نتایج جستجو برای: ray absorption spectroscopy

تعداد نتایج: 546748  

2009
A. Nilsson D. Nordlund I. Waluyo N. Huang H. Ogasawara S. Kaya U. Bergmann L.-Å. Näslund H. Öström Ph. Wernet K. J. Andersson T. Schiros L. G. M. Pettersson

Here we present a review of x-ray absorption spectroscopy and x-ray Raman scattering with the perspective to understand the spectra of water including changes with temperature, mass of the water molecule and presence of monovalent ions. The different detection schemes are discussed and it is concluded that transmission x-ray absorption measurements, using a small area where the thickness is uni...

2016
J. Gauthier J. Geindre P. Monier C. Chenais-Popovics

Resonant photoexcitation of strontium neon-like ions by the radiation of aluminium hydrogen-like ions is studied theoretically and experimentally in laser-created plasmas. X-ray and X W spectroscopy are used as tools to define plasma conditions where photo-pumping is efficient. The design of targets is completed by ablation studies of strontium layers under various experimental conditions. Abso...

Journal: :Japanese Journal of Applied Physics 1993

Journal: :Inorganics (Basel) 2023

The structural determination of ultrasmall clusters remains a challenge due to difficulties in crystallisation. Often the atomically precise undergo change under influence environment. X-ray absorption spectroscopy (XAS) can be an attractive tool study electronic and geometric properties such deposited onto various supports situ conditions. Herein, [Au6(dppp)4](NO3)2, [Au9(PPh3)8](NO3)3, [Au13(...

2014
J. Gaudin C. Fourment B. I. Cho K. Engelhorn E. Galtier M. Harmand P. M. Leguay H. J. Lee B. Nagler M. Nakatsutsumi C. Ozkan M. Störmer S. Toleikis Th Tschentscher P. A. Heimann F. Dorchies

The rapidly growing ultrafast science with X-ray lasers unveils atomic scale processes with unprecedented time resolution bringing the so called "molecular movie" within reach. X-ray absorption spectroscopy is one of the most powerful x-ray techniques providing both local atomic order and electronic structure when coupled with ad-hoc theory. Collecting absorption spectra within few x-ray pulses...

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