Collective Behavior of Dusty Plasmas in Space

太空中尘埃等离子体的集体行为

• 批准号: 9420627
• 负责人: Marlene Rosenberg
• 金额: $ 15.7万
• 依托单位: University of California-San Diego
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-05-01 至 1998-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9420627&HistoricalAwards=false
• 关键词: Collective; Behavior; Dusty; Plasmas; Space

This project will conduct fundamental theoretical research on selected topics in the collective behavior of dusty plasmas with applications to phenomena in dusty space. The physical effects studied include (1) grain charging, (2) grain dynamics and transport, and (3) waves, instabilities, and anomalous transport. This research will investigate how realistic attributes of grains in space such as finite grain size affects grain charging processes such as secondary electron emission and photoemission. The research will specifically address the motion of dust grains or aerosols in noctilucent clouds and polar mesospheric clouds in the Earth's ionosphere. The proposed research will substantially advance knowledge in the collective behavior of dusty plasmas. ***

本项目将对尘埃等离子体集体行为的选定主题进行基础理论研究，并将其应用于尘埃空间中的现象。 研究的物理效应包括（1）颗粒充电，（2）颗粒动力学和输运，（3）波，不稳定性和异常输运。 本研究将探讨晶粒在空间中的实际属性，如有限的晶粒尺寸如何影响晶粒的充电过程，如二次电子发射和光电发射。 这项研究将专门针对地球电离层中的平流层云和极地中间层云中的尘埃颗粒或气溶胶的运动。 拟议中的研究将大大推进尘埃等离子体集体行为的知识。 ***