CAREER: Physics of Non-Neutral and Electron-Positron Plasmas Confined in the CNT Stellarator

职业：碳纳米管仿星器中限制的非中性和正负电子等离子体的物理学

• 批准号: 0449813
• 负责人: Thomas Pedersen
• 金额: --
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-08-01 至 2011-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0449813&HistoricalAwards=false
• 关键词: CAREER; Physics; Non; Neutral; Electron

This CAREER project is focuses on creating and studying confined non-neutral and electron-positron plasmas in the Columbia Non-neutral Torus (CNT), and to use this research program to interact with and educate graduate students, undergraduate students, high school teachers and students, and the general public. CNT is a unique and simple toroidal magnetic confinement device that is specifically designed for the studies proposed here. It will, for the first time, allow a systematic study of plasmas with arbitrary degree of neutrality, from pure electron to quasi-neutral, a systematic study of toroidal magnetic confinement in the presence of extreme electric fields and strong flows, and the creation of the first ever laboratory electron-positron plasma. Electron-positron plasmas are unique in that the mass ratio between the two species is one and the charge ratio is one. Hence, these plasmas are highly symmetric and very different from regular ion-electron plasmas. As a result, electron-positron plasmas have unique properties, such as not supporting acoustic waves and electrostatic drift waves. At the same time, they can be analyzed numerically and analytically more easily than ion-electron plasmas, because both species evolve on the same spatial and temporal scales. Electron-positron plasmas may be considered the hydrogen atom of plasma physics, the simplest possible plasmas. CNT is a state of the art University experiment, with a large degree of involvement of graduate and undergraduate students. It is an ideal training ground for future experimental scientists. It also facilitates interaction and collaboration with high school science teachers and students, a collaboration that will be further expanded in the future.

该职业项目的重点是在哥伦比亚非中性环面 (CNT) 中创建和研究受限非中性和电子-正电子等离子体，并利用该研究项目与研究生、本科生、高中教师和学生进行互动和教育。学生和广大公众。 CNT 是一种独特且简单的环形磁约束装置，专为此处提出的研究而设计。它将首次允许对具有任意中性程度（从纯电子到准中性）的等离子体进行系统研究，对极端电场和强流存在下的环形磁约束进行系统研究，并创建第一个实验室正负电子等离子体。正负电子等离子体的独特之处在于，两种物质之间的质量比为一，电荷比为一。因此，这些等离子体高度对称，与常规离子电子等离子体有很大不同。因此，正负电子等离子体具有独特的性质，例如不支持声波和静电漂移波。同时，它们比离子电子等离子体更容易进行数值和分析分析，因为这两种物质都在相同的空间和时间尺度上演化。电子-正电子等离子体可以被认为是等离子体物理学中的氢原子，是最简单的等离子体。 CNT 是一项最先进的大学实验，研究生和本科生都大量参与。它是未来实验科学家的理想训练场。它还促进了与高中科学教师和学生的互动与合作，这种合作将在未来进一步扩大。