Angular and energy distributions of secondary electrons from helium. Slow electrons ejected by electron impact

Journal Article · Mon Aug 01 00:00:00 EDT 1983 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.28.656· OSTI ID:5889546

Kim, Y

Recommended angular and energy distributions of slow secondary electrons produced from helium by electron impact are presented in a compact table. The table lists coefficients for the Legendre polynomials from which all angular and energy distributions can be generated for scattering angles between 0/sup 0/ and 180/sup 0/, secondary-electron energies between 0 and 40 eV, and incident-electron energies between 100 and 2000 eV. The distributions represent double-differential cross sections that are consistent with expected asymptotic behavior, angular symmetry, and integrated cross sections. These cross sections should be sufficiently reliable to serve as normalization standards for experiments on secondary-electron distributions.

• Research Organization: Argonne National Laboratory, Argonne, Illinois 60439 and Joint Institute for Laboratory Astrophysics, University of Colorado and National Bureau of Standards, Boulder, Colorado 80309
• OSTI ID: 5889546
• Journal Information: Phys. Rev. A; (United States), Vol. 28:2
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ELECTRON-ATOM COLLISIONS
IONIZATION
HELIUM
ANGULAR DISTRIBUTION
BORN APPROXIMATION
COMPARATIVE EVALUATIONS
DIFFERENTIAL CROSS SECTIONS
ELASTIC SCATTERING
ELECTRON EMISSION
ENERGY SPECTRA
EV RANGE 100-1000
ION-ATOM COLLISIONS
KEV RANGE 01-10
LEGENDRE POLYNOMIALS
PROTONS
SECONDARY EMISSION
ATOM COLLISIONS
BARYONS
COLLISIONS
CROSS SECTIONS
DISTRIBUTION
ELECTRON COLLISIONS
ELEMENTARY PARTICLES
ELEMENTS
EMISSION
ENERGY RANGE
EV RANGE
FERMIONS
FLUIDS
FUNCTIONS
GASES
HADRONS
ION COLLISIONS
KEV RANGE
NONMETALS
NUCLEONS
POLYNOMIALS
RARE GASES
SCATTERING
SPECTRA
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena