The x-ray imaging crystal spectrometer (XICS) for Korea Superconducting Tokamak Advanced Research (KSTAR) has been upgraded to increase its performance including measurement capabilities and stable operation. A dual crystal assembly for simultaneous measurements of the helium-like and hydrogen-like Ar spectra is successfully installed for improving measurement capabilities. Using a safety viewing port with an illuminator and removing the XICS control system from the harsh KSTAR tokamak hall for a stable operation are newly performed. The experimental results from the improved XICS are investigated.

中文翻译：

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KSTAR上利用双晶组件的X射线成像晶体光谱仪的研究进展

韩国超导托卡马克高级研究（KSTAR）的X射线成像晶体光谱仪（XICS）已升级，以提高其性能，包括测量能力和稳定的操作。已成功安装用于同时测量氦和氢样Ar光谱的双晶体组件，以提高测量能力。新近使用了带照明器的安全观察口，并从严苛的KSTAR托卡马克大厅拆除XICS控制系统，以实现稳定的操作。研究了改进的XICS的实验结果。