Efficiency of a bismuth-germanate scintillator: comparison of Monte Carlo calculations with measurements

Conference · Sat Jan 01 00:00:00 EST 1983

DOI:https://doi.org/10.1109/TNS.1984.4333284· OSTI ID:5607610

Hsu, H H; Dowdy, E J; Estes, G P; Lucas, M C; Mack, J M; Moss, C E; Hamm, M E

Monte Carlo calculations of a bismuth-germanate scintillator's efficiency agree closely with experimental measurements. For this comparison, we studied the absolute gamma-ray photopeak efficiency of a scintillator (7.62 cm long by 7.62 cm in diameter) at several gamma-ray energies from 166 to 2615 keV at distances from 0.5 to 152.4 cm. Computer calculations were done in a two-dimensional cylindrical geometry with the Monte Carlo coupled photon-electron code CYLTRAN. For the experiment we measured 11 sources with simple spectra and precisely known strengths. The average deviation between the calculations and the measurements is 3%. Our calculated results also closely agree with recently published calculated results.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Technical Programming Services, Pleasanton, CA (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5607610
• Report Number(s): LA-UR-83-3009; CONF-831015-10; ON: DE84001703
• Resource Relation: Journal Volume: 31; Journal Issue: 1; Conference: Nuclear science symposium, San Francisco, CA, USA, 19 Oct 1983
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BISMUTH GERMANATES
SCINTILLATIONS
SOLID SCINTILLATION DETECTORS
EFFICIENCY
DATA ANALYSIS
ENERGY RESOLUTION
INORGANIC PHOSPHORS
MONTE CARLO METHOD
BISMUTH COMPOUNDS
GERMANATES
GERMANIUM COMPOUNDS
MEASURING INSTRUMENTS
OXYGEN COMPOUNDS
PHOSPHORS
RADIATION DETECTORS
RESOLUTION
SCINTILLATION COUNTERS
440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments