Development of a Multifunctional Radiation Measurement System for the Rapid Radiological Characterization of a Decommissioned Nuclear Facility Site
In this study, a radiation measurement system with multifunctions for the rapid radiological characterization of a decommissioned nuclear facility site was developed and evaluated. The system remotely and simultaneously measures the beta and gamma radiation from the soil at a decommissioned nuclear...
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| Veröffentlicht in: | Journal of sensors 2021, Vol.2021 (1) |
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| creator | Joo, Han Young Kim, Jae Wook Kim, Young Seo Jeong, So Yun Lee, Bongsoo Moon, Joo Hyun |
| description | In this study, a radiation measurement system with multifunctions for the rapid radiological characterization of a decommissioned nuclear facility site was developed and evaluated. The system remotely and simultaneously measures the beta and gamma radiation from the soil at a decommissioned nuclear facility site and wirelessly transmits the measurement data to the main server, which collects and analyzes the data. The radiation-measuring part of the system is composed of a sensing probe, multichannel analyzer (MCA), and laptop computer. The sensing probe is a phoswich radiation sensor (PHORS) consisting of two inorganic scintillators (NaI(Tl) and CaF2(Eu)), each of which simultaneously measures the count rates and energies of the beta and gamma radiation. To test the performance of the PHORS, the beta and gamma radiation from a radiation source at 0–10 cm depths (at steps of 1 cm) under a soil surface was measured. The measurements show that the radiation count rates agree well with the theoretically predicted ones; the PHORS is as good as commercial radiation detectors in providing the energy spectrum of a radionuclide. In addition, a chi-square test was conducted, and the energy resolution was evaluated. The communication part of the system consisting of a global positioning system (GPS) and long-term evolution telecommunication (LTE) modem can successfully transmit the measurement data and their location information. |
| doi_str_mv | 10.1155/2021/8870609 |
| format | Article |
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The system remotely and simultaneously measures the beta and gamma radiation from the soil at a decommissioned nuclear facility site and wirelessly transmits the measurement data to the main server, which collects and analyzes the data. The radiation-measuring part of the system is composed of a sensing probe, multichannel analyzer (MCA), and laptop computer. The sensing probe is a phoswich radiation sensor (PHORS) consisting of two inorganic scintillators (NaI(Tl) and CaF2(Eu)), each of which simultaneously measures the count rates and energies of the beta and gamma radiation. To test the performance of the PHORS, the beta and gamma radiation from a radiation source at 0–10 cm depths (at steps of 1 cm) under a soil surface was measured. The measurements show that the radiation count rates agree well with the theoretically predicted ones; the PHORS is as good as commercial radiation detectors in providing the energy spectrum of a radionuclide. In addition, a chi-square test was conducted, and the energy resolution was evaluated. The communication part of the system consisting of a global positioning system (GPS) and long-term evolution telecommunication (LTE) modem can successfully transmit the measurement data and their location information.</description><identifier>ISSN: 1687-725X</identifier><identifier>EISSN: 1687-7268</identifier><identifier>DOI: 10.1155/2021/8870609</identifier><language>eng</language><publisher>New York: Hindawi</publisher><subject>Beta rays ; Chi-square test ; Communications systems ; Decommissioning ; Energy resolution ; Energy spectra ; Gamma rays ; Global positioning systems ; GPS ; Industrial plant emissions ; Laptop computers ; Nuclear engineering ; Nuclear power plants ; Radiation detectors ; Radiation measurement ; Radioisotopes ; Scintillation counters ; Sensors ; Soils ; Statistical tests</subject><ispartof>Journal of sensors, 2021, Vol.2021 (1)</ispartof><rights>Copyright © 2021 Han Young Joo et al.</rights><rights>Copyright © 2021 Han Young Joo et al. This is an open access article distributed under the Creative Commons Attribution License (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. 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The system remotely and simultaneously measures the beta and gamma radiation from the soil at a decommissioned nuclear facility site and wirelessly transmits the measurement data to the main server, which collects and analyzes the data. The radiation-measuring part of the system is composed of a sensing probe, multichannel analyzer (MCA), and laptop computer. The sensing probe is a phoswich radiation sensor (PHORS) consisting of two inorganic scintillators (NaI(Tl) and CaF2(Eu)), each of which simultaneously measures the count rates and energies of the beta and gamma radiation. To test the performance of the PHORS, the beta and gamma radiation from a radiation source at 0–10 cm depths (at steps of 1 cm) under a soil surface was measured. The measurements show that the radiation count rates agree well with the theoretically predicted ones; the PHORS is as good as commercial radiation detectors in providing the energy spectrum of a radionuclide. 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| subjects | Beta rays Chi-square test Communications systems Decommissioning Energy resolution Energy spectra Gamma rays Global positioning systems GPS Industrial plant emissions Laptop computers Nuclear engineering Nuclear power plants Radiation detectors Radiation measurement Radioisotopes Scintillation counters Sensors Soils Statistical tests |
| title | Development of a Multifunctional Radiation Measurement System for the Rapid Radiological Characterization of a Decommissioned Nuclear Facility Site |
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