A closed-orbit suppression circuit for a Main Ring transversal damper

Journal Article · Wed Jan 01 00:00:00 EST 1997 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.52321· OSTI ID:565356

Ma, H; Steimel, J; Marriner, J; Crisp, J ^[1]

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1. Fermi National Accelerator Laboratory, P.O. Box 500, MS No. 340, Batavia, Illinois 60510 (United States)

The signals of a transversal damper pickup usually have a certain number of common-mode components due to the off-center beam at the location. For the limit in the output power and the required minimum dynamic range of the feedback system, this common-mode component must be suppressed as much as possible. An analog front end is being developed for a transversal damper of the Main Ring at Fermilab (1) for this purpose. The front end features a balanced feedforward circuit and a possible single-ended negative feedback loop. Properly set, the time constant of the feedforward circuit ensures that the slowly changing closed-orbit component will be adaptively canceled, while the betatron oscillation components will survive in the output. {copyright} {ital 1997 American Institute of Physics.}

• OSTI ID: 565356
• Report Number(s): CONF-9605173-; ISSN 0094-243X; TRN: 98:002417
• Journal Information: AIP Conference Proceedings, Vol. 390, Issue 1; Conference: 7. workshop on beam instrumentation, Argonne, IL (United States), 6-9 May 1996; Other Information: PBD: Jan 1997
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
BEAM MONITORS
DESIGN
FERMILAB TEVATRON
BEAM MONITORING
SIGNAL CONDITIONING
ELECTRONIC CIRCUITS
FEEDBACK
STABILITY