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Published July 1984 | Published
Journal Article Open

Improving the energy-transfer efficiency of opening switch tokamak Ohmic heating transformers


It is shown that the energy-transfer efficiencies of opening switch and closing switch Ohmic heating transformers differ significantly, and that the efficiency of an opening switch transformer can be optimized by using an iron core with a substantial air gap (gap comparable to the plasma minor radius). A demonstration on the Caltech Encore gapped iron core tokamak is cited.

Additional Information

© 1984 American Institute of Physics. Received 29 December 1983; accepted 10 March 1984. This work was supported by National Science Foundation Grant No. ECS-8113533.

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