Argonne Wakefield Accelerator. The construction of the new AWA electron accelerator beamline has begun. This picture shows part of the components for Phase I of the beamline that were on display during the recent U.S. Department of Energy (DOE) site visit. The copper structure shown in the picture is the photo injector electron gun that will be installed in the beamline at the location of the round, blue structure. The electron energy is expected to reach 25 MeV at the end of Phase I where a number of experiments are being planned before the next phase of the expansion commences.