Fusion Science and Technology / Volume 48 / Number 2 / October 2005 / Pages 978-987
Technical Paper / DIII-D Tokamak - Achieving Reactor Quality Plasma Confinement
A comprehensive series of dimensionless parameter scaling experiments has been undertaken in the DIII-D tokamak with the goals of guiding turbulent transport theories and predicting confinement in future devices. These studies have measured the dependences of transport on the relative gyroradius, beta, collisionality, safety factor, cross-section shape, and ratio of ion to electron temperature. The results from these experiments, which are mainly in favor of drift wave turbulent transport, point to a favorable path for increasing the fusion performance in burning plasma devices.