Permanent magnets for beamlines and the recycler ring at Fermilab

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Fermilab has nearly completed an upgrade to its accelerator complex which is called the Fermilab Main Injector @�MI). In addition to the FM1 ring itself, which is built of standard electromagnets, there are additional components. Two of these components, a beamline used for transporting 8 GeV protons from the existing Booster to the new FM1 ring, and a new storage ring for antiprotons, are made using permanent magnets. The storage ring has been named the Recycler because its function is to store leftover p-bars from the previous Tevatron Collider cycle after they have been decelerated to 8 GeV. Both the ... continued below

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724 Kilobytes

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Glass, Henry D. October 1998.

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Description

Fermilab has nearly completed an upgrade to its accelerator complex which is called the Fermilab Main Injector @�MI). In addition to the FM1 ring itself, which is built of standard electromagnets, there are additional components. Two of these components, a beamline used for transporting 8 GeV protons from the existing Booster to the new FM1 ring, and a new storage ring for antiprotons, are made using permanent magnets. The storage ring has been named the Recycler because its function is to store leftover p-bars from the previous Tevatron Collider cycle after they have been decelerated to 8 GeV. Both the Recycler and the 8 GeV transfer line use magnets of similar technology. The magnetic material is strontium ferrite, chosen for reasons of economy and high H,. The temperature dependence of the ferrite is compensated by a Ni(30%)Fe(70%) alloy operating near its Curie temperature. Field quality is provided by steel pole pieces and custom shims. The Recycler Ring requires about 360 gradient magnets, 110 quadrupole magnets, and small numbers of Lambertson and special magnets. Nearly all of the magnets have been built. We present details of magnet design, manufacturing, and testing.

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724 Kilobytes

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  • 17th International Conference on High Energy Accelerators, Sept. 7-12, 1998, Dubna, Russia

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  • Other: DE00002010
  • Report No.: FERMILAB-Conf-98/267
  • Grant Number: NONE
  • Office of Scientific & Technical Information Report Number: 2010
  • Archival Resource Key: ark:/67531/metadc669587

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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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  • October 1998

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  • June 29, 2015, 9:42 p.m.

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  • April 18, 2016, 3:16 p.m.

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Glass, Henry D. Permanent magnets for beamlines and the recycler ring at Fermilab, article, October 1998; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc669587/: accessed December 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.