Title :
Observations of Strong Transverse Coupling in the Tevatron
Author :
Syphers, M.J. ; Annala, G. ; Edwards, D.A. ; Gelfand, N. ; Johnstone, J. ; Martens, M.A. ; Sen, T.
Author_Institution :
Fermilab, Batavia, IL 60150, USA
Abstract :
During the beginning of Run II of the Tevatron Collider it became apparent that a large skew quadrupole source, or sources, had developed in the superconducting synchrotron. Efforts to locate the current source of coupling were undertaken, with the eventual discovery that the main magnets had developed a systematic skew quadrupole moment over their lifetime. Over the past year, the magnets have been altered in place in an attempt to restore the systematic skew quadrupole moment to zero. Beam observations and their interpretations are presented, and remedial measures are discussed.
Keywords :
Adders; Circuit optimization; Contracts; Coupling circuits; Extraterrestrial measurements; Pattern recognition; Superconducting magnets; Synchrotrons; Tuned circuits; Turning;
Conference_Titel :
Particle Accelerator Conference, 2005. PAC 2005. Proceedings of the
Print_ISBN :
0-7803-8859-3
DOI :
10.1109/PAC.2005.1590998