J. Johnson

TL;DR: An intense collimated beam of high-energy protons is emitted normal to the rear surface of thin solid targets irradiated at 1 PW power and peak intensity 3x10(20) W cm(-2).

TL;DR: An intense proton beam to achieve fast ignition is proposed, produced by direct laser acceleration and focused onto the pellet from the rear side of an irradiated target and can be integrated into a hohlraum for indirect drive ICF.

TL;DR: The Petawatt laser at LLNL has opened a new regime of laser-matter interactions in which the quiver motion of plasma electrons is fully relativistic with energies extending well above the threshold for nuclear processes as discussed by the authors.

TL;DR: In this article, the authors describe recent experiments in which they have observed electrons accelerated to 100 MeV, photo-nuclear"ssion, positron}electron pair creation, monoenergetic electron jets and intense beams of protons emitted from the back surface of a laser-irradiated target.

TL;DR: In this article, an intense collimated beam of high-energy protons emitted normal to the rear surface of thin, solid targets was shown to have a broad particle energy spectrum with a sharp cut off above 55 MeV.