An overview of diagnostic upgrade and experimental progress in the KTX

Nuclear Fushion

article

Wandong Liu¹  Wenzhe Mao¹  Tao Lan¹  Ge Zhuang¹  Jian Zheng¹  Peng Yuan¹  Hong Li¹  Jinlin Xie¹  Ahdi Liu¹  Zhengwei Wu¹  Zixi Liu¹  Shude Wan¹  Hai Wang¹  Xiaohui Wen¹  Haiyang Zhou¹  Zian Wei¹  Wei You¹  Cui Tu¹  Mingsheng Tan¹  Zichao Li¹  Yolbarsop Adil¹  Hangqi Xu¹  Tijian Deng¹  Junfeng Zhu¹  Chen Chen¹  Sen Zhang¹  Jiaren Wu¹  Yiming Zu¹  Bing Luo¹  Chijin Xiao¹  Weixing Ding¹ 

[1] Key Laboratory of Basic Plasma Physics and Department of Engineering and Applied Physics, University of Science and Technology of China;Plasma Physics Laboratory, University of Saskatchewan

关键词: Ultra-stable upconversion nanoparticles;    two-photon luminescence;    in vivo brainangiography;    low excitation power density.;   

DOI  :  10.1088/1741-4326/ab168c

来源: Institute of Physics Publishing Ltd.

【 摘 要 】

The Keda Torus eXperiment (KTX) is still operated in the commissioning phase, and preparation for the operation capability of the KTX phase II upgrade is underway. The diagnostics in the KTX have been greatly developed: (1) the terahertz interferometer has been upgraded to seven chords for electron density profile inversion; (2) a Thomson scattering system with a 5 Joule laser has been installed and commissioning is in progress; (3) a 3D movable probe system has been developed for the electromagnetic turbulence measurement; (4) double-foil soft x-ray imaging diagnostics have been set up and a bench test has been completed; (5) an edge capacitive probe has been installed for the radial electrical field measurement; (6) a multi-channel spectrograph system has been built for detecting impurities of carbon and oxygen. In addition, the design of a new compact torus injection system has been completed for feeding and momentum driving. Pilot research, such as the 3D reversed field pinch physics and electromagnetic turbulence, etc, have been conducted in the discharge status of the KTX. The 3D spectra characters of electromagnetic turbulence are firstly measured using a classical two-point technique by Langmuir probe arrays set on the 3D movable probe system and edge magnetic sensors. The forward scattering is collected by the interferometer system, which shows the potential for turbulence research. The electromagnetic turbulence is tentatively investigated in the KTX. The formation of a quasi-single-helicity state in the KTX regime is also preliminarily explored in simulation.

【 授权许可】

Unknown