New approach to calculate the true-coincidence effect of HpGe detector
The corrections for true-coincidence effects in HpGe detector are important, especially at low source-todetector distances. This work established an approach to calculate the true-coincidence effects experimentally for HpGe detectors of type Canberra GC3018 and Ortec GEM25-76-XLB-C, which are in o...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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American Institute of Physics Inc.
2016
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| Online Access: | http://ir.unimas.my/id/eprint/13006/ http://ir.unimas.my/id/eprint/13006/1/New%20Approach%20To%20Calculate%20The%20True-coincidence%20Effect%20Of%20HpGe%20Detector%20%28abstract%29.pdf |
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| author | Alnour, I.A. Wagiran, H. Ibrahim, N. Hamzah, S. Siong, W.B. Elias, M.S. |
| author_facet | Alnour, I.A. Wagiran, H. Ibrahim, N. Hamzah, S. Siong, W.B. Elias, M.S. |
| author_sort | Alnour, I.A. |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | The corrections for true-coincidence effects in HpGe detector are important, especially at low source-todetector
distances. This work established an approach to calculate the true-coincidence effects experimentally for HpGe
detectors of type Canberra GC3018 and Ortec GEM25-76-XLB-C, which are in operation at neutron activation analysis
lab in Malaysian Nuclear Agency (NM). The correction for true-coincidence effects was performed close to detector at
distances 2 and 5 cm using 57Co, 60Co, 133Ba and 137Cs as standard point sources. The correction factors were ranged
between 0.93-1.10 at 2 cm and 0.97-1.00 at 5 cm for Canberra HpGe detector; whereas for Ortec HpGe detector ranged
between 0.92-1.13 and 0.95-100 at 2 and 5 cm respectively. The change in efficiency calibration curve of the detector at
2 and 5 cm after correction was found to be less than 1%. Moreover, the polynomial parameters functions were simulated
through a computer program, MATLAB in order to find an accurate fit to the experimental data points. |
| first_indexed | 2025-11-15T06:37:47Z |
| format | Article |
| id | unimas-13006 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T06:37:47Z |
| publishDate | 2016 |
| publisher | American Institute of Physics Inc. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-130062017-02-22T08:02:27Z http://ir.unimas.my/id/eprint/13006/ New approach to calculate the true-coincidence effect of HpGe detector Alnour, I.A. Wagiran, H. Ibrahim, N. Hamzah, S. Siong, W.B. Elias, M.S. TK Electrical engineering. Electronics Nuclear engineering The corrections for true-coincidence effects in HpGe detector are important, especially at low source-todetector distances. This work established an approach to calculate the true-coincidence effects experimentally for HpGe detectors of type Canberra GC3018 and Ortec GEM25-76-XLB-C, which are in operation at neutron activation analysis lab in Malaysian Nuclear Agency (NM). The correction for true-coincidence effects was performed close to detector at distances 2 and 5 cm using 57Co, 60Co, 133Ba and 137Cs as standard point sources. The correction factors were ranged between 0.93-1.10 at 2 cm and 0.97-1.00 at 5 cm for Canberra HpGe detector; whereas for Ortec HpGe detector ranged between 0.92-1.13 and 0.95-100 at 2 and 5 cm respectively. The change in efficiency calibration curve of the detector at 2 and 5 cm after correction was found to be less than 1%. Moreover, the polynomial parameters functions were simulated through a computer program, MATLAB in order to find an accurate fit to the experimental data points. American Institute of Physics Inc. 2016 Article PeerReviewed text en http://ir.unimas.my/id/eprint/13006/1/New%20Approach%20To%20Calculate%20The%20True-coincidence%20Effect%20Of%20HpGe%20Detector%20%28abstract%29.pdf Alnour, I.A. and Wagiran, H. and Ibrahim, N. and Hamzah, S. and Siong, W.B. and Elias, M.S. (2016) New approach to calculate the true-coincidence effect of HpGe detector. International Nuclear Science, Technology And Engineering Conference 2015 (Inustec2015), 1704. ISSN 0094243X http://dx.doi.org/10.1063/1.4940074 |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Alnour, I.A. Wagiran, H. Ibrahim, N. Hamzah, S. Siong, W.B. Elias, M.S. New approach to calculate the true-coincidence effect of HpGe detector |
| title | New approach to calculate the true-coincidence effect of HpGe detector |
| title_full | New approach to calculate the true-coincidence effect of HpGe detector |
| title_fullStr | New approach to calculate the true-coincidence effect of HpGe detector |
| title_full_unstemmed | New approach to calculate the true-coincidence effect of HpGe detector |
| title_short | New approach to calculate the true-coincidence effect of HpGe detector |
| title_sort | new approach to calculate the true-coincidence effect of hpge detector |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| url | http://ir.unimas.my/id/eprint/13006/ http://ir.unimas.my/id/eprint/13006/ http://ir.unimas.my/id/eprint/13006/1/New%20Approach%20To%20Calculate%20The%20True-coincidence%20Effect%20Of%20HpGe%20Detector%20%28abstract%29.pdf |