Effect of ion viscosity on shear stabilization of drift dissipative instability
Voitsenya V.S. , Voloshko A.Yu., Solodovchenko S.I., Shtan' A.F.
The influence of the ion mass on the stabilization of drift oscillations by shear was investigated in a toroidal / = 3 stellarator. A threshold shear value that depends on Mt and starting with which a strong suppression of the oscillations sets in has been observed. It is shown that the drift oscillation level in the entire range of shear variation is smaller the larger the ion mass.