Giancarlo Gatti

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An investigation is carried out into how much energy can be harvested from the vibration of a passing train using a mechanical oscillator. The harvested energy could be used, for example, to charge sensors mounted on the railway track for structural health monitoring. The dominant frequencies due to a passing train are determined for a specific train and(More)
The SPARC project consists in a 150 MeV S-band, high-brilliance linac followed by 6 undulators for FEL radiation production at 530 nm. The linac assembly has been recently completed. During year 2006 a first experimental phase aimed at characterizing the beam emittance in the first 2 m drift downstream the RF gun has been carried out. The low level RF(More)
We present the status of the project PLASMONX, recently approved by INFN. This project, based on a collaboration between INFN and CNR-IPCF, aims at a long term upgrade of the SPARC system with the goal to develop at LNF an integrated facility for advanced beam-laser-plasma research in the field of advanced acceleration techniques and ultra-bright X-ray(More)
The SPARC project foresees the realization of a high brightness photo-injector to produce a 150-200 MeV electron beam to drive a SASE-FEL in the visible light. As a first stage of the commissioning a complete characterization of the photoinjector has been accomplished with a detailed study of the emittance compensation process downstream the gun-solenoid(More)
It has recently been shown that by illuminating a photocathode with an ultra-short laser pulse of appropriate transverse profile, a uniform density, ellipsoidally shaped bunch is dynamically formed, which then has linear space-charge fields in all dimensions inside of the bunch. We study here this process, and its marriage to the standard emittance(More)
Laser-plasma acceleration is now established for a variety of applications while secondary sources are being developed and experimental exploration of electrodynamics in the strong field regime in starting. An overview of the field will be given along with a discussion on perspectives for possible future development of high average power, all-optical(More)
The PEGASUS laboratory at the UCLA Physics Department has been recently commissioned as a new advanced photoinjector facility for ultrafast beam research. With a newly installed state-of-the-art Ti:Sa laser driver capable of delivering sub 100 fs UV pulses onto the cathode, the laboratory capabilities have been greatly expanded. The beam charge is low (10(More)
We report on the development of radiation and electron sources based on laser-plasma acceleration for biomedical and nuclear applications, using both the table top TW laser at ILIL and the 220 TW FLAME laser system at LNF. We use the ILIL laser to produce wakefield electrons in a self-focusing dominated regime in a mm scale gas-jet to generate large,(More)
Mg films deposited by pulsed laser ablation on a Cu substrate were tested as photocathodes in a DC diode. They showed features of robustness and a quantum efficiency of 3 10 4 at low accelerating field when illuminated by 266 nm light at normal incidence. A graphite protective layer of about 20 nm thickness deposited by laser ablation just after the Mg(More)
The Inverse Free Electron Laser (IFEL) is capable, in principle, of reaching accelerating gradients of up to 1 GV/m making it a prospective accelerator scheme for linear colliders. The Neptune IFEL at UCLA utilizes a 15 MeV Photoinjector-generated electron beam of 0.5 nC and a CO<sub>2</sub> laser with peak energy of up to 100 J, and will be able to(More)