
%0 Journal Article
%A Lewandowski, J. L. V. 
%A Ellem, R. M. 
%T Effect of Radial Wavevector on Collisional Drift Waves in a Toroidal Heliac
%J Australian Journal of Physics
%D 1999/03/31
%V 52
%N 1
%P 71-85
%K 
%R https://doi.org/10.1071/P98071
%U https://www.publish.csiro.au/paper/P98071 
%X A 3-field model for collisional drift waves, in the ballooning representation, for a low-pressure stellarator plasma is presented. In particular, the effect of a finite radial mode number (&#8801; &#952;k) is studied, and the linear growth rates for the fluctuating plasma density, electrostatic potential and electron temperature are computed numerically by solving the 3-field model as an initial-value problem. Numerical results for a 3-field period stellarator with low global magnetic shear are then presented. It is found that, in a system with small global magnetic shear, the case &#952;k = 0 yields the fastest linear growth rate. 
