Laser-accelerated ions from layered targets
Authors: Gizzi LA., Betti S., Foerster E., Giulietti A., Giulietti D., Kaempfer T., Koester P., Labate L., Levato T., Luebcke A., Robinson A.P.L., Uschmann I., Zamponi F.
Autors Affiliation: ILIL, Istituto Nazionale di Ottica, CNR Campus, Via G. Moruzzi, 1 – 56124 Pisa, Italy; INFN, Sezione di Pisa, Largo B. Pontecorvo 3, Pisa, Italy; Insitut für Optik und Quantenelektronik – Friedrich-Schiller-Universität, Max-Wien-Platz 1, 07743 Jena, Germany; Dipartimento di Fisica, Università degli Studi, Pisa, Italy; Central Laser Facility, Rutherford Appleton Laboratory, Chilton, OX11 0QX, UK; Accademia Navale,Livorno,Italy; Dipartimento di Ingegneria delle Telecomunicazioni, Università degli Studi di Pisa, Italy
Abstract: We investigated laser-driven ion acceleration with tightly focused femtosecond laser pulses at an intensity of 5 x 10(19)W/cm(2). Targets consisting of thin metal foils either back-coated with a mu m-thick dielectric layer or uncoated have been used. The observations we report show that proton bunches with energy in the MeV range have been produced. Furthermore, the protons emitted from back-coated targets exhibit a spatial cross-section which is remarkably more uniform and of significantly smaller size if compared with that of the protons emitted from uncoated foils. The experimental results are discussed in terms of the differences between the propagation of the fast electron current inside the back-coated and uncoated targets. (C) 2010 Elsevier B.V. All rights reserved.
Journal/Review: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume: 620 (1) Pages from: 83 to: 87
KeyWords: Ion acceleration; Proton acceleration; High energy bunches; Laser-plasma acceleration; Laser-driven bunchesDOI: 10.1016/j.nima.2010.01.065Citations: 2data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2019-10-13References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here