Author: Cheng, Y.T.
Paper Title Page
WEPP016 Real-Time Synchronized Calibration and Computing System with EPICS Based Distributed Controls in the TPS XBPM System 541
  • J.-Y. Chuang, C.K. Chan, C.-C. Chang, C.M. Cheng, Y.T. Cheng, Y.M. Hsiao, Y.Z. Lin, Y.-C. Liu, C. Shueh, Y.C. Yang
    NSRRC, Hsinchu, Taiwan
  In synchrotron facilities, X-ray beam position monitor (XBPM) is an important detector for photon beam position monitoring and must be calibrated to ensure reliability and precision. However, light source operating conditions, such as beam orbit, injection and insertion device parameters, etc., can influence the sensitivity and specific weighting of photoemission current from the XBPM diamond blades. In the Taiwan Photon Source (TPS), Experimental Physics and Industrial Control System (EPICS) was utilized to implant an automatic calibration process. By using EPICS, we can ensure a seamless integration between the different front ends (FEs) and direct all data stream into a centralized server, creating a distributed XBPM calibration system. The XBPM performance indicators are analyzed to evaluate the validity of calibration parameters by input/ output controller (IOC) in each FE computing system. This paper will discuss the benefits of implanting this distributed control system into a working environment such as the TPS.
XBPM, TPS, Front end, Distributed XBPM calibration system
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About • paper received ※ 01 September 2019       paper accepted ※ 08 September 2019       issue date ※ 10 November 2019  
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