The elastic and inelastic scattering of CsI by Ar and Xe

Journal Article · Fri Apr 01 04:00:00 EST 1977 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.434340· OSTI ID:7120283

Greene, E F; Hall, R B; Sondergaard, N A

Further measurements by velocity analysis of differential cross sections for the elastic and inelastic scattering of CsI by Ar and Xe are reported at relative translational energies E in the ranges 4--12 and 6--17 kJ mol/sup -1/, respectively. Measurements without velocity analysis for CsI+Ar extend the range to E=117 kJ mol/sup -1/. These results for in-plane scattering permit estimates for the total cross sections integrated over the scattering angles for energy exchange by specific amounts ..delta..E between the internal energy of CsI and the relative translational energy. Both excitation and deexcitation of CsI occur with differential cross sections comparable to or larger than those for elastic scattering except at scattering angles near zero. CsI colliding with Ar or Xe at small impact parameters appears to exchange energy statistically between all the degrees of freedom available.

• Research Organization: Metcalf Chemical Laboratoires, Brown University, Providence, Rhode Island 02912
• OSTI ID: 7120283
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 66:7; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METAL COMPOUNDS
ARGON
ATOM COLLISIONS
ATOM-MOLECULE COLLISIONS
CESIUM COMPOUNDS
CESIUM IODIDES
COLLISIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELASTIC SCATTERING
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EXCITATION
HALIDES
HALOGEN COMPOUNDS
INORGANIC PHOSPHORS
IODIDES
IODINE COMPOUNDS
MOLECULE COLLISIONS
NONMETALS
PHOSPHORS
RARE GASES
SCATTERING
XENON