Author: Brandenburg, S.
Paper Title Page
TUZO02 Detailed Investigation of the 4D Phase-Space of an Ion Beam 30
 
  • H.R. Kremers, J.P.M. Beijers, S. Brandenburg, V. Mironov, S. Saminathan
    KVI, Groningen, The Netherlands
 
  A second order transfer matrix is calculated, which is used in the calculation of a 4D phase-space distribution of a 24.6 keV He1+ beam. The calculated distribution matches a 4D phase-space distribution measured with the KVI pepper pot emittance meter. The pepper pot emittance meter is installed in the image plane of a dipole magnet acting as a charge-state analyser directly downstream the KVI AECR ion source. From the second order transfer matrix simple analytical equations are derived by retaining the terms for angular coefficients. These simple equations describe the main features of the phase-space correlations in the image plane. The equations show also that the subset of the 4D phase-space distribution, selected by one pepper pot aperture, results in multiple beam-lets. Due to this successful matrix modelling we conclude that the 4D phase-space distribution measured is fully determined by the ionoptical properties of the magnet.  
slides icon Slides TUZO02 [6.348 MB]