Growth and scintillation properties of Ce: Li(Ca,Ba)AlF6 scintillator crystals

Yuui Yokota; Shunsuke Kurosawa; Kentaro Fukuda; Kei Kamada; Akira Yoshikawa

doi:10.1109/TNS.2013.2283717

Growth and scintillation properties of Ce: Li(Ca,Ba)AlF₆ scintillator crystals

Yuui Yokota, Shunsuke Kurosawa, Kentaro Fukuda, Kei Kamada, Akira Yoshikawa

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Ba co-doped Ce:LiCaAlF₆[Ce:Li(Ca,Ba)AlF₆] and LiCaAlF₆ [Li(Ca,Ba)AlF₆] crystals with various Ba concentrations were grown and their structures, optical and scintillation properties were investigated. As-grown Ce2%Ba1% and Ce2%Ba2%:Li(Ca,Ba)AlF ₆ crystals were high transparency in all parts while an end part of as-grown Ce2%Ba5%:Li(Ca,Ba)AlF₆ crystal and all parts of as-grown Ba5%:Li(Ca,Ba)AlF₆ crystal included milky parts which decreased transmittance. Ce:Li(Ca,Ba)AlF₆ crystals indicated the emission peaks at 288 and 308 nm from which was attributable to the 5d-4f transition of Ce³⁺ ion in the radioluminescence spectra under α-ray irradiation. In the case of Ce1%Ba2%:Li(Ca,Ba)AlF₆ crystal, light yield under thermal neutron irradiation were improved. Decay times of Ce:Ce:Li(Ca,Ba)AlF₆ under thermal neutron irradiation systematically increased with an increase of Ba concentration.

Original language	English
Article number	6658909
Pages (from-to)	419-423
Number of pages	5
Journal	IEEE Transactions on Nuclear Science
Volume	61
Issue number	1
DOIs	https://doi.org/10.1109/TNS.2013.2283717
Publication status	Published - 2014 Feb

Keywords

Crystalline materials
Neutron radiation effects

ASJC Scopus subject areas

Nuclear and High Energy Physics
Nuclear Energy and Engineering
Electrical and Electronic Engineering

Access to Document

10.1109/TNS.2013.2283717

Cite this

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title = "Growth and scintillation properties of Ce: Li(Ca,Ba)AlF6 scintillator crystals",

abstract = "Ba co-doped Ce:LiCaAlF6[Ce:Li(Ca,Ba)AlF6] and LiCaAlF6 [Li(Ca,Ba)AlF6] crystals with various Ba concentrations were grown and their structures, optical and scintillation properties were investigated. As-grown Ce2%Ba1% and Ce2%Ba2%:Li(Ca,Ba)AlF 6 crystals were high transparency in all parts while an end part of as-grown Ce2%Ba5%:Li(Ca,Ba)AlF6 crystal and all parts of as-grown Ba5%:Li(Ca,Ba)AlF6 crystal included milky parts which decreased transmittance. Ce:Li(Ca,Ba)AlF6 crystals indicated the emission peaks at 288 and 308 nm from which was attributable to the 5d-4f transition of Ce3+ ion in the radioluminescence spectra under α-ray irradiation. In the case of Ce1%Ba2%:Li(Ca,Ba)AlF6 crystal, light yield under thermal neutron irradiation were improved. Decay times of Ce:Ce:Li(Ca,Ba)AlF6 under thermal neutron irradiation systematically increased with an increase of Ba concentration.",

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author = "Yuui Yokota and Shunsuke Kurosawa and Kentaro Fukuda and Kei Kamada and Akira Yoshikawa",

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T2 - Li(Ca,Ba)AlF6 scintillator crystals

AU - Yokota, Yuui

AU - Kurosawa, Shunsuke

AU - Fukuda, Kentaro

AU - Kamada, Kei

AU - Yoshikawa, Akira

PY - 2014/2

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N2 - Ba co-doped Ce:LiCaAlF6[Ce:Li(Ca,Ba)AlF6] and LiCaAlF6 [Li(Ca,Ba)AlF6] crystals with various Ba concentrations were grown and their structures, optical and scintillation properties were investigated. As-grown Ce2%Ba1% and Ce2%Ba2%:Li(Ca,Ba)AlF 6 crystals were high transparency in all parts while an end part of as-grown Ce2%Ba5%:Li(Ca,Ba)AlF6 crystal and all parts of as-grown Ba5%:Li(Ca,Ba)AlF6 crystal included milky parts which decreased transmittance. Ce:Li(Ca,Ba)AlF6 crystals indicated the emission peaks at 288 and 308 nm from which was attributable to the 5d-4f transition of Ce3+ ion in the radioluminescence spectra under α-ray irradiation. In the case of Ce1%Ba2%:Li(Ca,Ba)AlF6 crystal, light yield under thermal neutron irradiation were improved. Decay times of Ce:Ce:Li(Ca,Ba)AlF6 under thermal neutron irradiation systematically increased with an increase of Ba concentration.

AB - Ba co-doped Ce:LiCaAlF6[Ce:Li(Ca,Ba)AlF6] and LiCaAlF6 [Li(Ca,Ba)AlF6] crystals with various Ba concentrations were grown and their structures, optical and scintillation properties were investigated. As-grown Ce2%Ba1% and Ce2%Ba2%:Li(Ca,Ba)AlF 6 crystals were high transparency in all parts while an end part of as-grown Ce2%Ba5%:Li(Ca,Ba)AlF6 crystal and all parts of as-grown Ba5%:Li(Ca,Ba)AlF6 crystal included milky parts which decreased transmittance. Ce:Li(Ca,Ba)AlF6 crystals indicated the emission peaks at 288 and 308 nm from which was attributable to the 5d-4f transition of Ce3+ ion in the radioluminescence spectra under α-ray irradiation. In the case of Ce1%Ba2%:Li(Ca,Ba)AlF6 crystal, light yield under thermal neutron irradiation were improved. Decay times of Ce:Ce:Li(Ca,Ba)AlF6 under thermal neutron irradiation systematically increased with an increase of Ba concentration.

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KW - Neutron radiation effects

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