T. C. Hender

TL;DR: The progress in the ITER Physics Basis (PIPB) document as discussed by the authors is an update of the IPB, which was published in 1999 [1], and provides methodologies for projecting the performance of burning plasmas, developed largely through coordinated experimental, modelling and theoretical activities carried out on today's large tokamaks (ITER Physics R&D).

TL;DR: In this paper, the authors describe a two-stage MHD instability, where the first stage is caused by a loss of energy from the central region and the second stage is due to an increase in impurity radiation.

TL;DR: In this paper, the authors show that externally applied static resonant magnetic perturbations (RMPs) induce stationary magnetic islands, which give rise to a significant degradation in energy and particle confinement, suppression of the sawtooth oscillation and a large change in the impurity ion toroidal velocity.

TL;DR: In this paper, the penetration of a helical magnetic perturbation into a rotating tokamak plasma is investigated and it is shown that unless the frequency of the imposed perturbations matches closely to one of the natural mode frequencies, reconnection at the rational surface is suppressed by a large factor.

TL;DR: It is shown in the Joint European Torus that NTMs can be readily destabilized by long-period sawteeth, such as obtained by sawtooth stabilization from ion-cyclotron heating or current drive, which has important implications for burning plasma scenarios, as alpha particles strongly stabilize the saweeth.