Plasma electron hole kinematics. II. Hole tracking Particle-In-Cell simulation
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Plasma Science and Fusion Center
Here, the kinematics of a 1-D electron hole is studied using a novel Particle-In-Cell simulation code. A hole tracking technique enables us to follow the trajectory of a fast-moving solitary hole and study quantitatively hole acceleration and coupling to ions. We observe a transient at the initial stage of hole formation when the hole accelerates to several times the cold-ion sound speed. Artificially imposing slow ion speed changes on a fully formed hole causes its velocity to change even when the ion stream speed in the hole frame greatly exceeds the ion thermal speed, so there are no reflected ions. The behavior that we observe in numerical simulations agrees very well with our analytic theory of hole momentum conservation and the effects of “jetting.”
- 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:
- 1467859
- Alternate ID(s):
- OSTI ID: 1280201
- 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
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Evolution of electron phase space holes in inhomogeneous plasmas
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A study of the stability properties of Sagdeev solutions in the ion-acoustic regime using kinetic simulations
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Ultra slow electron holes in collisionless plasmas: Stability at high ion temperature
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journal | February 2020 |
A study of the stability properties of Sagdeev solutions in the ion-acoustic regime using kinetic simulations | preprint | January 2018 |
Ultra slow electron holes in collisionless plasmas: stability at high ion temperature | text | January 2019 |
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