A final-focus magnet for PEP-II

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Description

A compact quadrupole magnet has been designed for the final-focus of the 3GeV {times} 9GeV PEP II B-factory collider being built at SLAC. The magnet system must fit within the particle detector, has no iron, and consists of four nested separately controlled magnets: a two-layer 11.95 T/m quadrupole; a horizontal dipole; a vertical dipole; and a 1.5T solenoid. The 1.1 m long magnet must produce a highly uniform quadrupole field in the 120 mm ID beam pipe. The cryostat is 140 mm ID. (warm), 314 mm OD, and approximately 1.5 m long. The very compact cryogenic suspension system using Ti ... continued below

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4 p.

Creation Information

Taylor, C.E.; Caspi, S. & Saho, N. October 17, 1994.

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  • Taylor, C.E.
  • Caspi, S. Lawrence Berkeley Lab., CA (United States)
  • Saho, N. Mechanical Engineering Development Lab. Hitachi, Ltd., Ibaraki (Japan)

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Description

A compact quadrupole magnet has been designed for the final-focus of the 3GeV {times} 9GeV PEP II B-factory collider being built at SLAC. The magnet system must fit within the particle detector, has no iron, and consists of four nested separately controlled magnets: a two-layer 11.95 T/m quadrupole; a horizontal dipole; a vertical dipole; and a 1.5T solenoid. The 1.1 m long magnet must produce a highly uniform quadrupole field in the 120 mm ID beam pipe. The cryostat is 140 mm ID. (warm), 314 mm OD, and approximately 1.5 m long. The very compact cryogenic suspension system using Ti alloy plates is designed to withstand large forces due to interaction between the field of the detector solenoid and the four nested magnets. Cryogenic services and magnet leads are provided through a single flexible transfer line approximately 4m long.

Physical Description

4 p.

Notes

INIS; OSTI as DE95012372

Source

  • Applied superconductivity conference, Boston, MA (United States), 16-21 Oct 1994

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  • Other: DE95012372
  • Report No.: LBL--35421
  • Report No.: CONF-941013--41;SC-MAG--457
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 64330
  • Archival Resource Key: ark:/67531/metadc689693

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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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Creation Date

  • October 17, 1994

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • April 5, 2016, 10:02 a.m.

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Taylor, C.E.; Caspi, S. & Saho, N. A final-focus magnet for PEP-II, article, October 17, 1994; California. (digital.library.unt.edu/ark:/67531/metadc689693/: accessed October 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.