Projectile excitation in the collision of Arq+(q=1, 2 and 3) with He and Ne
- 14 February 1982
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 15 (3) , 423-438
- https://doi.org/10.1088/0022-3700/15/3/024
Abstract
Cross sections for radiative emission from Ar II (3p44s 2P), Ar II (3p43d 2D), Ar II (3s3p6 2S), Ar III (3s3p5 1P) and Ar III (3s3p5 3P) projectile states have been measured for Arq+ (q=1, 2 and 3) ions colliding with He and Ne at impact energies between 15 and 400 keV. The experimental results are explained qualitatively by considering the MO correlation diagrams and potential energy state diagrams. It is often found that the cross section for excitation decreases with the increase of the number of intermediate transitions required in order to reach the excited state. When there is a mechanism involving radial coupling leading from initial to final states then the measured emission cross section decreases with energy, whereas mechanisms involving rotational coupling lead to cross sections that increase with increasing energy up to 200 keV or more.Keywords
This publication has 24 references indexed in Scilit:
- Excitation and ionisation resulting from electron capture in Ar6++H2collisions at ion projectile energies of 200-1200 keVJournal of Physics B: Atomic and Molecular Physics, 1980
- Target dependence of excitation resulting from electron capture in collisions of 200 keV Ar6+ions with noble gasesJournal of Physics B: Atomic and Molecular Physics, 1979
- Outer s-subshell vacancy production in collisions of multiply charged neon and argon ions with neon and argonJournal of Physics B: Atomic and Molecular Physics, 1978
- 3s vacancy production in Ar+-Ar and Ar+-He collisionsPhysics Letters A, 1978
- A four-state calculation of charge exchange in He+-Ar collisions using a quasimolecule modelJournal of Physics B: Atomic and Molecular Physics, 1977
- Collisions between rare-gas atoms at low-keV energies. II. Asymmetric collision systems: He-Ne, -Ar, -Kr, -XePhysical Review A, 1975
- Collisions between rare-gas atoms at low keV energies. I. Symmetric systemsPhysical Review A, 1975
- Extension of the Electron-Promotion Model to Asymmetric Atomic CollisionsPhysical Review A, 1972
- Interpretation of-Ar Collisions at 50 KeVPhysical Review Letters, 1965
- Excitation of Ne, Ar, and Kr Induced byandImpact (5-35 keV)Physical Review B, 1963