[21a-431B-1~8] 15.1 Bulk crystal growth

[21a-431B-3] Preparation of BaI₂-LuI₃ phase diagram and crystal growth for the development of new halide scintillator.

〇(M1)Kazuya Origuchi¹, Yuui Yokota², Masao Yoshino¹, Akihiro Yamaji¹, Yuji Ohashi², Shunsuke Kurosawa^2,3, Kei Kamada^2,4, Akira Yoshikawa^1,2,4 (1.IMR, Tohoku Univ., 2.NICHe, Tohoku Univ., 3.Yamagata Univ., 4.C&A)

Keywords:halide scintillator, new phase diagram

Halide single crystals of chloride, bromide and iodide are known to exhibit a high light emission and high energy resolution due to its narrow band gap.However,halide materials are typically having high hygroscopicity, and there are few studies in new halide material systems except for crystal development of material which phase diiagrams are reported.
Therefore,in this study,we prepare the phase diagrams of BaI₂ and LuI₃ without previous report,and study the possibility of scintillator single crystals growth in BaI₂-LuI₃ system.