A new method for gamma-efficiency calibration of voluminal samples in cylindrical geometry

In this paper, a new method for the gamma-efficiency calibration of voluminal sea-sediment samples in cylindrical geometry is proposed. The efficiency function can be written as the product of a water-matrix-sample efficiency in the same geometry and a correction factor, improved with regard to those used to date, dependent on the energy and the apparent density. The method has advantages such as its simplicity and speed and has been validated successfully in the energy range of 100–1500keV.