Experimental Studies of Particle Cloud - Plasma Boundaries and Velocity Space Distribution Functions in Low Discharge Dusty Plasmas

低放电尘埃等离子体中粒子云-等离子体边界和速度空间分布函数的实验研究

• 批准号: 0354938
• 负责人: Edward Thomas
• 金额: $ 41.5万
• 依托单位: Auburn University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-07-01 至 2008-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0354938&HistoricalAwards=false
• 关键词: Experimental; Studies; Particle; Cloud; Plasma

The research is directed toward two experimental issues in dusty plasmas. The first involves the boundary between dust clouds and the background plasma and the second the kinetics of dusty plasmas (the dust velocity distribution). The boundary study is important to learning how to manipulate dust clouds, in addition to the basic plasma physics component. The key diagnostic in the study is particle image velocimetry (PIV), which has been pioneered by the PI for study of dust grains motion in plasmas (through the cross-correlation of images taken at different times.

该研究针对尘土飞扬的两个实验问题。 第一个涉及尘埃云与背景等离子体之间的边界，第二个尘土等离子体的动力学（灰尘速度分布）。边界研究对于学习如何操纵尘埃云而重要的是基本的等离子体物理成分也很重要。 该研究中的关键诊断是粒子图像速度法（PIV），该测试是由PI开创的，用于研究等离子体中的灰尘晶粒运动（通过在不同时间拍摄的图像的互相关。