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Abstract. First results of experiments on plasma confinement in
multimirror open trap GOL-3-II are presented. This facility is an open trap
with total length of 17 m intended for confinement of a relatively dense
(
1015 - 1017cm- 3) plasma in axially-symmetrical magnetic
system. The plasma heating is provided by a high-power electron beam (1 MeV,
30 kA, 8 ms, 200 kJ). New phase of the experiments is aimed to confinement
of high- thermalized plasma. Two essential modifications of the
facility have been done. First, plasma column was separated by vacuum
sections from the beam accelerator and exit beam receiver. Second, the
magnetic field on part of the solenoid was reconfigured into multimirror
system with
Hmax/Hmin
1.5 and 22 cm cell length. Results of
the experiments at modified configuration of the device indicate that the
confinement time of the plasma with
ne
(0, 5รท5) . 1015cm- 3 and
Te
1 keV increases more than order of
magnitude.
IAEA 2001