Hot-Atom Chemiluminescence: A Beam Study Of The O(3P) + H2, CH4 Systems

Abstract

A beam of fast oxygen atoms in the O(3P) state was collided with H2 and CH4 at 10 - 300 eVlab. Chemiluminescence spectra for the H2 target show OH(A-X) emission, while for the CH4 target OH(A-X) as well as CH(A,B-X) emissions are observed. Excitation functions were obtained. For the H2 target they resemble those of N(4S) + H2 collisions, while for the methane target the OH(A) yield increases with collision energy up to 50 eVCM and later decreases slowly, according to the “billiard ball” model.