Crystals
(Jul 2020)
Growth and Scintillation Properties of Directionally Solidified Ce:LaBr<sub>3</sub>/AEBr<sub>2</sub> (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
Abstract
Read online
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.
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