Eu concentration dependence on scintillation properties of Eu doped SrI2 single crystals grown by modified micro-pulling-down method

Kei Nishimoto; Yuui Yokota; Shunsuke Kurosawa; Kei Kamada; Akihiro Ymaji; Akira Yoshikawa

doi:10.1016/j.optmat.2014.02.026

Eu concentration dependence on scintillation properties of Eu doped SrI₂ single crystals grown by modified micro-pulling-down method

Kei Nishimoto, Yuui Yokota, Shunsuke Kurosawa, Kei Kamada, Akihiro Ymaji, Akira Yoshikawa

Tohoku University

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

8 Citations (Scopus)

Abstract

Eu doped SrI₂ (Eu:SrI₂) single crystals with various Eu contents were grown by a modified micro-pulling-down (μ-PD) method and effects of Eu concentration on scintillation properties were investigated. Eu 1%, 5%, 7.5%, 10% and 15%:SrI₂ single crystals were obtained and all as-grown crystals indicated high transparency without visible inclusion. Actual Eu contents in the grown crystals were almost same as nominal compositions. In the X-ray radioluminescence spectra, emission peaks around 435 nm were observed in all crystals. Eu7.5 mol%:SrI₂ crystals indicated the highest light yield, 78,000 ph/MeV, and the smallest energy resolution, 3.7%.

Original language	English
Pages (from-to)	1946-1949
Number of pages	4
Journal	Optical Materials
Volume	36
Issue number	12
DOIs	https://doi.org/10.1016/j.optmat.2014.02.026
Publication status	Published - 2014 Oct

Keywords

Eu concentration
Halide material
Light yield
Scintillator
SrI2 single crystal

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10.1016/j.optmat.2014.02.026

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title = "Eu concentration dependence on scintillation properties of Eu doped SrI2 single crystals grown by modified micro-pulling-down method",

abstract = "Eu doped SrI2 (Eu:SrI2) single crystals with various Eu contents were grown by a modified micro-pulling-down (μ-PD) method and effects of Eu concentration on scintillation properties were investigated. Eu 1%, 5%, 7.5%, 10% and 15%:SrI2 single crystals were obtained and all as-grown crystals indicated high transparency without visible inclusion. Actual Eu contents in the grown crystals were almost same as nominal compositions. In the X-ray radioluminescence spectra, emission peaks around 435 nm were observed in all crystals. Eu7.5 mol%:SrI2 crystals indicated the highest light yield, 78,000 ph/MeV, and the smallest energy resolution, 3.7%.",

keywords = "Eu concentration, Halide material, Light yield, Scintillator, SrI2 single crystal",

author = "Kei Nishimoto and Yuui Yokota and Shunsuke Kurosawa and Kei Kamada and Akihiro Ymaji and Akira Yoshikawa",

year = "2014",

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doi = "10.1016/j.optmat.2014.02.026",

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volume = "36",

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T1 - Eu concentration dependence on scintillation properties of Eu doped SrI2 single crystals grown by modified micro-pulling-down method

AU - Nishimoto, Kei

AU - Yokota, Yuui

AU - Kurosawa, Shunsuke

AU - Kamada, Kei

AU - Ymaji, Akihiro

AU - Yoshikawa, Akira

PY - 2014/10

Y1 - 2014/10

N2 - Eu doped SrI2 (Eu:SrI2) single crystals with various Eu contents were grown by a modified micro-pulling-down (μ-PD) method and effects of Eu concentration on scintillation properties were investigated. Eu 1%, 5%, 7.5%, 10% and 15%:SrI2 single crystals were obtained and all as-grown crystals indicated high transparency without visible inclusion. Actual Eu contents in the grown crystals were almost same as nominal compositions. In the X-ray radioluminescence spectra, emission peaks around 435 nm were observed in all crystals. Eu7.5 mol%:SrI2 crystals indicated the highest light yield, 78,000 ph/MeV, and the smallest energy resolution, 3.7%.

AB - Eu doped SrI2 (Eu:SrI2) single crystals with various Eu contents were grown by a modified micro-pulling-down (μ-PD) method and effects of Eu concentration on scintillation properties were investigated. Eu 1%, 5%, 7.5%, 10% and 15%:SrI2 single crystals were obtained and all as-grown crystals indicated high transparency without visible inclusion. Actual Eu contents in the grown crystals were almost same as nominal compositions. In the X-ray radioluminescence spectra, emission peaks around 435 nm were observed in all crystals. Eu7.5 mol%:SrI2 crystals indicated the highest light yield, 78,000 ph/MeV, and the smallest energy resolution, 3.7%.

KW - Eu concentration

KW - Halide material

KW - Light yield

KW - Scintillator

KW - SrI2 single crystal

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VL - 36

SP - 1946

EP - 1949

JO - Optical Materials

JF - Optical Materials

IS - 12

ER -

Eu concentration dependence on scintillation properties of Eu doped SrI₂ single crystals grown by modified micro-pulling-down method

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