S
Stephanie Hansen
Researcher at Sandia National Laboratories
Publications - 176
Citations - 5290
Stephanie Hansen is an academic researcher from Sandia National Laboratories. The author has contributed to research in topics: Plasma & Inertial confinement fusion. The author has an hindex of 33, co-authored 165 publications receiving 4295 citations. Previous affiliations of Stephanie Hansen include Lawrence Livermore National Laboratory.
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Journal ArticleDOI
Changes in the electronic structure of highly compressed iron revealed by X-ray fluorescence lines and absorption edges
TL;DR: In this article, high-resolution spectroscopic data from iron impurities in beryllium liners driven by Sandia's Z machine to temperatures near 10eV and electron densities near 2'×'10 24 'cm −3, conditions independently diagnosed from the transmission depth and shape of the iron K-edge.
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Detailed analysis of hollow ions spectra from dense matter pumped by X-ray emission of relativistic laser plasma
Stephanie Hansen,James Colgan,A. Ya. Faenov,Joseph Abdallah,S. A. Pikuz,I. Yu. Skobelev,Erik Wagenaars,N. Booth,O. Culfa,R. J. Dance,G. J. Tallents,R. G. Evans,Ross Gray,T. Kaempfer,Kate Lancaster,Paul McKenna,Andrew Rossall,Kai S. Schulze,I. Uschmann,Alexei Zhidkov,Nigel Woolsey +20 more
TL;DR: In this article, the authors present extended modeling of the x-ray emission spectrum reported by Colgan et al. based on two collisional-radiative codes: the hybrid-structure Spectroscopic Collisional-Radiative Atomic Model (SCRAM) and the mixed-unresolved transition arrays (MUTA) ATOMIC model.
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Benchmark Experiment for Photoionized Plasma Emission from Accretion-Powered X-Ray Sources.
G. Loisel,James E. Bailey,Duane A. Liedahl,Chris Fontes,Timothy R. Kallman,Taisuke Nagayama,Stephanie Hansen,Gregory Rochau,Roberto Mancini,Richard W. Lee +9 more
TL;DR: A highly reproducible benchmark experiment is developed to study spectrum formation from a photoionized silicon plasma in a regime comparable to astrophysical plasmas, demonstrating that the resonant Auger destruction assumption used to interpret black hole accretion spectra is inaccurate.
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Investigation of the 2p_{32}-3d_{52} line emission of Au;{53+}-Au;{69+} for diagnosing high energy density plasmas.
Gregory V. Brown,Stephanie Hansen,Elmar Träbert,Peter Beiersdorfer,Klaus Widmann,H. Chen,Hyun-Kyung Chung,Joel Clementson,M. F. Gu,D. B. Thorn +9 more
TL;DR: In this paper, the L -shell emission of highly charged gold ions were measured under controlled laboratory conditions using the SuperEBIT electron beam ion trap, allowing detailed spectral observations of lines from Fe-like Au53+ through Ne-like AU69+.
Journal ArticleDOI
Minimizing scatter-losses during pre-heat for magneto-inertial fusion targets
Matthias Geissel,A. J. Harvey-Thompson,Thomas James Awe,David E. Bliss,Michael E. Glinsky,Matthew R. Gomez,Eric Harding,Stephanie Hansen,Christopher Jennings,Mark Kimmel,Patrick Knapp,Sean M. Lewis,Kyle Peterson,Marius Schollmeier,Jens Schwarz,Jonathon Shores,Stephen A. Slutz,Daniel Sinars,Ian C. Smith,C. Shane Speas,Roger Alan Vesey,M. R. Weis,John L. Porter +22 more
TL;DR: The size, temporal and spatial shape, and energy content of a laser pulse for the pre-heat phase of magneto-inertial fusion affect the ability to penetrate the window of the laser-entrance-hole and to heat the fuel behind it as discussed by the authors.