title: Calculation of the decision threshold in gamma-ray spectrometry using sum peaks.
abstract: In the presence of radon daughters, gamma rays from (88)Y with energies at 898.0keV or 1836.1keV appear on a high, continuous background or overlap with other peaks. Therefore a calculation of the decision threshold from the sum peak at 2734.1keV represents a useful alternative, because here the continuous background is low. The decision threshold calculated from this peak can attain a value being comparable to the decision threshold calculated from the gamma-ray peak at 898.0keV.
authors.affiliation: "Jožef Stefan" Institute, Jamova cesta 39, Ljubljana, Slovenia. Electronic address: matjaz.korun@ijs.si.
authors.forename: M
authors.initials: M
authors.lastname: Korun
authors.affiliation: "Jožef Stefan" Institute, Jamova cesta 39, Ljubljana, Slovenia.
authors.forename: B
authors.initials: B
authors.lastname: Vodenik
authors.affiliation: "Jožef Stefan" Institute, Jamova cesta 39, Ljubljana, Slovenia.
authors.forename: B
authors.initials: B
authors.lastname: Zorko
keywords: Decision threshold; Gamma-ray spectrometry; Pile-up effect; Sum peak