Crystal growth and scintillation properties of tube shape-controlled Ce-doped Y3Al5O12single crystals grown by micro-pulling-down method

Atsushi Kotaki; Masao Yoshino; Yuui Yokota; Takashi Hanada; Akihiro Yamaji; Satoshi Toyoda; Hiroki Sato; Yuji Ohashi; Shunsuke Kurosawa; Kei Kamada; Akira Yoshikawa

doi:10.35848/1882-0786/abc8ab

Crystal growth and scintillation properties of tube shape-controlled Ce-doped Y₃Al₅O₁₂single crystals grown by micro-pulling-down method

Atsushi Kotaki, Masao Yoshino, Yuui Yokota, Takashi Hanada, Akihiro Yamaji, Satoshi Toyoda, Hiroki Sato, Yuji Ohashi, Shunsuke Kurosawa, Kei Kamada, Akira Yoshikawa

Tohoku University

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

4 Citations (Scopus)

Abstract

Tube shape-controlled Ce-doped Y3Al5O12 (tube-Ce:YAG) single-crystal scintillators were directly grown from a melt via the micro-pulling-down method using a specially-designed iridium crucible. Back-scattering Laue images and X-ray diffraction measurements revealed the tube-Ce:YAG was a single crystal with the YAG phase. Ce distribution in the tangential direction of the tube-Ce:YAG specimen showed that Ce concentrations around the capillary positions were lower than at the corners. This was caused by the small Ce segregation coefficient in the YAG single crystal and from the small convection in the meniscus. The scintillation properties of tube-Ce:YAG specimens were comparable with previously reported Ce:YAG single crystals.

Original language	English
Article number	125503
Journal	Applied Physics Express
Volume	13
Issue number	12
DOIs	https://doi.org/10.35848/1882-0786/abc8ab
Publication status	Published - 2020 Dec 1

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Kotaki, A., Yoshino, M., Yokota, Y., Hanada, T., Yamaji, A., Toyoda, S., Sato, H., Ohashi, Y., Kurosawa, S., Kamada, K., & Yoshikawa, A. (2020). Crystal growth and scintillation properties of tube shape-controlled Ce-doped Y₃Al₅O₁₂single crystals grown by micro-pulling-down method. Applied Physics Express, 13(12), Article 125503. https://doi.org/10.35848/1882-0786/abc8ab

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title = "Crystal growth and scintillation properties of tube shape-controlled Ce-doped Y3Al5O12single crystals grown by micro-pulling-down method",

abstract = "Tube shape-controlled Ce-doped Y3Al5O12 (tube-Ce:YAG) single-crystal scintillators were directly grown from a melt via the micro-pulling-down method using a specially-designed iridium crucible. Back-scattering Laue images and X-ray diffraction measurements revealed the tube-Ce:YAG was a single crystal with the YAG phase. Ce distribution in the tangential direction of the tube-Ce:YAG specimen showed that Ce concentrations around the capillary positions were lower than at the corners. This was caused by the small Ce segregation coefficient in the YAG single crystal and from the small convection in the meniscus. The scintillation properties of tube-Ce:YAG specimens were comparable with previously reported Ce:YAG single crystals.",

author = "Atsushi Kotaki and Masao Yoshino and Yuui Yokota and Takashi Hanada and Akihiro Yamaji and Satoshi Toyoda and Hiroki Sato and Yuji Ohashi and Shunsuke Kurosawa and Kei Kamada and Akira Yoshikawa",

note = "Funding Information: This work was supported by JSPS KAKENHI Early-Career Scientists Grant No. JP19K17191. We thank Arun Paraecattil, Ph.D., from Edanz Group (https://en-author-services.edanzgroup.com/) for editing a draft of this manuscript. Publisher Copyright: {\textcopyright} 2020 The Japan Society of Applied Physics.",

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doi = "10.35848/1882-0786/abc8ab",

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AU - Kotaki, Atsushi

AU - Yoshino, Masao

AU - Yokota, Yuui

AU - Hanada, Takashi

AU - Yamaji, Akihiro

AU - Toyoda, Satoshi

AU - Sato, Hiroki

AU - Ohashi, Yuji

AU - Kurosawa, Shunsuke

AU - Kamada, Kei

AU - Yoshikawa, Akira

N1 - Funding Information: This work was supported by JSPS KAKENHI Early-Career Scientists Grant No. JP19K17191. We thank Arun Paraecattil, Ph.D., from Edanz Group (https://en-author-services.edanzgroup.com/) for editing a draft of this manuscript. Publisher Copyright: © 2020 The Japan Society of Applied Physics.

PY - 2020/12/1

Y1 - 2020/12/1

N2 - Tube shape-controlled Ce-doped Y3Al5O12 (tube-Ce:YAG) single-crystal scintillators were directly grown from a melt via the micro-pulling-down method using a specially-designed iridium crucible. Back-scattering Laue images and X-ray diffraction measurements revealed the tube-Ce:YAG was a single crystal with the YAG phase. Ce distribution in the tangential direction of the tube-Ce:YAG specimen showed that Ce concentrations around the capillary positions were lower than at the corners. This was caused by the small Ce segregation coefficient in the YAG single crystal and from the small convection in the meniscus. The scintillation properties of tube-Ce:YAG specimens were comparable with previously reported Ce:YAG single crystals.

AB - Tube shape-controlled Ce-doped Y3Al5O12 (tube-Ce:YAG) single-crystal scintillators were directly grown from a melt via the micro-pulling-down method using a specially-designed iridium crucible. Back-scattering Laue images and X-ray diffraction measurements revealed the tube-Ce:YAG was a single crystal with the YAG phase. Ce distribution in the tangential direction of the tube-Ce:YAG specimen showed that Ce concentrations around the capillary positions were lower than at the corners. This was caused by the small Ce segregation coefficient in the YAG single crystal and from the small convection in the meniscus. The scintillation properties of tube-Ce:YAG specimens were comparable with previously reported Ce:YAG single crystals.

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Crystal growth and scintillation properties of tube shape-controlled Ce-doped Y₃Al₅O₁₂single crystals grown by micro-pulling-down method

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