| Paper |
Title |
Page |
| TUPPH012 |
Single spike experiments with the SPARC SASE FEL
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258 |
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- M. Ferrario, M. Boscolo, L. Palumbo, C. Vaccarezza
INFN/LNF, Frascati (Roma)
- G. Andonian, E. Hemsing, G. Marcus, S. Reiche, J. B. Rosenzweig
UCLA, Los Angeles, California
- A. Bacci, I. Boscolo, F. Castelli, S. Cialdi, V. Petrillo, L. Serafini
Istituto Nazionale di Fisica Nucleare, Milano
- L. Giannessi, C. Ronsivalle
ENEA C. R. Frascati, Frascati (Roma)
- M. Serluca
INFN-Roma, Roma
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We describe in this paper a possible experiment with the existing SPARC photoinjector to test the generation of sub-picosecond high brightness electron bunches able to produce single spike radiation pulses at 500 nm with the SPARC self-amplified spontaneous emission free-electron laser (SASE-FEL). The main purpose of the experiment will be the production of short electron bunches as long as few SASE cooperation lengths and to validate scaling laws to foresee operation at shorter wavelength in the future operation with SPARX. We present in this paper start to end simulations of the expected FEL performance and discuss the layout of the machine, including the diagnostics to measure the FEL pulse length and other aspects of FEL performance. The experience gained from this experiment, will help in the configuration of the VUV and X-ray FEL SPARX to obtain FEL pulses below 10 fs.
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| TUPPH018 |
Longitudinal Diagnostic for Single-Spike SASE FEL Operation
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274 |
| |
- G. Marcus, G. Andonian, A. Fukasawa, S. Reiche, J. B. Rosenzweig
UCLA, Los Angeles, California
- M. Ferrario, L. Palumbo
INFN/LNF, Frascati (Roma)
- L. Giannessi
ENEA C. R. Frascati, Frascati (Roma)
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The possibility of ultra-short beam, very low charge, short wavelength FELs at SPARC has been recently investigated. This paper explores the development of a longitudinal diagnostic that will provide the capability to characterize the short wavelength radiation based on the Frequency Resolved Optical Gating (FROG) technique. The paper includes studies of pulses simulated for the SPARC case using GENESIS and reconstructed using the FROG algorithm as well as proposed experimental layouts for the device.
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