Angle-resolved electron energy-loss spectra for the nitrous oxide (N 2 O) molecule have been measured at an impact energy of 1 keV. The spectra cover an excitation energy range from 0 to 50 eV and an angular range from 1.5 • to 10.0 • . The absolute inelastic differential cross section and the generalized oscillator strength (GOS) for the D 1 + ← X 1 + transition (9.6 eV) were determined in the 0.05-2.22 au K 2 range. The absolute elastic differential cross section was also determined spanning an angular range from 1.5 • to 15.5 • .
The absolute generalized oscillator strength and absolute inelastic differential cross section have been determined, as a function of the momentum transfer, for the 1E1u + 1B1u ← 1Ag transition in the benzene molecule. A previously described electron energy-loss spectrometer, featuring a Wien-filter velocity analyser, has been used. Employing 1000 eV incident electron energy and 1.0 eV energy resolution, absolute oscillator strength distribution as a function of electron energy loss was obtained in the 2–8° scattering angle range. The absolute elastic differential cross section was also determined spanning an angular range of 2°–14°. The photoabsorption spectrum converted from the electron energy-loss spectrum was compared with the interstellar extinction curve where we confirm the proportionality between the cross section and extinction.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.