THERMAL-DECOMPOSITION AND THE APPARENT DISSOCIATIVE ATTACHMENT CROSS-SECTION OF HEATED METHYL-CHLORIDE, ETHYL-CHLORIDE AND T-BUTYL-CHLORIDE

The dissociative attachment process in methyl-, ethyl- and t-butyl-chl oride is observed as a function of gas temperature in an electron beam experiment. Evidence is presented that the rapid increase in the cros s sections near 0.8 eV with temperature, observed previously in swarm experiments in the first two gases, is due to the production of HCl by decomposition of the parent compound on the walls of the oven.