title: Turbulence phase space in simple magnetized toroidal plasmas.
abstract: Plasma turbulence in a simple magnetized torus (SMT) is explored for the first time with three-dimensional global fluid simulations. Three turbulence regimes are described: an ideal interchange mode regime, a previously undiscovered resistive interchange mode regime, and a drift-wave regime. As the pitch of the field lines is decreased, the simulations exhibit a transition from the first regime to the second, while the third--the drift-wave regime--is likely accessible to the experiments only at very low collisionalities.
authors.affiliation: Centre de Recherches en Physique des Plasmas-Ecole Polytechnique Fédérale de Lausanne, Association EURATOM-Confédération Suisse, CH-1015 Lausanne, Switzerland. paolo.ricci@epfl.ch
authors.forename: Paolo
authors.initials: P
authors.lastname: Ricci
authors.forename: B N
authors.initials: BN
authors.lastname: Rogers