A. Fujisawa et al., ELECTRIC-FIELD BIFURCATION AND TRANSITION IN THE CORE PLASMA OF CHS, Plasma physics and controlled fusion, 40(5), 1998, pp. 627-630
In the CHS heliotron/torsatron, dynamic phenomena associated with tran
sitions in radial electric field were observed during combined ECH+NBI
heated plasmas. The observations with high temporal resolution confir
med a nonlinear relationship between radial electric held and radial c
urrent as the cause of these phenomena associated with electric field
bifurcation.