TY - JOUR
T1 - Optical properties of a Nd-doped SrBr2 crystal grown by the Bridgman technique
AU - Kurosawa, Shunsuke
AU - Yokota, Yuui
AU - Yanagida, Yoshio
AU - Pejchal, Jan
AU - Yamaji, Akihiro
AU - Shoji, Yasuhiro
AU - Kamada, Kei
AU - Yoshikawa, Akira
N1 - Funding Information:
This work is partially supported by (i) the Japan Society for the Promotion of Science (JSPS) Research Fellowships for Young Scientists (S. Kurosawa), (ii) the Funding Program for Next Generation World-Leading Researchers, JSPS , (iii) the Development of Systems and Technology for Advanced Measurement and Analysis, Japan Science and Technology Agency (JST) , (iv) the Adaptable & Seamless Technology Transfer Program through Target-driven R&D (A-STEP), JST , (v) the Association for the Progress of New Chemical Technology , (vi) the Murata Science Foundation and (vii) the Nippon Sheet Glass Foundation for Materials Science and Engineering . In addition, we would like to thank the following persons for their support: Mr. Hiroshi Uemura, Ms. Keiko Toguchi, Ms. Megumi Sasaki and Ms. Yuka Takeda in IMR/Tohoku University.
PY - 2014/5/1
Y1 - 2014/5/1
N2 - We have investigated the optical properties of 1 mol% Nd-doped SrBr 2 crystal grown by the Bridgman technique for an X-ray scintillator application. We succeeded in obtaining a transparent crystal, whose X-ray diffraction was measured under dry condition because of its hygroscopic nature. Roughly, we estimated that 90% of this crystal dissolved within 300 min. under 25 °C and 65-70% humidity. Under excitation by 270 and 400 nm photons several emission peaks originating from 4F3/2 or 4Gi1→4Ii2 (i1=5/2 and 7/2 and i2=13/2, 11/2, and 9/2) transitions of Nd3+ were observed. 1 mol% Nd:SrBr2 had a maximum quantum yield of approximately 45%. Additional emission peaks were observed under X-ray excitation.
AB - We have investigated the optical properties of 1 mol% Nd-doped SrBr 2 crystal grown by the Bridgman technique for an X-ray scintillator application. We succeeded in obtaining a transparent crystal, whose X-ray diffraction was measured under dry condition because of its hygroscopic nature. Roughly, we estimated that 90% of this crystal dissolved within 300 min. under 25 °C and 65-70% humidity. Under excitation by 270 and 400 nm photons several emission peaks originating from 4F3/2 or 4Gi1→4Ii2 (i1=5/2 and 7/2 and i2=13/2, 11/2, and 9/2) transitions of Nd3+ were observed. 1 mol% Nd:SrBr2 had a maximum quantum yield of approximately 45%. Additional emission peaks were observed under X-ray excitation.
KW - A2. Bridgman technique
KW - B1. Halides
KW - B2. Scintillator materials
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U2 - 10.1016/j.jcrysgro.2013.11.082
DO - 10.1016/j.jcrysgro.2013.11.082
M3 - Article
AN - SCOPUS:84898015149
VL - 393
SP - 163
EP - 166
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
SN - 0022-0248
ER -