Results 231 to 240 of about 127,912 (263)
Some of the next articles are maybe not open access.
Excitation-autoionization in highly charged sodiumlike ions
Physical Review A, 1991The effects of excitation-autoionization have been studied for nine sodiumlike ions with 26{le}{ital Z}{le}92. Relativistic-distorted-wave methods were used to calculate cross sections for direct electron-impact ionization of these ions. Relativistic-distorted-wave cross sections were computed for electron-impact excitation of {ital n}=2 electrons to ...
, Reed, , Chen, , Moores
openaire +2 more sources
Electronion interactions for trapped highly charged Ge ions
Canadian Journal of Physics, 2006A theoretical simulation of complex K X-ray spectra including those from dielectronic recombination and excitation processes is presented for trapped highly charged germanium ions ( Geq+, q = 2730) interacting with a dense electron beam. We carried out numerical calculations of transition rates, level energies, transition wavelengths, resonance and ...
Machtoub, G. +3 more
openaire +2 more sources
A low energy ion beam line for highly charged ions
Vacuum, 2005Abstract An ion beam line is presented, which is designed to study the interaction of highly charged ions with matter, especially solid surfaces. The highly charged ions are produced in a room temperature electron beam ion trap, the Dresden EBIT [1,2].
Zschornack, G. +6 more
openaire +2 more sources
Highly Charged Ions in Astrophysics
1989High temperatures or intense photon fluxes create highly charged ions in astrophysical plasmas. The atomic properties of these ions determine heating and cooling rates and opacities. The intensities of X-ray and ultraviolet spectral lines provide diagnostics for plasma temperature, density, ionization state and elemental composition.
openaire +1 more source
Charge separation processes of highly charged fullerene ions
The Journal of Chemical Physics, 1998Using high sensitivity two sector field mass spectrometric techniques (in particular MIKE scans) we have studied quantitatively (and systematically) the energetics of the superasymmetric spontaneous decay reactions (involving either C2+ or C4+ loss) of triply, quadruply, quintuply, and sextuply charged carbon clusters ions Cnz+ in the size range from n=
G. Senn, T. D. Märk, P. Scheier
openaire +1 more source
Charge Exchange of Highly Charged Ions at Low Energy
Physica Scripta, 1983A brief review is given of recombination processes of highly charged ions in typical astrophysical plasmas. The physical conditions are examined, under which recombination by charge exchange with neutral hydrogen and helium is the dominant recombination mechanism.
R McCarroll, P Valiron
openaire +1 more source
1983
An ion of high charge and sufficiently high velocity may, in a single collision, remove many electrons from a target atom. Due to the high charge, the ionization occurs already at relatively large impact parameters, and a small recoil energy of few electronvolt is transferred to the target atom. These conditions are favourable 1.
openaire +1 more source
An ion of high charge and sufficiently high velocity may, in a single collision, remove many electrons from a target atom. Due to the high charge, the ionization occurs already at relatively large impact parameters, and a small recoil energy of few electronvolt is transferred to the target atom. These conditions are favourable 1.
openaire +1 more source
Physica Scripta, 2005
The 12th International Conference on the Physics of Highly Charged Ions was held in Vilnius (Lithuania) 6–11 September 2004. The papers presented at this conference are analysed and commented upon. The following thematic topics were discussed at the conference: fundamental aspects of the physics of multiply charged atoms, structure and spectroscopy ...
openaire +1 more source
The 12th International Conference on the Physics of Highly Charged Ions was held in Vilnius (Lithuania) 6–11 September 2004. The papers presented at this conference are analysed and commented upon. The following thematic topics were discussed at the conference: fundamental aspects of the physics of multiply charged atoms, structure and spectroscopy ...
openaire +1 more source
Photorecombination of highly charged uranium ions
Physical Review A, 1995, Pindzola +4 more
openaire +2 more sources
Quantum Electrodynamics of Highly Charged Ions
1999Quantum electrodynamics (QED) provides a relativistic description of highly charged few-electron atomic systems. Despite inherent problems associated with renormalization the predictions of bound-state QED can be tested to very high precision by measurements of the Lamb shift of electron levels in highly charged ions. Dominant corrections to the energy
Günter Plunien, Gerhard Soff
openaire +1 more source

