A FEL experiment (ONDINE) without axial magnetic field is being performed at CESTA. The electron beam transport (1,3 MeV - 65 OA) from the field emission diode to the helical wiggler entrance obtained by coils is measured in accordance with our code Electra. The FEL is operated in the super-radiant regime and delivers around 300 kW in the 22-48 GHz band.
"Microwave FEL experiment at CESTA", Proc. SPIE 1929, 17th International Conference on Infrared and Millimeter Waves, 19291V (14 December 1992); doi: 10.1117/12.2298184; https://doi.org/10.1117/12.2298184