Equilibria of Two Relaxed Plasma Species With One Species Confined by the Space Charge of the Other Species

两种松弛等离子体物质的平衡，其中一种物质受到另一种物质的空间电荷的限制

• 批准号: 1803047
• 负责人: Carlos Ordonez
• 金额: $ 18.6万
• 依托单位: University of North Texas
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-08-01 至 2024-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1803047&HistoricalAwards=false
• 关键词: Equilibria; Two; Relaxed; Plasma; Species

There are many areas of scientific research that may benefit from the development of improved plasma confinement and control methods. These include studies of antimatter, charged particle beams, and non-neutral plasmas. The goal of this project is to develop a theoretical understanding of the conditions for a plasma of one species of charged particles to be confined by an electric field produced by a plasma of a second species of charged particles. The project provides training opportunities for undergraduate and graduate students, including members of traditionally underrepresented groups in science and engineering. The work will be carried out by students as part of their research training and will be supervised by the principal investigator to assure professional quality, with research results presented in peer-reviewed journals and at technical conferences.The project will explore the equilibrium of a two-species plasma, with one plasma species confined by the space charge of the other; with the outer species confined by using the concept of an artificially structured boundary in a cylindrical geometry. Conditions for achieving an equilibrium in which a neutral region forms with each species having the same temperature is sought. This plasma confinement approach is intended to provide a highly quiescent plasma. The theoretical understanding will be developed using classical trajectory Monte Carlo, Poisson-Boltzmann finite difference, and particle-in-cell numerical methods.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

有许多科学研究领域可以从改进的等离子体约束和控制方法的发展中受益。 其中包括反物质、带电粒子束和非中性等离子体的研究。 该项目的目标是从理论上理解一种带电粒子的等离子体被第二种带电粒子的等离子体产生的电场限制的条件。 该项目为本科生和研究生提供培训机会，包括科学和工程领域传统上代表性不足的群体的成员。 这项工作将由学生进行，作为其研究培训的一部分，并将由主要研究人员监督，以确保专业质量，研究结果将在同行评审的期刊和技术会议上介绍，该项目将探讨两种等离子体的平衡，其中一种等离子体物种受到另一种等离子体物种的空间电荷的限制;而外部物质通过使用圆柱形几何形状中的人工结构化边界的概念来限制。寻求实现平衡的条件，在该平衡中，中性区域形成为具有相同温度的每种物质。该等离子体约束方法旨在提供高度静止的等离子体。 该奖项反映了NSF的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Simulation of the formation of antihydrogen via magnetobound positronium

通过磁束缚正电子素模拟反氢的形成

• DOI: 10.1063/5.0060707
• 发表时间: 2021
• 期刊: AIP Advances
• 影响因子: 1.6
• 作者: Aguirre, F. F.;Ordonez, C. A.
• 通讯作者: Ordonez, C. A.

Artificially structured boundary plasma trap

人工结构边界等离子体阱

• DOI: 10.1063/1.5116349
• 发表时间: 2019
• 期刊: Physics of Plasmas
• 影响因子: 2.2
• 作者: Hedlof, R. M.;Ordonez, C. A.
• 通讯作者: Ordonez, C. A.

Magnetic confinement of effectively unmagnetized plasma particles

有效未磁化等离子体粒子的磁约束

• DOI: 10.1063/5.0030215
• 发表时间: 2020
• 期刊: Physics of Plasmas
• 影响因子: 2.2
• 作者: Ordonez, C. A.

Electrostatic equilibria of non-neutral plasmas confined in a Penning trap with axially varying magnetic field

潘宁陷阱中具有轴向变化磁场的非中性等离子体的静电平衡

• DOI: 10.1063/1.5092136
• 发表时间: 2019
• 期刊: Physics of Plasmas
• 影响因子: 2.2
• 作者: Lane, R. A.;Ordonez, C. A.
• 通讯作者: Ordonez, C. A.

Ionized Molecular Hydrogen Build-Up and Confinement Inside the Space Charge of a Continually Resupplied Electron Cloud

电离分子氢在持续补给的电子云的空间电荷内的积累和限制

• DOI: 10.1109/tps.2021.3138335
• 发表时间: 2022
• 期刊: IEEE Transactions on Plasma Science
• 影响因子: 1.5
• 作者: Kiester, Allen S.;Ordonez, Carlos A.;Weathers, Duncan L.
• 通讯作者: Weathers, Duncan L.