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Facco, A.

Paper Title Page
TU2004 Results on the Beam Commissioning of the Superconducting-RFQ of the New LNL Injector 227
 
  • A. Pisent, G. Bisoffi, D. Carlucci, M. Cavenago, M. Comunian, A. Facco, E. Fagotti, A. Galatà, A. Palmieri, M. Poggi, A. M. Porcellato, P. A. Posocco, C. Roncolato
    INFN/LNL, Legnaro, Padova
  • S. X. Fang, S. Fu
    IHEP Beijing, Beijing
  • X. L. Guan
    CIAE, Beijing
  • S. Vitulli
    CNAO Foundation, Milan
 
  A new injector for the heavy ion superconducting linac ALPI has been built at LNL. This new accelerator, named PIAVE, is designed to accelerate ions with A/Q=<8.5 up to 1.2 MeV/u. The main components are an ECRIS source operating on a high voltage platform, a three harmonic buncher, a superconducting RFQ cryomodule containing two bulk niobium structures and two QWR cryomodules housing 4 cavities each. In the last year the injector has been commissioned, with O, Ar, Ne and Xe beams, and put into operation. The beam performances, and the results of longitudinal and transverse emittance measurements will be shown and compared with simulations. Neon and argon beams have been delivered to the experiments (after acceleration with PIAVE and ALPI) for a total of about 400 hours. It should be noted that this is the first superconducting RFQ in operation; the design opportunities offered by this technology for a wider field of applications will be briefly discussed. The heart of these opportunity is given by the high intervane voltage in a cw RFQ (PIAVE can operate cw with an intervane voltage higher than 250 kV).  
TUP074 Beam Dynamics Simulations of SARAF Accelerator including Error Propagation and Implications for the EURISOL Driver 426
 
  • J. Rodnizki, D. Berkovits, K. Lavie, I. Mardor, A. Shor, Y. Yanai
    Soreq NRC, Yavne
  • K. Dunkel, C. Piel
    ACCEL, Bergisch Gladbach
  • A. Facco
    INFN/LNL, Legnaro, Padova
  • V. Zviagintsev
    TRIUMF, Vancouver
 
  Beam dynamics simulations of the SARAF (Soreq Applied Research Accelerator) superconducting RF linear accelerator have bean performed in order to establish the linear accelerator design. The multi-particle simulation includes 3D realistic electromagnetic field distributions, space charge forces and fabrication, misalignment and operation errors. A 4 mA deuteron beam is accelerated up to 40 MeV with a moderated rms emittance growth and a high real-estate acceleration gradient of 2 MeV/m. An envelope of 40,000 macro-particles is kept under a radius of 11 mm, well below the beam pipe bore radius. The accelerator design for SARAF is proposed as an injector for the EURISOL driver accelerator. The basic Accel 176 MHz β0=0.09 and β0=0.15 HWR lattice was extended to 90 MeV based on the LNL 352 MHz β0=0.31 HWR. The matching between both lattices ensures smooth transition and the possibility to extend the accelerator to the required EURISOL ion energy.