Ion resonance cones in a magnetized plasma

Riccardi, C.; Salierno, M.; Cantù, P.; Fontanesi, M.

doi:10.1088/0741-3335/38/5/003

Plasma Phys. Control. Fusion

1996

DOI: 10.1088/0741-3335/38/5/003

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Ion resonance cones in a magnetized plasma

C. Riccardi¹,

M. Salierno²,

P. Cantù³

et al.

Abstract: An experimental and theoretical study on ion resonance cones has been carried out taking into account both thermal and source effects. The measurements have been performed in a small toroidal device, with different antenna systems to excite the waves.

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Cited by 2 publications

References 11 publications

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The different evolution of plasma density voids and blobs in the edge region of a simply magnetized toroidal plasma

Barni¹,

Caldirola²,

Fattorini

et al. 2017

Physics of Plasmas

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The analysis of the anomalous transport in magnetised plasmas has pointed out the substantial contribution of intermittent burst events corresponding to positive density fluctuations propagating outwards to the edges of the devices. Much less attention was paid to negative density fluctuation structures, which could be named depletions or voids, whose propagation could contribute to the global anomalous transport, in particular, when a non-negligible diffuse plasma background is present in magnetized plasma device edges. Here, we discuss the results of an experimental investigation aimed to study the spatio-temporal evolution of density depletion structures propagating inwards in a magnetized plasma column simply magnetized toroidal device. Evidence of this behavior was gathered by a conditional sampling analysis applied to time series of plasma fluctuations. We observe that a significant fraction of void structures, after being ejected outside the main plasma column, gets pulled inwards and disappears by merging at the column edge. On the other hand, a smaller fraction as well as most of the positive density structures, after ejection, ends up advected towards the edges of the device and gets lost from the main plasma column. These behaviors testify the richness and complexity of density structure evolution in magnetized plasma turbulence.

show abstract

The different evolution of plasma density voids and blobs in the edge region of a simply magnetized toroidal plasma

Barni¹,

Caldirola²,

Fattorini

et al. 2017

Physics of Plasmas

View full text Add to dashboard Cite

show abstract

Electron resonance cones in inhomogeneous plasmas

Riccardi

Salierno²,

Fontanesi³

et al. 1999

IEEE Trans. Plasma Sci.

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Ion resonance cones in a magnetized plasma

Abstract: An experimental and theoretical study on ion resonance cones has been carried out taking into account both thermal and source effects. The measurements have been performed in a small toroidal device, with different antenna systems to excite the waves.

Cited by 2 publications

References 11 publications

The different evolution of plasma density voids and blobs in the edge region of a simply magnetized toroidal plasma

The different evolution of plasma density voids and blobs in the edge region of a simply magnetized toroidal plasma

Electron resonance cones in inhomogeneous plasmas

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