Internet Archive Scholar

Recent progress of the development of a long pulse 140GHz ECRH system on EAST

Handong Xu, Xiaojie Wang, Jian Zhang, Fukun Liu, Yiyun Huang, Jiafang Shan, Weiye Xu, Miaohui Li, J. Lohr, Y.A. Gorelov, J.P. Anderson, Yang Zhang (+16 others)
2019 EPJ Web of Conferences  

Preserved Fulltext

fulltext thumbnail
Web Archive Capture PDF (2.7 MB)
https://web.archive.org/web/20190429172309/https://www.epj-conferences.org/articles/epjconf/pdf/2019/08/epjconf_ec2018_04002.pdf

A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL. The file type is application/pdf.

A long pulse ECRH system with a goal of 140GHz 4MW 100~1000s has been developed to meet the requirement of steady-state operation on EAST. Gycom gyrotrons are employed in the No.1 and No.3 systems, CPI gyrotrons are used in the No.2 and No.4 systems. The development of the two Gycom gyrotron systems has been finished. The first short pulse EC wave injection has been demonstrated successfully during the EAST 2015 Spring campaign. In the commissioning and operation towards steadystate operation,
more » ... .4MW 100s has been injected to plasma successfully by using the No.1 system, 4.7keV 102s L-mode and 102s H-mode plasma have been achieved on EAST with the help of ECRH. Recently, a longest pulse of 0.55MW 1000s has been obtained based on calorimetric dummy load measurements on the No.3 gyrotron. The No.2 gyrotron also has been installed and partially tested, 500kW 80s has been demonstrated in the dummy load. The remaining No.4 gyrotron will be ready to test in 2018 or 2019. The whole 4MW system will be completed within two years. The 400s fully non-inductive H-mode operation would be expected in the next four years in the condition of fully tungsten diverter on EAST.
doi:10.1051/epjconf/201920304002 fatcat:fv7leoj4cbf3jitqlstufrwtku
DOAJ
Citation

Handong Xu, Xiaojie Wang, Jian Zhang, Fukun Liu, Yiyun Huang, Jiafang Shan, Weiye Xu, Miaohui Li, J. Lohr, Y.A. Gorelov, J.P. Anderson, Yang Zhang, Dajun Wu, Huaichuan Hu, Yong Yang, Jianqiang Feng, Yunying Tang, Bo Li, Wendong Ma, Zege Wu, Jian Wang, Liyuan Zhang, Fei Guo, Haozhang Sun, Xinsheng Yan, E. Poli, H. Laqua, J. Oosterbeek. "Recent progress of the development of a long pulse 140GHz ECRH system on EAST." EPJ Web of Conferences (2019) 04002