2023.10.16研究成果
Gongさんの論文が英文科学雑誌に掲載
プラズマ中の電子温度揺動計測に関する研究成果"Development of correlation ECE system for electron temperature fluctuation measurement in LHD"がJournal of Instrumentation(IOP publishing)に10月16日に掲載されました． (M. Gong, M. Nishiura, R. Yanai, Y. Takemura, Journal of Instrumentation 18, C10007 (2023))
Correlation-ECE (C-ECE) is a standard method for investigating turbulence driven transport. This method allows electron temperature fluctuations that contain information on turbulent transport and independent thermal noise. The turbulence feature is extracted from a correlation analysis from two close locations. In this work, a C-ECE system employs a collective Thomson scattering diagnostic receiver, which is comprised of a 32 channels conventional C-ECE receiver and a fast digitizer-based digital C-ECE receiver, is utilized on the large helical device (LHD) to measure emission within the frequency range of 74–79.6 GHz. An MHD mode at 5 kHz is excited from the onset of neutral beam injection in a magnetic probe, and coherence spectra are obtained from two C-ECE receiver systems.
This paper shows it is possible to investigate the temperature fluctuation inside LHD with C-ECE diagnostics. I am very happy to have this paper to be published.