Absolute elastic differential electron scattering cross sections in the intermediate energy region. IV. CO

Journal Article · Thu Dec 14 23:00:00 EST 1978 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.436560· OSTI ID:6565510

Tanaka, H; Srivastava, S K; Chutjian, A

Using a crossed electron beam--molecular beam scattering geometry and a relative-flow technique, ratios of elastic differential cross sections of CO to those of He have been measured at electron impact energies of 3, 5, 7.5, 9.9, 15, 20, 30, 50, 75, and 100 eV. At each energy, an angular range of 15/sup 0/ to 130/sup 0/ has been covered. These ratios have been multiplied by previously known He elastic differential cross sections to obtain elastic differential cross sections for CO. Since pure rotational excitations were not resolved, the elastic differential cross sections are a sum of elastic and pure rotational excitations at room temperature. From a knowledge of differential cross sections (DCS), integral and momentum transfer cross sections have been calculated. Both the DCS and integral cross sections are compared at 50, 75, and 100 eV to a recent two-potential theory of e--molecule scattering. Present results show that the isoelectronic molecules CO and N/sub 2/ have very similar magnitudes and shapes of their differential cross sections.

• Research Organization: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91103
• OSTI ID: 6565510
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 69:12; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
BEAMS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
COLLISIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELASTIC SCATTERING
ELECTRON BEAMS
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EV RANGE
EV RANGE 10-100
EXCITATION
EXCITED STATES
LEPTON BEAMS
MOLECULAR BEAMS
MOLECULE COLLISIONS
OXIDES
OXYGEN COMPOUNDS
PARTICLE BEAMS
ROTATIONAL STATES
SCATTERING