The PEP-II-Factory septum quadrupole magnets

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The PEP-II B-Factory is presently engaged design and fabrication of several unique magnets referred to as septum quadrupoles. This family of magnets is required to contain a low energy beam of positrons (3.1 GeV) and a high energy electron beam (9.0 GeV) in adjacent beam pipes housed within a common magnet. One beam will be focused while the other passes through an almost field free region. To do this, an asymmetric magnet must be designed having a pure, high quality quadrupole field in the magnet aperture and an adjacent low field bypass channel. A current sheet or ``septum`` coil must ... continued below

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10 p.

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Swan, J.M.; Harvey, A.R.; Holmes, R.H.; Kendall, C.M.; Yamamoto, R.M.; Yokota, Ted T. et al. June 2, 1995.

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Description

The PEP-II B-Factory is presently engaged design and fabrication of several unique magnets referred to as septum quadrupoles. This family of magnets is required to contain a low energy beam of positrons (3.1 GeV) and a high energy electron beam (9.0 GeV) in adjacent beam pipes housed within a common magnet. One beam will be focused while the other passes through an almost field free region. To do this, an asymmetric magnet must be designed having a pure, high quality quadrupole field in the magnet aperture and an adjacent low field bypass channel. A current sheet or ``septum`` coil must be placed between these two regions to produce the desired magnetic results. Design of this high current density septum coil presents many challenges since space between the two vacuum beam pipes where the coil must reside is very limited. This paper will describe the overall design of the septum quadrupoles and the solutions employed to achieve the required magnetic performance.

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10 p.

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OSTI as DE96000084

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  • 14. international conference on magnet technology, Tampere (Finland), 11-16 Jun 1995

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  • Other: DE96000084
  • Report No.: UCRL-JC--119082
  • Report No.: CONF-950691--18
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 108201
  • Archival Resource Key: ark:/67531/metadc627386

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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.

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  • June 2, 1995

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  • June 16, 2015, 7:43 a.m.

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  • Feb. 23, 2016, 5:45 p.m.

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Swan, J.M.; Harvey, A.R.; Holmes, R.H.; Kendall, C.M.; Yamamoto, R.M.; Yokota, Ted T. et al. The PEP-II-Factory septum quadrupole magnets, article, June 2, 1995; California. (digital.library.unt.edu/ark:/67531/metadc627386/: accessed November 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.