The paper describes a new concept of visible pump/X-ray probe/slow detector experiments that could be performed at thirdgeneration synchrotron light sources. We propose a technique that would allow time resolution up to femtosecond capabilities to be recovered from a long (100 ps) X-ray probe pulse. The visible pump pulse must be as short as the desired time resolution. The principle of operati...

This article intends to give an overview of the capabilities of photoelectron spectroscopy !n determining the electronic structure of bulk solids, thin films, and surfaces. Particular :mphasis is placed on the use of synchrotron radiation as a tunable, polarized, and wellzollimated light source. Current trends in the field are higlilighted, and examples from the wthor's recent experience are gi...

We discuss the role of thermal cyclo–synchrotron emission in a magnetically dominated corona above an accretion disk in an active galaxy or a galactic black hole candidate. The dissipation occurs in localized active regions around the central black hole. Cyclo– synchrotron radiation is found to be an important process. In the case of galactic black hole candidates, its emission can dominate the...

This paper reviews the research in nanomaterials conducted in our laboratory in the last decade using conventional and synchrotron radiation techniques. While preparative and conventional characterisation techniques are described, emphasis is placed on the analysis of nanomaterials using synchrotron radiation. Materials of primary interests are metal nanoparticles and semiconductor nanowires an...

In synchrotron radiation there is a paradox whether or not the pitch angle of a radiating charge varies. The conventional wisdom is that the pitch angle does not change during the radiation process. The argument is based on Larmor’s radiation formula, where in a synchrotron case the radiation power is along the instantaneous direction of motion of the charge. Then the momentum loss will also be...

Synchrotron radiation has (partly unique) properties promoting the investigation of solids and interfaces on a broad scale. This can support the development of new materials among them certified reference materials (CRMs). Due to the high intensity and the minute size of the light source the radiation can be filtered (monochromatized) and/or focussed onto the sample. Samples can be scanned at h...

It is generally accepted and broadly recognized that one of the principal techniques for studying protein structures is synchrotron radiation diffraction. There are, however, many other areas in the field of nanobiosciences which increasingly make use of sophisticated synchrotron radiation techniques such as microbeam diffraction. The meeting on Synchrotron Radiation and Nanobiosciences covered...