Relativistic electron-beam generation in plasma-filled diode and foil-less injection into dense plasma

V. S. Burmasov; I. V. Kandaurov; E. P. Kruglyakov; O. I. Meshkov

doi:10.1117/12.174542

1 May 1994 Relativistic electron-beam generation in plasma-filled diode and foilless injection into dense plasma

V. S. Burmasov, I. V. Kandaurov, E. P. Kruglyakov, O. I. Meshkov

Proceedings Volume 2259, XVI International Symposium on Discharges and Electrical Insulation in Vacuum; (1994) https://doi.org/10.1117/12.174542
Event: XVI International Symposium on Discharges and Electrical Insulation in Vacuum, 1994, Moscow-St. Petersburg, Russian Federation

Abstract

The traditional way of relativistic electron beam (REB) injection in the experiments on REB- plasma interaction is the injection through an anode foil that separates vacuum diode from plasma chamber. The presence of separating foil leads to the following: (1) replacement of destroyed foil is required after each shot, and (2) the beam angular characteristics making worse. A beam with low angular spread can be obtained from foilless diode placed into strong guiding magnetic field; the problem is how to avoid the diode shortening in the presence of a dense plasma from the interaction chamber. In the experiments on studying of Langmuir turbulence, carrying out on GOL-M device it becomes possible to avoid a separating foil and to obtain a foilless injection of REB into a dense (16 cm^-3) plasma, utilizing a special drift pipe as an anode of the foilless axially symmetric magnetized diode.

Citation Download Citation

V. S. Burmasov, I. V. Kandaurov, E. P. Kruglyakov, and O. I. Meshkov "Relativistic electron-beam generation in plasma-filled diode and foilless injection into dense plasma", Proc. SPIE 2259, XVI International Symposium on Discharges and Electrical Insulation in Vacuum, (1 May 1994); https://doi.org/10.1117/12.174542

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