The concept of a relatively new type of energy sensitive detectors, namely calorimetric low
temperature detectors, which measure the temperature rise of an absorber due to the impact …

We report on the first integration of novel magnetic microcalorimeter detectors (MMCs),
developed within SPARC (Stored Particles Atomic Physics Research Collaboration), into the …

A most general density-matrix formalism is presented to investigate linear polarization of
characteristic lines following electron-impact excitation of atoms or ions with arbitrary …

In electron-electron interactions in electromagnetic systems, retardation in the exchange of a
virtual photon is essentially important as the first-order quantum electrodynamics correction …

The electron-impact excitation from the ground state to the autoionizing level 1 s 2 s 2 2 p
1/2 J= 1 and the subsequent nonradiative Auger decay 1 s 2 s 2 2 p 1/2 J= 1→ 1 s 2 2 s J …

We study the effects of the Breit interaction on angular emission of Auger electrons emitted
from the nonradiative Auger decay 1 s 2 s 2 2 p 1/2 J= 1→ 1 s 2 2 s J f= 1/2 of berylliumlike …

In light of the work of Reed and Chen [Phys. Rev. A 48, 3644 (1993) 10.1103/PhysRevA.
48.3644], electron-impact excitation from the ground state 1 s 2 S 0 1 to the excited energy …

The inner-shell electron-impact excitation from the ground state to the 1 s 2 s 2 2 p 1/2 J f= 1
excited state and the subsequent electric-dipole 1 s 2 s 2 2 p 1/2 J f= 1→ 1 s 2 2 s 2 J i= 0 …

K-shell spectra are widely used for the plasma diagnostics in fusion science and
astrophysics. Here, we report on a theoretical investigation of the relativistic and QED …

In this paper, we present an experimental and theoretical study of excitation processes for
the heaviest stable helium-like ion, that is, He-like uranium occurring in relativistic collisions …