Growth and luminescence properties of Eu-doped HfO2/α-Al2O3 eutectic scintillator

作     者：Kei Kamada Kosuke Hishinuma Shunsuke Kurosawa Akihiro Yamaji Yasuhiro Shoji Jan Pejchal Yuji Ohashi Yuui Yokota Akira Yoshikawa 无

作者机构：New Industry Creation Hatchery CenterTohoku University6-6-10 AobaAramakiAoba-kuSendaiMiyagi980-8579Japan C&A Corporation T-Biz6-6-40 AobaAramakiAoba-kuSendaiMiyagi 980-8579Japan Institute for Material ReseachTohoku University2-1-1 Katahira Aoba-kuSendal Miyagi980-8577Japan Institute of Physics AS CRCukrovarnicka 1016253 PragueCzech Republic 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2016年第34卷第8期

页      面：796-801页

核心收录：

学科分类：081702[工学-化学工艺] 0709[理学-地质学] 0819[工学-矿业工程] 08[工学] 0817[工学-化学工程与技术] 0708[理学-地球物理学] 0703[理学-化学] 

基　　金：Project supported by the Funding Program for Next Generation World-Leading Researchers JSPS Development of Systems and Technology for Advanced Measurement and Analysis Japan Science and Technology Agency (JST) Adaptable & Seamless Technology Transfer Program through Target-driven R&D (A-STEP) JST Japan Society for the Promotion of Science (JSPS) Grant-in-Aid for Exploratory Research JSPS Research Fellowships for Young Scientists the Health Labour Sciences Research Grant the Ministry of Health Labour and Welfare and Czech MEYS KONTAKT Cz-jp Collaboration LH14266 Project Crystal Clear Collaboration in CERN and EC Marie Curie Initial Training Network LUMINET (316906) 

主　　题：eutectic scintillator micro-pulling down method rare earths 

摘      要：HfO2/a-A12O3 eutectics were grown by the micro-pulling down （μ-PD） method at the composition of 63.2 mol.% of-A1203, 35.512 mol.% HfO2, 0.92 mol.% Eu203 and 0.368 tool.% Y2O3. Rod phases with around 3-4 μm diameter were observed on the transverse cross-section. The phase-separated scintillator fibers （PSSFs） structure with fibers of around 3-4 μm diameter and 10-20 μm length was observed. The electron back scattering patterns indicated crystal orientation of [101] for monoclinic HfO2 rod phase and [0001] for μt-A1203 matrix in the transverse cross-section. Eu3＋ 4f-4f emission was observed at 550-750 nm.