Multiple shaped-crystal growth of oxide scintillators using Mo crucible and die by the edge defined film fed growth method

Kei Kamada, Martin Nikl, Toshiro Kotaki, Hironori Saito, Fumiya Horikoshi, Masayuki Miyazaki, Kyoung Jin Kim, Rikito Murakami, Masao Yoshino, Akihiro Yamaji, Yasuhiro Shoji, Shunsuke Kurosawa, Satoshi Toyoda, Hiroki Sato, Yuui Yokota, Yuji Ohashi, Vladimir Kochurikhin, Akira Yoshikawa

Research output: Contribution to journalArticlepeer-review

Abstract

Edge defined Film Fed Growth (EFG) method with molybdenum (Mo) crucible and die was studied for the growth of several oxide-based single crystals. At first, reactivity between the molybdenum (Mo) metal and oxide melts of Ce:(Lu,Y)2SiO5 (LYSO) Ce:Y2SiO5 (YSO), Ce:Gd3(Al,Ga)5O12 (GAGG), Ce:Lu3Al5O12 (LuAG), Ce:Y3Al5O12 (YAG) was investigated. The experimental and calculation results on the reactivity with Mo show that the aluminum garnets (LuAG, YAG) had the smallest reactivity with Mo metal. On the contrary, GAGG showed the strongest reaction with Mo. Then, the multiple-die grown shaped single crystal growth of Ce:LuAG was demonstrated by EFG method. Single crystal plates up to 320 mm in length were grown successfully. The homogeneity of dopant distribution, Mo contamination, luminescence and scintillation responses of the grown crystals were evaluated.

Original languageEnglish
Article number125510
JournalJournal of Crystal Growth
Volume535
DOIs
Publication statusPublished - 2020 Apr 1

Keywords

  • A2. Single crystal growth
  • B1. Oxides
  • B2. Scintillator materials
  • B3. Scintillators

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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