Study of electron interaction with halogenated anaesthetic molecules in gas phase at 50 eV electron energy

Abstract This study addresses the environmental concerns associated with halogenated anesthetic gases, specifically halothane, sevoflurane, and isoflurane, due to their contributions to global warming and ozone depletion. Using a combination of experimental and theoretical approaches, we analyzed elastic electron scattering properties of these compounds in the gaseous phase at an electron energy of 50 eV. The experimental data were gathered using a crossed-beam setup equipped with an electron gun and channeltron detection, with argon serving as the reference gas in a relative-flow method to calibrate the absolute cross-section measurements. Theoretical calculations were performed using the Independent Atom Model with Screening Corrected Additivity Rule (IAM-SCAR+I), which includes interference effects to compare with experimental results effectively. These findings enhance understanding of the scattering dynamics of these anesthetics, highlighting their atmospheric implications and potential environmental impacts.