Continuous wavelet transform based time-scale and multifractal analysis of the nonlinear oscillations in a hollow cathode glow discharge plasma
Continuous wavelet transform (CWT) based time-scale and multifractal analyses have been carried out on the anode glow related nonlinear floating potential fluctuations in a hollow cathode glow dischar...
Continuous wavelet transform (CWT) based time-scale and multifractal analyses have been carried out on the anode glow related nonlinear floating potential fluctuations in a hollow cathode glow dischar...
Evolution of Alfvénic wave envelopes in spin-1/2 quantum Hall-magnetohydrodynamic plasmas
The one-dimensional oblique propagation of large amplitude magnetohydrodynamic (MHD) waves in a high- quantum Hall-MHD plasma is studied with electron spin-1/2 effects. The plasma becomes high by the...
The one-dimensional oblique propagation of large amplitude magnetohydrodynamic (MHD) waves in a high- quantum Hall-MHD plasma is studied with electron spin-1/2 effects. The plasma becomes high by the...
Runaway electron transport via tokamak microturbulence
Phys. Plasmas 16, 102308 (2009); doi:10.1063/1.3243494
Published 27 October 2009
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The mechanisms found for the magnetic transport of fast ions in the work of Hauff et al. [Phys. Rev. Lett. 102, 075004 (2009)] are extended to the diffusion of runaway electrons. Due to their smaller mass and larger energy, they behave strongly relativistically, for which reason the scaling laws defined previously have to be modified. It is found that due to these changes, the regime of constant magnetic transport does not exist anymore, but diffusivity scales with E−1 for magnetic transport, or even with E−2 in the case that finite gyroradius effects become important. It is shown that the modified analytical approaches are able to explain the surprisingly small values found in experiments, although it cannot be excluded that possibly other reduction mechanisms are present at the same time.
©2009 American Institute of Physics
| History: | Received 6 July 2009; accepted 14 September 2009; published 27 October 2009 |
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