Development of novel pyrochlore-type scintillators with high light output
Project/Area Number |
15K18209
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Inorganic materials/Physical properties
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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)
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Project Period (FY) |
2015-04-01 – 2017-03-31
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Project Status |
Completed (Fiscal Year 2016)
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Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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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 / シンチレータ / パイロクロア型結晶 |
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.
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Report
(3 results)
Research Products
(35 results)
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[Journal Article] The divalent ion codoping effect on Ce-doped (Gd, La)2Si2O7 single crystals2017
Author(s)
Takahiko Horiai, Rikito Murakami, Shunsuke Kurosawa3, Yasuhiro Shoji, Akihiro Yamaji, Jan Pejchal, Yuji Ohashi, Mototaka Arakawa, Kei Kamada, Yuui Yokota and Akira Yoshikawa
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Journal Title
Optical Materials
Volume: 印刷中
Pages: 42-46
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Temperature Dependence of Luminescence Properties for Gadolinium-pyrosilicate Scintillator2016
Author(s)
Takahiko Horiai, Shunsuke Kurosawa, Rikito Murakami, Vitezslav Jary, Akihiro Yamaji, Yasuhiro Shoji, Yuji Ohashi, Jan Pejchal, Kei Kamada, Yuui Yokota, Martin Nikl and Akira Yoshikawa
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Journal Title
JPS Conf. Proc.
Volume: 11
Pages: 20007-20007
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Scintillation properties of Zr co-doped Ce:(Gd, La)2Si2O7 grown by the Czochralski process2016
Author(s)
Rikito Murakami, Shunsuke Kurosawa, Yasuhiro Shoji, Vitezslav Jary, Yuji Ohashi, Jan Pejchal, Yuui Yokota, Kei Kamada, Martin Nikl, Akira Yoshikawa
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Journal Title
Radiation Measurements
Volume: -
Pages: 162-165
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Presentation] Development of a Position-Sensitive Gamma-ray Camera Using Novel Scintillator and an MPPC2016
Author(s)
S. Kurosawa, Y. Shoji, R. Murakami, T. Horiai, A. Yamaji, H. Chiba, Y. Ohashi, K. Kamada, Y. Yokota, A. Yoshikawa
Organizer
The 14th Vienna Conference on Instrumentation (VCI2016)
Place of Presentation
Vienna, Austria
Year and Date
2016-02-17
Related Report
Int'l Joint Research
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[Presentation] The Divalent Codoping Effect of Ce-Doped (Gd, La) 2Si2O7 Single Crystals2016
Author(s)
Takahiko Horiai, Rikito Murakami, Shunsuke Kurosawa, Yasuhiro Shoji, Akihiro Yamaji, Jan Pejchal, Yuji Ohashi, Mototaka Arakawa, Kei Kamada, Yuui Yokota, Akira Yoshikawa
Organizer
The 6th International Workshop on Photoluminescence in RARE EARTHS (PRE16)
Place of Presentation
グリーンビレッジ、米国
Related Report
Int'l Joint Research
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[Presentation] Fabrication and Optical Properties of Eu, Tb-doped La2Hf2O7 Ceramics2016
Author(s)
Shunsuke Kurosawa, Koichi Harata, Hiroyuki Chiba, Shohei Kodama, Akihiro Yamaji, Jan Pejchal, Yuji Ohashi, Kei Kamada, Yuui Yokota, Akira Yoshikawa
Organizer
7th International Conference on Optical, Optoelectronic and Photonic Materials and Applications (ICOOPMA2016)
Place of Presentation
モントリオール、カナダ
Related Report
Int'l Joint Research
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[Presentation] Optical Properties of Nd-doped (Gd, La)2Si2O7 Crystal2016
Author(s)
Shunsuke Kurosawa, Toetsu Shishido, Takahiko Horiai, Takamasa Sugawara, Kunio Yubuta, Pejchal Jan, Akihiro Yamaji, Yuji Ohashi, Yuui Yokota, Kei Kamada, Akira Yoshikawa
Organizer
The 10th Asian Meeting on Electroceramics (AMEC-10, 2016)
Place of Presentation
台北、台湾
Related Report
Int'l Joint Research
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[Presentation] Luminescent properties of Ce and Sc-admix GPS Scintillator2015
Author(s)
S. Kurosawa, T. Shishido, R. Murakami, T. Horiai, T. Sugawara, A. Nomura, K. Yubuta, Y. Shoji, Y. Yokota, J. Pejchal, Y. Ohashi, K. Kamada, A. Yoshikawa
Organizer
9th International Conference on Luminescent Detectors and Transformers of Ionizing Radiation (LUMDETR 2015)
Place of Presentation
Tartu, Estonia
Year and Date
2015-09-22
Related Report
Int'l Joint Research
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[Presentation] Luminescent Properties Of Ce-Doped Gadolinium Pyrosilicate Crystals Grown By The Floating Zone Method2015
Author(s)
Shunsuke Kurosawa, Toetsu Shishido, Takamasa Sugawara, Akiko Nomura, Kunio Yubuta, Yasuhiro Shoji, Rikito Murakami, Yuui Yokota, Jan Pejchal, Yuji Ohashi, Kei Kamada, Akira Yoshikawa
Organizer
2015 ACCGE-20
Place of Presentation
Big Sky, Montana, USA
Year and Date
2015-08-03
Related Report
Int'l Joint Research
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[Presentation] Scintillation Properties of Large Size Ce:La-GPS Crystals Grown by the2015
Author(s)
S. Kurosawa, Y. Shoji, R. Murakami, M. Kitaura, V. Jary, J. Pejchal, Y. Ohashi, Y. Yokota, K. Kamada, A. Onishi, M. Nikl, A. Yoshikawa
Organizer
13th International Conference on Inorganic Scintillators and Their Applications (SCINT2015)
Place of Presentation
Berkeley, CA, USA
Year and Date
2015-06-11
Related Report
Int'l Joint Research
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[Presentation] Radiation Hardness of Gd-Based Oxide Scintillators2015
Author(s)
S. Kurosawa, R. Murakami, A. Yamaji, Y. Shoji, J. Pejchal, Y. Ohashi, Y. Yokota, K. Kamada, A. Yoshikawa
Organizer
13th International Conference on Inorganic Scintillators and Their Applications (SCINT2015)
Place of Presentation
Berkeley, CA, USA
Year and Date
2015-06-08
Related Report
Int'l Joint Research
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