Self-consistent full wave analysis of lower hybrid current drive in weak and strong absorption regimes on Alcator C-Mod
POSTER
Abstract
We have developed [1] a coupled solver for the lower hybrid problem that solves for the full wave fields with a self-consistent electron distribution function. We will discuss the results of simulations of experiments on Alcator C-Mod in the weak and strong absorption regimes through comparisons between a synthetic hard X-ray (HXR) diagnostic and the experimentally measured HXR. Ray tracing simulations will be used to quantify the importance of full wave effects in the two scenarios. Additionally, we will describe recent improvements in the solver efficiency and the development of a python driver for automating the iteration between the Fokker-Planck and full wave code and ensuring input consistency. \\[4pt] [1] J. C. Wright et al, Phys. Plasmas 16, 072502 (2009).
Authors
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J.C. Wright
PSFC - MIT, PSFC-MIT
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Jungpyo Lee
MIT PSFC, PSFC-MIT
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P.T. Bonoli
PSFC-MIT, MIT PSFC, PSFC - MIT, MIT
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A.E. Schmidt
MIT Plasma Science and Fusion Center, PSFC - MIT, MIT PSFC, PSFC-MIT
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Robert Harvey
CompX, COMPX
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E.J. Valeo
PPPL, Princeton, NJ, PPPL