LiCaAlF6 (LiCAF) single crystals pure and doped with MgF2 and BaF2 were successfully grown by the Czochralski technique. Optical absorption measurements in the UV/Visible spectral regions following x-ray irradiation (radiation induced absorption) were performed in order to investigate the radiation damage of the crystals. The F-center absorption band at 262 nm is the dominating induced absorption feature. The amplitude of the F-absorption band is suppressed by more than a factor of 3 in Mg-doped LiCAF compared to undoped, while for Ba-doped LiCAF, almost no variation is obtained. In Mg-doped crystals the optimum doping concentration is of about 0.2 mol % of MgF2 in the melt. (C) 2002 American Institute of Physics.

Sato, H., Machida, H., Shimamura, K., Bensalah, A., Satonaga, T., Fukuda, T., et al. (2002). Color centers in LiCaAlF 6 single crystals and their suppression by doping. JOURNAL OF APPLIED PHYSICS, 91(9), 5666-5670 [10.1063/1.1466525].

Color centers in LiCaAlF 6 single crystals and their suppression by doping

VEDDA, ANNA GRAZIELLA
2002

Abstract

LiCaAlF6 (LiCAF) single crystals pure and doped with MgF2 and BaF2 were successfully grown by the Czochralski technique. Optical absorption measurements in the UV/Visible spectral regions following x-ray irradiation (radiation induced absorption) were performed in order to investigate the radiation damage of the crystals. The F-center absorption band at 262 nm is the dominating induced absorption feature. The amplitude of the F-absorption band is suppressed by more than a factor of 3 in Mg-doped LiCAF compared to undoped, while for Ba-doped LiCAF, almost no variation is obtained. In Mg-doped crystals the optimum doping concentration is of about 0.2 mol % of MgF2 in the melt. (C) 2002 American Institute of Physics.
Articolo in rivista - Articolo scientifico
scintillators; neutron dosimetry
English
2002
91
9
5666
5670
none
Sato, H., Machida, H., Shimamura, K., Bensalah, A., Satonaga, T., Fukuda, T., et al. (2002). Color centers in LiCaAlF 6 single crystals and their suppression by doping. JOURNAL OF APPLIED PHYSICS, 91(9), 5666-5670 [10.1063/1.1466525].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/1677
Citazioni
  • Scopus 25
  • ???jsp.display-item.citation.isi??? 25
Social impact