Key Laboratory of Dark Matter and Space Astronomy;
Purple Mountain Observatory;
Chinese Academy of Sciences;
Nanjing 210034;
China;
School of Astronomy and Space Science;
University of Science and Technology of China;
Hefei 230026;
China;
University of Applied Sciences and Arts Northwestern Switzerland;
Bahnhofstrasse 6;
5210Windisch;
Switzerland;
Space Science Laboratory;
University of California;
7 Gauss Way;
94720 Berkeley;
USA;
School of Space Science and Physics;
Shandong University;
Weihai 264209;
China;
techniques; X-ray; imaging-techniques; simulation; Sun; X-rays-Sun; flares;