Siegfried Glenzer

TL;DR: The first measurement of spectrally resolved incoherent x-ray scattering from clusters is presented, enabling measurements of transient temperature, densities, and ionization of ultrafast laser-matter interactions on femtosecond time scales.

TL;DR: In this article, a capsule performance optimization campaign was conducted at the National Ignition Facility to substantially increase the probability of ignition by tuning a variety of ignition capsule surrogates under scaled hohlraum and capsule conditions relevant to the ignition design and shown to meet the required sensitivity and accuracy.

Abstract: We have used gas-filled targets irradiated at the Nova laser to simulate National Ignition Facility (NlF) hohlraum plasmas and to study the dependence of Stimulated Raman (SRS) and Brillouin (SBS) Scattering on beam smoothing at a range of laser intensities (3{omega}, 2 - 4 10{sup 15}Wcm{sup -2}) and plasma conditions. We have demonstrated the effectiveness of polarization smoothing as a potential upgrade to the NIF. Experiments with higher intensities and higher densities characteristic of 350eV hohlraum designs indicate that with appropriate beam smoothing the backscatter from such hohlraums may be tolerable.

TL;DR: The first controlled fusion experiment using laser indirect drive on the National Ignition Facility to produce capsule gain (here 5.8) and reach ignition by nine different formulations of the Lawson criterion was reported in this article .

TL;DR: The methods used to characterize the radial profile and rate of expansion of the shock induced x-ray emission of layered cryogenic deuterium and tritium capsules via x-rays driven ablation are described.