Collisional drift waves of a weakly magnetised plasma modified by temperature variation

Abstract

The two-fluid equations are used to derive a model of collisional drift waves for cylindrical magnetized plasmas. Both the radial electron temperature variation and the sheared B E r r× rotation in the plasmas have been taken into account. It is found that the presence of the B E r r× rotation leads to an important modification of the theory of drift waves derived by Aebischer HA and Sayasov Yu. S.(1988). The theory is applied to an experimental data of helium plasma using Runge-Kutta integration method. Our calculation shows that the temperature variation and the B E r r× rotation are important in the predictions of drift wave frequency and radial position of the maximum wave amplitude. PACS: 52.25. Xz, 52.35-g, 52.35. Fp, 52.35 Kt, 52.35 Ra