Thermoluminescence trap parameters of tailor-made Ge-doped optical fibre dosimeter
The feasibility study and thermoluminescence trap parameters of tailor-made Ge doped optical fibre as Thermoluminescence (TL) dosimeters has been investigated. The TL yield of the Ge-doped silica fibres produce are shown to be some 2.5× greater than that of the commercially available pure silica fib...
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| Format: | Article |
| Language: | English |
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Elsevier BV
2024
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| Online Access: | http://psasir.upm.edu.my/id/eprint/117599/ http://psasir.upm.edu.my/id/eprint/117599/1/117599.pdf |
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| author | Al-mugren, K.S. Shafiqah, A.S. Siti Sani, S.F. Abdul Tamchek, Nizam Bradley, D.A. |
| author_facet | Al-mugren, K.S. Shafiqah, A.S. Siti Sani, S.F. Abdul Tamchek, Nizam Bradley, D.A. |
| author_sort | Al-mugren, K.S. |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The feasibility study and thermoluminescence trap parameters of tailor-made Ge doped optical fibre as Thermoluminescence (TL) dosimeters has been investigated. The TL yield of the Ge-doped silica fibres produce are shown to be some 2.5× greater than that of the commercially available pure silica fibre Suprasil F300. Further, the pure silica fibre has been shown to provide a linear TL response, remaining so over the dose range 1–200 Gy, showing signs of saturation beyond 200 Gy. Conversely, the Ge-doped silica fibre is observed to show a linear response up to dose of 1000 Gy. For fading response, after 21 days, the signal loss, calculated with respect to the original value, was found to be some 13 % and 20 % for Ge-doped and pure silica, respectively. Based on the peak shape method of Chen (1969), the activation energy for de-trapping of electrons in the Ge-doped silica fibers has been shown to be 1.4× greater than that of the pure silica, with a frequency factor of 9.93 × 109 s−1. The results indicate the tailor- made Ge doped optical fibre to offer promising performance, providing both the greater activation energy and frequency factor compared to the situation for pure silica fiber. |
| first_indexed | 2025-11-15T14:34:11Z |
| format | Article |
| id | upm-117599 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T14:34:11Z |
| publishDate | 2024 |
| publisher | Elsevier BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1175992025-05-30T03:13:26Z http://psasir.upm.edu.my/id/eprint/117599/ Thermoluminescence trap parameters of tailor-made Ge-doped optical fibre dosimeter Al-mugren, K.S. Shafiqah, A.S. Siti Sani, S.F. Abdul Tamchek, Nizam Bradley, D.A. The feasibility study and thermoluminescence trap parameters of tailor-made Ge doped optical fibre as Thermoluminescence (TL) dosimeters has been investigated. The TL yield of the Ge-doped silica fibres produce are shown to be some 2.5× greater than that of the commercially available pure silica fibre Suprasil F300. Further, the pure silica fibre has been shown to provide a linear TL response, remaining so over the dose range 1–200 Gy, showing signs of saturation beyond 200 Gy. Conversely, the Ge-doped silica fibre is observed to show a linear response up to dose of 1000 Gy. For fading response, after 21 days, the signal loss, calculated with respect to the original value, was found to be some 13 % and 20 % for Ge-doped and pure silica, respectively. Based on the peak shape method of Chen (1969), the activation energy for de-trapping of electrons in the Ge-doped silica fibers has been shown to be 1.4× greater than that of the pure silica, with a frequency factor of 9.93 × 109 s−1. The results indicate the tailor- made Ge doped optical fibre to offer promising performance, providing both the greater activation energy and frequency factor compared to the situation for pure silica fiber. Elsevier BV 2024 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/117599/1/117599.pdf Al-mugren, K.S. and Shafiqah, A.S. Siti and Sani, S.F. Abdul and Tamchek, Nizam and Bradley, D.A. (2024) Thermoluminescence trap parameters of tailor-made Ge-doped optical fibre dosimeter. Optical Fiber Technology, 87. art. no. 103884. pp. 1-7. ISSN 1068-5200 https://linkinghub.elsevier.com/retrieve/pii/S1068520024002293 10.1016/j.yofte.2024.103884 |
| spellingShingle | Al-mugren, K.S. Shafiqah, A.S. Siti Sani, S.F. Abdul Tamchek, Nizam Bradley, D.A. Thermoluminescence trap parameters of tailor-made Ge-doped optical fibre dosimeter |
| title | Thermoluminescence trap parameters of tailor-made Ge-doped optical fibre dosimeter |
| title_full | Thermoluminescence trap parameters of tailor-made Ge-doped optical fibre dosimeter |
| title_fullStr | Thermoluminescence trap parameters of tailor-made Ge-doped optical fibre dosimeter |
| title_full_unstemmed | Thermoluminescence trap parameters of tailor-made Ge-doped optical fibre dosimeter |
| title_short | Thermoluminescence trap parameters of tailor-made Ge-doped optical fibre dosimeter |
| title_sort | thermoluminescence trap parameters of tailor-made ge-doped optical fibre dosimeter |
| url | http://psasir.upm.edu.my/id/eprint/117599/ http://psasir.upm.edu.my/id/eprint/117599/ http://psasir.upm.edu.my/id/eprint/117599/ http://psasir.upm.edu.my/id/eprint/117599/1/117599.pdf |