FS-PETRA

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2019-06-25
09:30
[PUBDB-2019-02574] Journal Article
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Wavefront sensing at X-ray free-electron lasers
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ddc:550
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2019-06-03
21:21
OpenAccess [PUBDB-2019-02410] Journal Article
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Photoionization and photofragmentation of singly charged positive and negative Sc$_3$N@C$_{80}$ endohedral fullerene ions
Photoprocesses of the endohedral fullerene ions Sc$_3$N@C$_{80}^+$ and Sc$_3$N@C$_{80}^-$ in the gas phase have been investigated in the photon energy ranges 30--50 eV and 280--420 eV. Single and double ionization as well as single ionization accompanied by the release of a C$_2$ dimer were observed as a function of the photon energy for the positive parent ion and double detachment was measured for the negative parent ion. [...]
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ddc:530
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2019-05-17
16:37
[PUBDB-2019-02309] Journal Article
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Multimodal X-ray imaging of grain-level properties and performance in a polycrystalline solar cell
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ddc:550
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2019-05-08
13:20
OpenAccess [PUBDB-2019-02182] Journal Article
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Advanced denoising for X-ray ptychography
Optics express 27(8), 10395 - 10418 () [10.1364/OE.27.010395]  GO
The success of ptychographic imaging experiments strongly depends on achieving high signal-to-noise ratio. This is particularly important in nanoscale imaging experiments when diffraction signals are very weak and the experiments are accompanied by significant parasitic scattering (background), outliers or correlated noise sources [...]
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ddc:530
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2019-04-10
13:40
[PUBDB-2019-01922] Contribution to a book

Spatially resolved materials characterization using synchrotron radiation
Mineral reaction kinetics: Microstructures, textures, chemical and isotopic signatures, Vol. 16 London : Mineralogical Society of Great Britain & Ireland 165-180 () [10.1180/EMU-notes.16.6]  GO
The high brilliance of synchrotron radiation has allowed us to combine microscopy with X-ray analytical techniques such as X-ray fluorescence, absorption spectroscopy, and diffraction. in this way, elemental, chemical and structural information can be obtained locally and with high spatial resolution. [...]

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2019-04-10
13:20
[PUBDB-2019-01919] Journal Article
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Light Source Upgrades at DESY: PETRA IV and FLASH2020+
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ddc:530
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2019-04-03
12:27
OpenAccess [PUBDB-2019-01847] Journal Article
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Direct imaging of ultrafast lattice dynamics
Science advances 5(3), eaau8044 - () [10.1126/sciadv.aau8044]  GO
Under rapid high-temperature, high-pressure loading, lattices exhibit complex elastic-inelastic responses. The dynamics of these responses are challenging to measure experimentally because of high sample density and extremely small relevant spatial and temporal scales [...]
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ddc:500
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2019-03-11
15:31
OpenAccess [PUBDB-2019-01461] Journal Article
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Ptychographic characterization of polymer compound refractive lenses manufactured by additive technology
Optics express 27(6), 8639 - 8650 () [10.1364/OE.27.008639]  GO
The recent success in the development of high-precision printing techniques allows one to manufacture free-standing polymer structures of high quality. Two-photon polymerization lithography is a mask-less technique with down to 100 nm resolution that provides full geometric freedom [...]
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2019-03-04
14:40
OpenAccess [PUBDB-2019-01320] Journal Article
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Nuclear resonant scattering from $^{193}Ir$ as a probe of the electronic and magnetic properties of iridates
The high brilliance of modern synchrotron radiation sources facilitates experiments with high-energy x-rays across a range of disciplines, including the study of the electronic and magnetic correlations using elastic and inelastic scattering techniques. Here we report on Nuclear Resonance Scattering at the 73 keV nuclear level in $^{193}$Ir [...]
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ddc:600
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2019-02-24
10:10
[PUBDB-2019-01225] Contribution to a book

Sub-micrometer Focusing and High-Resolution Imaging with Refractive Lenses and Multilayer Laue Optics
Synchrotron Light Sources and Free-Electron Lasers / Jaeschke, Eberhard (Editor) ; Cham : Springer International Publishing, 2019, Chapter 62-1 ; ISBN: 978-3-319-04507-8 ; doi:10.1007/978-3-319-04507-8 Cham : Springer International Publishing 1-28 () [10.1007/978-3-319-04507-8_62-1]  GO
In this chapter we describe the fundamentals of X-ray optics with a particular emphasis on refractive and diffractive optics for high-resolution X-ray microscopy. To understand the physical limitations of X-ray microscopy and X-ray optics, a wave-optical treatment of the interaction of X-rays with the optical elements is needed. [...]
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