AWA has performed fundamental study of field emission using the Argonne Cathode Test-stand (ACT), including emission evolution during rf conditioning, emission dependence on global parameters, emitter location, thin film emission, etc. A novel ultrananocrystalline diamond (UNCD) cathode has also been benchmarked in the real gun environment at AWA.
A preliminary study on magnetized beams has been conducted at AWA with one of our collaborators. Additional studies will investigate flat beam generation.
The work on laser shaping is on-going and has proceeded primarily in conjunction with the Emittance Exchange research program.
The Cs2Te photocathode used in the drive gun is produced in-house. A number of research activities/studies have been or are being conducted using these cathodes, including thermal emission, dark current, Quantum efficiency (QE), lifetime, and work function (CPD) measurements.