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Proceedings Paper

Resonant small angle x-ray scattering probing ultrashort pulse high-intensity laser-solid interactions (Conference Presentation)
Author(s): Gaus Lennart; Melanie Rödel; Alexander Pelka; Alejandro Laso Garcia; Josefine Metzkes-Ng; Irene Prencipe; Christian Gutt; Bob Nagler; Eric Galtier; Hae Ja Lee; Eric Cunningham; Motoaki Nakatsutsumi; Mikako Makita; Maxence Gauthier; Chandra Curry; Emma E. McBride; Youichi Sakawa; Siegfried Glenzer; Michael Bussmann; Karl Zeil; Uwe Hübner; Ulrich Schramm; Thomas E. Cowan; Thomas Kluge; Hans-Peter Schlenvoigt

Paper Abstract

The development of second-generation short-pulse laser-driven radiation sources requires a mature understanding of the relativistic laser-plasma processes as e.g. plasma oscillations, heating and transport of relativistic electrons as well as the development of plasma instabilities. These dynamic effects occurring on femtosecond and nanometer scales are very difficult to access experimentally. In a first experiment in 2014 at the Matter of Extreme Conditions facility at LCLS we demonstrated that Small Angle X-ray Scattering (SAXS) of femtosecond x-ray free electron laser pulses is able to make these fundamental processes accessible on the relevant time and length scales in direct in-situ pump-probe experiments [Kluge et al., Phys. Rev. X 8, 031068 (2018)]. Here we report on a recent follow-up experiment with significantly higher pump intensity reaching the relativistic intensity domain, improved targetry, XFEL shaping and particle diagnostics. We give an overview of the new capabilities in combining a full suite of particle and radiation diagnostics including ion-, electron-, bremsstrahlung- and K-alpha-spectrometer, proton beam profile imager and SAX scattering. Especially probing at resonant x-ray energies can give new insight into the ultra-fast ionization processes, plasma opacity and equation-of-state in non-equilibrium plasmas. Respresenting the collaborations of the latest two MEC SAXS experiments we will give an overview of the experimental setup and the technical implementation of radiation and particle diagnostics as well as imaging methods. We will exemplify the capabilities on the specific example of probing the correlation of thin layers under high-intensity laser irradiation and its consequences for modelling the heating of buried layers and rear surface expansion.

Paper Details

Date Published: 14 May 2019
Proc. SPIE 11037, Laser Acceleration of Electrons, Protons, and Ions V, 110370F (14 May 2019); doi: 10.1117/12.2520822
Show Author Affiliations
Gaus Lennart, Helmholtz-Zentrum Dresden-Rossendorf e. V. (Germany)
Melanie Rödel, Helmholtz-Zentrum Dresden-Rossendorf e. V. (Germany)
Alexander Pelka, Helmholtz-Zentrum Dresden-Rossendorf e. V. (Germany)
Alejandro Laso Garcia, Helmholtz-Zentrum Dresden-Rossendorf e. V. (Germany)
Josefine Metzkes-Ng, Helmholtz-Zentrum Dresden-Rossendorf e. V. (Germany)
Irene Prencipe, Helmholtz-Zentrum Dresden-Rossendorf e. V. (Germany)
Christian Gutt, Univ. Siegen (Germany)
Bob Nagler, SLAC National Accelerator Lab. (United States)
Eric Galtier, SLAC National Accelerator Lab. (United States)
Hae Ja Lee, SLAC National Accelerator Lab. (United States)
Eric Cunningham, SLAC National Accelerator Lab. (United States)
Motoaki Nakatsutsumi, European XFEL GmbH (Germany)
Mikako Makita, European XFEL GmbH (Germany)
Maxence Gauthier, SLAC National Accelerator Lab. (United States)
Chandra Curry, SLAC National Accelerator Lab. (United States)
Emma E. McBride, SLAC National Accelerator Lab. (United States)
Youichi Sakawa, Osaka Univ. (Japan)
Siegfried Glenzer, SLAC National Accelerator Lab. (United States)
Michael Bussmann, Helmholtz-Zentrum Dresden-Rossendorf e. V. (Germany)
Karl Zeil, Helmholtz-Zentrum Dresden-Rossendorf e. V. (Germany)
Uwe Hübner, Leibniz-Institut für Photonische Technologien e.V. (Germany)
Ulrich Schramm, Helmholtz-Zentrum Dresden-Rossendorf e. V. (Germany)
Thomas E. Cowan, Helmholtz-Zentrum Dresden-Rossendorf e. V. (Germany)
Thomas Kluge, HZDR (Germany)
Hans-Peter Schlenvoigt, Helmholtz-Zentrum Dresden-Rossendorf e. V. (Germany)

Published in SPIE Proceedings Vol. 11037:
Laser Acceleration of Electrons, Protons, and Ions V
Eric Esarey; Carl B. Schroeder; Jörg Schreiber, Editor(s)

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