TY - JOUR
T1 - Novel optical-guiding crystal scintillator composed of an Eu-doped SrI2 core and glass cladding
AU - Yajima, Ryuga
AU - Kamada, Kei
AU - Takizawa, Yui
AU - Kutsuzawa, Naoko
AU - Sasaki, Rei
AU - Yoshino, Masao
AU - Horiai, Takahiko
AU - Murakami, Rikito
AU - Kim, Kyoung Jin
AU - Kochurikhin, Vladimir V.
AU - Yamaji, Akihiro
AU - Kurosawa, Shunsuke
AU - Yokota, Yuui
AU - Sato, Hiroki
AU - Toyoda, Satoshi
AU - Ohashi, Yuji
AU - Takashi, Hanada
AU - Yoshikawa, Akira
N1 - Funding Information:
This work is partially supported by KAKENHI, Japan Society for the Promotion of Science , grant numbers; 17H06159 , 18H01222 , 19H00672 , 19H00881 , 19K12626 and 20K20488 .
Funding Information:
This work is partially supported by KAKENHI, Japan Society for the Promotion of Science, grant numbers; 17H06159, 18H01222, 19H00672, 19H00881, 19K12626 and 20K20488. In addition, we would like to thank following people for their support: Mr. Hideyuki Kiue (Tobita Rika-Glass Works), Mr. Kuniyoshi Takeda (All Navi Quartz Corporation), Yoshiyuki Usuki (Mirai Imaging Corporation), Mr. Hideyuki Magara (Material Solutions Center, Tohoku University), Ms. Keiko Toguchi, Ms. Megumi Sasaki and Ms. Kuniko Kawaguchi (Institute for Materials Research, Tohoku University). We also would like to thank Editage (www.editage.com) for English language editing.
Publisher Copyright:
© 2023 Elsevier Ltd and Techna Group S.r.l.
PY - 2023
Y1 - 2023
N2 - Scintillators are used not only as single crystals in radiation detection systems but also as arrays, columns, and fibers. In this study, a novel optical-guiding crystal scintillator (OCS) was fabricated using an Eu:SrI2 crystal as the core and borosilicate glass as the cladding. The OCS has an elongated shape and can be flexibly processed like an optical fiber. Furthermore, because inorganic scintillator crystals are used as the core, the OCS has high sensitivity to high-energy radiation, such as γ- and X-ray radiation, unlike plastic scintillators. In this study, by observing the cross section of the fabricated OCS, identifying the crystal structure, and investigating the radioluminescence spectrum under X-ray irradiation, OCS fabrication in accordance with the OCS design specifications was confirmed, and the SrI2 crystal structure and Eu2+ 5d–4f luminescence were maintained. The γ-ray responses, such as light yield and decay time, were also investigated.
AB - Scintillators are used not only as single crystals in radiation detection systems but also as arrays, columns, and fibers. In this study, a novel optical-guiding crystal scintillator (OCS) was fabricated using an Eu:SrI2 crystal as the core and borosilicate glass as the cladding. The OCS has an elongated shape and can be flexibly processed like an optical fiber. Furthermore, because inorganic scintillator crystals are used as the core, the OCS has high sensitivity to high-energy radiation, such as γ- and X-ray radiation, unlike plastic scintillators. In this study, by observing the cross section of the fabricated OCS, identifying the crystal structure, and investigating the radioluminescence spectrum under X-ray irradiation, OCS fabrication in accordance with the OCS design specifications was confirmed, and the SrI2 crystal structure and Eu2+ 5d–4f luminescence were maintained. The γ-ray responses, such as light yield and decay time, were also investigated.
KW - Eu:SrI
KW - Nuclear applications
KW - Optical properties
KW - Scintillator
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U2 - 10.1016/j.ceramint.2022.12.264
DO - 10.1016/j.ceramint.2022.12.264
M3 - Article
AN - SCOPUS:85147362431
SN - 0272-8842
JO - Ceramics International
JF - Ceramics International
ER -