Figure 1 (IMAGE) American Physical Society Caption A composite image illustrating the operation of the runaway mitigation coil. The coil is shown as a heavy red line superimposed on the tokamak vacuum vessel (shown by the pale-blue shading). The insert on the right shows the perturbed currents driven by currents induced in the coil by a disruption. The insert on the left shows the stochastic field structure thereby created. In this field, electrons are unconfined and rapidly lost. Credit Darren Garnier, Massachusetts Institute of Technology Usage Restrictions Use with credit License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.