Correction of high gradient quadrupole harmonics with magnetic shims

Authors
Sabbi, G DiMarco, J Nobrega, A Ogitsu, T Schlabach, P Tompkins, JC Yadav, S
Citation
G. Sabbi et al., Correction of high gradient quadrupole harmonics with magnetic shims, IEEE APPL S, 10(1), 2000, pp. 123-126
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
ISSN journal
10518223 → ACNP
Volume
10
Issue
1
Year of publication
2000
Pages
123 - 126
Database
ISI
SICI code
1051-8223(200003)10:1<123:COHGQH>2.0.ZU;2-T
Abstract
Superconducting quadrupole magnets with 70 mm aperture and nominal field gr adient of 215 T/m are being developed by the US-LHC Accelerator Project for the Interaction Regions of the Large Hadron Collider. Due to large beam si ze and orbit displacement in the final focusing triplet, these magnets are subject to stringent field quality requirements. For this reason, a correct ion scheme based on magnetic shims was investigated. This paper reports des ign calculations, fabrication issues and tests results involving magnetic s hims.