TL;DR
This paper reports on experimental measurements and simulations of LaBr3(Ce) detectors' response to gamma rays in the 6-38 MeV range, focusing on linearity, efficiency, and response characteristics.
Contribution
It provides new experimental data and Monte Carlo simulations for large-volume LaBr3(Ce) detectors' response to high-energy gamma rays.
Findings
Detectors' linearity was confirmed across the energy range.
Photopeak and interaction efficiencies were evaluated for different source configurations.
Monte Carlo simulations successfully reproduced experimental spectra.
Abstract
Gamma rays in the energy range from 6 to 38 MeV were produced and sent into two large volume LaBr3(Ce) crystals (3.5x8 inches) at the NewSUBARU facility, with the goal of investigating the response function of the detectors. By comparing the experimental spectra of the two detectors we deduced the linearity of the system, separately of the two crystals and of the two PMT and VD associated. Moreover, Monte Carlo simulations were performed in order to reproduce the experimental spectra. The photopeak and interaction efficiencies both in case of a collimated beam and an isotropic source were also evaluated.
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Taxonomy
TopicsRadiation Detection and Scintillator Technologies · Nuclear Physics and Applications · Advanced Semiconductor Detectors and Materials