Abstract:

Three schemes for HL-2A tokamak modification have been proposed to increase plasma parameters and obtain optimal plasma configuration. They are a local modification of adjusting the poloidal coils in vacuum vessel with remaining of vacuum vessel, a middle scale modification of rearranging poloidal coils with remaining of vacuum vessel and an enormous one of redesigning vacuum vessel and poloidal coils. Three schemes have been analyzed and compared, and the third one is optimal.

Key words: HL-2A main engine, Plasma configuration, Modification scheme

摘要：

为进一步提高HL-2A装置的放电参数和优化等离子体位形，给出了三种可能的主机改造途径：保留真空室，去掉并调整真空室内部分多极场线圈的局部改造方案；保留真空室，重新布局极向场线圈的中等规模改造方案；重新设计真空室和极向场线圈系统的大规模改造方案。对三种改造方案对放电参数和位形的影响和改造工程的可行性进行了分析比较，重新设计真空室和极向场线圈系统的大规模改造方案是最佳选择。

关键词: HL-2A主机, 等离子体位形, 改造方案