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supported by National Natural Science Foundation of China(Nos.12105087,12275096,and 11922503);the Joint Funds of the National Natural Science Foundation of China(No.U21A20440);the Science and Technology Planning Project of Sichuan Province(No.2023YFG0139)。
The Doppler backscattering(DBS)diagnostic is widely used to measure the localized density fluctuations and the propagation velocity of turbulent structures.Microwave is launched at a frequency that approaches a cutoff...
supported by the National Magnetic Confinement Fusion Energy Research Project(No.2014GB108001 and No.2015GB120003);Fundamental Research Funds for the Central Universities of China,Huazhong University of Science and Technology(Grant No.2015TS010)
The Q-band (33-50 GHz) fast sweep frequency modulated continuous wave (FMCW) reflectometry has been recently developed for electron density profile measurement on the Joint TEXT tokamak. It operates in ordinary mo...
supported by the National Magnetic Confinement Fusion Science Program of China(Nos.2014GB106000 and 2014GB106003);National Natural Science Foundation of China(Nos.11275234,11305215,11305208)
By installing an X-mode polarized Q-band(32-56 GHz) reflectometry at the low field side on EAST,the zero density cutoff layer was determined and the edge density profile was measured in normally operating plasmas.A ...