Paper |
Title |
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TUPO008 |
Electron Linac Optimization for Driving Bright Gamma-ray Sources based on Compton Back-scattering |
1461 |
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- L. Serafini, F. Broggi, C. De Martinis, D. Giove
Istituto Nazionale di Fisica Nucleare, Milano, Italy
- D. Alesini, P. Antici, A. Bacci, M. Bellaveglia, R. Boni, E. Chiadroni, G. Di Pirro, A. Esposito, M. Ferrario, A. Gallo, G. Gatti, A. Ghigo, E. Pace, A.R. Rossi, B. Spataro, P. Tomassini, C. Vaccarezza
INFN/LNF, Frascati (Roma), Italy
- A. Cianchi
Università di Roma II Tor Vergata, Roma, Italy
- C. Maroli, V. Petrillo
Universita' degli Studi di Milano, Milano, Italy
- M. Migliorati, A. Mostacci, L. Palumbo
Rome University La Sapienza, Roma, Italy
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We study the optimal lay-out and RF frequency for a room temperature GeV-class Electron Linac aiming at producing electron beams that enhance gamma-ray sources based on Compton back-scattering. These emerging novel sources, generating tunable, mono-chromatic, bright photon beams in the range of 5-20 MeV for nuclear physics as well as nuclear engineering, rely on both, high quality electron beams and J-class high repetition-rate synchronized laser systems in order to achieve the maximum spectral density of the gamma-ray beam (# photons/sec/eV). The best option among the conventionally used RF linac-bands (S, C, X) and possible hybrid schemes will be analyzed and discussed, focusing the study in terms of best performances for the gamma-ray source, its reliability and compactness. We show that the best possible candidates for a Gamma-ray driver are quite similar to those of FEL Linacs.
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THYB01 |
Advanced Beam Manipulation Techniques at SPARC |
2877 |
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- A. Mostacci, D. Alesini, P. Antici, A. Bacci, M. Bellaveglia, R. Boni, M. Castellano, E. Chiadroni, G. Di Pirro, A. Drago, M. Ferrario, A. Gallo, G. Gatti, A. Ghigo, E. Pace, A.R. Rossi, B. Spataro, C. Vaccarezza
INFN/LNF, Frascati (Roma), Italy
- A. Cianchi
Università di Roma II Tor Vergata, Roma, Italy
- B. Marchetti
INFN-Roma II, Roma, Italy
- M. Migliorati
University of Rome "La Sapienza", Rome, Italy
- L. Palumbo
Rome University La Sapienza, Roma, Italy
- V. Petrillo, L. Serafini
Istituto Nazionale di Fisica Nucleare, Milano, Italy
- C. Ronsivalle
ENEA C.R. Frascati, Frascati (Roma), Italy
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SPARC in Frascati is a high brightness photo-injector used to drive Free Electron Laser experiments and explore advanced beam manipulation techniques. The R&D effort made for the optimization of the beam parameters will be presented here, together with the major experimental results achieved. In particular, we will focus on the generation of sub-picosecond, high brightness electron bunch trains via velocity bunching technique (the so called comb beam). Such bunch trains can be used to drive tunable and narrow band THz sources, FELs and plasma wake field accelerators.
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Slides THYB01 [20.772 MB]
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THPC100 |
Full Temporal Reconstruction using an Advanced Longitudinal Diagnostic at the SPARC FEL |
3119 |
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- G. Marcus, J.B. Rosenzweig
UCLA, Los Angeles, California, USA
- M. Artioli, F. Ciocci, L. Giannessi, A. Petralia, M. Quattromini, V. Surrenti
ENEA C.R. Frascati, Frascati (Roma), Italy
- A. Bacci, M. Bellaveglia, E. Chiadroni, G. Di Pirro, M. Ferrario, G. Gatti, A. Mostacci, A.R. Rossi
INFN/LNF, Frascati (Roma), Italy
- A. Cianchi
INFN-Roma II, Roma, Italy
- V. Petrillo
Istituto Nazionale di Fisica Nucleare, Milano, Italy
- J.V. Rau
ISM-CNR, Rome, Italy
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The Production of ultra-short (sub 100 fs) single-spike radiation possessing full longitudinal coherence from a free-electron laser (FEL) has been the subject of intense study. A Frequency-Resolved Optical Gating (FROG) diagnostic has been developed and tested at UCLA, which has the capability of providing a longitudinal reconstruction of these ultra-fast pulses. This paper reports the results of the application of the diagnostic at the SPARC FEL facility.
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