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Article
Open AccessSimultaneous bright- and dark-field X-ray microscopy at X-ray free electron lasers
The structures, strain fields, and defect distributions in solid materials underlie the mechanical and physical properties across numerous applications. Many modern microstructural microscopy tools characteriz...
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Article
Open AccessX-ray free electron laser heating of water and gold at high static pressure
Probing of reactive materials such as H2O ices and fluids at the high pressures and temperatures of planetary interiors is limited by unwanted chemical reactions and confinement failure. Faster experiments can mi...
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Article
Development of a Fast Sample-exchange System for Fixed Target Single-shot Imaging at PAL-XFEL
This paper describes the development of a fast exchange system to exchange thin membrane containing samples for single-shot experiments using micron focusing X-ray pulses at Pohang Accelerator Laboratory X-ray...
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Article
Open AccessDirect observation of picosecond melting and disintegration of metallic nanoparticles
Despite more than a century of study, the fundamental mechanisms behind solid melting remain elusive at the nanoscale. Ultrafast phenomena in materials irradiated by intense femtosecond laser pulses have reviv...
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Article
Open AccessCoherence and pulse duration characterization of the PAL-XFEL in the hard X-ray regime
We characterize the spatial and temporal coherence properties of hard X-ray pulses from the Pohang Accelerator Laboratory X-ray Free Electron Laser (PAL-XFEL, Pohang, Korea). The measurement of the single-shot...
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Article
Open AccessSingle-shot 3D coherent diffractive imaging of core-shell nanoparticles with elemental specificity
We report 3D coherent diffractive imaging (CDI) of Au/Pd core-shell nanoparticles with 6.1 nm spatial resolution with elemental specificity. We measured single-shot diffraction patterns of the nanoparticles us...
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Article
Open AccessCoherent soft X-ray diffraction imaging of coliphage PR772 at the Linac coherent light source
Single-particle diffraction from X-ray Free Electron Lasers offers the potential for molecular structure determination without the need for crystallization. In an effort to further develop the technique, we pr...
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Article
Open AccessVisualization of a Mammalian Mitochondrion by Coherent X-ray Diffractive Imaging
We report a three dimensional (3D) quantitative visualization of a mammalian mitochondrion by coherent x-ray diffractive imaging (CXDI) using synchrotron radiation. The internal structures of a mitochondrion f...
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Article
Open AccessCoherent diffraction of single Rice Dwarf virus particles using hard X-rays at the Linac Coherent Light Source
Single particle diffractive imaging data from Rice Dwarf Virus (RDV) were recorded using the Coherent X-ray Imaging (CXI) instrument at the Linac Coherent Light Source (LCLS). RDV was chosen as it is a well-ch...
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Article
Single-shot three-dimensional structure determination of nanocrystals with femtosecond X-ray free-electron laser pulses
Conventional three-dimensional (3D) structure determination methods require either multiple measurements at different sample orientations or a collection of serial sections through a sample. Here we report the...
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Article
Macromolecular structures probed by combining single-shot free-electron laser diffraction with synchrotron coherent X-ray imaging
Nanostructures formed from biological macromolecular complexes utilizing the self-assembly properties of smaller building blocks such as DNA and RNA hold promise for many applications, including sensing and dr...