GALOPR, a beam transport program with space charge and bunching

Abstract

Abstract GALOPR is a first-order beam transport code including three-dimensional space-charge forces and the beam bunching process. It deals with usual optical devices (bending magnets, lenses, solenoids, drift spaces, bunchers) and can take into account any special optical device represented by its transfer matrix with space charge (the “Muller” and the “Pabot-Belmont” inflectors were recently introduced as one of these devices). The beam can be continuous, bunched or undergoing a bunching or debunching process. The beam-line parameters can be optimized to fit any elements of the 6 × 6 transfer and/or covariance matrices in order to obtain the maximum transmission efficiency. The results are presented with a complete set of printouts and graphical displays. This code has been used to optimize the 100 kV axial injection beam line at GANIL.