Cross sections for elastic and inelastic electron scattering from carbon disulfide

Electron energy-loss spectra, measured as a function of the scattering angle, have been obtained for a carbon disulfide molecule, CS 2 , in the excitation energy range from 0 to 45 eV. The incident electron energy was 1000 eV. The absolute generalized oscillator strength (GOS) and absolute inelastic differential cross section have been determined as a function of the square of the momentum transfer ( K 2 ) for the intense allowed transition 1 Σ + u ← 1 Σ + g , centred at 6.3 eV. The absolute elastic differential cross section was also determined spanning an angular range from 1.5° to 10°. It is well known that at high incident energies and small scattering angles electrons behave like pseudo photons. The CS 2 photoabsorption spectrum was consequently obtained by extrapolation from the measured small angle electron energy-loss spectrum. The result shows a good resemblance to the atmospheric spectrum of Jupiter, following comet impact.