NSTX-U In-Vessel Control Coils’ Design Concept. - Atnafu, Neway D.; Brooks, A.; Cai, D.; Dellas, J.; Gerhardt, S.; Menard, J.; Ono, M.; Labik, G.; Titus, P.; Gonzalez-Teodoro, Jorge R. (IEEE Transactions on Plasma Science, 2018)