NIFS-TECH-08

FULL TEXT (PDF, 866 KB)


Author(s):

Y. Zhao, Y. Torii, T. Mutoh, R. Kumazawa, F. Shimpo, T. Seki, , K. Saito, G. Nomura and T. Watari

Title:

ICRF Waveform Controlling

Date of publication:

Dec. 1999

Key words:

waveform control system, ICRF heating, multi-pulse, square wave, analog output, LabVIEW

Abstract:

Heating techniques have been researched and developed for high power and steady state operation of ion cyclotron range of frequencies (ICRF) heating on the Large Helical Device (LHD) in recent years. As a part of the heating system, the waveform control system plays an important role in ICRF heating experiments. This report describes the radio frequency (RF) waveform control system, the programming analysis, and hardware setup. Finally, some typical waveform examples generated by this RF waveform control system, and experimental results are given. The experimental results show that this RF waveform control system works quite well.

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