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Aufsatz
Inner shells
(Hanle, Wilhelm (Hrsg.), 1978)
Aufsatz
Auger transitions in Li-like and Be-like ions
(1975)
Measurements of the Auger decay of beam-foil excited Be II and Be I levels are reported along with a proposed assignment of the experimental spectra. The Li I, Be II and Be III (1s 2s^2) ^2 S \rightarrow (1s^2 2s)^2 S Auger transitions as presented in this letter represents the first observation of such states in positive ions with Z \le 5.
Aufsatz
An ab-initio calculation of the Coulomb explosion of N_2 after heavy-ion bombardement
(1978)
Self-consistent-field calculations for the total potential energy of highly ionized N_2 molecules are presented. We compare these calculations to the experimentally observed energy released in the Coulomb explosion of ionized N_2 molecules created after collision with fast heavy ions. The most important electronic states of the fragment ions are determined.
Aufsatz
Nuclear charge radii from X-ray transitions in muonic atoms of carbon, nitrogen and oxygen
(1974)
Energies of muonic X-rays of the K-series of carbon, nitrogen and oxygen have been measured with an accuracy of about 15 eV. Root mean square radii of the nuclear charge distributions were deduced. The results 2.49±0.05 fm for carbon, 2.55 ±0.03 fm for nitrogen and 2.71 ±0.02 fm for oxygen are in good agreement at comparable accuracy with recent electron scattering data.
Aufsatz
Auger spectroscopy of foil-excited beryllium ions
(Kleinpoppen, H. (Hrsg.), 1976)
We have measured prompt and delayed emission spectra of electrons from foilexcited Be, B^+, and Be^2+ ions at 300 keV. On the basis of recently calculated eigenvalues we identified two lines in the prompt Be^+ spectrum as transitions from 2s^22p and 2s2p^2. The delayed Be spectrum indicates that transitions from highly excited quintet states occur. We propose radiationless deexcitation with one excited spectator electron not involved in the transition.
Aufsatz
Atomic and ionic radii of superheavy elements
(1972)
Atomic and ionic radii are presented for the elements E104-E120 and E156-E172. It is shown that a number of effects correlated with the large relativistic contraction of orbitals with low angular momentum leads to smaller atoms for higher atomic numbers. It is expected that Cs is the largest atom in nature.
Aufsatz
Retardation effects in ion-ion collisons [collisions]
(1978)
The modification of the two center screened electronic Coulomb potential due to relativistic kinematical effects is investigated in the Coulomb gauge. Both nuclear and electronic charges were approximated by Gaussian distributions. For ion velocities v/c =0.1 the effect may roughly be approximated by a 0.1% increase in the effective strength for the monopole term of the two center potential. Thus for ion kinetic energies not exceeding a few MeV/nucleon this relativistic contribution induces small effects on the binding ...
Aufsatz
Superheavy elements
(Dunitz, J. D., 1975)
Aufsatz
Interpretation of quasimolecular L X-rays in heavy-ion collisions
(1977)
Using a relativistic selfconsistent correlation diagram a first interpretation of the shape and position of L MO X-rays is given within a quasi-adiabatic model.