Different germanium dopant concentration and the thermoluminescence characteristics of flat Ge-doped optical fibres
The influence of elevated germanium concentration on the thermoluminesence characteristics of a novel form of fabricated flat optical fibre was examined. All the samples were irradiated with two nominal photon energies (6 MV and 10 MV) and 1.25 MeV gamma energy. Flat fibres with 10 mol % Ge concentr...
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| Format: | Article |
| Language: | English |
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Universiti Putra Malaysia Press
2017
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| Online Access: | http://psasir.upm.edu.my/id/eprint/51620/ http://psasir.upm.edu.my/id/eprint/51620/1/27%20JST%20Vol%2025%20%281%29%20Jan%20%202017_0072-2016_pg327-336.pdf |
| _version_ | 1848851881587113984 |
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| author | Ahmad Fadzil, Muhammad Safwan Ung, Ngie Min Bradley, David Andrew Mohd Noor, Noramaliza |
| author_facet | Ahmad Fadzil, Muhammad Safwan Ung, Ngie Min Bradley, David Andrew Mohd Noor, Noramaliza |
| author_sort | Ahmad Fadzil, Muhammad Safwan |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The influence of elevated germanium concentration on the thermoluminesence characteristics of a novel form of fabricated flat optical fibre was examined. All the samples were irradiated with two nominal photon energies (6 MV and 10 MV) and 1.25 MeV gamma energy. Flat fibres with 10 mol % Ge concentration provided the superior TL yield compared against that of 6 and 8 mol % Ge-doped optical fibres for both 6 MV and 10 MV energy. Interpretation of the results has been aided by study of the glow curves, revealing in particular new generation of defects in the flat fibres due to strain-generation at the collapsed surfaces. The strain represent deep-energy defects. |
| first_indexed | 2025-11-15T10:29:14Z |
| format | Article |
| id | upm-51620 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:29:14Z |
| publishDate | 2017 |
| publisher | Universiti Putra Malaysia Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-516202017-04-05T05:14:46Z http://psasir.upm.edu.my/id/eprint/51620/ Different germanium dopant concentration and the thermoluminescence characteristics of flat Ge-doped optical fibres Ahmad Fadzil, Muhammad Safwan Ung, Ngie Min Bradley, David Andrew Mohd Noor, Noramaliza The influence of elevated germanium concentration on the thermoluminesence characteristics of a novel form of fabricated flat optical fibre was examined. All the samples were irradiated with two nominal photon energies (6 MV and 10 MV) and 1.25 MeV gamma energy. Flat fibres with 10 mol % Ge concentration provided the superior TL yield compared against that of 6 and 8 mol % Ge-doped optical fibres for both 6 MV and 10 MV energy. Interpretation of the results has been aided by study of the glow curves, revealing in particular new generation of defects in the flat fibres due to strain-generation at the collapsed surfaces. The strain represent deep-energy defects. Universiti Putra Malaysia Press 2017 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/51620/1/27%20JST%20Vol%2025%20%281%29%20Jan%20%202017_0072-2016_pg327-336.pdf Ahmad Fadzil, Muhammad Safwan and Ung, Ngie Min and Bradley, David Andrew and Mohd Noor, Noramaliza (2017) Different germanium dopant concentration and the thermoluminescence characteristics of flat Ge-doped optical fibres. Pertanika Journal of Science & Technology, 25 (1). pp. 327-336. ISSN 0128-7680; ESSN: 2231-8526 http://www.pertanika.upm.edu.my/Pertanika%20PAPERS/JST%20Vol.%2025%20(1)%20Jan.%202017/27%20JST%20Vol%2025%20(1)%20Jan%20%202017_0072-2016_pg327-336.pdf |
| spellingShingle | Ahmad Fadzil, Muhammad Safwan Ung, Ngie Min Bradley, David Andrew Mohd Noor, Noramaliza Different germanium dopant concentration and the thermoluminescence characteristics of flat Ge-doped optical fibres |
| title | Different germanium dopant concentration and the thermoluminescence characteristics of flat Ge-doped optical fibres |
| title_full | Different germanium dopant concentration and the thermoluminescence characteristics of flat Ge-doped optical fibres |
| title_fullStr | Different germanium dopant concentration and the thermoluminescence characteristics of flat Ge-doped optical fibres |
| title_full_unstemmed | Different germanium dopant concentration and the thermoluminescence characteristics of flat Ge-doped optical fibres |
| title_short | Different germanium dopant concentration and the thermoluminescence characteristics of flat Ge-doped optical fibres |
| title_sort | different germanium dopant concentration and the thermoluminescence characteristics of flat ge-doped optical fibres |
| url | http://psasir.upm.edu.my/id/eprint/51620/ http://psasir.upm.edu.my/id/eprint/51620/ http://psasir.upm.edu.my/id/eprint/51620/1/27%20JST%20Vol%2025%20%281%29%20Jan%20%202017_0072-2016_pg327-336.pdf |