Runaway electrons in ITER and other fusion plasma devices

Runaway electrons in ITER and other fusion plasma devices

The control of runaway electrons is a critical issue in the design of tokamak fusion devices. These particles, which travel at velocities close to the speed of light, are often generated during disruption events and can cause severe damage to diagnostic and other in-vessel components. Within the framework of this project, we investigate the behavior of runaway electrons by exploiting the analogy between tokamak magnetic field lines and the regular islands and chaotic regions that arise in chaotic dynamical systems. We develop a transport equation that will ultimately enable the modeling and safe design of fusion devices.

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