Abstract： Radial propagation of electrostatic fluctuations in the edge plasma of Sino-United Spherical Tokamak (SUNIST) has been measured using Langmuir probes. The propagation characteristics of the floating potential fluctuations are analysed by the two-point correlation technique. The results show radially outward propagation of the turbulent fluctuations at all measured radial positions. The power-average wavenumber profile is approximately constant in plasma edge region and suddenly increases to the limiter. These results are in good agreement with the model predictions proposed by Mattor which suggests that the drift wave propagation may be a source of edge turbulence.
ZHANG Guo-Ping;HE Ye-Xi;WANG Wen-Hao;GAO Zhe;ZENG Li;XIE Li-Feng;FENG Chun-Hua. Observation of Radial Propagation of Electrostatic Fluctuations in Edge Plasma of the Sino United Spherical Tokamak[J]. 中国物理快报, 2004, 21(12): 2469-2471.
ZHANG Guo-Ping, HE Ye-Xi, WANG Wen-Hao, GAO Zhe, ZENG Li, XIE Li-Feng, FENG Chun-Hua. Observation of Radial Propagation of Electrostatic Fluctuations in Edge Plasma of the Sino United Spherical Tokamak. Chin. Phys. Lett., 2004, 21(12): 2469-2471.
YANG Qing-Wei;ZHOU Hang-Yu;FENG Bei-Bin;LIU Yi;PAN Yu-Dong;LI Wei;DUAN Xu-Ru;CHEN Wei;CUI Zheng-Ying;JI Xiao-Quan;DING Xuan-Tong;HL-A team. A New Criterion for Disruption Prediction on HL-2A[J]. 中国物理快报, 2006, 23(4): 891-894.
2004, Vol. 21 
