Crystal growth of Na co-doped Ce:LiCaAlF single crystals and their optical, scintillation and physical properties

0370239 - FZÚ 2012 RIV US eng J - Článek v odborném periodiku
Yokota, Y. - Fujimoto, Y. - Yanagida, T. - Takahashi, H. - Yonetani, M. - Hayashi, K. - Park, I. - Kawaguchi, N. - Fukuda, K. - Yamaji, A. - Fukazawa, Y. - Nikl, Martin - Yoshikawa, A.
Crystal growth of Na co-doped Ce:LiCaAlF single crystals and their optical, scintillation and physical properties.
Crystal Growth & Design. Roč. 11, č. 11 (2011), 4775–4779. ISSN 1528-7483. E-ISSN 1528-7505
Grant ostatní: AVČR(CZ) M100100910
Výzkumný záměr: CEZ:AV0Z10100521
Klíčová slova: LiCaAlF₆ * Ce-doped * Na-codoped * fluoride * neutron scintillator * micro-pulling down method
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 4.720, rok: 2011

We have grown Ce- andNa-co-doped LiCaAlF6 (Ce,Na:LiCAF) single crystals with various Ce and Na concentrations by the micro-pulling-down (μ-PD) method. Physical properties such as crystallinity, transmittance, photoluminescence, scintillation, and radiation resistance were investigated to evaluate the effects of charge compensation by Na co-doping in the Ce-doped LiCaAlF6 (Ce:LiCAF) crystal. With increasing Ce and Na concentrations, the light yield systematically increased, and scintillation decay times decreased. Improvement of radiation resistance accomplished by charge compensation due to Na co-doping is clearly demonstrated.
Trvalý link: http://hdl.handle.net/11104/0006773