Derivation of uncertainty propagation for clearance measurement.
Appl Radiat Isot 2021;
170:109630. [PMID:
33561750 DOI:
10.1016/j.apradiso.2021.109630]
[Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 01/27/2021] [Accepted: 01/28/2021] [Indexed: 11/29/2022]
Abstract
Clearance measurements are performed to calculate the sum of the ratios of the measured activity concentration to the limit for all nuclides to be considered. In the derivation of the uncertainty, the modeling of the measurement is essential. By using formula for the modeling, the uncertainty and upper limits of the coverage interval can be calculated by uncertainty propagation. The treatment of the ratio of the activity concentration of difficult-to-measure-nuclides to that of the key nuclide is also described.
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