TY - JOUR
T1 - The divalent ion codoping effect on Ce-doped (Gd, La)2Si2O7 single crystals
AU - Horiai, Takahiko
AU - Murakami, Rikito
AU - Kurosawa, Shunsuke
AU - Shoji, Yasuhiro
AU - Yamaji, Akihiro
AU - Pejchal, Jan
AU - Ohashi, Yuji
AU - Arakawa, Mototaka
AU - Kamada, Kei
AU - Yokota, Yuui
AU - Yoshikawa, Akira
N1 - Funding Information:
This work was partially supported by (i) Japan Society for the Promotion of Science KAKENHI Grant Number 14462961, 15597934, 15619740 (by Grant-in-Aid for Young Scientists(B), etc., S. Kurosawa), (ii) Bilateral AS CR-JSPS Joint Research Project, (iii) Japan Science and Technology Agency, Development of Systems and Technology for Advanced Measurement and Analysis (SENTAN), (iv) JST, Adaptable & Seamless Technology Transfer Program through Target-driven R&D, (v) the Association for the Progress of New Chemical Technology, (vi) The Murata Science Foundation, (vii) Nippon Sheet Glass Foundation for Materials Science and Engineering, (viii) Tonen General Sekiyu Foundation, (ix) Yazaki Memorial Foundation for Science and Technology, (x) Tokin Science and Technology Promotion Foundation, (xi) Intelligent cosmos research institute, (xii) Frontier Research Institute for Interdisciplinary Sciences, Tohoku University and (xiii) International Collaboration Center Institute for Materials Reserch (ICC-IMR), Tohoku University. In addition, we would like to thank following persons for their support: Mr. Yoshihiro Nakamura of Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University and Mr. Hiroshi Uemura, Ms. Keiko Toguchi, Ms. Megumi Sasaki, Ms. Yuka Takeda and Ms. Kuniko Kawaguchi of IMR, Tohoku University.
PY - 2017/6
Y1 - 2017/6
N2 - Ce-doped (Gd, La)2Si2O7 scintillators have fast decay time and keep high light output even at high temperature (∼150°C). To improve the scintillation properties such as light output and decay time, Ce-doped (Gd, La)2Si2O7 scintillators codoped with the divalent ions (e.g. Mg2+, Ca2+) have been studied. In this study, we focused on the other divalent ions (Sr2+ and Ba2+), and investigated their effect on the scintillation properties and temperature dependence of light output. The absorption due to Ce4+ was not observed for Sr or Ba codoping. The light outputs were degraded by Sr2+ or Ba2+ codoping, while the decay times at room temperature were not changed for the samples codoped with divalent ions. On the other hand, the temperature dependence of light output for Ba-codoped sample was improved, and the light output value at 175°C was 36,000 photons/MeV, which was 93% of that at 25°C.
AB - Ce-doped (Gd, La)2Si2O7 scintillators have fast decay time and keep high light output even at high temperature (∼150°C). To improve the scintillation properties such as light output and decay time, Ce-doped (Gd, La)2Si2O7 scintillators codoped with the divalent ions (e.g. Mg2+, Ca2+) have been studied. In this study, we focused on the other divalent ions (Sr2+ and Ba2+), and investigated their effect on the scintillation properties and temperature dependence of light output. The absorption due to Ce4+ was not observed for Sr or Ba codoping. The light outputs were degraded by Sr2+ or Ba2+ codoping, while the decay times at room temperature were not changed for the samples codoped with divalent ions. On the other hand, the temperature dependence of light output for Ba-codoped sample was improved, and the light output value at 175°C was 36,000 photons/MeV, which was 93% of that at 25°C.
KW - Pyrosilicate
KW - Scintillator
KW - Temperature dependence
UR - http://www.scopus.com/inward/record.url?scp=85017126516&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85017126516&partnerID=8YFLogxK
U2 - 10.1016/j.optmat.2017.02.062
DO - 10.1016/j.optmat.2017.02.062
M3 - Article
AN - SCOPUS:85017126516
VL - 68
SP - 42
EP - 46
JO - Optical Materials
JF - Optical Materials
SN - 0925-3467
ER -