Study on the detection efficiencies of liquid 99Tcm, 131I, and 18F in a well-type NaI(Tl) gamma spectrometer
Objective: To assess the detection efficiencies of liquid radioisotopes in a well-type NaI(Tl) gamma spectrometer, focusing on the short-lived isotopes 99Tcm, 131I, and 18F. Methods: The detection efficiencies of liquid 99Tcm, 131I, and 18F in a well-type NaI(Tl) gamma spectrometer were systematical...
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| Language: | English |
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Elsevier
2025-02-01
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| Series: | Radiation Medicine and Protection |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666555724001187 |
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| author | Jiayu Liu Xiaojun Lu Chao Zhao |
| author_facet | Jiayu Liu Xiaojun Lu Chao Zhao |
| author_sort | Jiayu Liu |
| collection | DOAJ |
| description | Objective: To assess the detection efficiencies of liquid radioisotopes in a well-type NaI(Tl) gamma spectrometer, focusing on the short-lived isotopes 99Tcm, 131I, and 18F. Methods: The detection efficiencies of liquid 99Tcm, 131I, and 18F in a well-type NaI(Tl) gamma spectrometer were systematically investigated through calibration experiments and Monte Carlo simulations, and accounting for the coincidence-summing effect. Results: The results indicated that the detection efficiencies of 99Tcm, 131I, and 18F varied from 64.4% to 72.3%, 34.8%–43.1% and 27.3%–28.5% for different sample volumes ranging from 15 mL to 80 mL, respectively. The simulated detection efficiencies were highly consistent with the experimental results, with a largest relative deviation of 5% for the 3 radionuclides and 4 different sample volumes. Conclusion: The consistent results between the calibration experiments and Monte Carlo simulations reveal that this measuring device possesses high detection efficiencies of 99Tcm, 131I, and 18F, making it suitable for measuring low-level activity radioactive liquids, such as radioactive waste liquids to be discharged. |
| format | Article |
| id | doaj-art-54aecacefd304613b4015047d718e999 |
| institution | Kabale University |
| issn | 2666-5557 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Radiation Medicine and Protection |
| spelling | doaj-art-54aecacefd304613b4015047d718e9992025-02-12T05:32:54ZengElsevierRadiation Medicine and Protection2666-55572025-02-01614650Study on the detection efficiencies of liquid 99Tcm, 131I, and 18F in a well-type NaI(Tl) gamma spectrometerJiayu Liu0Xiaojun Lu1Chao Zhao2Shanghai Institute of Measurement and Testing Technology, Shanghai 201203, ChinaShanghai Institute of Measurement and Testing Technology, Shanghai 201203, ChinaCorresponding author.; Shanghai Institute of Measurement and Testing Technology, Shanghai 201203, ChinaObjective: To assess the detection efficiencies of liquid radioisotopes in a well-type NaI(Tl) gamma spectrometer, focusing on the short-lived isotopes 99Tcm, 131I, and 18F. Methods: The detection efficiencies of liquid 99Tcm, 131I, and 18F in a well-type NaI(Tl) gamma spectrometer were systematically investigated through calibration experiments and Monte Carlo simulations, and accounting for the coincidence-summing effect. Results: The results indicated that the detection efficiencies of 99Tcm, 131I, and 18F varied from 64.4% to 72.3%, 34.8%–43.1% and 27.3%–28.5% for different sample volumes ranging from 15 mL to 80 mL, respectively. The simulated detection efficiencies were highly consistent with the experimental results, with a largest relative deviation of 5% for the 3 radionuclides and 4 different sample volumes. Conclusion: The consistent results between the calibration experiments and Monte Carlo simulations reveal that this measuring device possesses high detection efficiencies of 99Tcm, 131I, and 18F, making it suitable for measuring low-level activity radioactive liquids, such as radioactive waste liquids to be discharged.http://www.sciencedirect.com/science/article/pii/S2666555724001187Well-type NaI(Tl) gamma spectrometerLiquid radioactive sampleDetection efficiencyMonte Carlo simulationCoincidence summing correction |
| spellingShingle | Jiayu Liu Xiaojun Lu Chao Zhao Study on the detection efficiencies of liquid 99Tcm, 131I, and 18F in a well-type NaI(Tl) gamma spectrometer Radiation Medicine and Protection Well-type NaI(Tl) gamma spectrometer Liquid radioactive sample Detection efficiency Monte Carlo simulation Coincidence summing correction |
| title | Study on the detection efficiencies of liquid 99Tcm, 131I, and 18F in a well-type NaI(Tl) gamma spectrometer |
| title_full | Study on the detection efficiencies of liquid 99Tcm, 131I, and 18F in a well-type NaI(Tl) gamma spectrometer |
| title_fullStr | Study on the detection efficiencies of liquid 99Tcm, 131I, and 18F in a well-type NaI(Tl) gamma spectrometer |
| title_full_unstemmed | Study on the detection efficiencies of liquid 99Tcm, 131I, and 18F in a well-type NaI(Tl) gamma spectrometer |
| title_short | Study on the detection efficiencies of liquid 99Tcm, 131I, and 18F in a well-type NaI(Tl) gamma spectrometer |
| title_sort | study on the detection efficiencies of liquid 99tcm 131i and 18f in a well type nai tl gamma spectrometer |
| topic | Well-type NaI(Tl) gamma spectrometer Liquid radioactive sample Detection efficiency Monte Carlo simulation Coincidence summing correction |
| url | http://www.sciencedirect.com/science/article/pii/S2666555724001187 |
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