Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
271018 | Fusion Engineering and Design | 2015 | 5 Pages |
Abstract
Radio frequency ion sources used in neutral beam injection systems (NBI) of fusion machines are currently supplied by self-excited RF generators. These generators have both a low power efficiency and a limited frequency stability, therefore transistorized amplifiers are being considered for the power supply of the next generation of RF sources. A 75 kW generator, originally designed for broadcasting, has been tested with a negative ion source. High operational reliability and a very good matching to the plasma load has been demonstrated. These results make this generator type a very promising candidate for future NBI systems.
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Authors
W. Kraus, U. Fantz, B. Heinemann, P. Franzen,