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Chauvin, N.

Paper Title Page
THPC028 High Energy Beam Transport Line for the IFMIF-EVEDA Accelerator 3041
 
  • C. Oliver, B. Brañas, A. Ibarra, I. Podadera Aliseda
    CIEMAT, Madrid
  • N. Chauvin, A. Mosnier, D. Uriot
    CEA, Gif-sur-Yvette
 
  The IFMIF-EVEDA accelerator will be a 9 MeV, 125 mA cw deuteron accelerator which will verify the validity of the design of the future IFMIF accelerator. A transport line is necessary to handle the high current beam from the DTL exit up to the beam dump. This line must produce the beam expansion to obtain an acceptable power density at the beam dump. Therefore the design of the transport line must consider the geometry and power handling capacity of the beam dump, the space requirements for diagnostics and the restrictions on the maximum length of the line. In addition, a bending magnet is required in order to avoid excessive irradiation of the diagnostics and line elements by neutrons and gammas produced at the beam dump and to perform energy spread measurements. In this contribution, the preliminary design of the high energy beam transport line will be presented. The results of a sensitivity study to the input beam and line elements errors will also be discussed.  
THPC088 Beam Dynamics Simulation of Superconducting HWR Option for the IFMIF Linac 3194
 
  • N. Chauvin, A. Mosnier, P. A.P. Nghiem, D. Uriot
    CEA, Gif-sur-Yvette
 
  One of the requirements of the International Fusion Materials Irradiation Facility (IFMIF) is a 250 mA, 40 MeV cw deuteron beam provided by two 125 mA linacs. In this paper, a design based on superconducting half-wave resonators (HWR) for the 5 to 40 MeV section of the IFMIF driver accelerator is presented. Multi particle beam dynamics simulations have been performed in order to validate the linac design in such a high charge space regime. A Monte Carlo error analysis has been carried out to study the effects of misalignments or field variations. The results of the simulations are presented and the final specifications of the HWR linac are summarized.