A poloidal non-uniformity of the collisionless parallel current in a tokamak plasma.
The collisionless distortion of the ion (electron) distribution function at certain points on a magnetic surface is studied in the framework of a simple model of a large aspect ratio tokamak plasma. The flow velocity driven by this distortion is calculated. The possibility of an additional non-uniform collisionless parallel current density on a magnetic surface, other than the known neo-classical non-uniformity is shown. The difference between the parallel current density on the low and high field side of a magnetic surface is close to the neoclassical bootstrap current density. The first Tore-Supra experimental test indicates the possibility of the poloidal non-uniformity of the parallel current density.
Bibliographic Reference: An oral paper given at: The 9th European Vacuum Conference Organised by: the Manufacturer Committee of the French Vacuum Society (SFV) Held at: Espace Condorcet de la Cité des Sciences et de l'Industrie - La Villette, Paris (FR)
Availability: Available from Association EURATOM-CEA, Departement de Recherches sur la Fusion Controlee, CEA Cadarache, F-13108 St Paul-Lez-Durance, FranceL%Tel: (+33) 4 42 25 70 01; Fax: (+33) 4 42 25 64 21 E-mail: firstname.lastname@example.org
Record Number: 200518301 / Last updated on: 2005-07-26
Original language: en
Available languages: en