LBL program of 1 meter long, 50 mm diameter bore, dipoles with fields greater than 8 tesla

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Model dipole superconducting magnets with central fields above 8 tesla are being developed for future multi-TeV colliding beam accelerators. The first three models are 1 meter long, have nominal 50 mm diameter cold bores, and utilize Nb-Ti superconductor operating in He II at 1.8 K. None of the three models had an iron flux-return yoke. The maximum central fields achieved are 8.0, 8.6, and 9.1 tesla - all short-sample performance at 1.8 K for the conductors used. At 4.3 K the maximum central fields are from 1.5 to 2.0 tesla lower. In one design, the superconductor is arranged in four … continued below

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Hassenzahl, W.; Gilbert, W.; Taylor, C. & Meuser, R. August 1, 1983.

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Model dipole superconducting magnets with central fields above 8 tesla are being developed for future multi-TeV colliding beam accelerators. The first three models are 1 meter long, have nominal 50 mm diameter cold bores, and utilize Nb-Ti superconductor operating in He II at 1.8 K. None of the three models had an iron flux-return yoke. The maximum central fields achieved are 8.0, 8.6, and 9.1 tesla - all short-sample performance at 1.8 K for the conductors used. At 4.3 K the maximum central fields are from 1.5 to 2.0 tesla lower. In one design, the superconductor is arranged in four concentric cylindrical layers, sometimes called a four-shell geometry. With higher current density Nb-Ti we expect this design to reach 10 tesla central field and a two layer design to reach 8 tesla. The other design uses 8 flat pancakes with upturned ends. Improved Nb-Ti should also allow this design to reach 10 tesla central field. This geometry is being used for our Nb/sub 3/Sn wind-and-react dipole to be operated in He I at 4.3 K.

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7 pages

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NTIS, PC A02/MF A01.

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  • 12. international conference on high energy accelerators, Batavia, IL, USA, 11 Aug 1983

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  • Other: DE84002902
  • Report No.: LBL-16506
  • Report No.: CONF-830822-42
  • Grant Number: AC03-76SF00098
  • Office of Scientific & Technical Information Report Number: 5431536
  • Archival Resource Key: ark:/67531/metadc1072648

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  • August 1, 1983

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  • Feb. 4, 2018, 10:51 a.m.

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  • May 3, 2019, 6:43 p.m.

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Hassenzahl, W.; Gilbert, W.; Taylor, C. & Meuser, R. LBL program of 1 meter long, 50 mm diameter bore, dipoles with fields greater than 8 tesla, article, August 1, 1983; [Berkeley,] California. (https://digital.library.unt.edu/ark:/67531/metadc1072648/: accessed May 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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