Growth of Zn3Ta2O8 crystal scintillator by a novel melt growth technique named shielded arc melting method

Ryuga Yajima; Kei Kamada; Yui Takizawa; Masao Yoshino; Rikito Murakami; Kyoung Jin Kim; Takahiko Horiai; Akihiro Yamaji; Shunsuke Kurosawa; Yuui Yokota; Hiroki Sato; Satoshi Toyoda; Yuji Ohashi; Takashi Hanada; Akira Yoshikawa

Optical Materials: X (May 2022)

Growth of Zn3Ta2O8 crystal scintillator by a novel melt growth technique named shielded arc melting method

Ryuga Yajima,
Kei Kamada,
Yui Takizawa,
Masao Yoshino,
Rikito Murakami,
Kyoung Jin Kim,
Takahiko Horiai,
Akihiro Yamaji,
Shunsuke Kurosawa,
Yuui Yokota,
Hiroki Sato,
Satoshi Toyoda,
Yuji Ohashi,
Takashi Hanada,
Akira Yoshikawa

Affiliations

Ryuga Yajima: Graduate School of Engineering, Tohoku University, 6-6 Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, 980-8579, Japan; Institute for Material Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan
Kei Kamada: New Industry Creation Hatchery Center, Tohoku University, 6-6-10 Aramaki Aoba, Aoba-ku, Sendai, Miyagi, 980-8579, Japan; C&A Corporation, 1-16-23, Itiban-tyo, Aoba-ku, Sendai, Miyagi, 980-0811, Japan; Corresponding author. Institute for Material Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8579, Japan.
Yui Takizawa: Graduate School of Engineering, Tohoku University, 6-6 Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, 980-8579, Japan; Institute for Material Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan
Masao Yoshino: Institute for Material Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan
Rikito Murakami: Graduate School of Engineering, Tohoku University, 6-6 Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, 980-8579, Japan; C&A Corporation, 1-16-23, Itiban-tyo, Aoba-ku, Sendai, Miyagi, 980-0811, Japan
Kyoung Jin Kim: New Industry Creation Hatchery Center, Tohoku University, 6-6-10 Aramaki Aoba, Aoba-ku, Sendai, Miyagi, 980-8579, Japan
Takahiko Horiai: Institute for Material Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan
Akihiro Yamaji: New Industry Creation Hatchery Center, Tohoku University, 6-6-10 Aramaki Aoba, Aoba-ku, Sendai, Miyagi, 980-8579, Japan
Shunsuke Kurosawa: Institute for Material Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan; New Industry Creation Hatchery Center, Tohoku University, 6-6-10 Aramaki Aoba, Aoba-ku, Sendai, Miyagi, 980-8579, Japan
Yuui Yokota: Institute for Material Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan
Hiroki Sato: New Industry Creation Hatchery Center, Tohoku University, 6-6-10 Aramaki Aoba, Aoba-ku, Sendai, Miyagi, 980-8579, Japan
Satoshi Toyoda: New Industry Creation Hatchery Center, Tohoku University, 6-6-10 Aramaki Aoba, Aoba-ku, Sendai, Miyagi, 980-8579, Japan
Yuji Ohashi: New Industry Creation Hatchery Center, Tohoku University, 6-6-10 Aramaki Aoba, Aoba-ku, Sendai, Miyagi, 980-8579, Japan
Takashi Hanada: Institute for Material Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan
Akira Yoshikawa: Institute for Material Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan; New Industry Creation Hatchery Center, Tohoku University, 6-6-10 Aramaki Aoba, Aoba-ku, Sendai, Miyagi, 980-8579, Japan; C&A Corporation, 1-16-23, Itiban-tyo, Aoba-ku, Sendai, Miyagi, 980-0811, Japan

Journal volume & issue: Vol. 14
p. 100149

Abstract

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In this study, it was demonstrated that Zn3Ta2O8 crystals containing zinc oxide with high vapor pressure can grow in melt by the shielded arc melting method. The radiation response characteristics of the crystals were evaluated. The grown crystals showed an emission peak at 410 nm, ascribed to self-trapped excitation, Ta4+–O2−. The full width at half maximum of the X-ray rocking curve was 655 arcsec. The light output under 662 keV gamma-ray irradiation of Zn3Ta2O8 was approximately 4,700 photons/MeV. The decay time was 17.3 μs? Thus, the shielded arc melting method was shown to be a quick and economic growth technique for the survey of new scintillator materials containing high-vapor-pressure starting components.

Published in Optical Materials: X

ISSN: 2590-1478 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: https://www.journals.elsevier.com/optical-materials-x

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