Photoelectron spectroscopy of short-lived molecules using synchrotron radiation

In this paper, examples are given of recent measurements made at the Daresbury Synchrotron Radiation Source on four short-lived diatomic molecules. The equipment designed to overcome the difficulties of interfacing reactive species with the ultra-high vacuum environment of a synchrotron radiation source is described. The measurements presented have been selected to show the advantage of using a continuum;source of radiation in identifying new structure in the photoionization continuum of these molecules.