MM-wave emission by magnetized plasma during sub-relativistic electron beam relaxation

I. A. Ivanov, A. V. Arzhannikov, A. V. Burdakov, V. S. Burmasov, D. E. Gavrilenko, A. A. Kasatov, I. V. Kandaurov, V. V. Kurkuchekov, S. A. Kuznetsov, K. I. Mekler, S. V. Polosatkin, S. S. Popov, V. V. Postupaev, A. F. Rovenskikh, V. F. Sklyarov, N. V. Sorokina, Yu A. Trunev, L. N. Vyacheslavov

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Abstract

There are described electromagnetic spectra of radiation emitted by magnetized plasma during sub-relativistic electron beam in a double plasma frequency band. Experimental studies were performed at the multiple-mirror trap GOL-3. The electron beam had the following parameters: 70-110 keV for the electron energy, 1-10 MW for the beam power and 30-300 μs for its duration. The spectrum was measured in 75-230 GHz frequency band. The frequency of the emission follows variations in electron plasma density and magnetic field strength. The specific emission power on the length of the plasma column is estimated on the level 0.75 kW/cm.

Original languageEnglish
Article number122302
JournalPhysics of Plasmas
Volume22
Issue number12
DOIs
Publication statusPublished - 1 Dec 2015

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