We report on the recent activity at SPARC, which has successfully been operated both SASE and seeded mode. Full SASE has been achieved by combining the velocity bunching compression technique, to increase the peak current, with an undulator tapering, to compensate the chirp in the longitudinal phase space[1]. The seeded mode operation has been accomplished, both as a single amplifier and as a single stage cascade doubling the frequency of the input seed at 400nm. We report on the main results obtained in both the configurations.

FEL experiments at sparc: Operation in seeded and chirped mode / Giannessi, L.; Petralia, A.; Dattoli, G.; Ciocci, F.; Del Franco, M.; Quattromini, M.; Ronsivalle, C.; Sabia, E.; Spassovsky, I.; Surrenti, V.; Filippetto, D.; Di Pirro, G.; Gatti, G.; Bellaveglia, M.; Alesini, D.; Castellano, M.; Chiadroni, E.; Cultrera, L.; Ferrario, M.; Ficcadenti, L.; Gallo, A.; Ghigo, A.; Pace, E.; Spataro, B.; Vaccarezza, C.; Bacci, A.; Petrillo, V.; Rossi, A. R.; Serafini, L.; Serluca, M.; Moreno, M.; Poletto, L.; Frassetto, F.; Rau, J. V.; Rossi Albertini, V.; Cianchi, A.; Mostacci, A.; Migliorati, M.; Palumbo, L.; Marcus, G.; Musumeci, P.; Rosenzweig, J.; Spampinati, S.; Labat, M.; Briquez, F.; Couprie, M. E.; Carré, B.; Bougeard, M.; Garzella, D.; Lambert, G.; Vicario, C.. - (2010), pp. 4-11. ((Intervento presentato al convegno 32nd International Free Electron Laser Conference, FEL 2010 tenutosi a Malmo City nel 23 August 2010 through 27 August 2010.

FEL experiments at sparc: Operation in seeded and chirped mode

Dattoli G.;Ciocci F.;Del Franco M.;Filippetto D.;Gatti G.;Bellaveglia M.;Alesini D.;Chiadroni E.;Ferrario M.;Ficcadenti L.;Gallo A.;Spataro B.;Vaccarezza C.;Petrillo V.;Moreno M.;Rossi Albertini V.;Cianchi A.;Mostacci A.;Migliorati M.;Palumbo L.;Rosenzweig J.;
2010

Abstract

We report on the recent activity at SPARC, which has successfully been operated both SASE and seeded mode. Full SASE has been achieved by combining the velocity bunching compression technique, to increase the peak current, with an undulator tapering, to compensate the chirp in the longitudinal phase space[1]. The seeded mode operation has been accomplished, both as a single amplifier and as a single stage cascade doubling the frequency of the input seed at 400nm. We report on the main results obtained in both the configurations.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11573/354854
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