ABSOLUTE CROSS-SECTION MEASUREMENTS FOR IONIZATION OF HE RYDBERG ATOMS IN COLLISIONS WITH K

Authors
DENG F RENWICK S MARTINEZ H MORGAN TJ
Citation
F. Deng et al., ABSOLUTE CROSS-SECTION MEASUREMENTS FOR IONIZATION OF HE RYDBERG ATOMS IN COLLISIONS WITH K, Physical review. A, 52(5), 1995, pp. 3833-3835
Citations number
15
Categorie Soggetti
Physics
Journal title
Physical review. A → ACNP
ISSN journal
10502947
Volume
52
Issue
5
Year of publication
1995
Pages
3833 - 3835
Database
ISI
SICI code
1050-2947(1995)52:5<3833:ACMFIO>2.0.ZU;2-M
Abstract
Absolute cross sections for ionization of 1.5-10.0 keV/amu Rydberg hel ium atoms in principal quantum states 12 less than or equal to n less than or equal to 15 due to collisions with potassium have been measure d. The data are compared with the free-electron cross section at equal velocity. Our results for the collisional ionization cross sections ( sigma(i)) agree both in shape and absolute magnitude with the data ava ilable for the total electron-scattering cross sections(sigma(e)) and support recent theoretical models for ionization of Rydberg atoms with neutral perturbers.