Author: Chen, J.
Paper Title Page
MOPWA044 TLS Booster Measurement and Observation by New BPM Electronics 768
  • P.C. Chiu, J. Chen, Y.-S. Cheng, K.T. Hsu, S.Y. Hsu, K.H. Hu, C.H. Kuo
    NSRRC, Hsinchu, Taiwan
  Taiwan Light Source (TLS) is a 1.5 GeV synchrotron based light source and its booster synchrotron was delivered in 1992. Due to the new project Taiwan Photon Source proceeded at the same site, some up-to-date device are available now before TPS civil construction complete and temporarily adapted for TLS booster to improve its operations. The major parameters of the TLS booster synchrotron are measured. It also provides a chance to experience for the TPS project booster diagnostic.  
WEPWA053 Control System of In-vacuum Undulator in Taiwan Photon Source 2238
  • C.Y. Wu, J. Chen, Y.-S. Cheng, P.C. Chiu, K.T. Hsu, C.Y. Liao
    NSRRC, Hsinchu, Taiwan
  Insertion device (ID) is a crucial component in third-generation synchrotron light sources, which can produces highly-brilliant, forward-directed and quasi-monochromatic radiation over a broad energy range for various experiments. In the phase I of the Taiwan Photon Source (TPS) project, seven IU22s (In-Vacuum Undulator) will be planned, constructed, and installed. The control system for IU22 is based on the EPICS architecture. The main control components include the motor with encoder for gap adjustment, trimming power supply for corrector magnets, ion pumpers and BA gauges for vacuum system, temperature sensors for ID environmental monitoring and baking, and interlock system (limit switches, emergency button) for safety. The progress of IU22 control system will be summarized in this report.  
WEPWA054 Rejuvenation of Control System of the Undulator 50 in Taiwan Light Source 2241
  • C.Y. Liao, J. Chen, P.C. Chiu, K.T. Hsu, C.Y. Wu
    NSRRC, Hsinchu, Taiwan
  The Undulator 50 (U50) for Taiwan Light Source (TLS) was installed on March 1997 at NSRRC. It provides service for more than 15 years. Control system of U50 includes a PC running MS-DOS for local control. Motion controller contains two indexers with driver via RS-232 interface. It equip with IEEE-488 interface to connect to the VME system for remote access. The response time for command and reply is in the order of second, thus the throughput of the experiment for energy scan is time-consuming. New U50 control system will share the standard environment for insertion devices (ID) control for the Taiwan Photon Source (TPS) project. Ethernet based motion controller was chosen to drive motor drivers. All control functionality will coordinate by the cPCI EPICS IOC. To compatible with TLS existed control environment, a server program was develop to translate the protocol to EPICS PVs. All existed GUI of TLS still can be used. These improvements of control system for U50 are essential upgrading geared to avoid obsolescence of the control related parts, increase productivity and support on-the-fly experiments. The progress of the controls plan will be summarized in this report.  
THPEA049 Implementation of the EPICS Data Archive System for the TPS Project 3255
  • Y.-S. Cheng, Y.-T. Chang, J. Chen, P.C. Chiu, K.T. Hsu, C.H. Kuo, C.Y. Liao
    NSRRC, Hsinchu, Taiwan
  The EPICS framework was chosen as control system infrastructure for the new project of 3 GeV synchrotron light source (Taiwan Photon Source, TPS). Various control system prototypes of TPS with the EPICS mechanism have been gradually built and tested. One EPICS archive system is necessary to be developed to record various machine parameters and status information for long time logging. The archive system of CSS (Control System Studio) which named BEAUTY (Best Ever Archive Toolset, yet) was built to be used as the TPS data archive system in 3rd quarter of 2012. An archive engine takes PV data from EPICS IOCs via channel access, and stores them in the data storage. The PostgreSQL RDB (Relational Database) was adopted as the data storage for the BEAUTY. Both the historic PVs data and the archive engine configuration are saved into the same RDB. The archived data can be retrieved in a form of graphical representation using the CSS-based data browser. Taking the performance and redundancy into considerations, the storage servers and RDB table structures are tuned relatively. The efforts will be described at this report.  
THPEA050 Power Supply Control and Applications Development for the TPS Storage Ring Quadrupole and Sextupole Magnet 3258
  • Y.-S. Cheng, J. Chen, P.C. Chiu, K.T. Hsu, C.Y. Liao, C.Y. Wu
    NSRRC, Hsinchu, Taiwan
  The TPS intermediate power supply for storage ring quadrupole and sextupole magnets with current rating 250 Amp will be equipped with Ethernet interface. The quadrupole power supply is 18bit with higher stability than sextupole with 16 bits, and have internal data buffer for post-mortem capability. The dedicated IOCs are built individually at the 24 cPCI platforms to manipulate the devices of the 24 cells of storage ring respectively. Each IOC is used to control 10 quadrupole magnet power supplies and 7 sextupole magnet power supplies. The GUIs of storage ring quadrupole and sextupole power supplies controls were implemented by the EDM toolkit. The client console can use the specific EDM pages to access power supplies via PVs channel access. The measured currents of quadrupole and sextupole power supplies were read back for observing performance. Some applications, like the degauss process, boot function and etc, are also developed with the specific toolkit. The efforts will be summarized at this report.  
THPEA052 TLS Operation Information Management: Automatic Logging Tools 3261
  • C.C. Liang, H.C. Chen, J. Chen, C.K. Chou, S. Fann, K.T. Hsu, K.H. Hu, J.A. Li, D. Lin, T.F. Lin, Y.K. Lin, Y.-C. Liu, C.Y. Wu
    NSRRC, Hsinchu, Taiwan
  • Y.-C. Liu
    NTHU, Hsinchu, Taiwan
  The Taiwan Light Source (TLS) has been operated in the Top-up mode since October 2005 and has maintained a beam current of 360mA since 2010. Several essential parameters and waveforms are constantly recorded as routine accelerator operation reference. Therefore, five LabVIEW-based data and waveform logging software programs have been developed for the purpose of preliminary diagnose at the TLS. In this report, certain actual cases in regular operation are presented.