Machine A was the first apparatus in the Continetti lab. It has been used in studies of the dissociative photodetachment of O4-, dissociation dynamics of the triplet states of ozone and in studies of organic anions and radicals. With a new high-efficiency photoelectron imaging detector this is currently the instrument with the highest sensitivity for the study of dissociative photodetachment processes.
Machine C has undergone several changes since it was first built. Initially, the machine was used to perform coincidence studies of dissociative photodetachment (DPD) of anions, a technique pioneered in this lab. Experiments involving dissociative recombination were also attempted on this machine. The most recent experimental work on Machine C involved dissociative charge exchange which has led to several important insights into dissociation mechanisms and dynamics of highly excited electronic states of small molecules.