Near-threshold electron impact excitation functions of high-n states of Ar, Kr, Xe, H2, N2and CO
- 28 July 1984
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 17 (14) , 2925-2941
- https://doi.org/10.1088/0022-3700/17/14/020
Abstract
Excitation functions of Rydberg states lying within a band of n values that is typically from approximately 16 to 46 have been measured with high energy resolution. All the excitation functions are found to have a sudden threshold onset, the sharpness of which is consistent with the high-n excitation cross sections having finite values at threshold. This behaviour, and also the details of the energy dependences of the excitation functions near to, but above the threshold, are interpreted in terms of the high-n states being formed by the evolution of the collision complex along the Wannier ridge.Keywords
This publication has 25 references indexed in Scilit:
- Correlations of two excited electronsReports on Progress in Physics, 1983
- Laser investigation of odd krypton Rydberg levels using the field ionisation detection methodJournal of Physics B: Atomic and Molecular Physics, 1981
- The effect of long-range electron correlations on the polarisation of atomic line radiation, excited by electron impactJournal of Physics B: Atomic and Molecular Physics, 1980
- Radiative emission from singlet superexcited levels ofPhysical Review A, 1980
- Threshold excitation in H2and D2by electron impact and predissociation of triplet states measured by electron-photon coincidencesJournal of Physics B: Atomic and Molecular Physics, 1979
- A study of resonance structure in helium using metastable excitation by electron impact with high energy resolutionJournal of Physics B: Atomic and Molecular Physics, 1977
- The realisation of high energy resolution using the hemispherical electrostatic energy selector in electron impact spectrometryJournal of Physics E: Scientific Instruments, 1977
- Studies of the threshold electron impact ionization of heliumJournal of Physics B: Atomic and Molecular Physics, 1974
- Excitation of atoms to states of high orbital momentumJournal of Physics B: Atomic and Molecular Physics, 1974
- Molecular Beam Time-of-Flight Measurements for the Study of Metastable and Repulsive Electronic StatesThe Journal of Chemical Physics, 1967