Zhou Xing
SLAC National Accelerator Laboratory
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Publication
Featured researches published by Zhou Xing.
Journal of Synchrotron Radiation | 2015
B. Nagler; Brice Arnold; Gary Bouchard; Richard F. Boyce; Richard M. Boyce; Alice Callen; Marc Campell; Ruben Curiel; E. Galtier; Justin Garofoli; Eduardo Granados; J. B. Hastings; G. Hays; Philip A. Heimann; Richard W. Lee; Despina Milathianaki; Lori Plummer; Andreas Schropp; Alex Wallace; Marc Welch; William E. White; Zhou Xing; Jing Yin; James Young; U. Zastrau; Hae Ja Lee
A description of the Matter in Extreme Conditions instrument at the Linac Coherent Light Source is given. Recent scientific highlights illustrate phase-contrast imaging of shock waves, X-ray Thomson scattering and X-ray diffraction of shocked materials.
Physical Review Letters | 2017
Richard Briggs; M. G. Gorman; A. L. Coleman; R. S. McWilliams; E. E. McBride; David McGonegle; J. S. Wark; L. J. Peacock; Steve Rothman; Simon MacLeod; C. A. Bolme; Arianna Gleason; G. W. Collins; Jon H. Eggert; D. E. Fratanduono; Raymond F. Smith; E. Galtier; Eduardo Granados; Hae Ja Lee; B. Nagler; I. Nam; Zhou Xing; M. I. McMahon
Using x-ray diffraction at the Linac Coherent Light Source x-ray free-electron laser, we have determined simultaneously and self-consistently the phase transitions and equation of state (EOS) of the lightest transition metal, scandium, under shock compression. On compression scandium undergoes a structural phase transition between 32 and 35xa0GPa to the same bcc structure seen at high temperatures at ambient pressures, and then a further transition at 46xa0GPa to the incommensurate host-guest polymorph found above 21xa0GPa in static compression at room temperature. Shock melting of the host-guest phase is observed between 53 and 72xa0GPa with the disappearance of Bragg scattering and the growth of a broad asymmetric diffraction peak from the high-density liquid.
Review of Scientific Instruments | 2016
B. Nagler; Andreas Schropp; E. Galtier; Brice Arnold; Shaughnessy B. Brown; Alan Fry; Arianna Gleason; Eduardo Granados; Akel Hashim; Jerome Hastings; Dirk Samberg; Frank Seiboth; F. Tavella; Zhou Xing; Hae Ja Lee; Christian G. Schroer
We describe the phase-contrast imaging instrument at the Matter in Extreme Conditions (MEC) endstation of the Linac Coherent Light Source. The instrument can image phenomena with a spatial resolution of a few hundreds of nanometers and at the same time reveal the atomic structure through X-ray diffraction, with a temporal resolution better than 100 fs. It was specifically designed for studies relevant to high-energy-density science and can monitor, e.g., shock fronts, phase transitions, or void collapses. This versatile instrument was commissioned last year and is now available to the MEC user community.
Scientific Reports | 2017
B. Nagler; Andrew Aquila; Sébastien Boutet; E. Galtier; Akel Hashim; Mark S. Hunter; Mengning Liang; Anne Sakdinawat; Christian G. Schroer; Andreas Schropp; Matthew Seaberg; Frank Seiboth; Tim Brandt van Driel; Zhou Xing; Yanwei Liu; Hae Ja Lee
The Linac Coherent Light Source (LCLS) is an X-ray source of unmatched brilliance, that is advancing many scientific fields at a rapid pace. The highest peak intensities that are routinely produced at LCLS take place at the Coherent X-ray Imaging (CXI) instrument, which can produce spotsize at the order of 100u2009nm, and such spotsizes and intensities are crucial for experiments ranging from coherent diffractive imaging, non-linear x-ray optics and high field physics, and single molecule imaging. Nevertheless, a full characterisation of this beam has up to now not been performed. In this paper we for the first time characterise this nanofocused beam in both phase and intensity using a Ronchi Shearing Interferometric technique. The method is fast, in-situ, uses a straightforward optimization algoritm, and is insensitive to spatial jitter.
