Design and platform testing of the compact torus central fueling device for the EAST tokamak

Abstract Compact torus (CT) injection is a highly promising technique for the central fueling of future reactor-grade fusion devices since it features extremely high injection velocity and relatively high plasma mass. Recently, a CT injector for the EAST tokamak, EAST-CTI, was developed and platform...

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Bibliographic Details
Published in:Plasma science & technology 2023-06, Vol.25 (6), p.65601
Main Authors: KONG, Defeng, ZHUANG, Ge, LAN, Tao, ZHANG, Shoubiao, YE, Yang, DONG, Qilong, CHEN, Chen, WU, Jie, ZHANG, Sen, ZHAO, Zhihao, MENG, Fanwei, ZHANG, Xiaohui, HUANG, Yanqing, WEN, Fei, ZI, Pengfei, LI, Lei, HU, Guanghai, SONG, Yuntao
Format: Article
Language:English
Subjects:
central fueling
compact torus (CT)
EAST tokamak
EAST-CTI
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Summary:Abstract Compact torus (CT) injection is a highly promising technique for the central fueling of future reactor-grade fusion devices since it features extremely high injection velocity and relatively high plasma mass. Recently, a CT injector for the EAST tokamak, EAST-CTI, was developed and platform-tested. In the first round of experiments conducted with low parameter settings, the maximum velocity and mass of the CT plasma were 150 km·s −1 and 90 μ g, respectively. However, the parameters obtained by EAST-CTI were still very low and were far from the requirements of a device such as EAST that has a strong magnetic field. In future, we plan to solve the spark problem that EAST-CTI currently encounters (that mainly hinders the further development of experiments) through engineering methods, and use greater power to obtain a more stable and suitable CT plasma for EAST.
ISSN:1009-0630
2058-6272
DOI:10.1088/2058-6272/acaf61