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Author Smirnova, M. S.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PLASMA PHYSICS AND FUSION ♦ TORSATRON STELLARATORS ♦ ADIABATIC INVARIANCE ♦ MAGNETIC FIELD CONFIGURATIONS ♦ HARMONICS ♦ PLASMA CONFINEMENT ♦ CHARGED PARTICLES
Abstract Charged particle orbits are investigated in a torsatron with the complicated magnetic-field harmonic spectrum where the distant, high-order harmonics (the harmonics of the toroidal-field ripple) are present. The investigation is carried out on the basis of the adiabatic invariants of particle motion. The validity of the analytical expressions for the adiabatic invariants derived in the previous works are examined for the case of the torsatron magnetic field perturbed by the toroidal-field ripple of the arbitrary value and periodicity. For a torsatron{endash}heliotron [K. Uo, J. Phys. Soc. Jpn. {bold 16}, 1380 (1961)] where the TF ripple of the magnetic field of periodicity equals twice the number of the helical field periods, exact analytical expressions for the adiabatic invariants of motion are derived for all possible kinds of particle orbits. {copyright} {ital 1996 American Institute of Physics.}
ISSN 1070664X
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-08-01
Publisher Place United States
Journal Physics of Plasmas
Volume Number 3
Issue Number 8


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