Magnetic pulse compression using a third harmonic RF linearizer

Abstract

A scheme for compressing 4 nC, 55 ps long bunches to 7 ps at 18 MeV uses, in addition to a magnetic chicane, a third harmonic RF section serving the dual functions of (1) removing the nonlinear distortion placed on the bunch by the upstream linac and (2) impressing on the bunch the linear energy slew required for compression in the chicane. The performance improvement expected from using the linearizer is estimated using an heuristic model based on bunching experiments.