Scientific Results

On the effect of rear-surface dielectric coatings on laser-driven proton acceleration

Year: 2009

Authors: Betti S., Cecchetti C. A., Foerster E., Gamucci A., Giulietti, A., Giulietti D., Kaempfer T., Koester P., Labate L., Levato T., Luebcke A., Uschmann I., Zamponi F., Gizzi LA.

Autors Affiliation: CNR, IPCF, ILIL, PI-56100 Pisa, Italy; Ist Nazl Fis Nucl, Sez Pisa, I-56100 Pisa, Italy; Univ Jena, Inst Opt & Quantenelekt, D-07743 Jena, Germany; Univ Pisa, Dipartimento Fis, D-12489 Berlin, Germany; Max Born Inst, D-12489 Berlin, Germany; Accademia Navale, Livorno, Italy; Univ Pisa, Dipartimento Ingn Telecomunicaz, I-56100 Pisa, Italy

Abstract: Laser-driven ion acceleration has been experimentally investigated by irradiating, with tightly focused femtosecond laser pulses at 5 x 10(19) W/cm(2), thin metal foils, which have been back-coated with a mu m thick dielectric layer. The observation we report shows the production of MeV proton bunches with an unexpected highly uniform spatial cross section. (C) 2009 American Institute of Physics. [doi: 10.1063/1.3251425]


Volume: 16 (10)      Pages from: 100701  to: 100701

More Information: We acknowledge financial support by the MIUR-FIRB project \”SPARX\” (Sorgente Pulsata Auto-amplificata di Radiazione X), by the MIUR-PRIN-2007 project \”Studio della generazione di elettroni veloci nell\’interazione laser-plasma ad alta intensita\”, by the INFN project PLASMONX, and by the HiPER Project. Access to the IOQ installation was supported by LASERLAB. We also wish to acknowledge the ENEA-GRID parallel computer initiative at the Laboratori Nazionali di Frascati, Italy, for the execution of the numerical code calculations, together with the JETI laser crew and the DFG (Deutsche Forschungsgemeinschaft). The present work is part of the \”High Field Photonics\” CNR Research Unit.
KeyWords: electron-transport; plasma; beams; expansion; targets
DOI: 10.1063/1.3251425

Citations: 11
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