Equilibrium, stability, and estimate of plasma confinement in the L-5 compact torsatron
- Russian Research Centre Kurchatov Institute (Russian Federation)
- EURATOM Association, Max-Planck-Institut fuer Plasmaphysik (Germany)
- Russian Academy of Sciences, Prokhorov Institute of General Physics (Russian Federation)
Possible parameters of a plasma in a compact torsatron that is to be constructed at the Prokhorov Institute of General Physics, Russian Academy of Sciences (the L-5 project) are discussed. The properties of the original vacuum configuration created by the external coils are described. The equilibrium of a plasma with a free boundary and the stability of local MHD modes are investigated. The effective magnetic field ripples and the structural factor of the bootstrap current in the 1/{nu} regime are calculated, as well as collisionless losses of trapped {alpha}-particles. The dependence of these properties on the relative plasma pressure is examined. It is shown that the maximum possible <{beta}> (the ratio of the gas-kinetic plasma pressure to the magnetic field pressure, averaged over the volume of the plasma column) consistent with equilibrium exceeds 2.0%. The power of the external sources for plasma heating in the anticipated operating modes is estimated using the present-day scalings. The efficiency of different methods for calculating the magnetic fields and, accordingly, the magnetic surfaces created by the external coils is analyzed in the Appendix.
- OSTI ID:
- 22047538
- Journal Information:
- Plasma Physics Reports, Vol. 37, Issue 4; Other Information: Copyright (c) 2011 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-780X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Equilibrium, stability, and deeply trapped energetic particle confinement calculations for I = 2 torsatron/heliotron configurations
Equilibrium drives of the low and high field side n = 2 plasma response and impact on global confinement