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brilliance

Paper Title Other Keywords Page
MOPD16 Comparative Studies of RF Beam Position Monitor Technologies for NSLS II diagnostics, photon, vacuum, injection 80
 
  • O. Singh, I. Pinayev
    BNL, Upton, Long Island, New York
  • G. Decker, B.X. Yang
    ANL, Argonne, Illinois
  
 

Sub-micron beam stability is a necessary performance requirement for the NSLS II light source, a substantial challenge testing the limits for presently available RF beam position monitoring methods. Direct performance comparisons between commercially available bpms and Advanced Photon Source in-house developed bpm were made at the APS Storage Ring. Noise floor, fill pattern dependence, and intensity dependence were investigated and correlated with photon diagnostics at the beam diagnostic beamline at APS sector 35. Key results will be presented.

  
TUPD03 Experience with the Commissioning of the Libera Brilliance BPM Electronics at PETRA III pick-up, feedback, undulator, controls 291
 
  • I. Krouptchenkov, A. Brenger, G. Kube, F. Schmidt-Föhre, K. Wittenburg
    DESY, Hamburg
  
 

PETRA III, a new high-brilliance synchrotron radiation source, is under commissioning at DESY. Its beam position measurement system is based on the Libera Brilliance electronics. BPM system is used for machine starting up and development. The system will also be used for the beam observation and orbit feedback. This paper presents the infrastructure, features of the BPM system and experience with the commissioning of the BPM electronics.

  
TUPD10 Beam Tests with Libera in Single Pass Mode instrumentation, pick-up, FEL, linac 306
 
  • A. Stella, M. Serio
    INFN/LNF, Frascati (Roma)
  • S. Bassanese, R. De Monte, M. Ferianis
    ELETTRA, Basovizza
  
 

The single pass functionality available in the recent release of the Libera Brilliance software, takes particular interest when compared with requirements of FEL machines, that need stable and precise control of the beam trajectory throughout Linacs and transfer lines in order to meet the stringent beam quality and transverse position constraints inside undulators. Results from tests performed on Libera with beam from ELETTRA, SPARC and DAΦNE, operating in Sincrotrone Trieste and LNF Frascati, are reported to characterize the resolution of single shot transverse beam position measurements.

  
TUPD12 BPM System and Fast Orbit Feedback Upgrade for the Taiwan Light Source feedback, controls, power-supply, insertion 312
 
  • C.H. Kuo, P.C. Chiu, K.T. Hsu
    NSRRC, Hsinchu
  
 

The BPM electronics of the Taiwan Light Source (TLS) have been upgraded to the Libera Brilliance in August 2008 to improve performance and functionality. Orbit feedback system is also migrated into fast orbit feedback system to enhance orbit stability. Infrastructure of the orbit acquisition system and orbit feedback system has been reconstructed to accommodate with new BPM electronics and satisfy requirements of fast orbit feedback loops. Gigabit Ethernet grouping was adopted for the data transfer rate of 10 kHz between BPM and the orbit feedback system. A summary of the efforts and performance of this upgrade will be presented in this report.