Tune-stabilized linear-field FFAG for carbon therapy

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A hybrid design for a Fixed-Field Alternating-Gradient (FFAG) accelerator has been invented which uses edge and alternating-gradient focusing principles applied in a specific configuration to a combined-function magnet to stabilize tunes through an acceleration cycle which extends over a factor of 2-6 in momentum. Using normal conducting magnets, the final, extracted energy from this machine attains 400 MeV/nucleon and thus supports a carbon ion beam in the energy range of interest for cancer therapy. Competing machines for this application include superconducting cyclotrons[1], synchrotrons[2], and, more recently, scaling FFAGs. The machine proposed here has the high average current advantage of the ... continued below

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3 pages

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Johnstone, C.; /Fermilab; Koscielniak, S. & /TRIUMF July 1, 2006.

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A hybrid design for a Fixed-Field Alternating-Gradient (FFAG) accelerator has been invented which uses edge and alternating-gradient focusing principles applied in a specific configuration to a combined-function magnet to stabilize tunes through an acceleration cycle which extends over a factor of 2-6 in momentum. Using normal conducting magnets, the final, extracted energy from this machine attains 400 MeV/nucleon and thus supports a carbon ion beam in the energy range of interest for cancer therapy. Competing machines for this application include superconducting cyclotrons[1], synchrotrons[2], and, more recently, scaling FFAGs. The machine proposed here has the high average current advantage of the cyclotron with smaller radial aperture requirements that are more typical of the synchrotron; and as such represents a desirable innovation for therapy machines.

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3 pages

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  • Report No.: FERMILAB-CONF-06-188-AD
  • Grant Number: AC02-07CH11359
  • Office of Scientific & Technical Information Report Number: 899705
  • Archival Resource Key: ark:/67531/metadc883390

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Office of Scientific & Technical Information Technical Reports

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  • July 1, 2006

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  • Sept. 22, 2016, 2:13 a.m.

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  • Dec. 7, 2016, 11:23 p.m.

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Johnstone, C.; /Fermilab; Koscielniak, S. & /TRIUMF. Tune-stabilized linear-field FFAG for carbon therapy, article, July 1, 2006; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc883390/: accessed October 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.