skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Electron scattering from N₂ below 30 eV. Rotationally-inelastic and momentum-transfer cross sections

Abstract

The calculation of rotationally inelastic collisions and momentum-transfer cross sections is treated for N₂. The rotationally inelastic differential, integrated, as well as the momentum-transfer cross sections are presented.

Authors:
 [1];  [1];  [2]
  1. Argonne National Laboratory (ANL), Argonne, IL (United States)
  2. Boston Univ., Dept. of Chemistry, MA (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
8515837
Report Number(s):
ANL-78-65(Pt.1)
TRN: 79-022623
DOE Contract Number:
W-31-109-ENG-38
Resource Type:
Technical Report
Resource Relation:
Related Information: In: Radiological and Environmental Research Division annual report: fundamental molecular physics and chemistry, October 1977-September 1978
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ELECTRON-MOLECULE COLLISIONS; INELASTIC SCATTERING; NITROGEN; DIFFERENTIAL CROSS SECTIONS; EV RANGE 10-100; GRAPHS; ISOLATED VALUES; LINEAR MOMENTUM TRANSFER; THEORETICAL DATA; COLLISIONS; CROSS SECTIONS; CRYOGENIC FLUIDS; DATA; DATA FORMS; ELECTRON COLLISIONS; ELEMENTS; ENERGY RANGE; EV RANGE; FLUIDS; INFORMATION; MOLECULE COLLISIONS; MOMENTUM TRANSFER; NONMETALS; NUMERICAL DATA; SCATTERING; 640304* - Atomic, Molecular & Chemical Physics- Collision Phenomena

Citation Formats

Siegel, Jon, Dehmer, Joseph L., and Dill, Dan. Electron scattering from N₂ below 30 eV. Rotationally-inelastic and momentum-transfer cross sections. United States: N. p., 1978. Web. doi:10.2172/8515837.
Siegel, Jon, Dehmer, Joseph L., & Dill, Dan. Electron scattering from N₂ below 30 eV. Rotationally-inelastic and momentum-transfer cross sections. United States. doi:10.2172/8515837.
Siegel, Jon, Dehmer, Joseph L., and Dill, Dan. Fri . "Electron scattering from N₂ below 30 eV. Rotationally-inelastic and momentum-transfer cross sections". United States. doi:10.2172/8515837. https://www.osti.gov/servlets/purl/8515837.
@article{osti_8515837,
title = {Electron scattering from N₂ below 30 eV. Rotationally-inelastic and momentum-transfer cross sections},
author = {Siegel, Jon and Dehmer, Joseph L. and Dill, Dan},
abstractNote = {The calculation of rotationally inelastic collisions and momentum-transfer cross sections is treated for N₂. The rotationally inelastic differential, integrated, as well as the momentum-transfer cross sections are presented.},
doi = {10.2172/8515837},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Dec 01 00:00:00 EST 1978},
month = {Fri Dec 01 00:00:00 EST 1978}
}

Technical Report:

Save / Share:
  • For the purpose of estimating effective stopping of low energy electrons in a particular direction, the momentum-transfer cross sections of Tungsten, Silicon, and Silicon Dioxide are furnished. The elastic scattering momentum-transfer cross sections are obtained by integration over the differential elastic scattering cross sections either in the individual references or in this paper numerically. At 10eV and below the elastic scattering momentum-transfer cross sections were also obtained (Itikawa) from the total scattering cross section, swarm experiments and the microwave method, as well as theoretical calculations. The inelastic collision momentum-transfer cross sections were calculated from the electron stopping powers by anmore » approximate theory due to Devaney. The total momentum-transfer cross section is then the sum of the elastic scattering and the inelastic collision cross sections. 9 refs., 4 tabs.« less
  • Five-state close coupling equations for electron--helium scattering are solved in the energy region from 30 to 100 eV. Integral and differential cross sections for excitation of the ground state to the n = 2 states (2/sup 3/S, 2/sup 1/S, 2/sup 3/P/sup 0/, and 2/sup 1/P/sup 0/) are presented. Calculated shapes of differential cross sections versus angle for various energies are in good agreement with measurements, but the magnitude of the cross sections are overestimated. Allowance for coupling between 2/sup 3/S and 2/sup 3/P/sup 0/ brings calculated differential cross sections into good quantitative agreement with experiment. 38 references.
  • We describe in detail a hybrid method for calculation of electron-polar molecule scattering in which (1) low-l S-matrix elements are calculated in the body frame using a potential which incorporates a realistic representation of the molecular core; (2) intermediate-l elements are calculated in the body frame using an exact method with a point dipole potential; and (3) high-l elements are calculated in the laboratory frame using the first Born approximation with a point dipole potential. Using this method, we have calculated integrated and momentum-transfer cross sections for e-LiF scattering from 1 to 20 eV (differential cross sections have been reportedmore » elsewhere).« less
  • We extend our recent work (Phys. Rev. A 16, 1423 (1977)) on total elastic electron-scattering cross sections for N 2 to include differential cross sections from 0 to 30 eV. Extensive comparisons with the results of experiments and other theories are made. The overall agreement is good, indicating that the multiple-scattering method is capable of providing a realistic first approximation to the electron-molecule interaction. At the same time, small systematic disagreements with experiment indicate clearly the need and objective of future improvements.