The effects of the radial electric field on the ripple transport in the stellarator/heliotron are studied. The pitch angle dependence of the detrapping frequency is kept and the transport coefficient is calculated for the arbitrary values of ΩE/νeff(ΩE: Er×B rotation frequency νeff: effective collision frequency of ripple-trapped particles). A simple interpolation formula is derived and the electron energy confinement time is estimated.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)