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-to-detector 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 op...
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| creator | Alnour, I. A. Wagiran, H. Ibrahim, N. Hamzah, S. Siong, W. B. Elias, M. S. |
| description | The corrections for true-coincidence effects in HpGe detector are important, especially at low source-to-detector 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. |
| doi_str_mv | 10.1063/1.4940074 |
| format | Article |
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A. ; Wagiran, H. ; Ibrahim, N. ; Hamzah, S. ; Siong, W. B. ; Elias, M. S.</creator><contributor>Mohamed, Abdul Aziz ; Hamzah, Zaini ; Idris, Faridah Mohamad ; Hasan, Abu Bakar</contributor><creatorcontrib>Alnour, I. A. ; Wagiran, H. ; Ibrahim, N. ; Hamzah, S. ; Siong, W. B. ; Elias, M. S. ; Mohamed, Abdul Aziz ; Hamzah, Zaini ; Idris, Faridah Mohamad ; Hasan, Abu Bakar</creatorcontrib><description>The corrections for true-coincidence effects in HpGe detector are important, especially at low source-to-detector 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%. 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A.</creatorcontrib><creatorcontrib>Wagiran, H.</creatorcontrib><creatorcontrib>Ibrahim, N.</creatorcontrib><creatorcontrib>Hamzah, S.</creatorcontrib><creatorcontrib>Siong, W. B.</creatorcontrib><creatorcontrib>Elias, M. S.</creatorcontrib><title>New approach to calculate the true-coincidence effect of HpGe detector</title><title>AIP Conference Proceedings</title><description>The corrections for true-coincidence effects in HpGe detector are important, especially at low source-to-detector 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.</description><subject>07 ISOTOPES AND RADIATION SOURCES</subject><subject>BARIUM 133</subject><subject>CALIBRATION</subject><subject>CESIUM 137</subject><subject>Cesium isotopes</subject><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>COBALT 57</subject><subject>COBALT 60</subject><subject>COMPUTER CODES</subject><subject>Computer simulation</subject><subject>CORRECTIONS</subject><subject>Data points</subject><subject>DIAGRAMS</subject><subject>DISTANCE</subject><subject>Functions (mathematics)</subject><subject>HIGH-PURITY GE DETECTORS</subject><subject>Mathematical analysis</subject><subject>NEUTRON ACTIVATION ANALYSIS</subject><subject>POINT SOURCES</subject><subject>Sensors</subject><subject>SIMULATION</subject><issn>0094-243X</issn><issn>1551-7616</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNp9kEtLAzEUhYMoWKsL_0HAnTA1N89mKcW2QtGNgruQ5kGn1Mk4k1H896a00J2Ly-XCx7nnHIRugUyASPYAE645IYqfoREIAZWSIM_RiBDNK8rZxyW66vstIVQrNR2h-Uv4wbZtu2TdBueEnd25YWdzwHlTphtC5VLduNqHxgUcYgwu4xTxsl0E7EMuZ-qu0UW0uz7cHPcYvc-f3mbLavW6eJ49rirHKc1VlIJCsFprwrjQEF3UPCigXhGpCmIJc1Zy5YSeUi-FX3sGaq34NHgSKRuju4Nu6nNteleX9xuXmqa4MJSW7ILqE1VifQ2hz2abhq4pxgwFChqIELJQ9wdqL2NznRrTdvWn7X4NELNv04A5tvkf_J26E2haH9kfZWty-Q</recordid><startdate>20160122</startdate><enddate>20160122</enddate><creator>Alnour, I. 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A.</creatorcontrib><creatorcontrib>Wagiran, H.</creatorcontrib><creatorcontrib>Ibrahim, N.</creatorcontrib><creatorcontrib>Hamzah, S.</creatorcontrib><creatorcontrib>Siong, W. B.</creatorcontrib><creatorcontrib>Elias, M. S.</creatorcontrib><collection>AIP Open Access Journals</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><jtitle>AIP Conference Proceedings</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Alnour, I. A.</au><au>Wagiran, H.</au><au>Ibrahim, N.</au><au>Hamzah, S.</au><au>Siong, W. B.</au><au>Elias, M. S.</au><au>Mohamed, Abdul Aziz</au><au>Hamzah, Zaini</au><au>Idris, Faridah Mohamad</au><au>Hasan, Abu Bakar</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>New approach to calculate the true-coincidence effect of HpGe detector</atitle><jtitle>AIP Conference Proceedings</jtitle><date>2016-01-22</date><risdate>2016</risdate><volume>1704</volume><issue>1</issue><issn>0094-243X</issn><eissn>1551-7616</eissn><coden>APCPCS</coden><abstract>The corrections for true-coincidence effects in HpGe detector are important, especially at low source-to-detector 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.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.4940074</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | 07 ISOTOPES AND RADIATION SOURCES BARIUM 133 CALIBRATION CESIUM 137 Cesium isotopes CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS COBALT 57 COBALT 60 COMPUTER CODES Computer simulation CORRECTIONS Data points DIAGRAMS DISTANCE Functions (mathematics) HIGH-PURITY GE DETECTORS Mathematical analysis NEUTRON ACTIVATION ANALYSIS POINT SOURCES Sensors SIMULATION |
| title | New approach to calculate the true-coincidence effect of HpGe detector |
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