Increasing the Photon Energy for Photonuclear Experiments in MAX-lab by Phase Modulating the SLED Pulse

The nuclear physics facility at MAX-lab requires high energy electrons for photonuclear experiments. These electrons are first accelerated in two LINACs that are fed via a SLED system. Arcing in the waveguide structures is currently the limiting factor of the available electron energy. In this report, the implementation of a phase modulation scheme into the injector system is presented. This makes it possible to increase the power delivered to the LINACs and thereby increasing the energy gain without increasing the risk of arcing. Calculations of the available electron energy at the nuclear physics facility using focal plane detectors and tracking code is also presented.