THE SNS RING DIPOLE MAGNETIC FIELD QUALITY.

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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 ... continued below

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3 pages

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Wanderer, P.; Jackson, J.; Jain, A.; Lee, Y. Y.; Meng, W.; Papaphilippou, I. et al. June 3, 2002.

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Description

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.

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3 pages

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  • 8TH EUROPEAN PARTICLE ACCELERATOR CONFERENCE, PARIS (FR), 06/03/2002--06/07/2002

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  • Report No.: BNL--69263
  • Grant Number: AC02-98CH10886
  • Office of Scientific & Technical Information Report Number: 798210
  • Archival Resource Key: ark:/67531/metadc741940

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • June 3, 2002

Added to The UNT Digital Library

  • Oct. 19, 2015, 7:39 p.m.

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  • Nov. 7, 2016, 3:46 p.m.

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Wanderer, P.; Jackson, J.; Jain, A.; Lee, Y. Y.; Meng, W.; Papaphilippou, I. et al. THE SNS RING DIPOLE MAGNETIC FIELD QUALITY., article, June 3, 2002; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc741940/: accessed October 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.