Growth and Scintillation Properties of Directionally Solidified Ce:LaBr3/AEBr2 (AE = Mg, Ca, Sr, Ba) Eutectic System

Kyoung Jin Kim; Yuki Furuya; Kei Kamada; Rikito Murakami; Vladimir V. Kochurikhin; Masao Yoshino; Hiroyuki Chiba; Shunsuke Kurosawa; Akihiro Yamaji; Yasuhiro Shoji; Satoshi Toyoda; Hiroki Sato; Yuui Yokota; Yuji Ohashi; Akira Yoshikawa

doi:10.3390/cryst10070584

Crystals (Jul 2020)

Growth and Scintillation Properties of Directionally Solidified Ce:LaBr3/AEBr2 (AE = Mg, Ca, Sr, Ba) Eutectic System

Kyoung Jin Kim,
Yuki Furuya,
Kei Kamada,
Rikito Murakami,
Vladimir V. Kochurikhin,
Masao Yoshino,
Hiroyuki Chiba,
Shunsuke Kurosawa,
Akihiro Yamaji,
Yasuhiro Shoji,
Satoshi Toyoda,
Hiroki Sato,
Yuui Yokota,
Yuji Ohashi,
Akira Yoshikawa

Affiliations

Kyoung Jin Kim: New Industry Creation Hatchery Center (NICHe), Tohoku University, 6-6-10 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
Yuki Furuya: Institute for Material Research (IMR), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
Kei Kamada: New Industry Creation Hatchery Center (NICHe), Tohoku University, 6-6-10 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
Rikito Murakami: C&A Corporation, 1-16-23 Ichibancho, Aoba-ku, Sendai 980-0811, Japan
Vladimir V. Kochurikhin: C&A Corporation, 1-16-23 Ichibancho, Aoba-ku, Sendai 980-0811, Japan
Masao Yoshino: Institute for Material Research (IMR), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
Hiroyuki Chiba: Institute for Material Research (IMR), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
Shunsuke Kurosawa: New Industry Creation Hatchery Center (NICHe), Tohoku University, 6-6-10 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
Akihiro Yamaji: Institute for Material Research (IMR), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
Yasuhiro Shoji: C&A Corporation, 1-16-23 Ichibancho, Aoba-ku, Sendai 980-0811, Japan
Satoshi Toyoda: New Industry Creation Hatchery Center (NICHe), Tohoku University, 6-6-10 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
Hiroki Sato: New Industry Creation Hatchery Center (NICHe), Tohoku University, 6-6-10 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
Yuui Yokota: Institute for Material Research (IMR), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
Yuji Ohashi: New Industry Creation Hatchery Center (NICHe), Tohoku University, 6-6-10 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
Akira Yoshikawa: New Industry Creation Hatchery Center (NICHe), Tohoku University, 6-6-10 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan

DOI: https://doi.org/10.3390/cryst10070584
Journal volume & issue: Vol. 10, no. 7
p. 584

Abstract

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Ce-doped LaBr3/AEBr2 (AE = Mg, Ca, Sr, Ba) eutectics were grown using the Bridgman–Stockbarger (BS) method in quartz ampoules. The eutectics (AE = Mg and Ca) showed optical transparency like optical fiber bundles. A grown Ce-doped LaBr3/MgBr2 eutectic shows a 355 nm emission ascribed to Ce3+ 4f-5d transition under X-ray excitation. The smaller the ionic size of AE, the higher the light yield of the sample was. The light yield of Ce:LaBr3/MgBr2 was 34,300 photon/MeV, which is higher than Ce:LYSO standard. Scintillation decay time under 662 keV gamma-ray excitation was 18.8 ns.

Published in Crystals

ISSN: 2073-4352 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Crystallography
Website: http://www.mdpi.com/journal/crystals/

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