Note on the relation between profile scalelengths and lambda's

The calculation of the inverse scalelengths $R/L_T$, $R/L_n$ may depend on the choice of the radial variable, depending on the definition of the scalelength. The value of $\lambda_T$ and $\lambda_n$, as defined in [O. Sauter {\it et al}, Phys. Plasmas {\bf 21} (2014) 055906], do depend on the radial variable used in the exponential. We discuss the various options and the typical values obtained with C-Mod and TCV equilibria.


Year:
2016
Publisher:
SPC-EPFL
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 Record created 2016-04-11, last modified 2018-01-28

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