Reduction of the electron thermal conductivity produced by ion Bernstein waves on the Frascati Tokamak Upgrade tokamak

• DOI: 10.1063/1.1408912
• Publication Date: 2002-07-26T14:24:57Z
• Authors: R. Cesario; A. Cardinali; C. Castaldo; M. Leigheb; M. Marinucci; V. Pericoli-Ridol...; F. Zonca; G. Apruzzese; M. Borra; R. De Angelis; E. Giovannozzi; L. Gabellieri; H. Kroegler; G. Mazzitelli; P. Micozzi; L. Panaccione; P. Papitto; S. Podda; G. Ravera; B. Angelini; M. L. Apicella; E. Barbato; L. Bertalot; A. Bertocchi; G. Buceti; S. Cascino; C. Centioli; P. Chuilon; S. Ciattaglia; V. Cocilovo; F. Crisanti; F. De Marco; B. Esposito; G. Gatti; C. Gormezano; M. Grolli; F. Iannone; G. Maddaluno; G. Monari; P. Orsitto; D. Pacella; M. Panella; L. Pieroni; G. B. Righetti; F. Romanelli; E. Sternini; N. Tartoni; P. Trevisanutto; A. A. Tuccillo; O. Tudisco; V. Vitale; G. Vlad; M. Zerbini
• Keywords: AMBIENTALI; 0103 physical sciences; Settore FIS/07 - FISICA APPLICATA (A BENI CULTURALI; BIOLOGIA E MEDICINA); 01 natural sciences; 7. Clean energy

Operating with a high frequency and a wave guide antenna, the ion Bernstein wave (IBW) experiment on the Frascati Tokamak Upgrade is not dominated, as expected, by nonlinear plasma edge phenomena. By coupling IBW power, a simultaneous increase of plasma density and central electron temperature (⩾2 keV) is produced when the confinement magnetic field is adjusted to set an ion cyclotron resonant layer in the plasma bulk. Transport analysis indicates a reduction of the electron thermal transport inside the internal resonant layer larger than a factor of 2.