TY - JOUR
T1 - Growth and optical properties of LiF/LaF3 eutectic crystals
AU - Kurosawa, Shunsuke
AU - Yamaji, Akihiro
AU - Yokota, Yuui
AU - Futami, Yoshisuke
AU - Nishimoto, Kei
AU - Kawaguchi, Noriaki
AU - Fukuda, Kentaro
AU - Yoshikawa, Akira
N1 - Funding Information:
This work is partially supported by (i) 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) Development of Systems and Technology for Advanced Measurement and Analysis, Japan Science and Technology Agency (JST) , (iv) 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 , (vii) Nippon Sheet Glass Foundation for Materials Science and Engineering .
PY - 2014/8
Y1 - 2014/8
N2 - Neutron imaging devices employing a scintillator can be used in various fields, and eutectic crystals can be suitable for the imaging with a fine position resolution of a few hundred micrometers. Since LiF and LaF3 have different refractive indexes of 1.41 and 1.64 at 300nm, respectively, the eutectic crystal is expected to behave as a scintillator with light guiding properties. Thus, the optical properties of Ce-doped LiF/LaF3 eutectic crystal grown by micro-pulling down method were investigated. The light output of LiF/Ce:LaF3 eutectic crystal was relatively small. The emission peaks at 300nm originating from Ce3+ of 5d-4f transition were observed under excitation by UV photons and 5.5MeV alpha rays. Moreover, the photo-luminescence decay time of Ce-doped LiF/LaF3 eutectic crystal was estimated to be 17±1ns.
AB - Neutron imaging devices employing a scintillator can be used in various fields, and eutectic crystals can be suitable for the imaging with a fine position resolution of a few hundred micrometers. Since LiF and LaF3 have different refractive indexes of 1.41 and 1.64 at 300nm, respectively, the eutectic crystal is expected to behave as a scintillator with light guiding properties. Thus, the optical properties of Ce-doped LiF/LaF3 eutectic crystal grown by micro-pulling down method were investigated. The light output of LiF/Ce:LaF3 eutectic crystal was relatively small. The emission peaks at 300nm originating from Ce3+ of 5d-4f transition were observed under excitation by UV photons and 5.5MeV alpha rays. Moreover, the photo-luminescence decay time of Ce-doped LiF/LaF3 eutectic crystal was estimated to be 17±1ns.
KW - Eutectic crystal
KW - LiF
KW - Neutron scintillator
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U2 - 10.1016/j.jeurceramsoc.2014.01.037
DO - 10.1016/j.jeurceramsoc.2014.01.037
M3 - Article
AN - SCOPUS:84897963930
SN - 0955-2219
VL - 34
SP - 2111
EP - 2115
JO - Journal of the European Ceramic Society
JF - Journal of the European Ceramic Society
IS - 9
ER -