title: Diagnosing radiative shocks from deuterium and tritium implosions on NIF.
abstract: During the recent ignition tuning campaign at the National Ignition Facility, layered cryogenic deuterium and tritium capsules were imploded via x-ray driven ablation. The hardened gated x-ray imager diagnostic temporally and spatially resolves the x-ray emission from the core of the capsule implosion at energies above ~8 keV. On multiple implosions, ~200-400 ps after peak compression a spherically expanding radiative shock has been observed. This paper describes the methods used to characterize the radial profile and rate of expansion of the shock induced x-ray emission.
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, California 94550, USA. pak5@llnl.gov
authors.forename: A
authors.initials: A
authors.lastname: Pak
authors.forename: L
authors.initials: L
authors.lastname: Divol
authors.forename: S
authors.initials: S
authors.lastname: Weber
authors.forename: T
authors.initials: T
authors.lastname: Döppner
authors.forename: G A
authors.initials: GA
authors.lastname: Kyrala
authors.forename: J
authors.initials: J
authors.lastname: Kilne
authors.forename: N
authors.initials: N
authors.lastname: Izumi
authors.forename: S
authors.initials: S
authors.lastname: Glenn
authors.forename: T
authors.initials: T
authors.lastname: Ma
authors.forename: R P
authors.initials: RP
authors.lastname: Town
authors.forename: D K
authors.initials: DK
authors.lastname: Bradley
authors.forename: S H
authors.initials: SH
authors.lastname: Glenzer