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HL-2A是在原德国ASDEX基础上改进的大型托卡马克装置,该装置带有上下两组偏滤器线圈。从目前的HL-2A的改进方案看,其几何尺寸、磁场位形和物理参数大体和ASDEX相似,只是环向磁场、等离子体电流及拉长比稍有不同。由于未来的HL-2A装置上带有偏滤器,而我们以前的位形计算大多在没有偏滤器位形的HL-1及HL-1M上进行的,所以开展有关HL-2A位形的物理研究及相关的数值计算和程序设计是很重要的工作。
HL-2A is a large tokamak device based on the original German ASDEX, with two divertor coils up and down. From the current HL-2A improvement program, its geometry, magnetic field configuration and physical parameters generally similar to ASDEX, but the toroidal magnetic field, the plasma current and elongation is slightly different. Since future HL-2A units have divertor filters and most of our previous configuration calculations were done on HL-1 and HL-1M without divertor configurations, a physical study of the HL-2A configuration And related numerical calculation and programming are very important work.