The New C Band Gun for the Next Generation RF Photo-Injectors
- Alesini, D.
- Ferrario, M.
- Giribono, A.
- Gizzi, A.
- Piersanti, L.
- Vannozzi, A.
- Castorina, G.
- Cardelli, F.
- Di Raddo, G.
- Faillace, L.
- Lauciani, S.
- Liedl, A.
- Pellegrino, L.
- Vaccarezza, C
- Croia, M.
- Ficcadenti, L.
- Pedrocchi, G.
DOIAbstract
RF photo-injectors are widely used in modern facilities, especially in FEL, as very low-emittance and high-brightness electron sources. Presently, the RF technology mostly used for RF guns is the S band (3 GHz) with typical cathode peak fields of 80-120 MV/m and repetition rates lower than 120 Hz. There are solid reasons to believe that the frequency step-up from S band to C band (6 GHz) can provide a strong improvement of the beam quality due to the potential higher achievable cathode field (>160 MV/m) and higher repetition rate (that can reach the kHz level). In the contest of the European I.FAST project, a new C band gun has been designed and will be realized and tested. It is a 2.5 cell standing wave cavity with a four port mode launche...
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