Hostname: page-component-586b7cd67f-dsjbd Total loading time: 0 Render date: 2024-11-24T11:43:11.638Z Has data issue: false hasContentIssue false
  • English
  • Français

δf simulation studies of the ion–electron two-stream instability in heavy ion fusion beams

Published online by Cambridge University Press:  22 July 2003

HONG QIN ,
RONALD C. DAVIDSON ,
EDWARD A. STARTSEV  and
W. WEI-LI LEE
HONG QIN
Affiliation:
Plasma Physics Laboratory, Princeton University, Princeton, New Jersey
RONALD C. DAVIDSON
Affiliation:
Plasma Physics Laboratory, Princeton University, Princeton, New Jersey
EDWARD A. STARTSEV
Affiliation:
Plasma Physics Laboratory, Princeton University, Princeton, New Jersey
W. WEI-LI LEE
Affiliation:
Plasma Physics Laboratory, Princeton University, Princeton, New Jersey
Get access Rights & Permissions [Opens in a new window]

Abstract

Ion–electron two-stream instabilities in high intensity heavy ion fusion beams, described self-consistently by the nonlinear Vlasov–Maxwell equations, are studied using a three-dimensional multispecies perturbative particle simulation method. Large-scale parallel particle simulations are carried out using the recently developed Beam Equilibrium, Stability, and Transport (BEST) code. For a parameter regime characteristic of heavy ion fusion drivers, simulation results show that the most unstable mode of the ion–electron two-stream instability has a dipole-mode structure, and the linear growth rate decreases with increasing axial momentum spread of the beam particles due to Landau damping by the axial momentum spread of the beam ions in the longitudinal direction.

Keywords

Two-stream instabilityElectron cloudHeavy ion fusionSpace charge effect
Type
Research Article
Information
Laser and Particle Beams , Volume 21 , Issue 1 , January 2003 , pp. 21 - 26
Copyright
2003 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)