Abstract
Measurements are presented of the total cross section for scattering of low-energy electrons by a mixture of and metastable argon. The atom-beam-recoil method was used to make an absolute measurement. The cross section was measured from 0.35 to 6.75 eV with an angular resolution of 16.1° in the electron polar scattering angle at an electron energy of 1 eV. The velocity distribution of the atom beam was measured by time-of-flight spectroscopy. Electron beams with typical energy distributions of 0.3-eV full width at half-maximum were used. The over-all error in the cross section is estimated at ± 13% and the electron-energy determination is believed accurate to ± 0.150 eV.
- Received 14 September 1970
DOI:https://doi.org/10.1103/PhysRevA.3.1622
©1971 American Physical Society