FS-PETRA

Latest additions:
2018-06-07
13:03
OpenAccess [PUBDB-2018-02216] Journal Article
; ; ; et al
Simultaneous 8.2 keV phase-contrast imaging and 24.6 keV X-ray diffraction from shock-compressed matter at the LCLS
Applied physics letters 112(22), 221907 - () [10.1063/1.5031907]  GO
In this work, we demonstrate simultaneous phase-contrast imaging (PCI) and X-ray diffraction from shock compressed matter at the Matter in Extreme Conditions endstation, at the Linac Coherent Light Source (LCLS). We utilize the chromaticity from compound refractive X-ray lenses to focus the 24.6 keV 3rd order undulator harmonic of the LCLS to a spot size of 5 μm on target to perform X-ray diffraction. [...]
OpenAccess: Download fulltextPDF Download fulltextPDF (PDFA);
ddc:530
Detailed record - Similar records
2018-01-12
10:19
[PUBDB-2018-00592] Journal Article
; ; ; et al
Materials for x-ray refractive lenses minimizing wavefront distortions
MRS bulletin 42(6), 430 - 436 () [10.1557/mrs.2017.117]  GO
Refraction through curved surfaces, reflection from curved mirrors in grazing incidence, and diffraction from Fresnel zone plates are key hard x-ray focusing mechanisms. In this article, we present materials used for refractive x-ray lenses. [...]
Restricted: Download fulltextPDF Download fulltextPDF (PDFA);
ddc:670
Detailed record - Similar records
2017-12-18
10:48
OpenAccess [PUBDB-2017-13610] Journal Article/Contribution to a conference proceedings/Contribution to a book
; ; ; et al
Aberration correction for hard x-ray focusing at the nanoscale
Advances in X-Ray/EUV Optics and Components XII : [Proceedings] - SPIE, 2017. - ISBN 9781510612297 ISBN 9781510612303 - doi:10.1117/12.2274030
Advances in X-Ray/EUV Optics and Components XII, San DiegoSan Diego, USA, 6 Aug 2017 - 10 Aug 20172017-08-062017-08-10
Proceedings of SPIE 10386, 103860A () [10.1117/12.2274030]  GO
We developed a corrective phase plate that enables the correction of residual aberration in reflective, diffractive, and refractive X-ray optics. The principle is demonstrated on a stack of beryllium compound refractive lenses with a numerical aperture of 0.49 10$^{-3}$ at three synchrotron radiation and x-ray free-electron laser facilities, where we corrected spherical aberration of the optical system. [...]
OpenAccess: Download fulltextPDF Download fulltextPDF (PDFA);
ddc:620
Detailed record - Similar records
2017-12-18
10:44
OpenAccess [PUBDB-2017-13609] Journal Article
; ; ; et al
Nanofocusing with aberration-corrected rotationally parabolic refractive X-ray lenses
Wavefront errors of rotationally parabolic refractive X-ray lenses made of beryllium (Be CRLs) have been recovered for various lens sets and X-ray beam configurations. Due to manufacturing via an embossing process, aberrations of individual lenses within the investigated ensemble are very similar [...]
OpenAccess: Download fulltextPDF Download fulltextPDF (PDFA);
ddc:540
Detailed record - Similar records
2017-12-06
13:22
OpenAccess [PUBDB-2017-12786] Journal Article
; ; ; et al
Ptychographic analysis of the photorefractive effect in $\mathrm{LiNbO_{3}}$:Fe
Optics express 25(25), 31640 - 31650 () [10.1364/OE.25.031640]  GO
We present light induced refractive index changes in iron doped lithium niobate detected with a novel microscopy technique called ptychography. This method determines the change of the refractive index together with the intensity distribution of the writing beam from a single scan with a reconstructed spatial resolution of 3 μm and a sensitivity of the refractive index change of 10$^{−5}$. [...]
OpenAccess: Download fulltextPDF Download fulltextPDF (PDFA);
ddc:530
Detailed record - Similar records
2017-11-28
12:47
OpenAccess [PUBDB-2017-12445] Journal Article/Contribution to a conference proceedings/Contribution to a book
; ; ; et al
PtyNAMi: Ptychographic Nano-Analytical Microscope at PETRA III: interferometrically tracking positions for 3D x-ray scanning microscopy using a ball-lens retroreflector
SPIE OPTICAL ENGINEERING + APPLICATIONS | 6-10 AUGUST 2017; X-Ray Nanoimaging: Instruments and Methods III
X-Ray Nanoimaging: Instruments and Methods III, San DiegoSan Diego, United States, 6 Aug 2017 - 10 Aug 20172017-08-062017-08-10
Proceedings of SPIE 10389, 1038901 () [10.1117/12.2273710]  GO
In recent years, ptychography has revolutionized x-ray microscopy in that it is able to overcome the diffraction limit of x-ray optics, pushing the spatial resolution limit down to a few nanometers. However, due to the weak interaction of x rays with matter, the detection of small features inside a sample requires a high coherent fluence on the sample, a high degree of mechanical stability, and a low background signal from the x-ray microscope. [...]
OpenAccess: Download fulltextPDF Download fulltextPDF (PDFA);
ddc:620
Detailed record - Similar records
2017-10-23
16:15
OpenAccess [PUBDB-2017-11500] Journal Article
; ; ; et al
Focal Spot and Wavefront Sensing of an X-Ray Free Electron laser using Ronchi shearing interferometry
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 100 nm, 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. [...]
OpenAccess: Download fulltextPDF Download fulltextPDF (PDFA);
ddc:000
Detailed record - Similar records
2017-08-31
11:03
OpenAccess [PUBDB-2017-10179] Journal Article
; ; ; et al
Imaging at an x-ray absorption edge using free electron laser pulses for interface dynamics in high energy density systems
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 Fe$_2$O$_3$ and SiO$_2$ aerogel foam materials. [...]
OpenAccess: Download fulltextPDF Download fulltextPDF (PDFA);
ddc:530
Detailed record - Similar records
2017-08-26
16:35
OpenAccess [PUBDB-2017-09888] Dissertation / PhD Thesis
; ;
Resonant Hard X-ray Ptychography for High-Sensitivity Imaging with Chemical Contrast
, 125 pp. () [10.3204/PUBDB-2017-09888] = University of Hamburg, Diss., 2017  GO
For the detailed investigation of biological, chemical or physical processes on the nano scale, high-resolution imaging techniques are essential. For this purpose, the coherentimaging technique – X-ray ptychography – has been established in recent years. [...]
OpenAccess: Download fulltextPDF Download fulltextPDF (PDFA);

Detailed record - Similar records
2017-07-25
19:31
[PUBDB-2017-08515] Dissertation / PhD Thesis
; ;
Resonant Hard X-ray Ptychography for High-Sensitivity Imaging with Chemical Contrast
, 124 pp. () = University of Hamburg, Diss., 2017

Detailed record - Similar records