Anomalous transport: Difference between revisions

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The impression is that anomalous transport is more difficult to control in tokamaks than in stellarators. However, limited control in tokamaks is possible by making use of edge transport barriers (cf. [[H-mode]]) and [[Internal Transport Barrier]]s (ITBs). This reduces transport to Neoclassical levels, at least transiently.
The impression is that anomalous transport is more difficult to control in tokamaks than in stellarators. However, limited control in tokamaks is possible by making use of edge transport barriers (cf. [[H-mode]]) and [[Internal Transport Barrier]]s (ITBs). This reduces transport to Neoclassical levels, at least transiently.


Particularly in optimised stellarators (W7-AS), transport tends to be close to Neoclassical levels.
Particularly in optimised stellarators (W7-AS), transport can be close to Neoclassical levels.
<ref>[http://dx.doi.org/10.1088/0741-3335/50/5/053001 M. Hirsch et al, ''Major results from the stellarator Wendelstein 7-AS'', Plasma Phys. Control. Fusion '''50''' (2008) 053001]</ref>
<ref>[http://dx.doi.org/10.1088/0741-3335/50/5/053001 M. Hirsch et al, ''Major results from the stellarator Wendelstein 7-AS'', Plasma Phys. Control. Fusion '''50''' (2008) 053001]</ref>


== References ==
== References ==
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