On the collisionless trapped electron mode in fluid and kinetic descriptions

摘要

The effects of gyro-Landau drift resonances on the collisionless trapped electron mode have been studied. The drift resonances are added to a two pole fluid model of the density response. The gyro-Landau drift resonances in general give good agreement with kinetic theory. Comparison is also made with the fluid model without drift resonances. The toroidal eta i mode is also included in the system.