title: Determination of corrections to true summations of photons for measurements in Marinelli beakers.
abstract: This paper describes a method of determination of correction factors for the true summation effect of photons for measurement of activity of radionuclides emitting gamma radiation. The method was tested with Marinelli beakers samples measured with coaxial germanium detectors. The advantage of this method is its simplicity since it is not necessary to determine the curves of total efficiency for each detector. The correction factor for the particular peak is determined by means of a detector index which is calculated from one of the measurements with a calibration standard.
authors.affiliation: Inspectorate for Ionizing Radiation (CMI-IIR) Department, Czech Metrological Institute, Prague, Czech Republic. pdryak@cmi.cz
authors.forename: Pavel
authors.initials: P
authors.lastname: Dryak
authors.forename: Petr
authors.initials: P
authors.lastname: Kovar
authors.forename: Jiri
authors.initials: J
authors.lastname: Suran