Ion potential distribution of high-current arcs in vacuum

C. Rusteberg; M. Lindmayer; B. Juettner; H. Pursch

doi:10.1117/12.174634

1 May 1994 Ion potential distribution of high-current arcs in vacuum

C. Rusteberg, M. Lindmayer, B. Juettner, H. Pursch

Proceedings Volume 2259, XVI International Symposium on Discharges and Electrical Insulation in Vacuum; (1994) https://doi.org/10.1117/12.174634
Event: XVI International Symposium on Discharges and Electrical Insulation in Vacuum, 1994, Moscow-St. Petersburg, Russian Federation

Abstract

With the experiments presented in this paper applications of a retarding field analyzer for the measurement of ion potentials U_i in a vacuum arc plasma are discussed. The examined plasma was produced by a sinusoidal half-wave vacuum arc current. The experiments were concentrated on evaluating the plasma parameters at the last three milliseconds before current zero. In a current range from 300 A_rms to 10 kA_rms the ion potential distributions and their peak values were evaluated. With the increase of the arc current a decrease of the ion potential was found. By additional investigations of the angular distribution of the ion energies, a transition from a collision dominated interelectrode plasma to a freely expanding plasma was observed, depending on the arc current.

Citation Download Citation

C. Rusteberg, M. Lindmayer, B. Juettner, and H. Pursch "Ion potential distribution of high-current arcs in vacuum", Proc. SPIE 2259, XVI International Symposium on Discharges and Electrical Insulation in Vacuum, (1 May 1994); https://doi.org/10.1117/12.174634

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