Plasma electron hole kinematics. I. Momentum conservation
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Plasma Science and Fusion Center
Here, we analyse the kinematic properties of a plasma electron hole: a non-linear self-sustained localized positive electric potential perturbation, trapping electrons, which behaves as a coherent entity. When a hole accelerates or grows in depth, ion and electron plasma momentum is changed both within the hole and outside, by an energization process we call jetting. We present a comprehensive analytic calculation of the momentum changes of an isolated general one-dimensional hole. The conservation of the total momentum gives the hole's kinematics, determining its velocity evolution. Our results explain many features of the behavior of hole speed observed in numerical simulations, including self-acceleration at formation, and hole pushing and trapping by ion streams.
- Research Organization:
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Fusion Energy Sciences (FES); National Science Foundation (NSF)
- Grant/Contract Number:
- SC0010491
- OSTI ID:
- 1467857
- Alternate ID(s):
- OSTI ID: 1306684
- Journal Information:
- Physics of Plasmas, Vol. 23, Issue 8; ISSN 1070-664X
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Electron phase-space hole transverse instability at high magnetic field
|
journal | September 2019 |
Electron holes in phase space: What they are and why they matter
|
journal | May 2017 |
A study of the stability properties of Sagdeev solutions in the ion-acoustic regime using kinetic simulations
|
journal | July 2018 |
A study of the stability properties of Sagdeev solutions in the ion-acoustic regime using kinetic simulations | preprint | January 2018 |
Similar Records
Plasma electron hole kinematics. I. Momentum conservation
Plasma electron hole kinematics. II. Hole tracking Particle-In-Cell simulation