| Project/Area Number |
23360419
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Nuclear engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
MATSUYAMA Shigeo 東北大学, 工学(系)研究科(研究院), 准教授 (70219525)
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| Co-Investigator(Kenkyū-buntansha) |
ISHII Keizo 東北大学, 大学院・工学研究科, リサーチプロフェッサー (00134065)
TERAKAWA Atsuki 東北大学, 大学院・工学研究科, 准教授 (10250854)
KIKUCHI Yohei 東北大学, 大学院・工学研究科, 准教授 (50359535)
MA Cyanjan 福岡女子大学, 人間環境学部, 准教授 (80405555)
山崎 浩道 東北大学, サイクロトロンラジオアイソトープセンター, 教授 (00166654)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
Fiscal Year 2011: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
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| Keywords | サブミクロンビーム / マルチモーダル分析システム / ナノビーム / 全元素分析 / PM2.5 / 個別粒子分析 / 電圧安定度 / セパレート配置 / マルチモーダル分析 / 輝度 / セパレートトリプレット / マルチモーダル |
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| Research Abstract |
In this study, the nanobeam formation system and multi-modal analysis system were developed. A beam current of 150 pA was achieved with an spatial resolution of 0.6*0.8um2 by optimizing an accelerator system and the lens system.
We applied the system to the analysis of PM2.5 atmospheric fine particles. Fine PM2.5 particles were analysed by PIXE, using the energy loss distribution of the samples measured by Off-Axis STIM. PM 2.5 particles are collected at Fukuoka city using cascade impactor. Clay, cement manufacture, coal combustion, the steel industry were regarded as the source of these particles. This system will be useful for evaluating the source of origin of these particles.
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