The Momentum Transfer Cross Section for Electrons in Helium
Citations Over TimeTop 10% of 1967 papers
Abstract
Measurements of the drift velocity, the ratio of diffusion coefficient to mobility, and the "magnetic drift velocity" for electrons in helium have been made at 293°K in the range 1.8 X 10−19 < E/N < 3 X 10−17 V cm2. From an analysis of the drift velocity data, an energy-dependent momentum transfer cross section has been derived for which an error of less than ± 2 % is claimed over the central portion of the energy range. The cross section agrees with the theoretical cross section of La Bahn and Callaway to within 2% over the whole energy range. The agreement with the cross section derived by a number of procedures from the total elastic scattering cross section measured by Golden and Bandel is less satisfactory. The drift data are sufficiently accurate to enable a search to be made for the effects of fine structure in the cross section at low energy. The results do not support the existence of such structure.
Related Papers
- → A determination of the elastic-scattering cross section from the reaction K−n → pK−π− at 3 GeV/c(1970)35 cited
- → Finite sum expressions for elastic and reaction cross sections(2013)9 cited
- → Neutron Cross Sections at 115 ev and 300 ev—I(1949)39 cited
- → Features of high energy pp elastic scattering at small t(2003)
- Features of high energy pp and pA elastic scattering at small t(2003)