Abstract
A free-boundary MHD equilibrium code is used to determine the plasma shape and toroidal current distribution in highly elongated Garching Belt Pinch II equilibria (b/a = 10–14). The parameters of the calculations are optimized to fit the experimental boundary conditions as well as the measured axial profiles of Bz and the values of ⟨β⟩ and ⟨βp⟩. It is found that the plasma surfaces come close to a racetrack shape, and that the current density can be roughly described by jt = copr + coF/r for diamagnetic plasmas and jt = copr for ⟨βp⟩ = 1. This corresponds to extremely elongated inner flux surfaces, moderate gradients of the q profile and plasma pressure and toroidal field distributions which are almost axially homogeneous. The production and the time development of such jt profiles are discussed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
