Scintillation characteristics of LiCaAlF6-based single crystals under X-ray excitation

M. Nikl, P. Bruza, D. Panek, M. Vrbova, E. Mihokova, J. A. Mares, A. Beitlerova, N. Kawaguchi, K. Fukuda, A. Yoshikawa

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11 Citations (Scopus)

Abstract

LiCaAlF6-based scintillators are studied under X- and soft gamma-ray excitations. Under nanosecond pulsed soft X-ray laser excitation the scintillation decay is measured with extremely high dynamical resolution and broad time scale. The undoped LiCaAlF6 shows complex temperature dependence of exciton luminescence and tunneling-driven energy transfer process in scintillation decay. In both the Ce and Eu-doped LiCaAlF6 the dominant part of measured scintillation decay is due to prompt recombination of electrons and holes at the doped emission centers. Nevertheless, the measured light yield value is considerably lower with respect to the derived upper limits. Possible origin of its deterioration is discussed.

Original languageEnglish
Article number161907
JournalApplied Physics Letters
Volume102
Issue number16
DOIs
Publication statusPublished - 2013 Apr 22

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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