Zobrazeno 1 - 10
of 11
pro vyhledávání: '"H. D. Dohmann"'
Publikováno v:
Zeitschrift f�r Physik A Atoms and Nuclei. 309:101-105
Ti and Cr ions at specific energies of 3.6 MeV/N and 5.0 MeV/N have been excited by passing them through thinC foils. The emission ofK-x rays andK-Auger electrons have been investigated using a flat crystal spectrometer and an electrostatic cyclindri
Autor:
R. Mann, H. D. Dohmann
Publikováno v:
Zeitschrift f�r Physik A Atoms and Nuclei. 291:15-22
Promptly decaying levels in Li- and Be-like Ar could be identified in the delayed x-ray and electron spectrum in addition to the four known metastable (1s2s)1S0, (1s2s)3S1, (1s2p)3P2, and (1s2s2p)4P5/2 states in He- and Li-like systems. The states ha
Autor:
H. D. Dohmann, H. Pfeng
Publikováno v:
Zeitschrift f�r Physik A: Atoms and Nuclei. 288:29-33
The population of the4P5/2-state in Ar15+-ions by cascading processes was measured. The corrected lifetime is (0.55±0.04) ns and is in very good agreement with the theoretical value of 0.56 ns. At a specific beam energy of 1.4 MeV/u the lifetime of
Publikováno v:
Zeitschrift f�r Physik A: Atoms and Nuclei. 285:171-176
Besides the prompt x-ray emission of Ar-ions, the metastable decay of the heliumlike3 P 2- and the lithiumlike4 P 5/2-levels of highly ionized Ar16+ and Ar15+ atoms has been observed in a foil-excited beam using a flat-crystal spectrometer. Due to th
Autor:
P. Armbruster, H. Beyer, F. Bosch, H. D. Dohmann, C. Kozhuharov, D. Liesen, R. Mann, P. H. Mokler
Publikováno v:
Interdisciplinary Science Reviews. 9:321-325
Publikováno v:
Physical Review Letters. 29:533-536
By means of low-energy cross-section measurements on ${\mathrm{He}}^{3}$-${\mathrm{He}}^{3}$, we derive an interatomic potential which has a minimum 3.4% deeper than that of ${\mathrm{He}}^{4}$-${\mathrm{He}}^{4}$. We demonstrate that the difference
Autor:
H. G. Bennewitz, H. D. Dohmann
Publikováno v:
Zeitschrift f�r Physik. 182:524-527
The attempt has been made by several authors to clear up the discrepancy between van der Waals constants determined from scattering cross sections for thermal energies and theoretical values using measured oscillator strengths.
Autor:
H. D. Dohmann
Publikováno v:
Zeitschrift für Physik A Hadrons and nuclei. 220:229-237
The usefulness of a stepfunction model as a molecular interaction potential for calculation of cross-sections is demonstrated. Certain rules for the approximation of realistic potentials by the model are given.
Publikováno v:
Zeitschrift für Physik A Hadrons and nuclei. 253:435-457
Total relative and absolute cross sections for He4-He4 have been measured between 110 and 1100 m/s velocity of the primary beam at scattering chamber temperatures of 5.0 and 77 K. Our measurements are sensitive to the low energy repulsive and the att
Publikováno v:
Prensa medica argentina. 53(9)