Institute of Plasma Physics;
Chinese Academy of Sciences;
Hefei 230031;
People's Republic of China;
University of Chinese Academy of Sciences;
Beijing 100049;
People's Republic of China;
Department of Physics and Astronomy;
Johns Hopkins University;
Baltimore;
MD 21218;
United Statesof America;
Oak Ridge Associated Universities;
Oak Ridge;
TN 37831;
United States of America;
ME-SXR; ‘multi-foil’ technique; electron temperature estimate; RMP; ELM; impurity;