| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1826833 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2009 | 4 Pages |
Abstract
Close‐geometry efficiency calibration has been performed for a 25.4 mm×25.4 mm cylindrical LaBr3(Ce) detector using calibrated point sources of 137Cs and 60Co placed on the top of the detector surface. The absolute total detection efficiency and the absolute photo-peak efficiency, obtained with 60Co, are corrected for coincidence-summing effect. The measured efficiency for 137Cs and the corrected efficiencies for 60Co are reproduced by GEANT4 simulations, considering the detector in a realistic geometry. In addition, the simulations also faithfully reproduce the entire measured spectra for both the sources.
Related Topics
Physical Sciences and Engineering
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Instrumentation
Authors
G. Anil Kumar, I. Mazumdar, D.A. Gothe,