Characterization of x-ray imaging crystal spectrometer for high-resolution spatially-resolved x-ray Thomson scattering measurements in shock-compressed experiments

Abstract

We have proposed, designed and built a dual-channel x-ray imaging crystal spectrometer (XICS) for spectrally-and spatially-resolved x-ray Thomson scattering (XRTS) measurements in the Matter in Extreme Conditions (MEC) end station at Linac Coherent Light Source (LCLS). This spectrometer employs two spherically-bent germanium (Ge) 220 crystals, which are combined to form a large aperture dispersive element with a spectral bandwidth of ~300 eV that includes both the elastic and inelastic x-ray scattering peaks. The apparatus and its characterization are described. A resolving power of ~ 1900 was demonstrated and a spatial resolution

Fifth User Workshop on high-power lasers at the Linac Coherent Light Source

“…Participants discussed the recent experiments that have been performed using high-power lasers at the LCLS-Matter in Extreme Conditions (MEC) endstation. Ten journal articles have been published during the previous year from research at the MEC instrument (Fletcher et al ., 2016; Nagler et al ., 2016; Beckwith et al ., 2017; Briggs et al ., 2017; Gleason et al ., 2017; Kraus et al ., 2017; Lu et al ., 2017; Seiboth et al ., 2017; Sperling et al ., 2017; Witte et al ., 2017), and research performed at MEC has also contributed to several PhD theses. This workshop provided an opportunity for the scientific community to learn about recent accomplishments, as well as to discuss future facility upgrades.…”