3 papers
physics.plasm-ph2018
Oscillatory relaxation of zonal flows in a multi-species stellarator plasma
E. Sánchez, I. Calvo, J. L. Velasco +5
The low frequency oscillatory relaxation of zonal potential perturbations is studied numerically in the TJ-II stellarator (where it was experimentally detected for the first time).…
physics.plasm-ph2017
Semianalytical calculation of the zonal-flow oscillation frequency in stellarators
Pedro Monreal, Edilberto Sánchez, Iván Calvo +5
Due to their capability to reduce turbulent transport in magnetized plasmas, understanding the dynamics of zonal flows is an important problem in the fusion programme. Since the pi…
physics.plasm-ph2016
Observation of oscillatory radial electric field relaxation in a helical plasma
J. A. Alonso, E. Sanchez, I. Calvo +13
Measurements of the relaxation of a zonal electrostatic potential perturbation in a non-axisymmetric magnetically confined plasma are presented. A sudden perturbation of the plasma…