Dosimetric characteristics of fabricated silica fibre for postal radiotherapy dose audits
Present investigation aims to establish the dosimetric characteristics of a novel fabricated flat fibre TLD system for postal radiotherapy dose audits. Various thermoluminescence (TL) properties have been investigated for five sizes of 6 mol% Ge-doped optical fibres. Key dosimetric characteristics i...
| Main Authors: | , , , , , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
IOP Publishing
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/43062/1/jpconf14_546_012010.pdf |
| _version_ | 1825929285457674240 |
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| author | Ahmad Fadzil, Muhammad Safwan Ramli, N. N. H. Jusoh, M. A. Kadni, Taiman Bradley, David A. Ung, Ngie Min Hashim, Suhairul Mohd Noor, Noramaliza |
| author_facet | Ahmad Fadzil, Muhammad Safwan Ramli, N. N. H. Jusoh, M. A. Kadni, Taiman Bradley, David A. Ung, Ngie Min Hashim, Suhairul Mohd Noor, Noramaliza |
| author_sort | Ahmad Fadzil, Muhammad Safwan |
| collection | UPM |
| description | Present investigation aims to establish the dosimetric characteristics of a novel fabricated flat fibre TLD system for postal radiotherapy dose audits. Various thermoluminescence (TL) properties have been investigated for five sizes of 6 mol% Ge-doped optical fibres. Key dosimetric characteristics including reproducibility, linearity, fading and energy dependence have been established. Irradiations were carried out using a linear accelerator (linac) and a Cobalt-60 machine. For doses from 0.5 Gy up to 10 Gy, Ge-doped flat fibres exhibit linearity between TL yield and dose, reproducible to better than 8% standard deviation (SD) following repeat measurements (n = 3). For photons generated at potentials from 1.25 MeV to 10 MV an energy-dependent response is noted, with a coefficient of variation (CV) of less than 40% over the range of energies investigated. For 6.0 mm length flat fibres 100 μm thick × 350 pm wide, the TL fading loss following 30 days of storage at room temperature was < 8%. The Ge-doped flat fibre system represents a viable basis for use in postal radiotherapy dose audits, corrections being made for the various factors influencing the TL yield. |
| first_indexed | 2024-03-06T08:54:33Z |
| format | Conference or Workshop Item |
| id | upm.eprints-43062 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:54:33Z |
| publishDate | 2014 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | upm.eprints-430622016-05-17T09:15:51Z http://psasir.upm.edu.my/id/eprint/43062/ Dosimetric characteristics of fabricated silica fibre for postal radiotherapy dose audits Ahmad Fadzil, Muhammad Safwan Ramli, N. N. H. Jusoh, M. A. Kadni, Taiman Bradley, David A. Ung, Ngie Min Hashim, Suhairul Mohd Noor, Noramaliza Present investigation aims to establish the dosimetric characteristics of a novel fabricated flat fibre TLD system for postal radiotherapy dose audits. Various thermoluminescence (TL) properties have been investigated for five sizes of 6 mol% Ge-doped optical fibres. Key dosimetric characteristics including reproducibility, linearity, fading and energy dependence have been established. Irradiations were carried out using a linear accelerator (linac) and a Cobalt-60 machine. For doses from 0.5 Gy up to 10 Gy, Ge-doped flat fibres exhibit linearity between TL yield and dose, reproducible to better than 8% standard deviation (SD) following repeat measurements (n = 3). For photons generated at potentials from 1.25 MeV to 10 MV an energy-dependent response is noted, with a coefficient of variation (CV) of less than 40% over the range of energies investigated. For 6.0 mm length flat fibres 100 μm thick × 350 pm wide, the TL fading loss following 30 days of storage at room temperature was < 8%. The Ge-doped flat fibre system represents a viable basis for use in postal radiotherapy dose audits, corrections being made for the various factors influencing the TL yield. IOP Publishing 2014 Conference or Workshop Item PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/43062/1/jpconf14_546_012010.pdf Ahmad Fadzil, Muhammad Safwan and Ramli, N. N. H. and Jusoh, M. A. and Kadni, Taiman and Bradley, David A. and Ung, Ngie Min and Hashim, Suhairul and Mohd Noor, Noramaliza (2014) Dosimetric characteristics of fabricated silica fibre for postal radiotherapy dose audits. In: 9th National Seminar on Medical Physics (NSMP 2014), 5 Apr. 2014, Marriott Hotel, Putrajaya, Malaysia. (pp. 1-7). 10.1088/1742-6596/546/1/012010 |
| spellingShingle | Ahmad Fadzil, Muhammad Safwan Ramli, N. N. H. Jusoh, M. A. Kadni, Taiman Bradley, David A. Ung, Ngie Min Hashim, Suhairul Mohd Noor, Noramaliza Dosimetric characteristics of fabricated silica fibre for postal radiotherapy dose audits |
| title | Dosimetric characteristics of fabricated silica fibre for postal radiotherapy dose audits |
| title_full | Dosimetric characteristics of fabricated silica fibre for postal radiotherapy dose audits |
| title_fullStr | Dosimetric characteristics of fabricated silica fibre for postal radiotherapy dose audits |
| title_full_unstemmed | Dosimetric characteristics of fabricated silica fibre for postal radiotherapy dose audits |
| title_short | Dosimetric characteristics of fabricated silica fibre for postal radiotherapy dose audits |
| title_sort | dosimetric characteristics of fabricated silica fibre for postal radiotherapy dose audits |
| url | http://psasir.upm.edu.my/id/eprint/43062/1/jpconf14_546_012010.pdf |
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