Crystal growth and scintillation properties of Lu substituted CeBr.sub.3./sub. single crystals

0470874 - FZÚ 2017 RIV NL eng J - Journal Article
Ito, T. - Yokota, Y. - Kurosawa, S. - Král, Robert - Kamada, K. - Pejchal, Jan - Ohashi, Y. - Yoshikawa, A.
Crystal growth and scintillation properties of Lu substituted CeBr₃ single crystals.
Journal of Crystal Growth. Roč. 452, Oct (2016), s. 65-68. ISSN 0022-0248. E-ISSN 1873-5002.
[American Conference on Crystal Growth and Epitaxy /20./ (ACCGE) / 17th Biennial Workshop on Organometallic Vapor Phase Epitaxy (OMVPE) / 2nd 2D Electronic Materials Symposium. Big Sky, MT, 02.08.2015-07.08.2015]
Institutional support: RVO:68378271
Keywords : radiation * halides * scintillator materials * crystal growth
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 1.751, year: 2016

We grew Lu-substituted CeBr3 [(Ce1-xLux)Br-3] crystals by a modified micro-pulling-down method to increase the effective atomic number and to investigate effects of the Lu substitution on the crystal growth, phase generation, chemical composition, and optical and scintillation properties. The (Ce1-xLux)Br-3 crystals with x=0 and 0.01 had high transparency while the milky parts were generated in the crystals with x=0.05 and 0.20. By the analysis of chemical composition, the estimated Z(eff) increased to 47.9. On the other hand, the light yields were systematically decreased and decay times were increased with increasing Lu concentration.
Permanent Link: http://hdl.handle.net/11104/0268391