Absolute cross-section measurements for ionization of He Rydberg atoms in collisions with K
- Department of Physics, Wesleyan University, Middletown, Connecticut 06459 (United States)
Absolute cross sections for ionization of 1.5--10.0 keV/amu Rydberg helium atoms in principal quantum states 12{le}{ital n}{le}15 due to collisions with potassium have been measured. The data are compared with the free-electron cross section at equal velocity. Our results for the collisional ionization cross sections ({sigma}{sub {ital i}}) agree both in shape and absolute magnitude with the data available for the total electron-scattering cross sections ({sigma}{sub {ital e}}) and support recent theoretical models for ionization of Rydberg atoms with neutral perturbers.
- OSTI ID:
- 132902
- Journal Information:
- Physical Review A, Journal Name: Physical Review A Journal Issue: 5 Vol. 52; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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