PPPL-5022


<p>
<b> Two-stream Instability With Time-dependent Drift Velocity     </b>
</p>

<p>
<b>Authors:</b> Hong Qin and Ronald C. Davidson
</p>

<p><b>Abstract:</b>  The classical two-stream instability driven by a constant relative drift velocity between
two plasma components is extended to the case with time-dependent drift
velocity. A solution method is developed to rigorously define and calculate the instability
growth rate for linear perturbations relative to the time-dependent unperturbed
two-stream motions. Stability diagrams for the oscillating two-stream instability are
presented over a large region of parameter space. It is shown that the growth rate
for the classical two-stream instability can be significantly reduced by adding an
oscillatory component to the relative drift velocity.
<br>    
<br>

__________________________________________________
<br><br>
<b> Published in:</b> Phys. Plasmas <strong>21</strong> , 064505 (2014) ;  <a href="http://dx.doi.org/10.1063/1.4885076" title="Go to DOI for this Article">http://dx.doi.org/10.1063/1.4885076</a></p>
<p><a href="http://www.osti.gov/scitech/biblio/1148568" target="_blank">OSTI I.D.: 1148568</a><br>
  <br>
  __________________________________________________
  <br><br>
  <a href="PPPL-5022.pdf"><b>Download PPPL-5022</b></a> (pdf 266 KB 10 pp)
  <br>
  __________________________________________________
  
</p>