Oscillatory behavior of Rydberg-state total cross sections in the collisions ${Ne}^{+}$ -He and ${He}^{+}$ -Ne

1 July 1977

journal article
research article
Published by American Physical Society (APS) in Physical Review A

Vol. 16 (1), 150-156
https://doi.org/10.1103/physreva.16.150

Abstract

The

{Ne}^{+}

-He and

{He}^{+}

-Ne collisions have been studied by means of optical spectrometry in the projectile energy range 10-150 keV. Very similar and regular oscillations in the Rydberg-state total cross sections are found for He I in both collisions and for singlet as well as triplet excitation. These oscillations are well described by the Rosenthal model. The Hei

4 d {}^{1, 3}D

states display two superimposed oscillations for center-ofmass collision energies above 6.4 keV. We interpret this as the opening of a third exit channel, believed to be the He i

4 f {}^{1, 3}F

. No (or very little) structure is found in the Rydberg-state total cross sections for He ii, Ne i, Ne ii, or Ne iii levels.

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Cited by 16 articles

Oscillatory behavior of Rydberg-state total cross sections in the collisionsNe+-He andHe+-Ne

Abstract

Oscillatory behavior of Rydberg-state total cross sections in the collisions ${Ne}^{+}$ -He and ${He}^{+}$ -Ne