2012 Fiscal Year Final Research Report
Fundamental study of ionic plasmas in atmosphere
| Project/Area Number |
24654192
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Plasma science
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| Research Institution | Kyoto University |
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Principal Investigator |
SAKAI Osamu 京都大学, 工学研究科, 准教授 (30362445)
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| Project Period (FY) |
2012
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| Keywords | イオン性プラズマ / 誘電特性 / 密度測定 |
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| Research Abstract |
We proposed a set of theoretical fundamentals on groups of positive and negative ions in atmosphere (“atmospheric ionic plasmas” hereafter), performed numerical analysis to reveal their properties, and investigated them in e xperiments with confirmation of new noninvasive measurement. Their dielectric properties are expressed using dielectric functions with nonlinearity, which agrees so well with experimental results. According to numerical analysis and experimental verificati ons, atmospheric ionic plasmas vanish in recombination in space, and their lifetimes are quite long in second order.
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