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Wang, J. P.

Paper Title Page
RPPE056 Status of the NSRL Storage Ring UHV System After Project-II 3334
 
  • Y. Wang, L. Fan, C. Y. Guan, D. M. Jiang, J. P. Wang, W. Wei, F. Y. Zhao
    USTC/NSRL, Hefei, Anhui
 
  The NSRL project-II has been finished in December 2004. The UHV system of storage ring has undergone improvement and now provide long beam lifetime and stable operations, the average pressure of ring is better than 2 × 10-8 Pascal without beam and 1 × 10-7 Pascal with beam, The typical beam lifetime is 12 hours at 300 mA and 800 MeV without wiggler and 8 hours at 300 mA and 800 MeV with wiggler on. The improvements and status of NSRL storage ring are described in this paper.  
RPPT045 A Method to Calibrate Beam Position Monitor at HLS 200 MeV LINAC 2896
 
  • J.-H. Li, Y. Cao, H. He, K. Jin, P. Lu, B. Sun, J. P. Wang, Y. Wang, P. Zheng
    USTC/NSRL, Hefei, Anhui
 
  In order to improve injection efficiency of HLS 200Mev LINAC, we redesign a new strip line beam position monitor system, which is consisted of a strip line structure and a signal processing system. We decide on an online calibration method based on beam to find out the geometry centre displacement and relative gain offset. Before the BPM testing bench has been prepared, we make a simulation based on the model accounted for all factors influencing signal amplitudes and get the calibrating results. At last, we analyze the nonlinearity effect on the calibration results.