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Title: Simulation of energy absorption spectrum in NaI crystal detector for multiple gamma energy using Monte Carlo method

The spectrum of gamma energy absorption in the NaI crystal (scintillation detector) is the interaction result of gamma photon with NaI crystal, and it’s associated with the photon gamma energy incoming to the detector. Through a simulation approach, we can perform an early observation of gamma energy absorption spectrum in a scintillator crystal detector (NaI) before the experiment conducted. In this paper, we present a simulation model result of gamma energy absorption spectrum for energy 100-700 keV (i.e. 297 keV, 400 keV and 662 keV). This simulation developed based on the concept of photon beam point source distribution and photon cross section interaction with the Monte Carlo method. Our computational code has been successfully predicting the multiple energy peaks absorption spectrum, which derived from multiple photon energy sources.
Authors:
 [1] ;  [2] ; ; ;  [1]
  1. Department of Physics, Bandung Institute of Technology, Jl. Ganesha 10, Bandung 40132 (Indonesia)
  2. (Indonesia)
Publication Date:
OSTI Identifier:
22391495
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1656; Journal Issue: 1; Conference: APS 2012: 5. Asian Physics Symposium, Bandung (Indonesia), 10-12 Jul 2012; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ABSORPTION SPECTRA; COMPUTERIZED SIMULATION; CROSS SECTIONS; CRYSTALS; ENERGY ABSORPTION; ENERGY SOURCES; GAMMA DETECTION; KEV RANGE; MONTE CARLO METHOD; NAI DETECTORS; PHOTON BEAMS; PHOTONS; POINT SOURCES; SODIUM IODIDES