Studies of the neoclassical transport for CNT

The original optimization of the Columbia Nonneutral Torus (CNT) considering only volume (and error field resilience) was also successful in optimizing the stored energy. To assess the general confinement properties of a device, studies of the 1/ν neoclassical transport (effective ripple eff) are important. For CNT the field line tracing code NEO [1] is used to compute eff. NEO is used by the code SORSSA [2, 3] for computation of the total stored energy based on neoclassical transport.