Development of novel growth methods for halide single crystals

Yuui Yokota; Shunsuke Kurosawa; Yasuhiro Shoji; Yuji Ohashi; Kei Kamada; Akira Yoshikawa

doi:10.1016/j.optmat.2016.08.035

Development of novel growth methods for halide single crystals

Yuui Yokota, Shunsuke Kurosawa, Yasuhiro Shoji, Yuji Ohashi, Kei Kamada, Akira Yoshikawa

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

21 Citations (Scopus)

Abstract

We developed novel growth methods for halide scintillator single crystals with hygroscopic nature, Halide micro-pulling-down [H-μ-PD] method and Halide Vertical Bridgman [H-VB] method. The H-μ-PD method with a removable chamber system can grow a single crystal of halide scintillator material with hygroscopicity at faster growth rate than the conventional methods. On the other hand, the H-VB method can grow a large bulk single crystal of halide scintillator without a quartz ampule. CeCl₃, LaBr₃, Ce:LaBr₃ and Eu:SrI₂ fiber single crystals could be grown by the H-μ-PD method and Eu:SrI₂ bulk single crystals of 1 and 1.5 inch in diameter could be grown by the H-VB method. The grown fiber and bulk single crystals showed comparable scintillation properties to the previous reports using the conventional methods.

Original language	English
Pages (from-to)	46-51
Number of pages	6
Journal	Optical Materials
Volume	65
DOIs	https://doi.org/10.1016/j.optmat.2016.08.035
Publication status	Published - 2017 Mar 1

Keywords

Crystal growth
Halide scintillator
Micro-pulling-down method
Vertical Bridgman method

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10.1016/j.optmat.2016.08.035

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title = "Development of novel growth methods for halide single crystals",

abstract = "We developed novel growth methods for halide scintillator single crystals with hygroscopic nature, Halide micro-pulling-down [H-μ-PD] method and Halide Vertical Bridgman [H-VB] method. The H-μ-PD method with a removable chamber system can grow a single crystal of halide scintillator material with hygroscopicity at faster growth rate than the conventional methods. On the other hand, the H-VB method can grow a large bulk single crystal of halide scintillator without a quartz ampule. CeCl3, LaBr3, Ce:LaBr3 and Eu:SrI2 fiber single crystals could be grown by the H-μ-PD method and Eu:SrI2 bulk single crystals of 1 and 1.5 inch in diameter could be grown by the H-VB method. The grown fiber and bulk single crystals showed comparable scintillation properties to the previous reports using the conventional methods.",

keywords = "Crystal growth, Halide scintillator, Micro-pulling-down method, Vertical Bridgman method",

author = "Yuui Yokota and Shunsuke Kurosawa and Yasuhiro Shoji and Yuji Ohashi and Kei Kamada and Akira Yoshikawa",

note = "Funding Information: This work was partially supported by the New Energy and Industrial Technology Development Organization , Ministry of Education, Culture, Sports, Science and Technology of Japanese government , Grant-in-Aid for Young Scientists , Development of Systems and Technology for Advanced Measurement and Analysis , Japan Science and Technology Agency and Adaptable & Seamless Technology Transfer Program through Target-driven R&D [A-STEP] (JST). Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2017",

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doi = "10.1016/j.optmat.2016.08.035",

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T1 - Development of novel growth methods for halide single crystals

AU - Yokota, Yuui

AU - Kurosawa, Shunsuke

AU - Shoji, Yasuhiro

AU - Ohashi, Yuji

AU - Kamada, Kei

AU - Yoshikawa, Akira

N1 - Funding Information: This work was partially supported by the New Energy and Industrial Technology Development Organization , Ministry of Education, Culture, Sports, Science and Technology of Japanese government , Grant-in-Aid for Young Scientists , Development of Systems and Technology for Advanced Measurement and Analysis , Japan Science and Technology Agency and Adaptable & Seamless Technology Transfer Program through Target-driven R&D [A-STEP] (JST). Publisher Copyright: © 2016 Elsevier B.V.

PY - 2017/3/1

Y1 - 2017/3/1

N2 - We developed novel growth methods for halide scintillator single crystals with hygroscopic nature, Halide micro-pulling-down [H-μ-PD] method and Halide Vertical Bridgman [H-VB] method. The H-μ-PD method with a removable chamber system can grow a single crystal of halide scintillator material with hygroscopicity at faster growth rate than the conventional methods. On the other hand, the H-VB method can grow a large bulk single crystal of halide scintillator without a quartz ampule. CeCl3, LaBr3, Ce:LaBr3 and Eu:SrI2 fiber single crystals could be grown by the H-μ-PD method and Eu:SrI2 bulk single crystals of 1 and 1.5 inch in diameter could be grown by the H-VB method. The grown fiber and bulk single crystals showed comparable scintillation properties to the previous reports using the conventional methods.

AB - We developed novel growth methods for halide scintillator single crystals with hygroscopic nature, Halide micro-pulling-down [H-μ-PD] method and Halide Vertical Bridgman [H-VB] method. The H-μ-PD method with a removable chamber system can grow a single crystal of halide scintillator material with hygroscopicity at faster growth rate than the conventional methods. On the other hand, the H-VB method can grow a large bulk single crystal of halide scintillator without a quartz ampule. CeCl3, LaBr3, Ce:LaBr3 and Eu:SrI2 fiber single crystals could be grown by the H-μ-PD method and Eu:SrI2 bulk single crystals of 1 and 1.5 inch in diameter could be grown by the H-VB method. The grown fiber and bulk single crystals showed comparable scintillation properties to the previous reports using the conventional methods.

KW - Crystal growth

KW - Halide scintillator

KW - Micro-pulling-down method

KW - Vertical Bridgman method

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JO - Optical Materials

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Development of novel growth methods for halide single crystals

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Keywords

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