Equilibrium and stability properties of intense non-neutral electron flow

摘要: Non-neutral plasmas, like electrically neutral exhibit a broad range of collective properties, such as plasma waves and instabilities, the ability to support long-lived, large-amplitude coherent structures. This paper reviews equilibrium stability properties intense non-neutral electron flow in crossed electric magnetic fields. Following description for magnetically insulated planar geometry, extraordinary-mode are investigated relativistic between conductors. Particular emphasis is placed on magnetron diocotron detailed behavior shown sensitive dependence self field intensity (as measured by dimensionless parameter ${s}_{e}=\frac{{\ensuremath{\gamma}}_{e}^{0}{\ensuremath{\omega}}_{\mathrm{pe}}^{2}}{{\ensuremath{\omega}}_{\mathrm{ce}}^{2}}$) well shape profiles. The influence cylindrical effects (such centrifugal Coriolis accelerations an fluid element) then rotating geometry. Finally, structures plasmas with circulating investigated. Topics covered this area include particle-in-cell computer simulations dense (${s}_{e}\ensuremath{\sim}1$) magnetrons which show spoke formation density, application cold-fluid guiding-center model investigate vortex low-density (${s}_{e}\ensuremath{\ll}1$) plasma. accessibility stationary (in frame) remain important topics future investigation.