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Detection capability of environmental alpha spectrometry: II. Sensitivity.

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Title: Detection capability of environmental alpha spectrometry: II. Sensitivity.
Authors: Semkow, Thomas M.1 (AUTHOR) eiger007@outlook.com, Burn, Adam G.2,3 (AUTHOR)
Source: Journal of Radioanalytical & Nuclear Chemistry. Oct2025, Vol. 334 Issue 10, p7113-7122. 10p.
Subjects: Sensitivity analysis, Detection limit, Isotopic analysis, Bayesian analysis, Environmental monitoring, Alpha ray spectrometry, Safe Drinking Water Act (U.S.)
Abstract: A sensitivity study was performed on method-blank samples for alpha spectrometry. The samples of water, analyzed for 239Pu and U-nat (234U, 235U, 238U) isotopes, were spiked with the 236Pu and 232U isotope-dilution tracers. The effects of various methods of uncertainty propagation and corrections were studied. In addition, classical detection limits were calculated in terms of decision level, detection limit, upper limit, and determination limit. Cases of zero counts were compared with the Bayesian theory of zero-count detector. Also, detection limits according to the Safe Drinking Water Act definition were calculated. Using the proposed continuity correction, a 4.7% of false-positive rates was observed. The average minimum detectable activities calculated were 0.61, 0.81, 0.82, and 0.74 mBq L−1 for 239Pu, 234U, 235U, and 238U, respectively. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Radioanalytical & Nuclear Chemistry is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: <searchLink fieldCode="DE" term="%22Sensitivity+analysis%22">Sensitivity analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Detection+limit%22">Detection limit</searchLink><br /><searchLink fieldCode="DE" term="%22Isotopic+analysis%22">Isotopic analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Bayesian+analysis%22">Bayesian analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Environmental+monitoring%22">Environmental monitoring</searchLink><br /><searchLink fieldCode="DE" term="%22Alpha+ray+spectrometry%22">Alpha ray spectrometry</searchLink><br /><searchLink fieldCode="DE" term="%22Safe+Drinking+Water+Act+%28U%2ES%2E%29%22">Safe Drinking Water Act (U.S.)</searchLink>
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  Data: A sensitivity study was performed on method-blank samples for alpha spectrometry. The samples of water, analyzed for 239Pu and U-nat (234U, 235U, 238U) isotopes, were spiked with the 236Pu and 232U isotope-dilution tracers. The effects of various methods of uncertainty propagation and corrections were studied. In addition, classical detection limits were calculated in terms of decision level, detection limit, upper limit, and determination limit. Cases of zero counts were compared with the Bayesian theory of zero-count detector. Also, detection limits according to the Safe Drinking Water Act definition were calculated. Using the proposed continuity correction, a 4.7% of false-positive rates was observed. The average minimum detectable activities calculated were 0.61, 0.81, 0.82, and 0.74 mBq L−1 for 239Pu, 234U, 235U, and 238U, respectively. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Journal of Radioanalytical & Nuclear Chemistry is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s10967-025-10398-3
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        Text: English
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        PageCount: 10
        StartPage: 7113
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      – SubjectFull: Sensitivity analysis
        Type: general
      – SubjectFull: Detection limit
        Type: general
      – SubjectFull: Isotopic analysis
        Type: general
      – SubjectFull: Bayesian analysis
        Type: general
      – SubjectFull: Environmental monitoring
        Type: general
      – SubjectFull: Alpha ray spectrometry
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      – SubjectFull: Safe Drinking Water Act (U.S.)
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      – TitleFull: Detection capability of environmental alpha spectrometry: II. Sensitivity.
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              Text: Oct2025
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              Y: 2025
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