SUNIST球形托卡马克的外加n=1磁场系统

摘要

An external n=l magnetic field system is set up on the spherical tokamak SUNIST, in order to research the MHD instability control. The power supply of this system could steadily and reliably generate a specified discharge, which could reach the highest value in lms and keep a 3ms current platform, meanwhile the current could shut down instantly. Experimental results demonstrate that this system could create a majority of n=l mode magnetic field at the centre of vacuum chamber, which is an essential foundation for the researches of controlling MHD instability.%为在 SUNIST 球形托卡马克上进行 MHD 不稳定性控制研究,建立了一套外加 n=1 径向磁场系统.此径向磁场系统的电源能确保在 1ms 内达到电流峰值并维持 3ms 以上的电流平台,并且有快速关断功能.测试表明,此套径向磁场系统可以稳定可靠地提供在真空室中心产生以 n=1 模式为主的径向磁场,为开展控制 MHD 不稳定性研究奠定了基础.