Advanced scintillator materials such as LaBr3:Ce and LaCl3:Ce hold great promise for future hard X-ray and gamma-ray astrophysics missions due to their high density, high light output, good linearity, and fast decay times. Of particular importance for future space-based imaging instruments, such as coded-aperture telescopes, is the precise spatial location of individual gamma-ray interactions. We have investigated the position and energy resolution achievable within monolithic (5 cm × 5 cm × 1 cm) LaBr3:Ce and LaCl3:Ce crystals using position-sensitive light readout devices, including a position-sensitive photomultiplier tube and a multi-anode photomultiplier tube. We present the results of these tests and discuss the applicability of such advanced scintillators to future high-energy imaging astrophysics missions.
Nuclear Science Symposium Conference record, 2006. IEEE
Digital Object Identifier (DOI)
Bloser, P.F.; McConnell, M.L.; Macri, J.R.; Ryan, J.M.; Baker, J.J., "Position Resolution in LaBr3 and LaCl3 Scintillators Using Position-Sensitive Photomultiplier Tubes," Nuclear Science Symposium Conference Record, 2006. IEEE , vol.2, no., pp.1204,1207, Oct. 29 2006-Nov. 1 2006