Calibration of the beam-position monitor system for the SLAC PEP-II B Factory

Author

Johnson, R. ; Smith, S. ; Kurita, N. ; Kishiyama, K. ; Hinkson, J.

Author_Institution

Linear Accel. Center, Stanford Univ., CA, USA

Volume

2

fYear

1997

fDate

12-16 May 1997

Firstpage

2110

Abstract

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 calibrations 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 on-board calibrator. Results for these portions of the calibration are presented

Keywords

accelerator magnets; calibration; colliding beam accelerators; electromagnets; electron accelerators; particle beam diagnostics; position measurement; storage rings; 1.5 cm; BPM; SLAC PEP-II B Factory; beam-position monitor calibration; button style pickups; electrical center; passive attenuation; quadrupole assemblies; quadrupole vacuum chambers; Assembly; Attenuation measurement; Calibration; Electric variables measurement; Extraterrestrial measurements; Mechanical variables measurement; Monitoring; Position measurement; Production facilities; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1997. Proceedings of the 1997

Conference_Location

Vancouver, BC

Print_ISBN

0-7803-4376-X

Type

conf

DOI

10.1109/PAC.1997.751124

Filename

751124