Injection and FEL lasing with front end open at ELETTRA

In view of the construction of the new full-energy injector at ELETTRA, radiation dose measurements have been performed to study the scenario of beam losses in top-up regime and to explore potential conditions of radiation hazard for personnel. Measurements of gamma and neutron radiation fields have been carried out in the experimental hall varying the injection efficiency while a beamline front-end was open. In this context, FEL lasing experiments were performed while in injection mode. The collected data as well as future developments are presented and discussed.