Influence of high energy electron irradiation on the network structure of gelatin hydrogels as investigated by small-angle X-ray scattering (SAXS)

2017 ◽  
Vol 19 (19) ◽  
pp. 12064-12074 ◽  
Author(s):  
Emilia I. Wisotzki ◽  
Paolo Tempesti ◽  
Emiliano Fratini ◽  
Stefan G. Mayr
Keyword(s):  
Electron Irradiation ◽  
Network Structure ◽  
Small Angle ◽  
High Energy ◽  
Energy Electron ◽  
High Energy Electron ◽  
X Ray ◽  
X Ray Scattering ◽  
Structural Differences ◽  
Ray Scattering

Small-angle X-ray scattering revealed ranging structural differences in physically entangled and irradiation-crosslinked gelatin hydrogels.

High energy electron and X-ray scattering from atoms using Monte Carlo methods

1996 ◽  
Vol 388 ◽  
pp. 7-17 ◽  
Author(s):  
S.A. Alexander ◽  
R.L. Coldwell ◽  
Ruth E. Hoffmeyer ◽  
Ajit J. Thakkar
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Methods ◽  
High Energy ◽  
Energy Electron ◽  
High Energy Electron ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

High-energy electron and X-ray scattering from H2 using Monte Carlo techniques

1995 ◽  
Vol 56 (S29) ◽  
pp. 627-630 ◽  
Author(s):  
S. A. Alexander ◽  
R. L. Coldwell ◽  
Ruth E. Hoffmeyer ◽  
Ajit J. Thakkar
Keyword(s):  
Monte Carlo ◽  
High Energy ◽  
Energy Electron ◽  
High Energy Electron ◽  
X Ray ◽  
Monte Carlo Techniques ◽  
X Ray Scattering ◽  
Ray Scattering

Mirror to measure small angle x-ray scattering signal in high energy density experiments

2020 ◽  
Vol 91 (12) ◽  
pp. 123501
Author(s):  
M. Šmíd ◽  
C. Baehtz ◽  
A. Pelka ◽  
A. Laso García ◽  
S. Göde ◽  
...  
Keyword(s):  
Energy Density ◽  
Small Angle ◽  
High Energy ◽  
High Energy Density ◽  
X Ray ◽  
X Ray Scattering ◽  
Scattering Signal ◽  
Ray Scattering

A multi-length-scale USAXS/SAXS facility: 10–50 keV small-angle X-ray scattering instrument

2013 ◽  
Vol 46 (5) ◽  
pp. 1508-1512 ◽  
Author(s):  
Byron Freelon ◽  
Kamlesh Suthar ◽  
Jan Ilavsky
Keyword(s):  
Small Angle ◽  
Soft Matter ◽  
High Energy ◽  
X Rays ◽  
X Ray ◽  
X Ray Scattering ◽  
Wide Range ◽  
And Performance ◽  
New Facility ◽  
Ray Scattering

Coupling small-angle X-ray scattering (SAXS) and ultra-small-angle X-ray scattering (USAXS) provides a powerful system of techniques for determining the structural organization of nanostructured materials that exhibit a wide range of characteristic length scales. A new facility that combines high-energy (HE) SAXS and USAXS has been developed at the Advanced Photon Source (APS). The application of X-rays across a range of energies, from 10 to 50 keV, offers opportunities to probe structural behavior at the nano- and microscale. An X-ray setup that can characterize both soft matter or hard matter and high-Zsamples in the solid or solution forms is described. Recent upgrades to the Sector 15ID beamline allow an extension of the X-ray energy range and improved beam intensity. The function and performance of the dedicated USAXS/HE-SAXS ChemMatCARS-APS facility is described.

Instrumental developments for anomalous small-angle X-ray scattering from soft matter systems

2010 ◽  
Vol 43 (6) ◽  
pp. 1479-1487 ◽  
Author(s):  
Michael Sztucki ◽  
Emanuela Di Cola ◽  
Theyencheri Narayanan
Keyword(s):  
Small Angle ◽  
Soft Matter ◽  
High Energy ◽  
Detection Sensitivity ◽  
High Energy Resolution ◽  
Anomalous Scattering ◽  
X Ray ◽  
X Ray Scattering ◽  
Counter Ions ◽  
Ray Scattering

An optimized instrument for anomalous small-angle X-ray scattering from charged soft matter is described. The experimental setup takes special care for single-photon detection sensitivity, high energy resolution of the monochromator,in situcalibration of intensity and energy, and the avoidance of radiation damage. Measured intensities are normalized to an absolute scale online, which can be further decomposed to resonant and non-resonant contributions. The performance of the instrument is demonstrated by an example involving cationic surfactant micelles with bromide counter-ions. The counter-ion profile around the micelle is deduced from the analysis of anomalous scattering near theK-absorption edge of bromine. Two different approaches yield similar results for the radial profile of the counter-ions, showing strong condensation of the counter-ions on the micellar surface, in agreement with the inference from electrochemical methods.

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