Equilibrium, stability, and estimate of plasma confinement in the L-5 compact torsatron View Full Text


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Article Info

DATE

2011-04

AUTHORS

M. I. Mikhailov, V. D. Shafranov, M. Drevlyak, J. Nührenberg, S. E. Grebenshchikov, A. B. Kuznetsov, S. V. Shchepetov

ABSTRACT

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/ν regime are calculated, as well as collisionless losses of trapped α-particles. The dependence of these properties on the relative plasma pressure is examined. It is shown that the maximum possible <β> (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. More... »

PAGES

338-346

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1134/s1063780x1104009x

DOI

http://dx.doi.org/10.1134/s1063780x1104009x

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1014982345


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