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(ICP/11) Fast Heating of a Dense Plasma by High-Power Electron Beam at the GOL-3-II Facility

(This paper was rapporteured in lecture EX4/2)

A. V. Arzhannikov, V. T. Astrelin, A. V. Burdakov, V. S. Koidan, K. I. Mekler, P. I. Melnikov, S. V. Polosatkin, V. V. Postupaev, A. F. Rovenskikh, S. L. Sinitsky

Budker Institute of Nuclear Physics, 630090, Novosibirsk, Russia

Abstract.  Recent results on dense plasma heating by 200 kJ-electron beam at GOL-3-II facility are presented. The efficiency of collective electron beam deceleration up to 40% is achieved in 10¹⁵cm^{- 3} plasma. The characteristic electron temperature of $\sim$ 2 keV at plasma density (1-2) ×10¹⁵cm^{- 3} is obtained. At the two-stage heating of a dense ( $\sim$ 10¹⁶cm^{- 3}) plasma the electron temperature of 300-500 eV and the ion temperature of 100-200 eV are reached. Prospects of experiments on ``wall'' and multimirror plasma confinement at GOL-3-II facility are discussed.

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