NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Issue Date:
2009
Abstract(summary):
The full-energy peak efficiency calibration and the energy resolution measurements of the 2 in. x 2 in. LaBr(3) gamma-ray detector are presented for gamma-ray energies in the 700 keV-17.6 MeV range. Measurements were done using a combination of proton-capture nuclear reactions on (27)Al, (23)Na, (39)K, (7)Li and (11)B for high-energy gamma-rays, and radioactive sources such as (60)Co and (152)Eu for the lowest energies. At high energies, two gamma-rays in a cascade from proton resonance capture were employed using Al, Na(2)WO(4), K(2)SO(4) and LiBO(2) targets. The obtained results were compared to the simulations performed using a GEANT4 code. (c) 2009 Elsevier B.V. All rights reserved.