Initial Analysis of the 4D Transfer Map in the Emma Non-Scaling Fixed Field Alternating Gradient Accelerator

The EMMA non-scaling Fixed Field Alternating Gradient accelerator is a ring consisting of 42 quadrupole pairs [1]. The dipole fields that guide particles around the ring are produced by offsetting the quadrupoles from a reference axis. In the ideal case, first-order 4D transfer maps will describe the progression of particles in transverse phase space. This contribution describes the use of experimental data to calculatethe4DtransfermapforEMMAatseveraldifferent momenta, and makes comparisons with the maps produced through simulation.