X-ray – TechConnect Briefs

X-ray Reflectometry of Planar Nanoheterostructures:a New Model-less Approach

Ustinov V.V., Babanov Yu.A., Salamatov Yu.A., Institute of Metal Physics, RU

X-ray reflectometry is a highly sensitive non-destructive method of the electron density profile determination in multilayer nanostructures. To evaluate the density variation with depth from the reflectivity data one uses traditionally the least squares method. [...]

Nano-structuring of isotactic polypropylene in presence of a self-assembling nucleating agent under defined flow conditions

Balzano L., Rastogi S., Peters G., Technical University Eindhoven, NL

Presence of additives in polymers plays an important role in physical and mechanical properties. For an example DMDBS is one of the frequently used additives in polypropylenes. The additive is used to achieve higher transparency [...]

Morphological Implications of the Interphase; Linking Crystalline and Amorphous Regions in Semi-Crystalline Polymers

Rastogi S., Terry A.E., Eindhoven University of Technology, NL

In semi-crystalline polymers, a range of morphologies can be obtained in which a chain may traverse the amorphous region between the crystals or fold back into the crystals leading to adjacent or non-adjacent re-entry, depending [...]

Nano-Diamond compressibility at pressures up to 85 GPa

Pantea C., Zhang J., Qian J., Zhao Y., Migliori A., Grzanka E., Palosz B., Wang Y., Zerda T.W., Liu H., Ding Y., Stephens P.W., Botez C.E., Los Alamos National Laboratory, US

According to the core-shell model nanocrystals consist of a uniform core surrounded by a surface shell. Crystallographic structure of the surface shell is the same as that of the core but interatomic distances in the [...]

Hydrodynamically Driven Self-Assembly of Block Copolymers Studied by On-Line Small Angle X-Ray Scattering

Panine P., European Synchrotron Radiation Facility E.S.R.F., FR

A new technique of controlling the supramolecular structure of block copolymer solutions is presented. It consists in monitoring by small angle x-ray scattering the large-scale structure of soft condensed matter and simultaneously recording its rheological [...]

Development of the Multi-pixel X-ray Microcalorimeters

Kudo H., Nakamura T., Arakawa T., Ohtsuka S., Izumi T., Shoji S., Sato H., Kobayashi H., Mori K., Morita U., Homma T., Osaka T., Mitsuda K., Yamasaki N.Y., Fujimoto R., Iyomoto N., Oshima T., Futamoto K., Takei Y., Ichitsubo T., Fujimori T., Ishisaki Y., Morita U., Ohashi T., Kuroda Y., Onishi M., Otake K., Waseda University, JP

We are developing a multi-pixel x-ray microcalorimeters in order to realize good energy resolution x-ray imaging for future Japanese X-ray astronomy missions. The energy resolutions of 10eV at 6keV and 32x32 pixels of arrayed x-ray [...]