Beam Position Monitor System for PEP II

Conference · Mon Sep 12 04:00:00 EDT 2011 · Conf.Proc.C970512:2122,1997

OSTI ID:1024625

Smith, Stephen R; Aiello, G Roberto; Hendrickson, Linda J; Johnson, Ronald G; Mills, Mark R; Olsen, Jeff J

We describe the beam position monitor system built for PEP-II, the B-factory at SLAC. The system reports beam position for bunches of between 5 x 10{sup 8} and 8 x 10{sup 10} electron charges, either singly or as continuous streams of bunches every 4.2 ns. Resolution at full charge is to be better than 10 microns in a single turn. Higher resolution is available via on-board multi-turn averaging. The position signal is processed in a 20 MHz bandwidth around 952 MHz. This bandwidth, rather broader than that typical of RF position monitors, allows good resolution for low charge single bunches. Additional novel features include stringent control of return losses in order to minimize cross-talk between nearby bunches which may contain very different charges. The digitizing electronics is multiplexed between the two PEP-II storage rings. Design, construction, and installation experience, as well as first results with beam are presented.

• Research Organization: SLAC National Accelerator Laboratory (SLAC)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 1024625
• Report Number(s): SLAC-PUB-14590
• Conference Information: Journal Name: Conf.Proc.C970512:2122,1997
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
Accelerators
ACCSYS
BEAM POSITION
CONSTRUCTION
DESIGN
ELECTRONS
MONITORS
RESOLUTION
STANFORD LINEAR ACCELERATOR CENTER
STORAGE RINGS