Experimental Studies of Basic Physics of Plasma Transport

等离子体传输基础物理实验研究

• 批准号: 0902930
• 负责人: Amiya Sen
• 金额: $ 13.59万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-15 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0902930&HistoricalAwards=false
• 关键词: Experimental; Studies; Basic; Physics; Plasma

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).Anomalous local turbulent transport in plasmas will be measured directly with novel diagnostics. By measuring critical parameters, the fundamental scaling laws of transport will be compared with various theories. A key element of the project is the diagnostic uses of feedback. A first ever ion temperature fluctuation diagnostic uses an ion energy analyzer which is modulated by a feedback signal derived from the fluctuations. The cross-correlation of this measurement with the potential fluctuations yields the ion thermal transport. The chief intellectual merit of the project lies in the challenge posed in the central issue in plasma anomalous transport physics: Bohm and gyro-Bohm scaling. This will be done via novel basic physics experiments and correlated models.Many of the general concepts and methodologies, especially the experimental determination of a nonlinear turbulent system modeling via feedback, are quite extrapolatable to many problems in fluid mechanics, aerodynamics, chemical reaction systems etc. with great potential benefit. The integration of research and education will be accomplished by exposure of the students to the clearly interdisciplinary research represented by the project, containing physics, applied physics, system and control engineering both in the laboratory and in the classes. Enhancement of the infrastructure of research and education will be accomplished via collaborations with several national and international universities and laboratories.

该奖项是根据2009年的《美国回收与再投资法》（公法111-5）资助的。等离子体中的当地动荡运输将直接用新颖的诊断来衡量。 通过测量关键参数，将将运输的基本规模定律与各种理论进行比较。该项目的关键要素是反馈的诊断用途。 有史以来的第一个离子温度波动诊断使用了离子能量分析仪，该离子能量分析仪由从波动中得出的反馈信号调节。该测量与潜在波动的互相关产生了离子热传输。该项目的主要知识分子在于等离子体异常运输物理学的中心问题所带来的挑战：Bohm和Gyro-Bohm缩放。这将通过新颖的基本物理学实验和相关模型来完成。一般概念和方法，尤其是通过反馈对非线性湍流系统建模的实验确定，与流体力学，空气动力学，化学反应系统的许多问题相当反应，具有巨大的潜在益处。研究和教育的整合将通过学生接触该项目代表的明确跨学科研究，其中包含实验室和课程中的物理，应用物理，系统和控制工程。研究和教育基础设施的增强将通过与几所国家和国际大学和实验室的合作来实现。