Electron fishbones: theory and experimental evidence
By Fulvio Zonca, P. Buratti, A. Cardinali, L. Chen, J. Dong, Y. Long, A. Milovanov, F. Romanelli, P. Smeulders, L. Wang and 28 more. 2007
141 citations recorded by the source corpus.
We discuss the processes underlying the excitation of fishbone-like internal kink instabilities driven by supra-thermal electrons generated experimentally by different means: electron cyclotron resonance heating (ECRH) and by lower hybrid (LH) power injection. The peculiarity and interest of exciting these electron fishbones by ECRH only or by LH only is also analysed. Not only is the mode stability explained, but also the transition between steady state nonlinear oscillations to bursting (almost regular) pulsations, as observed in FTU, is interpreted in terms of the LH power input. These results are directly relevant to the investigation of trapped alpha particle interactions with low-frequency MHD modes in burning plasmas: in fact, alpha particles in reactor relevant conditions are characterized by small dimensionless orbits, similarly to electrons; the trapped particle bounce averaged dynamics, meanwhile, depends on energy and not mass.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/5cc20b838bd518ab28cec4448a2edb51edc31fe4
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Astronomy and Astrophysics
In Nuclear and High Energy Physics
Citations in the corpus
- Physics of Alfvén waves and energetic particles in burning plasmas (2016, background): “…2014b, 2014c), first introduced for the description of the fishbone mode (Chen, White, and Rosenbluth, 1984), and later on derived for different branches of SAW fluctuations, demonstrating its general validity (Zonca and Chen, 2006, 2007; Chen and Zonca, 2007a; Zonca et al., 2007a; Chen, 2008).”