Analysis of hard x-ray data from "hot" hohlraums of various geometries at the National Ignition Facility
ORAL
Abstract
A suite of hard x-ray data from “hot,” variously shaped and sized vacuum hohlraum experiments, is analyzed. These hohlraums were driven by 96 beams of the National Ignition Facility (NIF) laser, with laser pulse durations in the range of ~ 2 - 3 ns, and energies of ~ 4 - 6 kJ per beam.
The measurements, in the x-ray range of 20 - 100 keV, produced outlier levels of hard x-ray flux on the NIF.
Fits to the Filter-Fluorescer (FFLEX) data imply a hot electron temperature of 30 - 40 keV. Here we discuss the trends observed in the FFLEX data, and revisit the underlying assumptions of the fits. We also discuss these results in the context of other data, including backscatter and L-shell Au spectroscopic measurements.
The measurements, in the x-ray range of 20 - 100 keV, produced outlier levels of hard x-ray flux on the NIF.
Fits to the Filter-Fluorescer (FFLEX) data imply a hot electron temperature of 30 - 40 keV. Here we discuss the trends observed in the FFLEX data, and revisit the underlying assumptions of the fits. We also discuss these results in the context of other data, including backscatter and L-shell Au spectroscopic measurements.
–
Presenters
-
Natalie Kostinski
Lawrence Livermore Natl Lab
Authors
-
Natalie Kostinski
Lawrence Livermore Natl Lab
-
Mark J May
Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory
-
William A Farmer
Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory
-
Richard L Berger
Lawrence Livermore Natl Lab
-
Marilyn B Schneider
Lawrence Livermore Natl Lab, LLNL
-
Denise E Hinkel
LLNL, Lawrence Livermore National Laboratory, Lawrence Livermore Natl Lab
-
Jean Jensen
Lawrence Livermore National Laboratory
-
Steve Johnson
Lawrence Livermore National Laboratory
-
Elvin R Monzon
LLNL, Lawrence Livermore National Laboratory
-
Shon T Prisbrey
Lawrence Livermore Natl Lab