Open AccessOptimization of HPGe detector response using fast and reliable method
Author(s) -
Rasha Ali El-Tayebany,
M.H. Hazzaa,
Sameh Shaban,
Begawy Hekmat Mohammed El
Publication year - 2020
Publication title -
nuclear technology and radiation protection
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.31
H-Index - 16
eISSN - 1452-8185
pISSN - 1451-3994
DOI - 10.2298/ntrp2003253e
Subject(s) - detector , nuclear material , semiconductor detector , monte carlo method , nuclear engineering , calibration , planar , range (aeronautics) , physics , energy (signal processing) , nuclear physics , materials science , optics , computer science , statistics , computer graphics (images) , mathematics , quantum mechanics , composite material , engineering
Safeguards system with high effectiveness and efficiency must comprise a set of measurements with capabilities satisfactory for the verification of nuclear materials. In this paper, we present key parameter measurements of detector modeling in a commercial n-type low energy germanium detector of a planar crystal with a relative efficiency of nearly 15 %. The detector optimization will hold a significant function in measuring nuclear materials for safeguards application. Standard nuclear materials with diverse enrichment (depleted and low enriched) of uranium and point-like sources (137Cs, 60Co) and mixed radioactive source for Eu isotopes (152Eu, 154Eu, and 155Eu) were benefited to explore the energy resolution and detector efficiency. The energy resolution is measured over a wide range of rise time and flattop. In addition to the experimental work, the Monte Carlo simulation code is used for modeling the setup configuration to obtain the absolute efficiency at different energies. A fast and reliable method was applied in detector efficiency measurements. The data are discussed and interpreted.