| Project/Area Number |
19K04525
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 21060:Electron device and electronic equipment-related
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| Research Institution | Iwate University |
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Principal Investigator |
Abe Takami 岩手大学, 理工学部, 助教 (20786420)
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| Project Period (FY) |
2019-04-01 – 2022-03-31
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| Project Status |
Completed (Fiscal Year 2021)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | 酸化亜鉛単結晶 / 光導電型紫外線センサ / シンチレータ / 放射線検出器 / ZnO単結晶 / YAP:Ce / 光導電特性 |
|---|
| Outline of Research at the Start |
本研究では、酸化亜鉛(ZnO)単結晶の光導電特性に及ぼす結晶表面の影響を明らかにしZnO UVセンサの特性改善を目指す。また、放射線耐性が高くUV光を発光するYAP:CeシンチレータをZnO UVセンサ表面へ直接積層することで表面の不活性化を図り、光導電型ZnO UVセンサの特性を改善するとともに、放射線耐性の高い高感度YAP:Ce/ZnOシンチレーション放射線検出器を実現する。
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| Outline of Final Research Achievements |
Ce-doped yttrium aluminum perovskite (YAP:Ce) powders were synthesized by the molten salt method. By dispersing the powder in resin and depositing directly on a zinc oxide UV sensor, it was confirmed that it operates as a radiation (X-ray) detector. By depositing resin on the UV sensor, gas adsorption on the UV sensor could be prevented and the effect of atmosphere could be suppressed while maintaining the characteristics of the sensor.
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| Academic Significance and Societal Importance of the Research Achievements |
潮解性がなく、応答が速いYAP:Ceシンチレータ粉末の合成条件を明らかにし、YAP:Ceシンチレータ粉末と光導電型ZnO紫外線センサと組み合わせ、放射線検出器作製した。本センサは定電圧で動作可能であり、小型で軽量、堅牢な新しい放射線検出器の可能性を示した。
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