Suppression of turbulence by trapped electrons in optimised stellarators

24 Feb 2020 Proll J. H. E. Xanthopoulos P. Helander P. Plunk G. G. Faber B. J. Görler T. Smith H. M. Pueschel M. J.

In fusion devices, the geometry of the confining magnetic field has a significant impact on the instabilities that drive turbulent heat loss. This is especially true of stellarators, where the "trapped electron mode" (TEM) is stabilised if specific optimisation criteria are satisfied, as in the Wendelstein 7-X experiment (W7-X)... (read more)

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