Solid state generator for powerful radio frequency ion sources in neutral beam injection systems

被引:33
作者
Kraus, W. [1 ]
Fantz, U. [1 ]
Heinemann, B. [1 ]
Franzen, P. [1 ]
机构
[1] Max Planck Inst Plasma Phys, D-85748 Garching, Germany
关键词
Radio frequency ion sources; Neutral beam injection system; Fusion reactor; Self-excited oscillator; Solid state generator; FACILITY; RF;
D O I
10.1016/j.fusengdes.2014.11.015
中图分类号
TL [原子能技术]; O571 [原子核物理学];
学科分类号
0827 ; 082701 ;
摘要
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. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码:16 / 20
页数:5
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