Conference Paper

Commissioning of the Lower Hybrid Current Drive System on Alcator C-Mod

Plasma Sci. & Fusion Center, MIT, Cambridge, MA
DOI: 10.1109/FUSION.2005.252948 Conference: Fusion Engineering 2005, Twenty-First IEEE/NPS Symposium on
Source: IEEE Xplore

ABSTRACT A lower hybrid current drive (LHCD) system has been developed for current profile control of advanced tokamak experiments on Alcator C-Mod. LHCD along with Ion Cyclotron Radio Frequency (ICRF) heating will be used to develop regimes with high confinement, high betan and high bootstrap fraction and extend them to quasi-steady-state conditions. This paper will describe the commissioning and initial operation of the LHCD system that includes a 50 kV, 208 A pulsed-power supply, twelve 250 kW Klystron transmitters, a 96 waveguide launcher and required control, protection and data acquisition systems

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