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Measurement of high energy gamma rays with large volume LaBr3:Ce scintillators

In the last few years, the Lanthanium Bromide scintillators are attracting the scientic community in nuclear spectroscopy because of their “almost ideal” scintillator properties. An array composed of 10 large volume LaBr3:Ce (3.5” × 8”) detectors, named HECTOR, was developed by the gamma-ray spectroscopy group of University of Milan. A R&D activity was performed on such large detectors and their general performances, especially for high energy gamma rays, have been studied. In fact no information about such large volume crystals is present in literature as they are available since very few years only.