2011 Fiscal Year Final Research Report
Interaction between charged dust particles and plasma on super-fluid liquid helium surface
| Project/Area Number |
20740318
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Plasma science
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| Research Institution | Yokohama National University |
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Principal Investigator |
SHINDO Masako 横浜国立大学, 工学研究院, 特別研究教員 (10345481)
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| Project Period (FY) |
2008 – 2011
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| Keywords | プラズマ / 微粒子プラズマ / コンプレックスプラズマ / 液体ヘリウム |
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| Research Abstract |
Micron-sized particles with negative charge and larger mass density than liquid helium(LHe) were dropped onto the LHe surface. Here, dust particles and LHe surface were charged with electrons emitted from a hot filament or an rf-plasma. The charge of those particles was found to be smaller than those measured at room temperature. Furthermore, a system with floating particles near the LHe surface was established by applying strong upward electric field(～a few kV/cm) on the LHe surface.
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