Antenna-plasma coupling theory for ICRF heating

Conference · Tue Feb 01 04:00:00 EST 1983

OSTI ID:6368802

Ram, A; Bers, A

An analytical and numerical study of the antenna-plasma coupling theory in the slab geometry is presented. We model the antenna to be a current sheet of finite poloidal and toroidal dimensions which is screened from the plasma by a sheath of anisotropic conductivity that shorts out locally the toroidal component of the rf field. The effect of the feed lines that carry the current to the antenna is ignored. The plasma is described by its cold dielectric tensor having an inhomogeneous density and applied magnetic field. The density at the sheath is assumed to be large enough to allow us to consider the excitation of only the fast component of the ICRF wave. The radiation impedance of, and the field excitation by, such an antenna structure are calculated. The analytical analysis is carried out when we ignore the explicit spatial derivatives of the plasma dielectric tensor elements that occur in the equations describing the plasma fields.

• Research Organization: Massachusetts Inst. of Tech., Cambridge (USA). Plasma Fusion Center
• DOE Contract Number: AC02-78ET51013
• OSTI ID: 6368802
• Report Number(s): DOE/ET/51013-71; PFC/CP-83-1; CONF-830210-17; ON: DE83010253
• Country of Publication: United States
• Language: English

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ELECTRIC CONDUCTIVITY
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