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Abstract

Electron cyclotron current drive is based on the Fisch-Boozer asymmetric resistivity mechanism. This mechanism is briefly described and its implications for non-inductive current drive pointed out. The theoretical work on electron cyclotron current drive can be divided into non-relativistic, relativistic and non-linear theories. The calculations in the first category are the most elaborate where the full Fokker-Planck model has been solved including the effects of trapped electrons and toroidal geometry. Relativistic dynamics will be important for a description of superthermal electrons in reactor like plasmas and produce a bound to the current to power ratio. In addition relativistic corrections to the resonance condition are important for existing tokamaks. Finally, it is clear that non-linear effects will determine the practical application of electron cyclotron current drive. However, a non-linear calculation including all the significant effects has yet to be carried out.

Additional information

Authors: LASHMORE DAVIES C N CULHAM LABORATORY, ABINGDON, OXON (UK), CULHAM LABORATORY, ABINGDON, OXON (UK)
Bibliographic Reference: NON-INDUCTIVE CURRENT DRIVE IN TOKAMAKS - IAEA TECHNICAL COMMITTEE MEETING, CULHAM LABORATORY (UK), APRIL 18-21, 1983 VOL. II, PP. 473-495 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 31917 ORA
Availability: Can be ordered online
Record Number: 1989123047500 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en
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