Referenced Items are not available for this document.
The CEBAF accelerator at Jefferson Lab is currently using an analog beam current monitoring (BCM) system for its machine protection system (MPS), which has a loss accuracy of 2 μA. Recent burn-through simulations predict catastrophic beam line component failures below 1 μA of loss, resulting in a blind spot for the MPS. The revised MPS requirements target an ultimate beam loss accuracy of 250 nA. A new beam current monitoring system has been developed which utilizes modern digital receiver technology and digital signal processing concepts. The receiver employs a direct-digital down converter integrated circuit, mated with a Jefferson Lab digital signal processor VME card. Adaptive filtering is used to take advantage of current-dependent burn through rates. Benefits of such a system include elimination of DC offsets, generic algorithm development, extensive filter options, and interfaces to UNIX-based control systems
Published in:
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
(Volume:3
)
Date of Conference: 2001
- Page(s):
- 2329 - 2331 vol.3
- Meeting Date :
- 18 Jun 2001-22 Jun 2001
- Print ISBN:
- 0-7803-7191-7
- INSPEC Accession Number:
- 7226823
- Conference Location :
- Chicago, IL
- Digital Object Identifier :
- 10.1109/PAC.2001.987368
- Product Type:
- Conference Publications
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