Due to their particular properties, the beams of the multi-MeV protons generated during the interaction of ultraintense (I>10(19) W/cm(2)) short pulses with thin solid targets are most suited for use as a particle probe in laser-plasma experiments. The recently developed proton imaging technique employs the beams in a point-projection imaging scheme as a diagnostic tool for the detection of electric fields in laser-plasma interaction experiments. In recent investigations carried out at the Rutherford Appleton Laboratory (RAL, UK), a wide range of laser-plasma interaction conditions of relevance for inertial confinement fusion (ICF)/fast ignition has been explored. Among the results obtained will be discussed: the electric field distribution in laser-produced long-scale plasmas of ICF interest; the measurement of highly transient electric fields related to the generation and dynamics of hot electron currents following ultra-intense laser irradiation of targets; the observation in underdense plasmas, after the propagation of ultra-intense laser pulses, of structures identified as the remnants of solitons produced in the wake of the pulse. (C) 2002 American Institute of Physics.
|Autori interni:||PEGORARO, FRANCESCO|
|Autori:||Borghesi M; Campbell DH; Schiavi A; Haines MG; Willi O; MacKinnon AJ; Patel P; Gizzi LA; Galimberti M; Clarke RJ; Pegoraro F; Ruhl H; Bulanov S|
|Titolo:||Electric field detection in laser-plasma interaction experiments via the proton imaging technique RID E-1400-2011|
|Anno del prodotto:||2002|
|Digital Object Identifier (DOI):||10.1063/1.1459457|
|Appare nelle tipologie:||1.1 Articolo in rivista|