Staggeredblade photon beam position monitor at Hefei Light Source

In order to reduce the influence of beam size, a photon beam position monitor (PBPM) called staggered-blade PBPM was designed and installed in the machine diagnostic beamline (MDBL) at the Hefei Light Source (HLS), and Libera Photon was used for data processing and output. The ratio method and the log-ratio method were put forward based on the differenceover-sum (/) method. The main performances of staggered-blade PBPM were then analyzed with the three methods. The results of online calibration match well with the calculated results. Some application researches have also been done.