An Improved Design for a Super-B Interaction Region

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We present an improved design for a Super-B interaction region. The new design attempts to minimize the bending of the two colliding beams which results from shared magnetic elements near the Interaction Point (IP). The total crossing angle at the IP is increased from 34 mrad to 50 mrad and the distance from the IP to the first quadrupole is increased. Although the two beams still travel through this shared magnet, these changes allow for a new magnetic field design with a septum which gives the magnet two magnetic centers. This greatly reduces the beam bending from this shared quadrupole ... continued below

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3 pages

Creation Information

Sullivan, M.K.; Seeman, J.; Wienands, U.; /SLAC; Bettoni, S.; /CERN et al. July 25, 2008.

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Description

We present an improved design for a Super-B interaction region. The new design attempts to minimize the bending of the two colliding beams which results from shared magnetic elements near the Interaction Point (IP). The total crossing angle at the IP is increased from 34 mrad to 50 mrad and the distance from the IP to the first quadrupole is increased. Although the two beams still travel through this shared magnet, these changes allow for a new magnetic field design with a septum which gives the magnet two magnetic centers. This greatly reduces the beam bending from this shared quadrupole and thereby reduces the radiative bhabha background for the detector as well as any beam emittance growth from the bending. We describe the new design for the interaction region.

Physical Description

3 pages

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  • Journal Name: Conf.Proc.C0806233:wepp042,2008; Conference: EPAC'08, 11th European Particle Accelerator Conference, 23-27 June 2008, Genoa, Italy

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  • Report No.: SLAC-PUB-13318
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 935308
  • Archival Resource Key: ark:/67531/metadc902318

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Office of Scientific & Technical Information Technical Reports

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  • July 25, 2008

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

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  • Dec. 5, 2016, 8:46 p.m.

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Sullivan, M.K.; Seeman, J.; Wienands, U.; /SLAC; Bettoni, S.; /CERN et al. An Improved Design for a Super-B Interaction Region, article, July 25, 2008; United States. (digital.library.unt.edu/ark:/67531/metadc902318/: accessed September 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.