Space Charge induced Trapping: aim of the code benchmarking

The aim of the code benchmarking is to confirm the space charge induced trapping of particles in a bunch during long term storage. Numerical investigation and experiment at the CERN-PS have been performed in 2002-2003 (see references) but no other code has been used to confirm the mechanism and to reproduce the measurements.

In order to make a code benchmarking we use the SIS18 lattice. An external sextupole is added in the linear lattice to create a 3rd order resonance.


  • Modeling of space charge induced resonance loss
    G.Franchetti and I. Hofmann
    Proc. of 20th ICFA Advanced Beam Dynamics Workshop: High Intensity High Brightness Hadron Beams (AIP, New York, 2002), 642, 260 PDF

  • Space charge and octupole driven resonance trapping observed at the CERN proton synchrotron
    G. Franchetti, I. Hofmann, M. Giovannozzi, M. Martini, E. Metral
    Phys. Rev. ST Accel. Beams 6, 124201 (2003) PDF