Preparation for an emittance exchange based bunch compression experiment at Argonne wakefield accelerator facility

Abstract

The emittance exchange (EEX) is a recently developed beam manipulation method providing the longitudinal bunch compression. Since EEX converts the transverse phase space to the longitudinal phase space, it can generate a sub-fs bunch when a small bunch gets appropriate transverse focusing. Argonne Wakefield Accelerator facility (AWA) plans to demonstrate this EEX based sub-fs generation for the high frequency wakefield acceleration. The primary experiment is planned in this summer to explore the minimum achievable bunch length of current configuration. The result will indicate what upgrades we need to experimentally generate a sub-fs bunch. We present progress on the simulation work for this summer experiment and modified EEX beamline generating the sub-fs bunch as an example.