Growth and Luminescence Properties of Ce and Ca Co-Doped LiGdF4-LiF Eutectic Scintillator

Author:

Hishinuma Kosuke1,Kamada Kei1,Kurosawa Shunsuke1,Suzuki Shotaro1,Yamaji Akihiro1,Yokota Yuui1,Yoshikawa Akira1

Affiliation:

1. Tohoku University

Abstract

Ce and Ca co-doped LiGdF4-LiF eutectics were grown and their directionally solidified eutectic (DSE) system has been investigated. In these eutectics, apart from the expected 305 nm emission of the regular Ce3+, 310 nm emission of the Gd3+ and Ce3+-perturbed emission around 320-380 nm was observed. Ce3+-perturbed emission at 340 nm shows the intrinsic decay time of about 27 ns. In photoluminescence mechanism the observed decay time shortening of the regular Ce3+ and Gd3+ centers point to the energy transfer in the sequence the regular Ce3+→ (Gd3+)n→ the perturbed Ce3+ sites.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

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