Interaction between charged dust particles and plasma on super-fluid liquid helium surface

超流液氦表面带电尘埃粒子与等离子体的相互作用

• 批准号: 20740318
• 负责人: SHINDO Masako
• 金额: $ 3.24万
• 依托单位: Yokohama National University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20740318/
• 关键词: 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; プラズマ科学

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.

具有负电荷且质量密度大于液氦(LHe)的微米级粒子被滴到液氦表面。在这里，尘埃颗粒和LHe表面被从热丝或射频等离子体发射的电子带电。这些粒子的电荷被发现比在室温下测得的要小。此外，通过在液氦表面施加较强的向上电场(~几千伏/厘米)，建立了液氦表面附近漂浮颗粒的体系。

项目成果

Study of thermophoretic force on a dust particle in collisional cryogenic plasma

碰撞低温等离子体中尘埃颗粒的热泳力研究

• 发表时间: 2010
• 作者: M. Chikasue;N. Adhikary;N. Uotani;C. Sekino;M. Shindo and O. Ishihara
• 通讯作者: M. Shindo and O. Ishihara

Behavior of charged dust particles on the liquid helium surface

带电尘埃粒子在液氦表面的行为

• 发表时间: 2010
• 作者: N. Uotani;M. Chikasue;T. Wakiya;C. Sekino;M. Shindo and O. Ishihara
• 通讯作者: M. Shindo and O. Ishihara

Thermophoretic force on a dust particle in a diffused plasma in the vapor of liquid helium

液氦蒸气中扩散等离子体中尘埃粒子的热泳力

• DOI: 10.1063/1.3659831
• 发表时间: 2011
• 期刊: AIP Conf Proceedings
• 作者: M. Chikasue;M. Shindo and O. Ishihara
• 通讯作者: M. Shindo and O. Ishihara

Thermophoretic force on charged dust particles in cryogenic complex plasma

低温复合等离子体中带电尘埃粒子的热泳力

• 发表时间: 2011
• 作者: M. Chikasue;M. Shindo and O. Ishihara
• 通讯作者: M. Shindo and O. Ishihara

Dust Charging in Collisional Plasma in Cryogenic Environment

低温环境中碰撞等离子体中的粉尘充电

• 发表时间: 2010
• 期刊: Journal of Plasma and Fusion Research Series 9(In press)
• 作者: N.Uotani;J.Kubota;W.Sekine;M.Cikasue;M.Shindo;O.Ishihara
• 通讯作者: O.Ishihara