31 citations · 51 across the 5 of their papers we have counts for
8 papers · 1 filter
Hanle effect for lifetime determinations in the soft X-ray regime
Moto Togawa, Jan Richter, Chintan Shah +16
By exciting a series of transitions in helium-like nitrogen ions with linearly polarized mono…
Measurement of differential collisional excitation cross sections for the K emission of He-like oxygen
Filipe Grilo, Chintan Shah, José Marques +3
We measure the energy-differential cross sections for collisional excitation of the soft X-ray electric-dipole K () emission from He-like oxygen (O VII), using an electro…
Laboratory Benchmark of Dielectronic Recombination Satellites of Fe XVII
Gabriel J. Grell, Maurice A. Leutenegger, Pedro Amaro +2
We calculated cross sections for the dielectronic recombination (DR) satellite lines of Fe XVII and benchmarked our predictions with experimental cross sections of Fe XVII resonanc…
Analytical evaluation of atomic form factors: application to Rayleigh scattering
L. Safari, J. P. Santos, P. Amaro +2
Atomic form factors are widely used for the characterization of targets and specimens, from crystallography to biology. By using recent mathematical results, here we derive an anal…
Spin effects probed by Rayleigh X-ray scattering off hydrogenic ions
Laleh Safari, Jose Paulo Santos, Pedro Amaro +1
We study the polarization characteristics of x-ray photons scattered by hydrogenic atoms, based on the Dirac equation and second-order perturbation theory. The relativistic states…
Angular and polarization analysis for two-photon decay of 2s hyperfine states of hydrogenlike Uranium
Laleh Safari, Pedro Amaro, Jose Paulo Santos +1
The amplitude of two-photon transitions between hyperfine states in hydrogenlike ions is derived based on relativistic Dirac equation and second order perturbation theory. We study…