photoionizationVela X-1 is the archetype of high-mass X-ray binaries, composed of a neutron star and a massive B supergiant. The supergiant is a source of a strong radiatively-driven stellar wind. The neutron star sweeps up this wind, and creates a huge amount of X-rays as a result of...
Using the new version of the photoionization code Titan designed for plane-parallel photoionized thick hot media, which is unprecedented from the point of view of line transfer, we have undertaken a systematic study of the influence of different parameters on the He-like and H-like emission of...
The kinetic energy distribution of the emitted photoelectrons (i.e. the number of emitted photoelectrons as a function of their kinetic energy) can be measured using any appropriate electron energy analyser and a photoelectron spectrum can thus be recorded.The process of photoionization can be ...
Recent work on the X-ray spectra of Seyfert galaxies has shown the presence of a reflection component due to the hard X-ray continuum scattering from and causing fluorescence by cold matter. The exact location of the matter in relation to the hard X-ray source is unclear, but the strength...
(Fig.1). The S 2pphotoionization with a soft x-ray pulse, of photon energyhv, leads to a photoelectron with kinetic energyEkin = hv − Ebind. The molecular UV photoexcitation changes the local charge density at the probed atom (Fig.1bbottom), which leads to a specific ESCS....
H. Multiple photoionization of Ne in the K-shell ionization region. Phys. Scr. 45, 253–256 (1992) Article ADS CAS Google Scholar Barty, A. et al. Predicting the coherent X-ray wavefront focal properties at the Linac Coherent Light Source (LCLS) X-ray free electron laser. Opt. ...
Experimental/ Auger electron spectra core levels photoelectron spectroscopy photoionisation valence bands X-ray chemical analysis X-ray photoelectron spectra/ hard X-ray photoelectron spectroscopy high energy resolution electronic structure chemical composition photoionization photoelectrons valence band surface-inter...
X-ray photoelectron diffraction from a free-electron-metal valence band: Evidence for hole-state localization Schlapbach, X-ray photoelectron diffraction from a free-electron-metal valence band: Evidence for hole-state localization, Phys. Rev. Lett. 64, 2683 (... J Osterwalder,T Greber,S Hüf...
Inner-shell absorption of an X-ray photon can—depending on the photon energy and atomic species—also create multiple charges on a molecule due to Auger cascades. However, among the many studies on 3D momentum imaging using X-ray ionization, only a few of them have studied somewhat larger ...
et al. Turning solid aluminium transparent by intense soft X-ray photoionization. Nature Phys. 5, 693–696 (2009). Article ADS Google Scholar Focher, P., Chiarotti, G. L., Bernasconi, M., Tosatti, E. & Parrinello, M. Structural phase transformations via first-principles simulation. ...