Title :
Optical and scintillation properties of Cs2LiYCl6:Ce3+ and Cs2LiYCl6:Pr3+ crystals
Author :
van Loef, E.V.D. ; Glodo, J. ; Higgins, W.M. ; Shah, K.S.
Author_Institution :
Radiat. Monitoring Devices Inc., Watertown, MA, USA
Abstract :
In this paper we report on the optical and scintillation properties of Cs2LiYCl6:Ce3+ and Cs2LiYCl6:Pr3+ crystals. Crystals of Cs2LiYCl6 doped with different Ce3+ and Pr3+ concentrations were grown and studied under optical, X-ray, gamma ray, and thermal neutron excitation. These scintillators exhibit core-valence and self-trapped exciton luminescence in addition to fast emission from Ce3+ and Pr3+. Efficient thermal neutron detection was observed for both scintillators. The position of the neutron peak in the pulse height spectra was found at about 5 times the channel number of the position of the 137Cs 662 keV gamma peak.
Keywords :
caesium compounds; cerium; excitons; gamma-ray detection; lithium compounds; neutron detection; photoluminescence; praseodymium; scintillation; scintillation counters; yttrium compounds; 137Cs; Cs2LiYCl6:Ce3+; Cs2LiYCl6:Ce3+ crystals; Cs2LiYCl6:Pr3+; Cs2LiYCl6:Pr3+ crystals; X-ray excitation; core-valence luminescence; gamma ray excitation; optical excitation; optical properties; scintillation detectors; scintillation properties; scintillators; self-trapped exciton luminescence; thermal neutron detection; thermal neutron excitation; Crystalline materials; Crystals; Holographic optical components; Holography; Luminescence; Neutrons; Optical pulses; Optical recording; Solid scintillation detectors; Stimulated emission; Cs2LiYCl6; scintillation detectors; scintillators; thermal neutron detection;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2005.856812
