HL-2A托卡马克装置的工程和实验概况

Brief Introduction to Engineering and Experiment of HL-2A Tokamak

中国环流器二号A装置(HL-2A)是核工业西南物理研究院2002年投入实验运行的托卡马克,它是我国第1个具有偏滤器、等离子体截面具有一定垂直拉长的托卡马克。HL-2A的磁体使用铜导体,具有良好的灵活性和等离子体的可近性,其极向场线圈全部位于环向场线圈之内,位于真空室内的偏滤器的成形线圈可建立双零和单零的偏滤器位形。HL-2A已发展了30多套先进的等离子体诊断系统和总功率4 MW的辅助加热系统,加料技术得到持续发展。随着上述系统的建设和放电综合控制技术的提高,HL-2A装置已获得了高约束模式,这为开展先进托卡马克(AT)物理实验,ITER和聚变堆的科学、技术和工程问题等的研究奠定了基础。HL-2A也成为国际上最活跃的中型托卡马克,为国际托卡马克物理活动(ITPA)作出了积极贡献。

HL-2A Tokamak has been put into operation in Southwestern Institute of Physics since 2002. It is characterized by the first divertor and first elongated plasma cross-section in China. The coils of HL-2A are made up of copper conductor to enhance the flexibility and accessibility to plasma. All of the poloidal-field coils are located inside the toroidal-field coils. The multiple coils located inside the vacuum vessel are able to establish a double-null configuration. HL-2A has been equipped with 30 sets of advanced diagnostic systems and 4 MW auxiliary heating systems. The fueling system and technology of HL-2A keep being continuously developed. With the constructions for above systems and progress on the integrated technologies on the plasma discharge control, HL-2A has achieved H-mode plasma successfully. The experimental progresses on HL-2A are of significance for the advanced Tokamak plasma experiments and studies on the science, technique and engineering issues related to ITER and a fusion reactor, make HL-2A active for fusion plasma research and contribute to the international Tokamak activities.