Dimensionally similar discharges in the W7-AS stellarator

Abstract
Dimensionally similar discharges and energy confinement of the W7-AS stellarator were investigated. The results presented, as well as other confinement properties of the net-current-free stellarator, are different from what is known from tokamaks. As expected from global scaling laws for stellerator confinement, the local transport coefficients of dimensionally similar discharges show a gyro-Bohm-like parameter dependence.