Angular distribution of electrons elastically scattered from gases: 1. 5-- 400 eV on N/sub 2/. II

Journal Article · Mon Sep 01 04:00:00 EDT 1980 · Phys. Rev., A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.22.923· OSTI ID:5160170

Shyn, T W; Carignan, G R

Differential cross sections of electrons elastically (vibrationally) scattered from N/sub 2/ have been measured by a crossed-beam method. Energy and angular range of the measurements are 1.5 to 400 eV and -96/sup 0/ to +156/sup 0/, respectively, with an emphasis on the ..pi../sub g/ shape-resonance region. The wide energy range of the measurements provides the basis for intercomparison of a large suite of similar measurements. The comparison shows generally good to excellent agreement. The comparison with theoretical calculations is less satisfactory with significant differences in the magnitudes of the cross sections and only fair agreement in shape. In the ..pi../sub g/ shape-resonance region, the elastic cross sections appear to be one-half of the total cross sections, approximately. Inelastic cross sections, mainly vibrational excitations, would thus appear to have a magnitude near that of the elastic cross section suggesting the importance of an independent measurement of vibrational-excitation cross sections in the region of the ..pi../sub g/ resonance.

• Research Organization: Space Physics Research Laboratory, University of Michigan, Ann Arbor, Michigan 48109
• OSTI ID: 5160170
• Journal Information: Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 22:3; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR DISTRIBUTION
COLLISIONS
CROSS SECTIONS
CRYOGENIC FLUIDS
DIFFERENTIAL CROSS SECTIONS
DISTRIBUTION
ELASTIC SCATTERING
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
ELEMENTS
ENERGY RANGE
EV RANGE
EV RANGE 01-10
EV RANGE 10-100
EV RANGE 100-1000
FLUIDS
MOLECULE COLLISIONS
NITROGEN
NONMETALS
SCATTERING