NDLI: Measurements of Field Decay and Snapback Effect on Tevatron Dipole and Quadrupole Magnets

Content Provider	IEEE Xplore Digital Library
Author	Velev, G.V. Ambrosio, G. Annala, G. Bauer, P. Carcagno, R. DiMarco, J. Glass, H. Hanft, R. Kephart, R. Lamm, M. Martens, M. Schlabach, P. Sylvester, C. Tartaglia, M. Tompkins, J.
Copyright Year	2005
Description	Author affiliation: FNAL, Batavia, IL 60510, USA, velev@fnal.gov (Velev, G.V.)
Abstract	Since the beginning of 2002 an intensive measurement program has been performed at the Fermilab Magnet Test Facility (MTF) to understand dynamic effects in Tevatron magnets. Based on the results of this program a new correction algorithm was proposed to compensate for the decay of the sextupole field during the dwell at injection and for the subsequent field "snapback" during the first few seconds of the energy ramp. Beam studies showed that the new correction algorithm works better than the original one, and improves the Tevatron efficiency by at least 3%. The beam studies also indicated insufficient correction during the first 6s of the injection plateau where an unexpected discrepancy of 0.15 sextupole units of extra drift was observed. This paper reports on the most recent measurements of the Tevatron dipoles field at the beginning of the injection plateau. Results on the field decay and snapback in the Tevatron quadrupoles are also presented.
Starting Page	2098
Ending Page	2100
File Size	355732
Page Count	3
File Format	PDF
ISBN	0780388593
DOI	10.1109/PAC.2005.1591022
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-05-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic field measurement Proposals Performance evaluation Magnetic variables measurement Testing Glass Test facilities Persistent currents Superconducting magnets Error correction
Content Type	Text
Resource Type	Article

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Measurements of the Persistent Current Decay and Snapback Effect in Tevatron Dipole Magnets

Measurements of field decay and snapback effect on Tevatron dipole magnets

MEASUREMENTS OF FIELD DECAY AND SNAPBACK EFFECT ON TEVATRON DIPOLE AND QUADRUPOLE MAGNETS *

Measurements of field decay and snapback effect on Tevatron dipole magnets

Measurements of Field Decay and Snapback Effect on Tevatron Dipole and Quadrupole Magnets

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