Helicon wave excitation and propagation in a toroidal heliac: Experiment and theory

Journal Article · Wed Mar 01 04:00:00 EST 1995 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.871432· OSTI ID:165028

Zhang, B C; Borg, G G; Blackwell, B D ^[1]

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1. Plasma Research Laboratory, Research School of Physical Sciences and Engineering, Australian National University, Canberra 0200 ACT (Australia)

In this paper a comparison between theoretical calculations and experimental measurements of helicon wave coupling by a partial-turn shielded antenna in a toroidal heliac is presented. Despite the complicated heliac geometry, the wave dispersion, field profiles, and antenna radiation resistance are described well by a cylindrical uniform plasma theory. It also presents a simple formula relating the radiation resistance to the measured wave magnetic field per unit antenna current. Finally, the scaling of these results to the Heliac-1 (H-1) [Fusion Technol. {bold 17}, 123 (1990)]; a larger heliac now operating at the Australian National University (ANU), is discussed. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.

• OSTI ID: 165028
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 3 Vol. 2; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANTENNAS
HELICON WAVES
PLASMA HEATING
STELLARATORS
TOROIDAL CONFIGURATION
WAVE PROPAGATION