Calibration of the beam-position monitor system for the SLAC PEP-II B factory
Conference
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OSTI ID:525015
- and others
The Beam-Position Monitors (BPM) for the PEP-II B Factory consist of four 1.5-cm diameter button style pickups mounted on the diagonals of the quadrupole vacuum chambers. Before installation of the vacuum chambers in the quadrupole assemblies, the electrical center of the BPMs is measured with respect to the mechanical center in a calibration test stand. In this paper the calibration test stand is described and the precision and accuracy of the calibrations are presented. After installation of the quadrupole assemblies in the PEP-II tunnel, the passive attenuation for each channel of the system is measured to preserve the accuracy of the calibration. Finally, the active electronics includes an onboard calibrator. Results for these portions of the calibration are presented.
- Research Organization:
- Stanford Linear Accelerator Center, Menlo Park, CA (United States); Lawrence Livermore National Lab., CA (United States); Lawrence Berkeley Lab., CA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (United States)
- DOE Contract Number:
- AC03-76SF00515; AC03-76SF00098; W-7405-ENG-48
- OSTI ID:
- 525015
- Report Number(s):
- SLAC-PUB--7560; CONF-970503--281; ON: DE97007250
- Country of Publication:
- United States
- Language:
- English
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