Monte Carlo determination of full energy peak efficiency for a HPGe detector

A detailed investigation of HPGe detector response for improved Monte Carlo efficiency calculations

“…These results are also consistent with what has been reported in a number of studies [1,[4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. It should be noted that, whereas increased attenuation in a thicker dead layer is negligible for higher photon energies, higher energies are nevertheless affected by an increase in dead layer as this also results in a decrease of the sensitive volume of the crystal.…”

“…Hence, this thickness is often adjusted in the model to match Monte Carlo calculated efficiencies with experimental ones [1,[4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. Recently, Huy et al [20] have also presented results indicating that the dead layer thickness can increase with time.…”

HPGe Detector Energy Response Function Calculation Up to 400 keV Based on Monte Carlo Code

“…For the detector simulation, the crystal and its surrounding materials were considered [5][6][7]. Fig.…”

Monte Carlo uncertainty analysis of germanium detector response to -rays with energies below 1MeV

“…Well known to other nuclear applications from early 1904s, the implementation of Monte Carlo methods have recently been extended to the field of detector design and calibration in (natural) g-ray spectrometry with NaI(Tl) and BGO scintillators [6,7] and has facilitated the calibration of Ge semiconductor detectors [8] and assessment of the Ge detector efficiency curve [9]. Monte Carlo simulations have furthermore been instrumental for determination of spatial dependence [10] and full-energy peak efficiency ( [11] and references therein). Simulations have indicated good agreement when compared to empirical and semiempirical efficiency fittings for Ge detectors [12,13] and were validated for efficiency calculations of various source-detector geometries and source shapes [14] and were also deployed for construction of various detector models for efficiency interpolation in g-ray spectrometry [15].…”