OTR based measurements for ELI-NP Gamma Beam Source

The Gamma Beam Source (ELI-NP-GBS) machine is an advanced source of up to ≈20 MeV Gamma Rays based on Compton back-scattering, i.e. collision of an intense high power laser beam and a high brightness electron beam with maximum kinetic energy of about 720 MeV. The Linac will provide trains of 32 electron bunches in each RF pulse, separated by 16.1 ns; each bunch has a charge of 250 pC . The goal of my work is to propose a layout for a distributed energy measurement along the ELI-NP-GBS machine: this will be useful during the commissioning stage of the machine in order to verify the correct functionality of the newly design C-Band accelerating structures, due to the fact that there are OTR screens after each accelerating module. Furthermore, I have studied the feasibility of bunch by bunch energy measurement using a gated camera system.