Calculation of yield curves for air-borne gamma-ray spectrometers

EFFTRAN—A Monte Carlo efficiency transfer code for gamma-ray spectrometry

“…The Monte Carlo approach to efficiency transfer calculations has been used in the past with NaI detectors [11,12], but only relatively simple detector models were considered, since a NaI crystal can be described with a much lower number of parameters than a HPGe one. Only one code for efficiency transfer with HPGe detectors using Monte Carlo integration has been developed so far [13][14][15] and in this code the model of the detector setup consisted of a single cylinder.…”