Author: Chauvin, N.
Paper Title Page
MOPPC056 The SolMaxP Code 259
  • A. Chancé, N. Chauvin, R.D. Duperrier
    CEA/DSM/IRFU, France
  In modern sciences, use of high performance computing (HPC) has become a necessity to move forward in the modeling of complex systems. For large-scale instruments like accelerators, HPC permits the virtual prototyping of very onerous parts and, thus, helps to reduce development costs. The SolMaxP code (for Solving Maxwell in Plasma) has been developed to allow complex simulations of multi-species plasma coupled with electromagnetic fields, whether the electromagnetic background is or is not self-consistent with the plasma dynamics. This paper presents the main algorithm of the code and gives several examples of applications.  
TUPPC065 High Intensity Beam Analysis for the Superconducting Radio-frequency Linac (SRF-Linac) of the IFMIF-EVEDA Accelerators 1323
  • W. Simeoni
    CEA/IRFU, Gif-sur-Yvette, France
  • N. Chauvin, P.A.P. Nghiem, D. Uriot
    CEA/DSM/IRFU, France
  In this proceeding we analyze space charge effects on the beam dynamics of IFMIF accelerators. The objective is to be able to characterize and understand the crucial issues like halo formation, emittance growth and sudden particle losses in the SRF-Linac. We use the Hofmann stability charts to identify modes of collective space charge density oscillations that are responsible for the transfer and growth of the emittance. With identification of modes we are able to treat the parametric resonance between the modes and the nonlinear motion of an individual ion the amplitude of which is greater than the core radius. The resulting phase space consists of an inner separatrix containing the core and an outer separatrix that becomes the locus near which the halo particles enter and cluster.  
WEPPR019 Catalogue of Losses for the IFMIF Prototype Accelerator 2982
  • P.A.P. Nghiem, N. Chauvin, D. Uriot
    CEA/DSM/IRFU, France
  • M. Comunian
    INFN/LNL, Legnaro (PD), Italy
  • C. Oliver
    CIEMAT, Madrid, Spain
  For machine and personal protection purposes, precise knowledge of beam loss location and power are crucial, especially in a high intensity, high power accelerator like the IFMIF prototype. This paper aims at discussing the protocol of appropriate studies in order to give the catalogue of beam losses in different conditions: nominal, tuning and accidental. Then results of these studies are given.