Collective Behavior of Dusty Plasmas in Space

这个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。所研究的物理效应包括(1)谷物荷电，(2)谷物动力学和输运，(3)波动、不稳定性和反常输运。这项研究将研究空间中颗粒的现实属性，如有限的颗粒尺寸，如何影响颗粒的二次电子发射和光电子发射等充电过程。这项研究将专门研究地球电离层中的夜光云和极地中间层云中尘埃颗粒或气溶胶的运动。这项拟议的研究将极大地促进对尘埃等离子体集体行为的了解。***

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. ***