alawiah QC1 Physics (General) Gentian silika leper (FF), dicadangkan sebagai pengesan asas dan novel bagi pengukuran sinaran untuk pendarkilau haba (PH) yang dihasilkan. Kajian ditumpukan kepada kesan tindakbalas PH bagi sampel FF dan keluk nyala bagi PH. Pemecut Linear (LINAC) digunakan bagi dos dalam julat radioterapi di antara 0.2 Gy-10.0 Gy, manakala pemecut elektron digunakan bagi dos yang teramat tinggi dalam julat 1 kGy sehingga 1 MGy. Tindakbalas PH terhadap dos, kesan bahan dopan, kesan kadar pemanasan dan parameter kinetik PH adalah dikaji. Didapati keluk nyala bagi FF beralih kepada suhu yang lebih tinggi, dengan peningkatan kadar pemanasan. Parameter kinetik menunjukkan kebergantungan dengan kadar pemanasan, bagi kedua-dua jenis FF samada tulin atau terdop Ge. Juga didapati model tenaga, Teori Kaviti Burlin (BCT) boleh digunakan bagi meramalkan tindakbalas tenaga FF dengan tepat. Silica flat fiber (FF) is being proposed as the basis for a novel radiation sensor of the thermoluminescence (TL) produced. The TL performance of the FFs and its respective glow curves were studied using a linear accelerator (LINAC) delivering doses of clinical radiotherapy within the range of 0.2-10.0 Gy. An electron accelerator (Alurtron®) was used to deliver the ultra-high dose. The TL dose response, dopant effect, heating rate effect and kinetic parameters of the deconvoluted glow peaks were investigated. The glow curve of FFs shifted to the higher temperature region as the heating rate increases. The kinetic parameters show dependence on the heating rate for both doped and un-doped FFs. It is found that the Burlin Cavity Theory (BCT) fit model can be used to predict the energy response of FF, accurately. 2015-07 Thesis NonPeerReviewed application/pdf en http://eprints.usm.my/31595/1/Alawiah.pdf Ariffin, Alawiah (2015) Glow Peak Analysis Of Pure And Ge-Doped Silica Flat Fiber At Ultra High Dose Electrons. PhD thesis, Universiti Sains Malaysia.
spellingShingle	QC1 Physics (General) Ariffin, Alawiah Glow Peak Analysis Of Pure And Ge-Doped Silica Flat Fiber At Ultra High Dose Electrons
title	Glow Peak Analysis Of Pure And Ge-Doped Silica Flat Fiber At Ultra High Dose Electrons
title_full	Glow Peak Analysis Of Pure And Ge-Doped Silica Flat Fiber At Ultra High Dose Electrons
title_fullStr	Glow Peak Analysis Of Pure And Ge-Doped Silica Flat Fiber At Ultra High Dose Electrons
title_full_unstemmed	Glow Peak Analysis Of Pure And Ge-Doped Silica Flat Fiber At Ultra High Dose Electrons
title_short	Glow Peak Analysis Of Pure And Ge-Doped Silica Flat Fiber At Ultra High Dose Electrons
title_sort	glow peak analysis of pure and ge doped silica flat fiber at ultra high dose electrons
topic	QC1 Physics (General)
url	http://eprints.usm.my/31595/1/Alawiah.pdf
work_keys_str_mv	AT ariffinalawiah glowpeakanalysisofpureandgedopedsilicaflatfiberatultrahighdoseelectrons

Glow Peak Analysis Of Pure And Ge-Doped Silica Flat Fiber At Ultra High Dose Electrons

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