| Project/Area Number |
25390141
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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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| Research Field |
Quantum beam science
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| Research Institution | Institute of Physical and Chemical Research |
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Principal Investigator |
Kobayashi Tomohiro 国立研究開発法人理化学研究所, 光量子工学研究領域, 専任研究員 (40282496)
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| Co-Investigator(Renkei-kenkyūsha) |
IKEDA Tokihiro 理化学研究所, 仁科加速器研究センター, 専任研究員 (80301745)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Keywords | イオン照射 / キャピラリー / 集束イオンビーム / 液体中照射 / ナノ粒子 / 触媒 / 放射線還元 / 金属微粒子 / イオンビーム / 触媒微粒子 / 触媒粒子 |
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| Outline of Final Research Achievements |
We have developed the irradiation system by using a tapered glass capillary with thin lid at the tip. Through the capillary set at the end of the beamline, ion beam is ejected into liquid in container. Ions are accelerated with an electrostatic accelerator. The diameter of the ion beam is controlled with that of inner diameter of the capillary tip from several um to mm. The promising applications of material modification using this system will be nanoparticle synthesis. Ion irradiation can reduce metallic ions strongly by densely-formed reductive radicals. We have obtained Au, Ag, Ni, Pt, Cu single-metal nanoparticles and Pt-Cu bimetallic nanoparticles so far. The size, shape, composition of particles were observed by using electron microscope equipped with energy dispersive X-ray spectrometer.
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