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Plasma production by helicon waves

1993; IOP Publishing; Volume: 2; Issue: 1 Linguagem: Inglês

10.1088/0963-0252/2/1/002

1361-6595

T. Shoji, Y. Sakawa, S. Nakazawa, K. Kadota, Teruyuki Sato,

Magnetic confinement fusion research

High density plasma production using m=+1 and m=-1 helicon waves is studied. Characteristics of cylindrical helicon waves including effects of a vacuum gap between the plasma and the conducting wall and of a non-uniform density profile are presented. The m=+1 and m=-1 helicon modes are separately excited by a helical antenna, and the dependences of plasma density and antenna loading resistance on RF power are different for these modes.