Abstract
Abstract This work investigates the scintillation properties of Cs 2 LiCeBr 6 crystal as a new material for radiation detection. This scintillation material is grown by the vertical Bridgman method. Under X-ray excitation the sample crystal shows a broad cerium based emission band between 390 and 450 nm wavelength range. Energy resolution for 662 keV γ-rays is measured to be 7.4% (FWHM). At room temperature Cs 2 LiCeBr 6 crystal exhibits three exponential decay time components. The fast and major component of scintillation time profile of Cs 2 LiCeBr 6 emission decays with a 86 ns time constant. Absolute light yield for the sample crystal is estimated to be 27,000 and 29,000 photons/MeV using APD and photomultiplier tube, respectively. The sample crystal shows good proportionality of 5% in the measured energy range from 31 to 1333 keV. This study showed that this new scintillation crystal can be a good candidate for radiation detection and medical imaging. The sample crystal is highly hygroscopic.
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