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.
Papers
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Journal ArticleDOI
Effects of the electron energy distribution function on modeled x-ray spectra.
TL;DR: It is shown that most collisional rates are fairly insensitive to the functional form and the characteristic (central or average) energy of the electron distribution function as long as the characteristic energy is larger than the threshold energy for the collisional process.
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Fast-electron-relaxation measurement for laser-solid interaction at relativistic laser intensities
H. Chen,Ronnie Shepherd,Hyun-Kyung Chung,Andreas Kemp,Stephanie Hansen,Scott Wilks,Yuan Ping,Klaus Widmann,K. B. Fournier,Gilliss Dyer,A. Y. Faenov,T. A. Pikuz,Peter Beiersdorfer +12 more
TL;DR: It is found that the laser coupling to hot electrons increases as the laser intensity becomes relativistic, and that the thermalization of fast electrons occurs over time scales on the order of 10 ps at all laser intensities.
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Assessing Stagnation Conditions and Identifying Trends in Magnetized Liner Inertial Fusion
Matthew R. Gomez,Stephen A. Slutz,Patrick Knapp,Kelly Hahn,M. R. Weis,Eric Harding,Matthias Geissel,J. R. Fein,Michael E. Glinsky,Stephanie Hansen,A. J. Harvey-Thompson,Christopher Jennings,Ian C. Smith,Daniel Woodbury,D. J. Ampleford,Thomas James Awe,Gordon A. Chandler,M. H. Hess,Derek C. Lamppa,Clayton E. Myers,Carlos L. Ruiz,Adam B Sefkow,Jens Schwarz,David Yager-Elorriaga,Brent Manley Jones,John L. Porter,Kyle Peterson,Ryan D. McBride,Gregory Rochau,Daniel Sinars +29 more
TL;DR: In this paper, simple methodologies for estimating the laser energy coupled to the fuel and determining the stagnation pressure and mix are presented, which represent the first step in experimental demonstration of stagnation performance scaling with input parameters in MagLIF.
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Nonlinear increase of X-ray intensities from thin foils irradiated with a 200 TW femtosecond laser
A. Ya. Faenov,A. Ya. Faenov,James Colgan,Stephanie Hansen,Alexei Zhidkov,Tatiana Pikuz,Tatiana Pikuz,Mamiko Nishiuchi,S. A. Pikuz,S. A. Pikuz,I. Yu. Skobelev,I. Yu. Skobelev,Joseph Abdallah,Hironao Sakaki,Akito Sagisaka,Alexander S. Pirozhkov,Koichi Ogura,Yuji Fukuda,M. Kanasaki,Noboru Hasegawa,Masaharu Nishikino,Masaki Kando,Yukinobu Watanabe,Tetsuya Kawachi,S. Masuda,Tomonao Hosokai,Ryosuke Kodama,Kotaro Kondo +27 more
TL;DR: Femtosecond laser-produced plasmas can produce and probe exotic material states with high densities and multiple inner-shell electron excitations even for higher Z elements and provide unique ultra-bright X-ray sources, according to the theoretical limit of the radiation power.
Journal ArticleDOI
Diagnosing and mitigating laser preheat induced mix in MagLIF
A. J. Harvey-Thompson,M. R. Weis,Eric Harding,Matthias Geissel,D. J. Ampleford,Gordon A. Chandler,J. R. Fein,Michael E. Glinsky,M. R. Gomez,Kelly Hahn,Stephanie Hansen,Christopher Jennings,Patrick Knapp,R. R. Paguio,L. Perea,Kyle Peterson,John L. Porter,Patrick K. Rambo,G. K. Robertson,Gregory Rochau,Daniel Ruiz,Jens Schwarz,Jonathon Shores,Daniel Sinars,S. A. Slutz,G. E. Smith,Ian C. Smith,C. S. Speas,K. Whittemore +28 more
TL;DR: In this paper, a series of magnetized liner inertial fusion (MagLIF) experiments have been conducted in order to investigate the mix introduced from various target surfaces during the laser preheat stage.