Axisymmetric and non-axisymmetric structural effects of disruption-induced electromechanical forces on the JET Tokamak

The large-scale mechanical response of the JET Vacuum Vessel and other structural components to disruption-induced loads has been analysed. The observed toroidal variations of the VDE-induced rocking motion can be explained by non-axisymmetric plasma forces. New evidence has been found in support of a plasma kink mode model which could account for the generation of the observed sideways forces.