Growth and Scintillation Properties of Two-Inch-Diameter SrI2(Eu) Single Crystals
| Autor: | Akihiro Yamaji, Yuji Ohashi, Akira Yoshikawa, Valery Chani, Kei Kamada, Yuui Yokota, Masao Yoshino, Shiro Sakuragi, Shunsuke Kurosawa, Shoki Hayasaka, Yasuhiro Shoji |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Induction heating 010308 nuclear & particles physics Crucible chemistry.chemical_element Crystal growth 02 engineering and technology General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Ampoule Temperature gradient Glovebox chemistry 0103 physical sciences General Materials Science Composite material 0210 nano-technology Quartz Carbon |
| Zdroj: | Crystal Growth & Design. 18:3747-3752 |
| ISSN: | 1528-7505 1528-7483 |
| DOI: | 10.1021/acs.cgd.7b01044 |
| Popis: | The sealed vertical Bridgman (VB) method is the main technique used to grow SrI2(Eu) crystals because SrI2(Eu) is very hygroscopic. In this study, we grew SrI2(Eu) single crystals with two-inch diameters and four-inch lengths using the VB method equipped with a removable chamber. The SrI2(Eu) single crystals were produced by the Liquinert process, which requires careful consideration of the crucible material and growth atmosphere. After a review of available materials, carbon crucibles were selected due to their several advantages over traditional quartz ampules: (1) they are suitable for large size crystal growth due to which they do not require any process for sealing of quartz ampule before the growth; (2) ease in controlling the temperature gradient because carbon crucibles can be heated directly via a high frequency induction heating system; and (3) carbon crucibles can assist in removing oxygen and moisture from the melt. The starting material, seed, and hot zone were prepared inside the glovebox in... |
| Databáze: | OpenAIRE |
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