title: Application of Geant4 in routine close geometry gamma spectroscopy for environmental samples.
abstract: This work examines the utilization of Geant4 to practically achieve crucial corrections, in close geometry, for self-absorption and true coincidence summing in gamma-ray spectrometry of environmental samples, namely soil and water. After validation, different simulation options have been explored and compared. The simulation was used to correct for self-absorption effects, and to establish a summing-free efficiency curve, thus overcoming limitations and uncertainties imposed by conventional calibration standards. To be applicable in busy laboratories, simulation results were introduced into the conventional software Genie 2000 in order to be reliably used in everyday routine measurements.
authors.affiliation: Department of Physics, Faculty of Science, Al-Balqa Applied University, P.O. Box 2587, Amman 11941, Jordan. Electronic address: dababneh@bau.edu.jo.
authors.forename: Saed
authors.initials: S
authors.lastname: Dababneh
authors.affiliation: Jordan Nuclear Regulatory Commission, Amman, Jordan.
authors.forename: Ektimal
authors.initials: E
authors.lastname: Al-Nemri
authors.affiliation: Department of Physics, Faculty of Science, The University of Jordan, Amman 11942, Jordan.
authors.forename: Jamal
authors.initials: J
authors.lastname: Sharaf
mesh_terms: D000465:Algorithms; D004784:Environmental Monitoring / Q000379:methods*; D013051:Spectrometry, Gamma / Q000379:methods*
keywords: Coincidence summing correction; Geant4; Genie 2000; Self absorption correction; Simulation; Summing-free efficiency