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Experimental Study of Interaction of Fine Particle Plasmas with Electromagnetic Fields and Elementary Processes

细颗粒等离子体与电磁场和基本过程相互作用的实验研究

基本信息

批准号：
10680461
负责人：
YOKOTA Toshiaki
金额：
$ 2.11万
依托单位：
Ehime University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 2000
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10680461/
关键词：
Fine Particle Plasma Unipolar Induction Planetary Ring Electromagnetic Field Interaction Particle Sige Charge of Particle Elementary Process 粒子径密度分布ボート法リングシミュレーション

项目摘要

We are experimenting on the planetary ring formation by using two component fine particle plasmas generated by a boat method. Two component Plasmas which are composed of positively charged particles and negatively charged particles were generated by UV irradiation of fine aluminum particles.A small insulator sphere in which a small permanent magnet was inserted was put into the fine particle plasmas, and was connected using insulator rods and rotated by a small motor. We were able to create a ring form of fine particle plasmas just like the Saturn ring by unipolar induction. The experimental conditions coincided with the simulated values. These results were reported on the 2nd International Conference on the Physics of Dusty Plasmas (Japan), Topical Conference on Plasma Physics (Portugal, Faro), and 8th Workshop on the Physics of Dusty Plasmas (USA, Santa Fe ).We are producing the experiment to observe the fundamental plasma parameter (density, particle size, charge) in situ, in order to explain the phenomena of fine particle. Also, We are experimenting on the elementary process which fine particle captures charges. We are able to obtain the particle size by a observation of scattered light intensity, and obtain particle charge by using the Paul Trap.

我们正在利用船法产生的双组分细粒子等离子体对行星环的形成进行实验。用紫外光照射细铝粒子，产生由正电荷粒子和负电荷粒子组成的双组分等离子体。将一个嵌有小型永磁体的小型绝缘体球体放入细粒子等离子体中，用绝缘体棒连接，由小型电机旋转。我们能够通过单极感应创造出一种环状的细粒子等离子体就像土星环一样。实验条件与模拟值吻合。这些结果在第二届国际尘埃等离子体物理会议（日本）、等离子体物理专题会议（葡萄牙，法鲁）和第八届尘埃等离子体物理研讨会（美国，圣达菲）上报道。为了解释细粒子现象，我们正在进行原位观察等离子体基本参数（密度、粒度、电荷）的实验。同时，我们正在对微粒捕获电荷的基本过程进行实验。我们可以通过观察散射光强来获得粒子的大小，并利用保罗阱来获得粒子的电荷。