Intensity Variation with Scattering Angle of Electronic Transitions in H2O Excited by Electron Impact

Abstract
Electron‐impact spectra of water vapor have been investigated at 400‐ and 500‐V electron kinetic energy. The relative intensities of the five peaks associated with the A and B Rydberg transitions have been studied as a function of the scattering angle. The results suggest a new method of identification of vibrational levels where a high‐resolution study of rotational structure is not feasible.