Non-neoclassical up/down asymmetry of impurity emission on Alcator C-Mod
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ReinkeNonNeoNuclFus13.pdf
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Author(s)
Reinke, Matthew Logan
Rice, John E.
Greenwald, Martin J.
Howard, Nathaniel Thomas
Irby, James Henderson
Podpaly, Yuri
White, Anne E.
Hutchinson, Ian Horner
Hughes Jr, Jerry
Terry, James L
Date Issued
March 2013
Journal
Nuclear Fusion
Publisher
IOP Publishing
Citation
Reinke, M.L., J.E. Rice, I.H. Hutchinson, M. Greenwald, N.T. Howard, J.W. Hughes, J. Irby, Y. Podpaly, J.L. Terry, and A. White. “Non-neoclassical up/down asymmetry of impurity emission on Alcator C-Mod.” Nuclear Fusion 53, no. 4 (April 1, 2013): 043006.
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Author's final manuscript
Abstract
We demonstrate that existing theories are insufficient to explain up/down asymmetries of argon x-ray emission in Alcator C-Mod ohmic plasmas. Instead of the poloidal variation, ñ[subscript z]/〈n[subscript z]〉, being of order the inverse aspect ratio, ϵ, and scaling linearly with B[subscript t][superscript _ over n][subscript e]/I[2 over p], it is observed over 0.8 < r/a < 1.0 to be of order unity and exhibits a threshold behaviour between 3.5
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Massachusetts Institute of Technology. Plasma Science and Fusion Center
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DOI of Published Version
https://doi.org/10.1088/0029-5515/53/4/043006
