Physics of Non-Neutral and Electron-Positron Plasmas Confined on Magnetic Surfaces

磁性表面约束的非中性和正负电子等离子体的物理

• 批准号: 0903754
• 负责人: Thomas Pedersen
• 金额: $ 3.01万
• 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: 2009-10-01 至 2010-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0903754&HistoricalAwards=false
• 关键词: Physics; Non; Neutral; Electron; Positron

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). The primary focus of this theory program is on pure electron plasmas, in particular the properties of low density electron plasma equilibria. The theories developed are now being tested in several devices, not only on the Columbia Nonneutral Torus (CNT) but also on two devices in Japan. Some of the key predictions from theory have been experimentally verified, but many phenomena in CNT are still inadequately understood. The existing computational tools will be refined and applied in preparation for the next phase of the experiment, the creation of electron-positron plasmas.The development of an understanding of non-neutral plasmas confined on magnetic surfaces will be a valuable addition to basic plasma physics. It is also important for the future electron-positron (pair) plasma experiments. Electron-positron plasmas are theoretically the simplest quasi-neutral plasmas that one can study, and hence, a pair plasma experiment would provide a stringent test of our understanding of basic plasma physics. The proposed program supports one doctoral student, and it involves substantial participation by undergraduate students as well as high school students, and will continue to do so in the future.

该奖项根据 2009 年《美国复苏和再投资法案》（公法 111-5）提供资金。该理论程序的主要焦点是纯电子等离子体，特别是低密度电子等离子体平衡的特性。所开发的理论现在正在多种设备上进行测试，不仅在哥伦比亚非中性环面（CNT）上，而且还在日本的两台设备上进行测试。 一些关键的理论预测已经得到实验验证，但碳纳米管中的许多现象仍然没有得到充分的理解。现有的计算工具将得到完善和应用，为下一阶段的实验（即电子-正电子等离子体的创建）做准备。对限制在磁性表面上的非中性等离子体的理解的发展将是对基础等离子体物理学的有价值的补充。这对于未来的电子-正电子（对）等离子体实验也很重要。理论上，电子-正电子等离子体是人们可以研究的最简单的准中性等离子体，因此，一对等离子体实验将为我们对基本等离子体物理的理解提供严格的测试。拟议的计划支持一名博士生，并涉及本科生和高中生的大量参与，并将在未来继续这样做。