RF absorption and ion heating in helicon sources.
نویسندگان
چکیده
Experimental data are presented that are consistent with the hypothesis that anomalous rf absorption in helicon sources is due to electron scattering arising from parametrically driven ion-acoustic waves downstream from the antenna. Also presented are ion temperature measurements demonstrating anisotropic heating (T( perpendicular)>T(parallel)) at the edge of the discharge. The most likely explanation is ion-Landau damping of electrostatic slow waves at a local lower-hybrid-frequency resonance.
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ورودعنوان ژورنال:
- Physical review letters
دوره 88 19 شماره
صفحات -
تاریخ انتشار 2002