| Project/Area Number |
17H06126
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| Research Category |
Grant-in-Aid for Scientific Research (S)
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| Allocation Type | Single-year Grants |
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| Research Field |
Quantum beam science
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| Research Institution | High Energy Accelerator Research Organization |
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Principal Investigator |
Miyake Yasuhiro 大学共同利用機関法人高エネルギー加速器研究機構, 物質構造科学研究所, 研究員 (80209882)
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| Co-Investigator(Kenkyū-buntansha) |
永谷 幸則 大学共同利用機関法人高エネルギー加速器研究機構, 物質構造科学研究所, 特別准教授 (00393421)
吉田 光宏 大学共同利用機関法人高エネルギー加速器研究機構, 加速器研究施設, 准教授 (60391710)
林崎 規託 東京工業大学, 科学技術創成研究院, 教授 (50334537)
荻津 透 大学共同利用機関法人高エネルギー加速器研究機構, 超伝導低温工学センター, 教授 (30185524)
大西 純一 国立研究開発法人理化学研究所, 仁科加速器科学研究センター, 特別嘱託技師 (30634703)
鳥養 映子 山梨大学, その他部局等, 客員教授 (20188832)
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| Project Period (FY) |
2017-05-31 – 2022-03-31
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| Project Status |
Completed (Fiscal Year 2023)
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| Budget Amount *help |
¥207,090,000 (Direct Cost: ¥159,300,000、Indirect Cost: ¥47,790,000)
Fiscal Year 2021: ¥15,210,000 (Direct Cost: ¥11,700,000、Indirect Cost: ¥3,510,000)
Fiscal Year 2020: ¥29,770,000 (Direct Cost: ¥22,900,000、Indirect Cost: ¥6,870,000)
Fiscal Year 2019: ¥60,710,000 (Direct Cost: ¥46,700,000、Indirect Cost: ¥14,010,000)
Fiscal Year 2018: ¥67,340,000 (Direct Cost: ¥51,800,000、Indirect Cost: ¥15,540,000)
Fiscal Year 2017: ¥34,060,000 (Direct Cost: ¥26,200,000、Indirect Cost: ¥7,860,000)
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| Keywords | ミュオン / ミュオン加速 / 超低速ミュオン / レーザー / 顕微鏡 / 量子可干渉性 / 波動性 / スピン / 偏極 |
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| Outline of Final Research Achievements |
By combining the novel knowledge of optical and accelerator science and electron microscopy we are developing transmission muon microscopy and establish a completely new microscopic imaging technique. Muons, which are 200 times heavier than electrons, have an ability to penetrate a sample about 200 times at the same velocity and have a potential ability to visualize electromagnetic fields because they are charged particles. By increasing the re-acceleration energy, it is potentially possible to achieve 3D tomographic measurements in a region of 10 μm thickness, which is unreachable even with an ultra-high-voltage electron microscope, and to observe live cells through the microscope. A completely new microscope that bridges the resolution gap between electron microscopes and optical microscopes will be born. In addition, ultra-slow muons will be re-accelerated to produce a high-brilliance muon microbeam for muon diffraction experiments.
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| Academic Significance and Societal Importance of the Research Achievements |
10 MeVまで再加速したミュオンの透過能力と、超低速ミュオン源の極小エミッタンス性を生かせば、超高圧電子顕微鏡をもってしても到達不可能な10μm厚超領域のトモグラフィ3次元解析が可能になり、細胞全体の微細構造の全貌、神経細胞のネットワーク微細構造までをも明らかにする事ができる。高い透過能力は、SiN製の薄い窓を持つ生体試料用の耐真空セルの使用を可能にし、生きた細胞の透過観察を可能にすることができる。最終的には、多段冷却と収差補正により、分解能0.1 nmの性能向上させることができ、学術的、社会的意義は、極めて大きいといえる。
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| Assessment Rating |
Result (Rating)
A-: Progress in the research is steadily towards the initial goal. However, further efforts are necessary as a part of the research progress is delayed.
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