Abstract
We report on the results of successful implementation of full grid control in a cesium discharge with a cathode spot. The discharge is quenched by a negative grid pulse for a discharge current density up to 75 A/cm2 in the grid plane for voltage switching up to 100 V in the pressure range 0.5–1.5 Pa for a voltage drop of 5–6 V in the discharge. It is shown that quenching is the break-off type. The discovered effect of “evacuation” of the heavy component (ions) from the grid-anode gap to the cathode region leads to an unusually long (hundreds of microseconds) time of stabilization of the steady state in the discharge under the experimental conditions.
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Original Russian Text © V.B. Kaplan, A.M. Martsinovskii, I.I. Stolyarov, 2011, published in Zhurnal Tekhnicheskoi Fiziki, 2011, Vol. 81, No. 11, pp. 40–47.
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Kaplan, V.B., Martsinovskii, A.M. & Stolyarov, I.I. Peculiarities of grid control over the current in a discharge with a cathode spot on the cesium liquid-metal cathode. Tech. Phys. 56, 1579–1587 (2011). https://doi.org/10.1134/S1063784211110120
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DOI: https://doi.org/10.1134/S1063784211110120