Bibliographic Details
| 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] |
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| Database: |
Engineering Source |
