Relativistic magnetron with distributed output of microwave radiation

Vintizenko, I. I.; Заревич, Антон Иванович; Новиков, С. С.

doi:10.1134/1.1931776

Tech. Phys. Lett.

2005

DOI: 10.1134/1.1931776

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Relativistic magnetron with distributed output of microwave radiation

I. I. Vintizenko

Антон Иванович Заревич

С. С. Новиков

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“…Electron beam injection is common in many plasma situations. Examples are solar flares [1], cavity magnetrons that generate microwaves [2,3] or various radar applications. Beams of relativistic, hot electrons are also likely to be the source of solar type III radio bursts.…”

mentioning

confidence: 99%

Electron cyclotron maser emission mode coupling to the z-mode on a longitudinal density gradient in the context of solar type III bursts

Pechhacker¹,

Tsiklauri²

2012

Physics of Plasmas

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A beam of super-thermal, hot electrons was injected into maxwellian plasma with a density gradient along a magnetic field line. 1.5D particle-in-cell simulations were carried out which established that the EM emission is produced by the perpendicular component of the beam injection momentum. The beam has a positive slope in the distribution function in perpendicular momentum phase space, which is the characteristic feature of a cyclotron maser. The cyclotron maser in the overdense plasma generates emission at the electron cyclotron frequency. The frequencies of generated waves were too low to propagate away from the injection region, hence the wavelet transform shows a pulsating wave generation and decay process. The intensity pulsation frequency is twice the relativistic cyclotron frequency. Eventually, a stable wave packet formed and could mode couple on the density gradient to reach frequencies of the order of the plasma frequency, that allowed for propagation. The emitted wave is likely to be a z-mode wave. The total electromagnetic energy generated is of the order of 0.1% of the initial beam kinetic energy. The proposed mechanism is of relevance to solar type III radio bursts, as well as other situations, when the injected electron beam has a non-zero perpendicular momentum, e.g. magnetron.

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mentioning

confidence: 99%

Electron cyclotron maser emission mode coupling to the z-mode on a longitudinal density gradient in the context of solar type III bursts

Pechhacker¹,

Tsiklauri²

2012

Physics of Plasmas

View full text Add to dashboard Cite

show abstract

Relativistic magnetron microwave oscillators with external coupling of cavities

Vintizenko

Новиков

2010

Tech. Phys.

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Modifications of a relativistic magnetron

Vintizenko

2014

Tech. Phys.

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Relativistic magnetron with distributed output of microwave radiation

Cited by 5 publications

References 0 publications

Electron cyclotron maser emission mode coupling to the z-mode on a longitudinal density gradient in the context of solar type III bursts

Electron cyclotron maser emission mode coupling to the z-mode on a longitudinal density gradient in the context of solar type III bursts

Relativistic magnetron microwave oscillators with external coupling of cavities

Modifications of a relativistic magnetron

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