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Proceedings Paper

FERMI longitudinal diagnostics: results and future challenges
Author(s): Marco Veronese; E. Ferrari; E. Allaria; P. Cinquegrana; L. Froelich; L. Giannessi; G. Penco; M. Predonzani; F. Rossi; P. Sigalotti; M. Ferianis
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Paper Abstract

The seeded FEL FERMI has completed the commissioning of both the FEL lines, and it is now providing the user community with a coherent and tunable UV radiation (from 100 nm to 4 nm) in a number of different configurations. These also include original FEL-pump - FEL-probe schemes with twin-seeded FEL pulses. Among the key systems for the operation of FERMI, there is the femtosecond optical timing system and dedicated longitudinal diagnostics, specifically developed for FERMI. In this paper, after a short review of the FERMI optical timing system and of its routinely achieved performances, we focus on the results obtained from the suite of longitudinal diagnostics (Bunch Arrival Monitor, Electro Optical sampling station and RF deflectors) all operating in single shot and with 10s fs resolution which demonstrate the FERMI achieved performances. The longitudinal diagnostics measurements are compared between these device and other device on shot-to-shot basis, looking for correlations between machine parameters. Finally future challenges in terms of improvement of existing diagnostics, planned installations and possible upgrades are discussed.

Paper Details

Date Published: 12 May 2015
PDF: 8 pages
Proc. SPIE 9512, Advances in X-ray Free-Electron Lasers Instrumentation III, 95120G (12 May 2015); doi: 10.1117/12.2182515
Show Author Affiliations
Marco Veronese, Elettra-Sincrotrone Trieste S.C.p.A. (Italy)
E. Ferrari, Elettra-Sincrotrone Trieste S.C.p.A. (Italy)
Univ. degli Studi di Trieste (Italy)
E. Allaria, Elettra-Sincrotrone Trieste S.C.p.A. (Italy)
P. Cinquegrana, Elettra-Sincrotrone Trieste S.C.p.A. (Italy)
L. Froelich, Elettra-Sincrotrone Trieste S.C.p.A. (Italy)
L. Giannessi, Elettra-Sincrotrone Trieste S.C.p.A. (Italy)
G. Penco, Elettra-Sincrotrone Trieste S.C.p.A. (Italy)
M. Predonzani, Elettra-Sincrotrone Trieste S.C.p.A. (Italy)
F. Rossi, Elettra-Sincrotrone Trieste S.C.p.A. (Italy)
P. Sigalotti, Elettra-Sincrotrone Trieste S.C.p.A. (Italy)
M. Ferianis, Elettra-Sincrotrone Trieste S.C.p.A. (Italy)

Published in SPIE Proceedings Vol. 9512:
Advances in X-ray Free-Electron Lasers Instrumentation III
Sandra G. Biedron, Editor(s)

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