Temporal structure of double plasma frequency emission of thin beam-heated plasma.

Authors :: Postupaev, V. V.
Burdakov, A. V.
Ivanov, I. A.
Sklyarov, V. F.
Arzhannikov, A. V.
Gavrilenko, D. Ye.
Kandaurov, I. V.
Kasatov, A. A.
Kurkuchekov, V. V.
Mekler, K. I.
Polosatkin, S. V.
Popov, S. S.
Rovenskikh, A. F.
Sudnikov, A. V.
Sulyaev, Yu. S.
Trunev, Yu. A.
Vyacheslavov, L. N.
Source :: Physics of Plasmas; Sep2013, Vol. 20 Issue 9, p092304, 10p
Publication Year :: 2013
Abstract: In the work presented here dynamics of spiky microwave emission of a beam-heated plasma near the double plasma frequency in ∼100 GHz band was studied. The plasma is heated by 80 keV, ∼2 MW, sub-ms electron beam that is injected into the multiple-mirror trap GOL-3. The beam-heated plasma diameter is of the order of the emitted wavelength. Modulation of individual emission spikes in the microwave radiation is found. The radiation dynamics observed can be attributed to a small number of compact emitting zones that are periodically distorted. [ABSTRACT FROM AUTHOR]

Subjects :: PLASMA frequencies
PLASMA heating
DYNAMICAL systems
MICROWAVE plasmas
ELECTRON beams
ELECTRONIC modulation

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