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Plasma jet deflection in magnetic fields

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Abstract

We investigated the motion of plasma jets in a quadripole magnetic field produced by four current conductors whose axial lines were bent through 90° (the curvature radius was 30 cm). The maximum strength of the magnetic field in the “slit” between the current conductors was 6 kOe. The plasma jet, which was produced by means of a coaxial gun, was injected along the axis of the magnetic system. The magnetic system was adequate for defecting the plasma jet, which had an initial velocity of 8×106 cm/sec and a maximum concentration before deflection of 2×1015 cm−3. The jet velocity was equal to 7×106 cm/sec. In spite of the considerable loss of particles (due to the presence of slits in the magnetic system), the ion concentration in the jet beyond the turn attained 2×1014 cm−3, while the over-all number of particles was as large as ∼1017.

As a result of deflection, it was possible to eliminate completely the neutral gas accompanying the jet and to obtain virtually totally ionized plasma. The optimum value of the magnetic field's strength was ∼8 kOe.

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Authors
  1. V. F. Demichev
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  2. V. D. Matyukhin
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  3. A. V. Nikologorskii
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  4. V. M. Strunnikov
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Additional information

Translated from Atomnaya Énergiya, Vol. 19, No. 4, pp. 329–335, October, 1965

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Demichev, V.F., Matyukhin, V.D., Nikologorskii, A.V. et al. Plasma jet deflection in magnetic fields. At Energy 19, 1253–1259 (1965). https://doi.org/10.1007/BF01163829

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  • DOI: https://doi.org/10.1007/BF01163829

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