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Possible Further Steps for Upgrading the GDT Device

T. D. Akhmetov, A. A. Ivanov, V. V. Prikhodko

Fusion Science and Technology / Volume 59 / Number 1T / January 2011 / Pages 43-46

Recent upgrade of the neutral beam system has resulted in considerable improvement of the plasma parameters in the gas dynamic trap experiment. With injection of 5 ms, 20 keV, 4.5 MW neutral beams the electron temperature approaching 250 eV was obtained. At the same time maximal plasma beta attained about 60%. Further progress in plasma temperature and pressure could only be possible with considerable increase of the magnetic field in the central solenoid and re-optimization of its profile to improve stability of high-beta plasma, as well as with extension of the neutral beam pulse. Possible steps in this direction are considered in this paper.

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