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Abstract

ASDEX (Axially Symmetric Divertor EXperiment) is a large tokamak with an air transformer. The relatively large stray field, compared with that of an iron transformer and the cable length from the experiment to the control room, make the magnetically induced and capacitively coupled noise signal in the cable relatively high. As a result of neutral injection (>4MW; 40kV) and lower hybrid ion cyclotron and Alfvèn wave heating, strong E-fields are produced and noise is coupled into the cables. These magnetic and electric field gradients during the plasma shot vary with time and location. This report tries to show how these noise signals can be reduced without reducing the broadcast frequency of the signal. The Electro Magnetic Compatibility and Interference (EMC, EMI) are discussed.

Additional information

Authors: GERNHARDT J, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE)
Bibliographic Reference: Report: IPP III/67 EN (1988)
Availability: Available from Max-Planck-Institut für Plasmaphysik, 8046 Garching bei München (DE)
Record Number: 198910470 / Last updated on: 1994-12-01
Category: PUBLICATION
Original language: en
Available languages: en