Experimental evidence of the non-diffusive avalanche-like electron heat transport events and their dynamical interaction with the shear flow structure
Plasma Physics
2019-07-22 v3
Abstract
We present experimental observations suggesting that the non-diffusive avalanche-like events are a prevalent and universal process of the electron turbulent heat transport in tokamak core plasmas. They are observed in the low confinement mode and the weak internal transport barrier tokamak plasmas in the absence of magnetohydrodynamic instabilities. In addition, the electron temperature profile corrugation, which indicates the existence of the shear flow layers, is clearly demonstrated as well as their dynamical interaction with the avalanche-like events. The measured width of the profile corrugation is around , which implies the mesoscale nature of the structure.
Keywords
Cite
@article{arxiv.1806.04947,
title = {Experimental evidence of the non-diffusive avalanche-like electron heat transport events and their dynamical interaction with the shear flow structure},
author = {Minjun J. Choi and Hogun Jhang and J. -M. Kwon and J. Chung and M. Woo and L. Qi and S. H. Ko and T. S. Hahm and H. K. Park and H. -S. Kim and J. S. Kang and J. Lee and M. Kim and G. S. Yun and the KSTAR team},
journal= {arXiv preprint arXiv:1806.04947},
year = {2019}
}