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一种用于兆瓦级NNBI射频离子源的新型排放控制方法

Puqiong Yang¹, Kun Chen¹, Caichao Jiang²

¹University of South China, Hengyang 421001,China.

The Review of scientific instruments

|August 8, 2025

概括

这项研究引入了一种用于射频 (RF) 驱动的基于负离子的中性束注射 (NNBI) 系统的新型放电控制方法. 这种新方法增强了射频电源合,并简化了磁场设计,以实现高效的离子束提取.

科学领域:

等离子体物理学的物理学
核聚变能源工程核聚变能源工程
技术加速器技术加速器技术

背景情况:

高效的功率合和高密度负离子束提取对于无线电频率 (RF) 驱动的负离子基中性束注入 (NNBI) 系统至关重要.
目前的NNBI系统在优化功率传输效率和简化波器磁场设计方面面临着挑战.

研究的目的:

建议和验证NNBI射频离子源的新型排放控制方法.
为了提高射频离子源电源的功率传输效率.
为了简化NNBI过器磁场的设计.

主要方法:

对射频离子源逆变器电源设计的分析.
基于频率调节的阻抗匹配控制方法的研究和模拟.
关于脉冲功率调制技术的建议,以优化电子温度分布.

主要成果:

拟议的逆变器电源展示了用于动态阻抗匹配的快速频率调整.
实现了高效的射频电源合到离子源中,改善了电磁兼容性.
观察到刺激线圈中弧形事件减少.

结论:

新的排放控制方法提高了NNBI系统的射频电源合效率.
脉冲功率调制简化了NNBI波器磁场设计,并降低了工程复杂性.
这种方法解决了高功率射频驱动负离子源的关键挑战.

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