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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.
Aufsatz
Values for the electron screening in muonic atoms for all Z
(1975)
The electron screening correction in the X-ray transitions in muonic atoms is calculated within a relativistic SCF Hartree-Fock procedure for many transitions and all Z.
Aufsatz
Chemical and physical properties of superheavy elements
(1976)
A knowledge of the physical and chemical properties of superheavy elements is
expected to be of great value for the detection of these elements, owing to the
need for chemical separation in their isolation and identification. The methods
for predicting their electronic structures, expected trends in their chemical and
physical properties and the results of such predictions for the individual superheavy
elements are reviewed. The periodic table is extended up to element 172.