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Title: Generation of forerunner electron beam during interaction of ion beam pulse with plasma

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.5002688· OSTI ID:1433304
ORCiD logo [1]; ORCiD logo [2];  [2]
  1. Texas A & M Univ., College Station, TX (United States). Dept. of Aerospace Engineering; Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
  2. Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)

The long-time evolution of the two-stream instability of a cold tenuous ion beam pulse propagating through the background plasma with density much higher than the ion beam density is investigated using a large-scale one-dimensional electrostatic kinetic simulation. The three stages of the instability are investigated in detail. After the initial linear growth and saturation by the electron trapping, a portion of the initially trapped electrons becomes detrapped and moves ahead of the ion beam pulse forming a forerunner electron beam, which causes a secondary two-stream instability that preheats the upstream plasma electrons. Consequently, the self-consistent nonlinear-driven turbulent state is set up at the head of the ion beam pulse with the saturated plasma wave sustained by the influx of the cold electrons from upstream of the beam that lasts until the final stage when the beam ions become trapped by the plasma wave. Finally, the beam ion trapping leads to the nonlinear heating of the beam ions that eventually extinguishes the instability.

Research Organization:
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Sponsoring Organization:
USDOE; Japan Society for the Promotion of Science (JSPS)
Grant/Contract Number:
AC02-09CH11466
OSTI ID:
1433304
Alternate ID(s):
OSTI ID: 1416462
Journal Information:
Physics of Plasmas, Vol. 25, Issue 1; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

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Cited By (4)

Amplification due to two-stream instability of self-electric and magnetic fields of an ion beam propagating in background plasma journal May 2018
Test cases for grid-based direct kinetic modeling of plasma flows journal June 2018
Ion kinetics and nonlinear saturation of current-driven instabilities relevant to hollow cathode plasmas journal May 2019
Amplification due to Two-Stream Instability of Self-Electric and Magnetic Fields of an Ion Beam Propagating in Background Plasma text January 2017

Figures / Tables (6)