(This paper was rapporteured in lecture EX4/1)
V. K. Gusev , V. E. Golant ,
E. Z. Gusakov , V. V. Dyachenko , M. A. Irzak ,
V. B. Minaev , E. E. Mukhin , A. N. Novokhatskii ,
K. A. Podushnikova , G. T. Razdobarin , N. V. Sakharov ,
O. N. Shcherbinin , V. S. Uzlov
A.F. Ioffe Institute, St. Petersburg, Russia
V. A. Belyakov , A. A. Kavin ,
Yu.A. Kostzov , E. Kuzmin , V. F. Soikin
D.V. Efremov Institute, Metallstroy, St. Petersburg, Russia
E. A. Kuznetzov , V. A. Yagnov
TRINITI, Troitsk, Moscow region, Russia
N. Ya. Dvorkin , V. V. Mikov
State Enterprise Northern Plant, St. Petersburg, Russia
Abstract
Globus-M spherical tokamak was designed and constructed
in the framework of International Science
and Technology Center. The work was performed as a joint effort of
institutions listed in the title. Final technical characteristic of the
machine are better than the design parameters. The nominal plasma current is
increased up to 0.5 MA, the toroidal magnetic field is increased up to 0.65
T. Major radius is 0.36 m, minor radius is 0.24 m, aspect ratio is 1.5,
vertical elongation is 2.2, pulse duration is 0.2 s (at 6 pulses/hour rate
operation). Device performance is discussed with focus on details which could
improve experimental program and make the machine operation more
reliable. Experimental program steps, starting from ohmic heating regime
optimization and completing RF auxiliary heating and CD methods are
described. Some results of RF simulation performed in the range of frequencies
10 MHz-2.45 GHz are presented. Application of such methods for local plasma
parameters profiles modification is discussed. Brief description of first
stage diagnostics and of the advanced diagnostics equipment for the second
stage is made. Current project status is discussed.
IAEA 1999