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NRC cuts fees by 50 percent for advanced reactor applicants
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B. Weyssow
Fusion Science and Technology | Volume 41 | Number 2 | March 2002 | Pages 216-224
Transport and Instabilities | doi.org/10.13182/FST02-A11963520
Articles are hosted by Taylor and Francis Online.
The classical transport theory is strictly valid for a plasma in a homogeneous and stationary magnetic field. In the '60, experiments have shown that this theory does not apply as a local theory of transport in Tokamaks. It was shown that global geometric characteristics of the confining elements have a strong influence on the transport. Three regimes of collisionality are characteristic of the neoclassical transport theory: the banana regime (the electronic diffusion coefficient increases starting from zero), the plateau regime (the diffusion coefficient is almost independent of the collisionality) and the Pfirsch-Schlüter regime (the electronic diffusion coefficient again increases with the collisionality).