Growth of Eu doped LiBr/BaBr2 eutectic and its thermal neutron response

Yui Takizawa; Kei Kamada; Masao Yoshino; Ryga Yajima; Kyoung Jin Kim; Rikito Murakami; Vladimir V. Kochurikhin; Akira Yoshikawa

Optical Materials: X (Feb 2023)

Growth of Eu doped LiBr/BaBr2 eutectic and its thermal neutron response

Yui Takizawa,
Kei Kamada,
Masao Yoshino,
Ryga Yajima,
Kyoung Jin Kim,
Rikito Murakami,
Vladimir V. Kochurikhin,
Akira Yoshikawa

Affiliations

Yui Takizawa: Institute for Material Research, Tohoku University, 2-1-1 Katahira Aoba-ku, Sendai, Miyagi, 980-8577, Japan; Department of Materials Science, Graduate School of Engineering, Tohoku University, 6-6 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8579, Japan
Kei Kamada: New Industry Creation Hatchery Center, Tohoku University, 6-6-10 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8579, Japan; C&A Corporation, 1-16-23, Itiban-tyo, Aoba-ku, Sendai, Miyagi, 980-0811, Japan; Corresponding author. Tohoku University New Industry Creation Hatchery Center, 6-6-10 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8579, Japan.
Masao Yoshino: Institute for Material Research, Tohoku University, 2-1-1 Katahira Aoba-ku, Sendai, Miyagi, 980-8577, Japan
Ryga Yajima: Institute for Material Research, Tohoku University, 2-1-1 Katahira Aoba-ku, Sendai, Miyagi, 980-8577, Japan; Department of Materials Science, Graduate School of Engineering, Tohoku University, 6-6 Aoba, Aramaki, Aoba-ku, Sendai, Miyagi, 980-8579, Japan
Kyoung Jin Kim: Institute for Material Research, Tohoku University, 2-1-1 Katahira Aoba-ku, Sendai, Miyagi, 980-8577, Japan
Rikito Murakami: Institute for Material Research, Tohoku University, 2-1-1 Katahira Aoba-ku, Sendai, Miyagi, 980-8577, Japan; C&A Corporation, 1-16-23, Itiban-tyo, Aoba-ku, Sendai, Miyagi, 980-0811, Japan
Vladimir V. Kochurikhin: C&A Corporation, 1-16-23, Itiban-tyo, Aoba-ku, Sendai, Miyagi, 980-0811, 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 Aoba, Aramaki, 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. 17
p. 100224

Abstract

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In this study, Eu:6LiBr/BaBr2 with a high Li concentration was developed as a novel neutron scintillator. Here, an Eu-doped BaBr2 phase acted as a scintillator and 6Li-containing LiBr phase acted as a neutron capturer. Eu:6LiBr/BaBr2 eutectics were fabricated via the vertical Bridgman technique in quartz ampoules. The scintillation performance of Ce:6LiBr/LaBr3 was measured using electron and neutron irradiation to evaluate its potential as a neutron scintillator. The grown Eu:6LiBr/BaBr2 eutectic exhibited a lamellar eutectic structure and optical transparency as well as a 410 nm emission due to the Eu2+ 5d–4f transition. The light yield under thermal neutron excitation was estimated to be 5600 photons/neutrons. The scintillation decay time was 550 ns.

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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