@inproceedings{546138985bf54e42beacd9a3c51905e2,
title = "Turbulent transport studies in alcator C-Mod ohmic plasmas",
abstract = "Extensive gyrokinetic studies of low density ohmic plasmas in Alcator C-Mod revealed the important role of deuterium depletion in the presence of a second (impurity) ion species with moderate Zi, resulting in reduced ion transport and dominant electron transport in the outer half of the plasma column. Additional examination of linear growth rates is in agreement with this observation. The radial electric field shear does not play a dominant role in the stability of these plasmas. Transport in the inner half of the plasma core is not explained by the gyrokinetic codes. Potential physical mechanisms to give the enhanced transport in the plasma core include mild sawteeth (although the inversion radius is typically r/a < 0.35), or drift waves driven by ohmic electron drift which at the lowest densities considered here can attain values as high as U/Cs = 6 near the center, and diminish radially in accordance with the electron temperature profile [4].",
author = "M. Porkolab and J. Dorris and P. Ennever and C. Fiore and A. Hubbard and M. Greenwald and Y. Ma and Y. Podpaly and Reinke, {M. L.} and J. Rice and Rost, {J. C.} and N. Tsujii and J. Candy and Staebler, {G. M.} and R. Waltz and P. Diamond",
year = "2011",
language = "English",
isbn = "9781618395931",
series = "38th EPS Conference on Plasma Physics 2011, EPS 2011 - Europhysics Conference Abstracts",
pages = "1724--1727",
booktitle = "38th EPS Conference on Plasma Physics 2011, EPS 2011 - Europhysics Conference Abstracts",
note = "38th EPS Conference on Plasma Physics 2011, EPS 2011 ; Conference date: 27-06-2011 Through 01-07-2011",
}