Published July 21, 2008
| public
Journal Article
Cavity BPM system tests for the ILC energy spectrometer
Abstract
The main physics programme of the International Linear Collider (ILC) requires a measurement of the beam energy at the interaction point with an accuracy of 10-4 or better. To achieve this goal a magnetic spectrometer using high resolution beam position monitors (BPMs) has been proposed. This paper reports on the cavity BPM system that was deployed to test this proposal. We demonstrate sub-micron resolution and micron level stability over 20 h for a long BPM triplet. We find micron-level stability over 1 h for 3 BPM stations distributed over a long baseline. The understanding of the behaviour and response of the BPMs gained from this work has allowed full spectrometer tests to be carried out.
Additional Information
© 2008 Elsevier B.V. Received 23 December 2007; revised 7 April 2008; accepted 16 April 2008; available online 7 May 2008. We wish to thank the SLAC accelerator and End Station A operations and support staff. Our work has been supported by the U.S. Department of Energy under contract numbers DE-AC02-76SF00515 (SLAC) and DE-FG02- 03ER41279 (UC Berkeley), by the EC under FP6 "Research Infrastructure Action - Structuring the European Research Area" EuroTev DS Project under contract number RIDS-011899 and by the Science and Technology Facilities Council (STFC).Additional details
- Eprint ID
- 16351
- DOI
- 10.1016/j.nima.2008.04.033
- Resolver ID
- CaltechAUTHORS:20091015-120353367
- RIDS-011899
- Commission of the European Communities
- Science and Technology Facilities Council (STFC)
- DE-AC02-76SF00515
- Department of Energy (DOE)
- DE-FG02-03ER41279
- Department of Energy (DOE)
- Created
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2009-10-19Created from EPrint's datestamp field
- Updated
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2021-11-08Created from EPrint's last_modified field