Measurement of the mechanical vibration and its impact on the magnetic diagnostics in the J-TEXT tokamak

被引：0
|
作者：
Hu, Bo [1 ]
Zhou, Song [1 ]
Wang, Nengchao [1 ]
Li, Yangbo [1 ]
Mao, Feiyue [1 ]
Ren, Zhengkang [1 ]
He, Ying [1 ]
Zhao, Chuanxu [1 ]
Ding, Yonghua [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Phys, State Key Lab Adv Electromagnet Technol, Int Joint Res Lab Magnet Confinement Fus & Plasma, Wuhan 430074, Peoples R China
来源：
FUSION ENGINEERING AND DESIGN | 2024年 / 208卷
关键词：
Tokamak; Vibration; Magnetic oscillation; J; -TEXT; FUSION-REACTOR COMPONENTS;
D O I：
10.1016/j.fusengdes.2024.114670
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
The mechanical vibration and its profound impacts on the magnetic diagnostic measurement have been observed on the J-TEXT tokamak. To explain the low frequency magnetic oscillation induced by the vibration, an analytical model has been developed. The comparisons between the experimental results and the analytical model indicate that the vibration of the vacuum vessel is along two keystones of J-TEXT. Through vibration measurements of J-TEXT components, we have identified that the origin of vibration is the rapid change of the pre-magnetization field. Additionally, it is found that the relative vibrations between magnetic diagnostics and toroidal magnetic fields contribute to the low frequency magnetic oscillation. The results obtained in this work are not only important for the prediction of vibration in fusion devices, but also helpful for experimenters to input corrections in obtained diagnostic results.
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页数：10
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