Absolute differential cross sections for the scattering of kilo-electron-volt O atoms

Journal Article · Fri Mar 01 04:00:00 EST 1996 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.53.1581· OSTI ID:279492

Smith, G J; Gao, R S; Lindsay, B G; Smith, K A; Stebbings, R F ^[1]

---

1. Department of Physics, Department of Space Physics and Astronomy and Rice Quantum Institute, Rice University, Post Office Box 1892, Houston, Texas 77251 (United States)

This paper reports measurements of absolute differential cross sections for the direct scattering of oxygen atoms by He, Ne, Ar, Kr, Xe, H{sub 2}, N{sub 2}, O{sub 2}, CO, CO{sub 2}, H{sub 2}O, SO{sub 2}, NH{sub 3}, CH{sub 4}, CF{sub 4}, and SF{sub 6} targets. The measured cross sections include contributions from all elastic and inelastic processes that result in a fast neutral oxygen atom product. Cross sections are presented for 0.5- and 1.5-keV projectile energies over the laboratory angular range 0.2{degree}{endash}5{degree}. When compared in the center-of-mass reference frame, these cross sections exhibit a high degree of similarity in both amplitude and angular dependence. The cross sections for N{sub 2}, CO, CO{sub 2}, and H{sub 2}O are inverted using a partial-wave analysis to yield empirical interaction potentials, which can then be used to extrapolate the measurements down to lower energies. Using these potentials, cross sections are evaluated at 0.1 keV. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 279492
• Journal Information: Physical Review A, Journal Name: Physical Review A Journal Issue: 3 Vol. 53; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
AMMONIA
ARGON
ATOM-ATOM COLLISIONS
ATOM-MOLECULE COLLISIONS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON TETRAFLUORIDE
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
EV RANGE 100-1000
HELIUM
HYDROGEN
KEV RANGE
KEV RANGE 01-10
KRYPTON
METHANE
NEON
NITROGEN
OXYGEN
PARTIAL WAVES
SULFUR DIOXIDE
SULFUR FLUORIDES
WATER VAPOR
XENON