title: Application of the Monte Carlo method for the calibration of an in situ gamma spectrometer.
abstract: A MCNP model was developed for the efficiency calibration of an in situ gamma ray spectrometry system based on a high purity germanium (HPGe) detector. The detector active crystal volume was adjusted semi-empirically against experimental measurements. Calculated full energy peak efficiency curves, over the photon energy range between 50 keV and 5 MeV, are presented for surface and slab source configurations. The effect of different collimator apertures and the contribution of different HPGe crystal regions in the detector response are also shown.
authors: Institute of Nuclear Technology & Radiation Protection, NCSR Demokritos, Attikis, Greece. faidra@ipta.demokritos.gr
authors: Faidra
authors: F
authors: Tzika
authors: Dimitrios
authors: D
authors: Kontogeorgakos
authors: Theodora
authors: T
authors: Vasilopoulou
authors: Ion E
authors: IE
authors: Stamatelatos