Evaluation of Ce.sup.3+./sup. and alkali metal ions Co-doped LiSrAlF.sub.6./sub. crystalline scintillators

0436925 - FZÚ 2015 RIV GB eng J - Journal Article
Wakahara, S. - Yanagida, T. - Fujimoto, Y. - Yokota, Y. - Pejchal, Jan - Kurosawa, S. - Suzuki, S. - Kawaguchi, N. - Fukuda, K. - Yoshikawa, A.
Evaluation of Ce³⁺ and alkali metal ions Co-doped LiSrAlF₆ crystalline scintillators.
Radiation Measurements. Roč. 56, SI (2013), s. 111-115. ISSN 1350-4487. E-ISSN 1879-0925.
[International Conference on Luminescence Detectors and Transformers of Ionizing Radiation /8./ (LUMDETR 2012). Halle, 10.09.2012-14.09.2012]
Institutional support: RVO:68378271
Keywords : thermal neutron * neutron detection * growth
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 1.140, year: 2013

High scintillation efficiency of Eu-doped LiSrAlF6 (LiSAF) and LiCaAlF6 (LiCAF) codoped with alkali metal ions has been reported in our recent studies. Thus in this paper, we demonstrated the scintillation properties of 1% Ce-doped LiSAF crystals with 1% alkali metal ions co-doping to increase the light yield and understand the scintillation mechanism. The crystals showed intense emission band corresponding to the 5d-4f transition of Ce3+, and their light yields under thermal neutron excitation were higher than that of the Ce only doped crystal. Especially, the light yield of Ce-Na co-doped crystal exceeded about two times that of Ce only doped one. (C) 2013 Elsevier Ltd. All rights reserved.
Permanent Link: http://hdl.handle.net/11104/0240537