Y. Ding, G. Zhuang, W. J. Wang, J. Yao, X. Q. Zhang, Y. Pan
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引用次数: 3
摘要
在联合德克萨斯实验托卡马克(J-TEXT)上设计并开发了一种新型真空系统，该系统由两个泵站、一个泰勒排放清洗(TDC)系统和充气组成。利用该系统，J-TEXT托卡马克的真空容器可以很容易地达到允许机器运行的真空条件。真空抽气系统的分控制系统具有自我保护功能，可靠，使用方便。腔内可将基压降至6.4×10−6 Pa, 12h总泄漏和放气速率低于1.5×10−8 Pa m3/s。此外，在J-TEXT托卡马克每次运行实验前，采用TDC子系统对真空室的第一面壁面进行清洗，以保证装置壁面条件良好。真空系统的基本功能满足J-TEXT托卡马克实验的基本要求。
A new vacuum system is designed and developed on the Joint Texas Experimental tokamak (J-TEXT), which consists of two pumping stations, a Taylor discharge cleaning (TDC) system and gas puffing. With this system, the vacuum vessel of the J-TEXT tokamak can easily reach the vacuum conditions which allow the operation of the machine. The sub-control system of the vacuum pumping systems with the self-protection function is reliable and easy to use. Inside the chamber, the base pressure can be lowered to 6.4×10−6 Pa, and the total leakage and outgassing rates in 12 h is below 1.5×10−8 Pa m3/s. Moreover, the TDC sub-system is used to clean the first facing walls of vacuum chamber to guarantee good wall conditions of the device before each run of the experimental campaign on the J-TEXT tokamak. The basic functions of the vacuum system meet the essential requirements for the present experiments on the J-TEXT tokamak.
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