A detector system for searching lost γ-ray source
The aim of this work is to develop a Geiger-Muller (GM) detector system for robot to look for a radioactive source in case of a nuclear emergency or in a high radiation environment. In order to find a radiation source easily, a detector system, including 3 detectors, was designed to search γ-ray rad...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-07-01
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| Series: | Nuclear Engineering and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S173857331830384X |
| _version_ | 1811330603751047168 |
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| author | Waseem Khan Chaohui He Yu Cao Rashid Khan Weitao Yang |
| author_facet | Waseem Khan Chaohui He Yu Cao Rashid Khan Weitao Yang |
| author_sort | Waseem Khan |
| collection | DOAJ |
| description | The aim of this work is to develop a Geiger-Muller (GM) detector system for robot to look for a radioactive source in case of a nuclear emergency or in a high radiation environment. In order to find a radiation source easily, a detector system, including 3 detectors, was designed to search γ-ray radiation sources autonomously. First, based on GEANT4 simulation, radiation dose rates in 3 Geiger-Muller (GM) counters were simulated at different source-detector distances, distances between detectors and angles. Various sensitivity analyses were performed experimentally to verify the simulated designed detector system. A mono-energetic C137s γ-ray source with energy 662 keV and activity of 1.11 GBq was used for the observation. The simulated results were compared with the experimental dose rate values and good agreements were obtained for various cases. Only based on the dose rates in three detectors, the radiation source with a specific source activity and angle was localized in the different location. A method was adopted with the measured dose rates and differences of distances to find the actual location of the lost γ-ray source. The corresponding angles of deviation and detection limits were calculated to determine the sensitivity and abilities of our designed detector system. The proposed system can be used to locate radiation sources in low and high radiation environments. |
| first_indexed | 2024-04-13T16:06:06Z |
| format | Article |
| id | doaj.art-c6d0e44311604b6bb6a5f56c0398ec05 |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-04-13T16:06:06Z |
| publishDate | 2020-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-c6d0e44311604b6bb6a5f56c0398ec052022-12-22T02:40:24ZengElsevierNuclear Engineering and Technology1738-57332020-07-0152715241531A detector system for searching lost γ-ray sourceWaseem Khan0Chaohui He1Yu Cao2Rashid Khan3Weitao Yang4Department of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaCorresponding author.; Department of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaDepartment of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaDepartment of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaDepartment of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, ChinaThe aim of this work is to develop a Geiger-Muller (GM) detector system for robot to look for a radioactive source in case of a nuclear emergency or in a high radiation environment. In order to find a radiation source easily, a detector system, including 3 detectors, was designed to search γ-ray radiation sources autonomously. First, based on GEANT4 simulation, radiation dose rates in 3 Geiger-Muller (GM) counters were simulated at different source-detector distances, distances between detectors and angles. Various sensitivity analyses were performed experimentally to verify the simulated designed detector system. A mono-energetic C137s γ-ray source with energy 662 keV and activity of 1.11 GBq was used for the observation. The simulated results were compared with the experimental dose rate values and good agreements were obtained for various cases. Only based on the dose rates in three detectors, the radiation source with a specific source activity and angle was localized in the different location. A method was adopted with the measured dose rates and differences of distances to find the actual location of the lost γ-ray source. The corresponding angles of deviation and detection limits were calculated to determine the sensitivity and abilities of our designed detector system. The proposed system can be used to locate radiation sources in low and high radiation environments.http://www.sciencedirect.com/science/article/pii/S173857331830384XGeant4Gamma-ray sourceGeiger muller counters |
| spellingShingle | Waseem Khan Chaohui He Yu Cao Rashid Khan Weitao Yang A detector system for searching lost γ-ray source Nuclear Engineering and Technology Geant4 Gamma-ray source Geiger muller counters |
| title | A detector system for searching lost γ-ray source |
| title_full | A detector system for searching lost γ-ray source |
| title_fullStr | A detector system for searching lost γ-ray source |
| title_full_unstemmed | A detector system for searching lost γ-ray source |
| title_short | A detector system for searching lost γ-ray source |
| title_sort | detector system for searching lost γ ray source |
| topic | Geant4 Gamma-ray source Geiger muller counters |
| url | http://www.sciencedirect.com/science/article/pii/S173857331830384X |
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