R. A. Snavely

TL;DR: In this paper, the Petawatt laser system emitted directed beams of photons with energies of MeVs with a duration of 05 or 5 psec, on target energies in excess of 100 joules, and focal-spot sizes that vary from 10 to 100 µm, producing peak intensities greater than 1019 watts/cm.

TL;DR: In this article, a series of experiments using the Petawatt laser system at LLNL were conducted to determine the potential of these sources for a variety of applications, including high resolution radiographs through a {rho r > 165 gm/cm².

TL;DR: In this article, the first results of proton focusing and heating experiments performed at the Petawatt power level at the Gekko XII Laser Facility at ILE Osaka Japan Solid density aluminum slabs are placed in the proton focal region at various lengths The degree of focusing is measured via XUV imaging of Planckian emission of the heated zone Simultaneous with the XUV measurement, HISAK gave temporal optical emission images of the focal region Results indicate excellent coupling between the laser-proton conversion and subsequent heating.

TL;DR: In this article, the authors investigated the laser propagation in dense plasmas with relativistic self-focusing and showed that the channel direction coincides with the laser axis, which indicates that laser propagation is dependent on the laser focus position.

TL;DR: In this paper, a Monte-Carlo collision code was proposed to predict a magnetic guiding of a fraction of the fast electron current over long distances and a localized heating of the material along the propagation axis.