Development of novel pyrochlore-type scintillators with high light output

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K18209
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Inorganic materials/Physical properties
• Research Institution: Tohoku University
• Principal Investigator: Kurosawa Shunsuke 東北大学, 未来科学技術共同研究センター, 准教授 (80613637)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: パイロクロア / バンドギャップエンジニアリング / 結晶育成 / 蛍光体 / 放射光実験

Outline of Final Research Achievements

We investigated optical and scintillation properties of pyrochlore-type crystals and ceramics grown by micro-pulling down method, spark plasma sintering method and so on. Our goal was to achieve the light output as high as 45,000 photons/MeV, which was fulfilled for some samples. Finally, we succeeded in growing the 2-inch-diameter single crystal with high light output. Moreover, we investigated the band structure to reveal the mechanism responsible for the stability of the light output even at 100 deg. C.

Free Research Field

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