L- and K-shell emission from X-FEL heated iron

ORAL

Abstract

At the LCLS MEC instrument, a tightly focused X-ray FEL beam is used to isochorically heat thin iron samples. Two compound refractive lenses produce a focus estimated to be 0.5 microns (FWHM). The L-emission from the hot, solid-density samples is measured by RAP(001) crystal and grating spectrometers. In addition, the K-emission is observed by a Ge(111) crystal spectrometer. The L-shell emission from iron, which is initially photoionized by the X-ray FEL, tests recent measurements indicating higher-than-predicted broadening of the L-shell emission lines. Heating at 7 and 9.2 keV photon energies compares different heating mechanisms.

–

Authors

  • Philip Heimann

    SLAC National Accelerator Laboratory

  • Stephanie Hansen

    Sandia Natl Labs, Sandia National Laboratory, Sandia National Laboratories, SNL

  • Guillaume Loisel

    Sandia National Laboratories, New Mexico, USA, Sandia National Laboratories, Sandia National Laboratory

  • J Bailey

    Sandia National Laboratories, Sandia National Laboratory

  • Eliseo Gamboa

    SLAC National Accelerator Laboratory

  • Siegfried Glenzer

    SLAC National Accelerator Laboratory, SLAC - Natl Accelerator Lab, Stanford University

  • R Mancini

    University of Nevada, Reno, University of Nevada, University Nevada Reno

  • Alison Saunders

    University of California, Berkeley

  • Roger Falcone

    University of California, Berkeley

  • Eric Galtier

    SLAC National Accelerator Laboratory, SLAC - Natl Accelerator Lab