Review of Scientific Instruments | 2017
M. A. Beckwith; S. Jiang; Andreas Schropp; A. Fernandez-Pañella; H. G. Rinderknecht; S. C. Wilks; K. B. Fournier; E. Galtier; Zhou Xing; Eduardo Granados; E. J. Gamboa; S. H. Glenzer; Philip A. Heimann; U. Zastrau; B. I. Cho; Jon H. Eggert; G. W. Collins; Y. Ping
Tuning the energy of an x-ray probe to an absorption line or edge can provide material-specific measurements that are particularly useful for interfaces. Simulated hard x-ray images above the Fe K-edge are presented to examine ion diffusion across an interface between Fe2O3 and SiO2 aerogel foam materials. The simulations demonstrate the feasibility of such a technique for measurements of density scale lengths near the interface with submicron spatial resolution. A proof-of-principle experiment is designed and performed at the Linac coherent light source facility. Preliminary data show the change of the interface after shock compression and heating with simultaneous fluorescence spectra for temperature determination. The results provide the first demonstration of using x-ray imaging at an absorption edge as a diagnostic to detect ultrafast phenomena for interface physics in high-energy-density systems.
Journal of Synchrotron Radiation | 2016
Philip A. Heimann; Michael MacDonald; B. Nagler; Hae Ja Lee; E. Galtier; Brice Arnold; Zhou Xing
A prefocusing compound refractive lens was implemented for the Matter under Extreme Conditions Instrument at the Linac Coherent Light Source. A significant improvement in the beamline transmission was calculated and observed at 5u2005keV.
Review of Scientific Instruments | 2017
Shaughnessy B. Brown; Akel Hashim; Arianna Gleason; E. Galtier; Inhyuk Nam; Zhou Xing; Alan Fry; Andy MacKinnon; B. Nagler; Eduardo Granados; Hae Ja Lee
We measure the shock drive capabilities of a 30 J, nanosecond, 527 nm laser system at the matter in extreme conditions hutch of the Linac Coherent Light Source. Using a velocity interferometer system for any reflector, we ascertain the maximum instantaneous ablation pressure and characterize its dependence on a drive laser spot size, spatial profile, and temporal profile. We also examine the effects of these parameters on shock spatial and temporal uniformity. Our analysis shows the drive laser capable of generating instantaneous ablation pressures exceeding 160 GPa while maintaining a 1D shock profile. We find that slope pulses provide higher instantaneous ablation pressures than plateau pulses. Our results show instantaneous ablation pressures comparable to those measured at the Omega Laser Facility in Rochester, NY under similar optical drive parameters. Finally, we analyze how optical laser ablation pressures are compare with known scaling relations, accounting for variable laser wavelengths.
Bulletin of the American Physical Society | 2017
M. Beckwith; S. Jiang; Y. Zhao; Andreas Schropp; A. Fernandez-Panella; H. G. Rinderknecht; S. C. Wilks; K. B. Fournier; E. Galtier; Zhou Xing; Eduardo Granados; E. J. Gamboa; S. H. Glenzer; Philip A. Heimann; U. Zastrau; B. I. Cho; Jon H. Eggert; G. W. Collins; Y. Ping
Bulletin of the American Physical Society | 2017
Martin Gorman; Richard Briggs; Amy Coleman; Stewart McWilliams; E. E. McBride; David McGonegle; J. S. Wark; Cindy Bolme; Arianna Gleason; G. W. Collins; Jon H. Eggert; D. E. Fratanduono; Raymond F. Smith; E. Galtier; Hae Ja Lee; Eduardo Grandos; B. Nagler; Zhou Xing; M. I. McMahon
Bulletin of the American Physical Society | 2016
Shaughnessy B. Brown; Hae Ja Lee; B. Nagler; E. Galtier; Zhou Xing; Arianna Gleason; Eduardo Granados; Inhhyuk Nam; Frank Seiboth; Andreas Schropp; Andrew Higginbotham; Akel Hashim; Brice Arnold; Alan Fry