CERN Accelerating science

Article
Title	Restoring the Skew Quadrupole Moment in Tevatron Dipoles
Author(s)	Harding, David J ; Bauer, Pierre ; Blowers, James N ; Di Marco, Joseph ; Glass, Henry ; Hanft, Ray ; John, Carson ; Robotham, William ; Tartaglia, M ; Tompkins, John ; Velev, Gueorgui
Affiliation	(Fermilab, Batavia, Illinois)
Publication	2005
In:	21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.3244
Subject category	Accelerators and Storage Rings
Abstract	In early 2003 it was realized that mechanical changes in the Tevatron dipoles had led to a deterioration of the magnetic field quality that was hindering operation of the accelerator. After extensive study, a remediation program was started in late 2003 which will continue through 2005. The mechanical and magnetic effects are discussed. The readjustment process and experience are reported, along with other observations on aging magnets.