Author: Abbon, P.
Paper Title Page
TUO2AB02
Halo Matching for High Intensity Linacs and Dedicated Diagnostics  
 
  • N. Chauvin, J. Marroncle, P.A.P. Nghiem
    CEA/DSM/IRFU, France
  • P. Abbon, D. Uriot
    CEA/IRFU, Gif-sur-Yvette, France
 
  Minimizing beam losses is one of the biggest challenge of very high power linac (MW range). In some cases, beam matching concentrating on minimizing emittance growth is not the most appropriate approach; a direct matching of the halo itself is preferable. We propose a method consisting in minimizing the beam extent, using the Particle Swarm Optimization algorithm that is well suitable to nonlinear systems governed by many parameters. In this article, an application of halo matching simulations is given in the case of the IFMIF superconducting linac. Development of dedicated diagnostics for in-situ implementation of this method on linacs are briefly presented. The beam diagnostic types and locations needed for machine tuning with halo matching are detailed.  
slides icon Slides TUO2AB02 [7.922 MB]