THE SNS RING DIPOLE MAGNETIC FIELD QUALITY.

Conference · Mon Jun 03 00:00:00 EDT 2002

OSTI ID:798210

WANDERER, P; JACKSON, J; JAIN, A; LEE, Y Y; MENG, W; PAPAPHILIPPOU, I; SPATARO, C; TEPIKIAN, S; TSOUPAS, N; WEI, J

The large acceptance and compact size of the Spallation Neutron Source (SNS) ring implies the use of short, large aperture dipole magnets, with significant end field errors. The SNS will contain 32 such dipoles. We report magnetic field measurements of the first 16 magnets. The end field errors have been successfully compensated by the use of iron bumps. For 1.0 GeV protons, the magnets have been shimmed to meet the 0.01% specification for rms variation of the integral field. At 1.3 GeV, the rms variation is 0.036%. The load on the corrector system at 1.3 GeV will be reduced by the use of sorting.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States)
• Sponsoring Organization: DOE/SC (US)
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 798210
• Report Number(s): BNL-69263; R&D Project: 86401; 39KC0200; TRN: US0203962
• Resource Relation: Conference: 8TH EUROPEAN PARTICLE ACCELERATOR CONFERENCE, PARIS (FR), 06/03/2002--06/07/2002; Other Information: PBD: 3 Jun 2002
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCELERATORS
APERTURES
DIPOLES
IRON
MAGNETIC FIELDS
MAGNETS
NEUTRON SOURCES
PROTONS
SORTING
SPALLATION
SPECIFICATIONS