Determination of full-energy peak and total efficiency functions for Ge-detectors by iteration calculation using a mixed radionuclide source

Empirical calibrations of full-energy peak and total efficiency curves for well-type and coaxial p-type germanium detectors were carried out using several combinations of practical nuclides. As a result, reliable efficiency functions of both types of detectors were successfully obtained using a home-made program coded with Visual Basic for Applications (VBA) and the “Solver” add-in in Excel™. We also examined the applicability of our advanced program to volumetric sources using squared-to-linear curve technique.