FIXED FIELD ALTERNATING GRADIENT LATTICE DESIGN WITHOUT OPPOSITE BEND.

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This report presents an attempt of the lattice design with a fixed field alternating gradient (FFAG) magnets without the usual opposite bends. It should allow particle acceleration through a small aperture. An example was made for the muon beam acceleration in an energy range 10-20 GeV with distributed RF cavities. The dispersion function for the central energy of 15 GeV has maximum value of the order of 7 cm. The lattice is composed of a combined function elements and sextupoles. We present the magnet configuration, orbit, chromaticities, tunes, and betatron function dependence on momentum (energies) during acceleration. For the lattice ... continued below

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3 pages

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TRBOJEVIC,D.; BLASKIEWICZ,M.; COURANT,E.D. & GARREN,A. June 2, 2002.

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Description

This report presents an attempt of the lattice design with a fixed field alternating gradient (FFAG) magnets without the usual opposite bends. It should allow particle acceleration through a small aperture. An example was made for the muon beam acceleration in an energy range 10-20 GeV with distributed RF cavities. The dispersion function for the central energy of 15 GeV has maximum value of the order of 7 cm. The lattice is composed of a combined function elements and sextupoles. We present the magnet configuration, orbit, chromaticities, tunes, and betatron function dependence on momentum (energies) during acceleration. For the lattice design we used SYNCH an MAD programs. For these large momentum offsets {delta}p/p = +-33% we found discrepancies between analytical and codes' results. This will be corrected in the new versions of codes (MAD-X). Because of uncertainties of the programs MAD and SYNCH some details of the presented results might not be correct.

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3 pages

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  • PARTICLE ACCELERATOR CONFERENCE 2002, PARIS (FR), 06/02/2002--06/07/2002

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  • Report No.: BNL--69007
  • Grant Number: AC02-98CH10886
  • Office of Scientific & Technical Information Report Number: 798212
  • Archival Resource Key: ark:/67531/metadc734453

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  • June 2, 2002

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  • Oct. 19, 2015, 7:39 p.m.

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  • Nov. 9, 2015, 7:56 p.m.

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TRBOJEVIC,D.; BLASKIEWICZ,M.; COURANT,E.D. & GARREN,A. FIXED FIELD ALTERNATING GRADIENT LATTICE DESIGN WITHOUT OPPOSITE BEND., article, June 2, 2002; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc734453/: accessed September 25, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.