RF power diagnostics and control on the DIII-D, 4 MW 30-120 MHz Fast Wave Current Drive System (FWCD)

Abstract

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Vulnerability of Feedthroughs Operated at a Low-Impedance Point on DIII-D

“…Each array is fed by a single 2-MW 30-to 120-MHz transmitter built by ABB (now Thales Broadcast and Multimedia AG). The matching circuit for the arrays employs ten adjustable tuning elements and is designed to cover the range of 60 to 120 MHz [2]. A schematic diagram is shown in Fig.…”