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F ixed F ield A lternating G radient Accelerators

F ixed F ield A lternating G radient Accelerators. G. Wüstefeld. best inputs from cyclotrons and synchrotrons - dc magnetic fields: reliability - radial ‘compact’ - kHz acceleration: reduced space charge limit (- fixed transverse tunes: beam stability). RACCAM - Project.

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F ixed F ield A lternating G radient Accelerators

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  1. Fixed Field Alternating Gradient Accelerators G. Wüstefeld best inputs from cyclotrons and synchrotrons - dc magnetic fields: reliability - radial ‘compact’ - kHz acceleration: reduced space charge limit (- fixed transverse tunes:beam stability)

  2. RACCAM - Project Protonen therapy FFAG Spiral FFAG Extr. E / MeV 70 - 180 Inj. E / MeV 5.5 - 15 R / m 2.79 – 3.46 I / nA >100 Rep rate > 100 Hz HF / MHz 1.86 – 7.54 -> 1 prototype magnet built For the RACCAM Project (EPAC 2008): J. Fourrier, F. M´eot , J. Pasternak, LPSC, Grenoble, France M. Conjat, J. Mandrillon, P. Mandrillon, AIMA-Development, Nice, France

  3. FFAG-ERIT Energy/Emittance Recovery Internal Target n-production for boron neutron capture therapy Radial FFAG E / MeV 10 <R> / m 2.35 HF / MHz 18.1 HF / kV 230 V-gap hight / mm 350 -> Start of commissioning K.Okabe, Fukui University, Fukui, Japan Y.Mori, Y. Ishi, T. Uesugi, Kyoto University Research Reactor Institute (KURRI), Osaka, Japan

  4. FFAGs AT KURRI Accelerator driven sub-critical reactor (ADSR) FFAG-1 E=1.5 MeV R =0.99m FFAG-2 E=11 MeV R= 1.71m FFAG-3 E=100 MeV R= 5.12m (FFAG-4 E=700 MeV ) Radial FFAG Beam current / nA <1 Beam power / W 0.1 Reactor power / W 10 -> Start of commissioning Y. Ishi, M. Inoue, Y. Kuriyama, Y. Mori, T. Uesugi, Kyoto University Research Reactor Institute (KURRI), Osaka, Japan JB. Lagrange, T. Planche, M. Takashima, E. Yamakawa, Graduate School of Engineering, Kyoto University, Kyoto, Japan H. Imazu, K. Okabe, I. Sakai, Y. Takahoko, Fukui University, Fukui, Japan

  5. EMMA electron model to study Non-scaling FFAGs Non-scaling FFAG E / MeV 10 -20 R / m 16.6 HF / GHz 1.3 Cavities 19 -> Start of commissioning this fall Optics: only quads / no dipoles PAMELA: a non-scaling FFAG for proton (250 MeV) and light ion (400 MeV/u C6+) therapy Thomas Robert Edgecock (STFC/RAL, Chilton, Didcot, Oxon), J. Scott Berg (BNL, Upton, Long Island, New York), Yoel Giboudot (Brunel University, Middlesex), Francois Meot (CEA, Gif-sur-Yvette), Eberhard Keil (CERN, Geneva), James Crisp, Carol Johnstone (Fermilab, Batavia), Jaroslaw Pasternak (Imperial College of Science and Technology, London), Suzanne L. Sheehy, Takeichiro Yokoi (JAI, Oxford), Neil Bliss, Brian Martlew, Christopher White (STFC/DL, Daresbury, Warrington, Cheshire), Carl David Beard, James Clarke, Stephen A. Griffiths, Clive Hill, Steven Jamison, James Jones, Alexander Kalinin, Kiril Marinov, Neil Marks, Peter McIntosh, Bruno Muratori, Joseph Francis Orrett, Yuri Saveliev, Ben Shepherd, Robert Smith, Susan Louise Smith, Stephan Ivanov Tzenov, Alan Wheelhouse (STFC/DL/ASTeC, Daresbury, Warrington, Cheshire), David Kelliher, Shinji Machida (STFC/RAL/ASTeC, Chilton, Didcot, Oxon), Shane Rupert Koscielniak (TRIUMF, Vancouver), Michael Craddock (UBC & TRIUMF, Vancouver, British Columbia)

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