Flat Ge-doped optical fibres for food irradiation dosimetry
Exposing food to radiation can improve hygiene quality, germination control, retard sprouting, and enhance physical attributes of the food product. To provide for food safety, radiation dosimetry in irradiated food is required. Herein, fabricated germanium doped (Ge-doped) optical fibres have been u...
| Main Authors: | , , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
AIP Publishing LLC
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/57344/ http://psasir.upm.edu.my/id/eprint/57344/1/Flat%20Ge-doped%20optical%20fibres%20for%20food%20irradiation%20dosimetry.pdf |
| _version_ | 1848853339087831040 |
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| author | Mohd Noor, Noramaliza Jusoh, Mohamad Ashry Abdull Razis, Ahmad Faizal Ariffin, Alawiah Bradley, David Andrew |
| author_facet | Mohd Noor, Noramaliza Jusoh, Mohamad Ashry Abdull Razis, Ahmad Faizal Ariffin, Alawiah Bradley, David Andrew |
| author_sort | Mohd Noor, Noramaliza |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Exposing food to radiation can improve hygiene quality, germination control, retard sprouting, and enhance physical attributes of the food product. To provide for food safety, radiation dosimetry in irradiated food is required. Herein, fabricated germanium doped (Ge-doped) optical fibres have been used. The fibres have been irradiated using a gamma source irradiator, doses in the range 1 kGy to 10 kGy being delivered. Using Ge-doped optical fibres of variable size, type and dopant concentration, study has been made of linearity, reproducibility, and fading. The thermoluminescence (TL) yield of the fibres were obtained and compared. The fibres exhibit a linear dose response over the investigated range of doses, with mean reproducibility to within 2.69 % to 8.77 %, exceeding the dose range of all commercial dosimeters used in evaluating high doses for the food irradiation industry. TL fading of the Ge-doped flat fibres has been found to be < 13%. |
| first_indexed | 2025-11-15T10:52:24Z |
| format | Conference or Workshop Item |
| id | upm-57344 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:52:24Z |
| publishDate | 2014 |
| publisher | AIP Publishing LLC |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-573442017-09-26T04:06:52Z http://psasir.upm.edu.my/id/eprint/57344/ Flat Ge-doped optical fibres for food irradiation dosimetry Mohd Noor, Noramaliza Jusoh, Mohamad Ashry Abdull Razis, Ahmad Faizal Ariffin, Alawiah Bradley, David Andrew Exposing food to radiation can improve hygiene quality, germination control, retard sprouting, and enhance physical attributes of the food product. To provide for food safety, radiation dosimetry in irradiated food is required. Herein, fabricated germanium doped (Ge-doped) optical fibres have been used. The fibres have been irradiated using a gamma source irradiator, doses in the range 1 kGy to 10 kGy being delivered. Using Ge-doped optical fibres of variable size, type and dopant concentration, study has been made of linearity, reproducibility, and fading. The thermoluminescence (TL) yield of the fibres were obtained and compared. The fibres exhibit a linear dose response over the investigated range of doses, with mean reproducibility to within 2.69 % to 8.77 %, exceeding the dose range of all commercial dosimeters used in evaluating high doses for the food irradiation industry. TL fading of the Ge-doped flat fibres has been found to be < 13%. AIP Publishing LLC 2014 Conference or Workshop Item PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/57344/1/Flat%20Ge-doped%20optical%20fibres%20for%20food%20irradiation%20dosimetry.pdf Mohd Noor, Noramaliza and Jusoh, Mohamad Ashry and Abdull Razis, Ahmad Faizal and Ariffin, Alawiah and Bradley, David Andrew (2014) Flat Ge-doped optical fibres for food irradiation dosimetry. In: National Physics Conference 2014 (PERFIK 2014), 18-19 Nov. 2014, Kuala Lumpur, Malaysia. (pp. 1-6). 10.1063/1.4915214 |
| spellingShingle | Mohd Noor, Noramaliza Jusoh, Mohamad Ashry Abdull Razis, Ahmad Faizal Ariffin, Alawiah Bradley, David Andrew Flat Ge-doped optical fibres for food irradiation dosimetry |
| title | Flat Ge-doped optical fibres for food irradiation dosimetry |
| title_full | Flat Ge-doped optical fibres for food irradiation dosimetry |
| title_fullStr | Flat Ge-doped optical fibres for food irradiation dosimetry |
| title_full_unstemmed | Flat Ge-doped optical fibres for food irradiation dosimetry |
| title_short | Flat Ge-doped optical fibres for food irradiation dosimetry |
| title_sort | flat ge-doped optical fibres for food irradiation dosimetry |
| url | http://psasir.upm.edu.my/id/eprint/57344/ http://psasir.upm.edu.my/id/eprint/57344/ http://psasir.upm.edu.my/id/eprint/57344/1/Flat%20Ge-doped%20optical%20fibres%20for%20food%20irradiation%20dosimetry.pdf |