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The Mechanism of Slow Component Suppression in Lanthanum Doped Barium Fluoride Crystal

Published online by Cambridge University Press:  21 February 2011

Gu Mu
Affiliation:
Department of Physics, Tongji University, Shanghai 200092, P.R., China
Chen Lingyan
Affiliation:
Department of Physics, Tongji University, Shanghai 200092, P.R., China
Li Qing
Affiliation:
Department of Physics, Tongji University, Shanghai 200092, P.R., China
Wang Liming
Affiliation:
Department of Physics, Tongji University, Shanghai 200092, P.R., China
Xiang Kaihua
Affiliation:
Department of Physics, Tongji University, Shanghai 200092, P.R., China
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Abstract

The electronic structures of pure BaF2 crystal and lanthanum doped BaF2 crystal have been calculated in a self-consistent molecular-cluster model. The cluster is embedded in the crystal lattice and the entire system treatediteratively in the Hartree-Fock-Slater local-density theory. As lanthanum doped BaF2 is concerned, the obtained results revealed that the F1 i which is introduced by the lanthanum may contribute to the suppression ofthe slow component in the scintillation light of BaF2 crystal.

Type
Research Article
Copyright
Copyright © Materials Research Society 1994

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