Asymmetry parameters for double photoionization of neon to the 2p-21S state in the threshold region
- 14 October 1993
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics
- Vol. 26 (19) , L653-L657
- https://doi.org/10.1088/0953-4075/26/19/004
Abstract
A coincidence photoelectron spectrometer has been used to measure the asymmetry parameters for double photoionization of neon to the 2p-2 1S state up to 2 eV above threshold. The observations were made for the extreme situation of unequal energy partitioning between the two photoelectrons wherein one electron has near-zero energy and the other carries off all the excess energy. These measurements are in qualitative agreement with the findings of ab initio calculations and show that in this case of extreme unequal energy sharing, electron correlation still plays a dominant role.Keywords
This publication has 18 references indexed in Scilit:
- Threshold photo-double ionization processes in helium studied by a photoelectron/photoion coincidence techniqueJournal of Physics B: Atomic, Molecular and Optical Physics, 1992
- A penetrating field electron-ion coincidence spectrometer for use in photoionization studiesMeasurement Science and Technology, 1992
- Near-threshold single photon double ionization of neon, argon, krypton and xenon observed by electron-electron coincidence spectroscopyJournal of Physics B: Atomic, Molecular and Optical Physics, 1992
- Near-threshold study of the neon photoelectron satellitesJournal of Physics B: Atomic, Molecular and Optical Physics, 1991
- Wannier theory for double photoionization of noble gasesJournal of Physics B: Atomic, Molecular and Optical Physics, 1991
- Photoionization phenomena near the double-ionization threshold of heliumJournal of Physics B: Atomic, Molecular and Optical Physics, 1991
- Test of Wannier threshold laws: Double-photoionization cross section in heliumPhysical Review Letters, 1988
- Angular distribution of slow photoelectrons near the threshold for double escapeJournal of Physics B: Atomic and Molecular Physics, 1987
- A high resolution threshold electron spectrometer for use in photoionisation studiesJournal of Physics E: Scientific Instruments, 1987
- A new technique for threshold excitation spectroscopyJournal of Physics B: Atomic and Molecular Physics, 1974