Intense beam transport experiments in a multi-bend system at the University of Maryland Electron Ring

Abstract We report on the results of beam transport experiments at the University of Maryland Electron Ring (UMER) over a distance of approximately 4 m . The experiments involve a 10 keV , 25– 100 mA , 100 ns electron beam in a lattice consisting of one short solenoid, 24 printed-circuit magnetic quadrupole lenses, and a number of bending and steering dipole magnets. The diagnostics include capacitive beam-position monitors, phosphor screens, slit-wire emittance meters and others. We discuss the conditions required for matching the space-charge-dominated beam into the UMER lattice, as well as emittance measurements and initial studies of longitudinal dynamics in the ring.