A divertor magnetic configuration is an alternative method of obtaining interchange mode stability in the central cell of the GAMMA10 tandem mirror (Cho et al 2005 Phys. Rev. Lett. 94 085002). Various divertor configurations are investigated in the central cell of GAMMA10 to determine the best configuration. The equilibrium in the divertor configuration is calculated using the generalized Grad–Shafranov equation with anisotropic plasma pressure to estimate how high a plasma pressure is sustained by the magnetic divertor.
Magnetohydrodynamic stabilization of an axisymmetric mirror plasma with a magnetic divertor is studied. An equation is found for the flute modes, which includes the stabilizing influence of ion temperature anisotropy and nonparaxial magnetic fields, as well as a finite ion Larmor radius. It is shown that if the density profile is sufficiently gentle, then the nonparaxial configuration can stabilize all modes as long as ion temperature is radially uniform. This can be demonstrated even when the density vanishes on the separatrix and even for small ion Larmor radii. It is found, however, that the ion temperature gradient makes the unstable region wider; high ion temperature is required to stabilize the flute mode.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.