Photoemission studies of yttrium photocathodes by using the visible radiation

J. Scifo , A. Lorusso , E. Chiadroni , P. Cinquegrana , S. Dabagov , M. Danailov , A. Demidovich , M. Ferrario , D. Garzella (1, 2) , A. Giribono , D. Hampai , A. Perrone , M. Trovò

1 LIDYL - Laboratoire Interactions, Dynamiques et Lasers (ex SPAM)
2 SLIC - Serveurs Laser

The present work reports on Yttrium based photocathodes. A Yttrium (Y) thin film is deposited via pulsed laser deposition (PLD) on the copper (Cu) back flange of a radio frequency (rf) gun for photocathode application. Because of a lower work function with respect to Cu, Y photocathodes are particularly appealing for the possibility to illuminate them with visible laser pulses, with the advantage of a higher energy per pulse, paving the way to high repetition rate photoinjectors, driven by conventional laser sources. In addition, working at

Mots clés: Particle-Beam Sources

Domaines: Physique des accélérateurs [physics.acc-ph]

J. Scifo, A. Lorusso, E. Chiadroni, P. Cinquegrana, S. Dabagov, et al.. Photoemission studies of yttrium photocathodes by using the visible radiation. Phys.Rev.Accel.Beams, 2020, 23 (12), pp.123401. ⟨10.1103/PhysRevAccelBeams.23.123401⟩. ⟨hal-03191161⟩