Interference effects in K vacancy transfer of hydrogenlike S ions colliding with Ar
- 14 June 1984
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 17 (11) , 2319-2338
- https://doi.org/10.1088/0022-3700/17/11/024
Abstract
The impact-parameter-dependent K-shell to K-shell vacancy transfer probability has been investigated for 4.7, 7.9, 16, 32 and 90 MeV S15+-Ar collisions by measuring S and Ar K X-ray particle coincidences. With low-energy H-like S beams (obtained by poststripping S at 108 MeV and decelerating with the Heidelberg RF linac), oscillating Ar K vacancy probabilities as a function of impact parameter were measured. This structure can be interpreted as constructive and destructive interference of the transfer amplitudes on incoming and outgoing parts of the trajectory. Thus measurement of the height as well as the phase of the coupling amplitude allows for a very sensitive test of different coupling models. The interference maxima and minima could be related to values of the phase integral over the 2 p sigma -1 s sigma energy difference from which information about this energy difference could be obtained.Keywords
This publication has 37 references indexed in Scilit:
- Numerical treatment of the time-dependent Schrodinger equation in rotating coordinatesJournal of Physics B: Atomic and Molecular Physics, 1982
- Close-coupling calculations for inelastic processes in intermediate energy ion-atom collisionsJournal of Physics B: Atomic and Molecular Physics, 1982
- Impact parameter dependence of electron production in S-Ar collisionsJournal of Physics B: Atomic and Molecular Physics, 1982
- A position sensitive parallel plate avalanche detector for heavy-ion X-ray coincidence measurementsNuclear Instruments and Methods, 1977
- The excitation of inner shells in slow atomic collisionsReports on Progress in Physics, 1976
- Inner-shell excitation in heteronuclear collisions. II. Differential and total cross sections for K-shell excitationJournal of Physics B: Atomic and Molecular Physics, 1975
- A critique of Zwaan-Stueckelberg phase integral techniquesAdvances in Physics, 1971
- Electronic Eigenenergies of the Hydrogen Molecular IonPublished by Elsevier ,1968
- Analysis of theon He CollisionPhysical Review B, 1963
- Electron capture in slow collisionsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1958