High resolution x-ray Thomson scattering measurements from cryogenic hydrogen jets using the linac coherent light source

作者：Fletcher L B; Zastrau U; Galtier E; Gamboa E J; Goede S; Schumaker W; Ravasio A; Gauthier M; MacDonald M J; Chen Z; Granados E; Lee H J; Fry A; Kim J B; Roedel C; Mishra R; Pelka A; Kraus D; Barbrel B; Doppner T; Glenzer S H

来源：Review of Scientific Instruments, 2016, 87(11): 11E524.

DOI：10.1063/1.4959792

We present the first spectrally resolved measurements of x-rays scattered from cryogenic hydrogen jets in the single photon counting limit. The 120 Hz capabilities of the LCLS, together with a novel hydrogen jet design [J. B. Kim et al., Rev. Sci. Instrum. (these proceedings)], allow for the ability to record a near background free spectrum. Such high-dynamic-range x-ray scattering measurements enable a platform to study ultra-fast, laser-driven, heating dynamics of hydrogen plasmas. This measurement has been achieved using two highly annealed pyrolytic graphite crystal spectrometers to spectrally resolve 5.5 keV x-rays elastically and inelastically scattered from cryogenic hydrogen and focused on Cornell-SLAC pixel array detectors [S. Herrmann et al., Nucl. Instrum. Methods Phys. Res., Sect. A 718, 550 (2013)]. Published by AIP Publishing.

• 出版日期2016-11