Bromine has two isotopes of nearly equal abundance, 79 Br and 81 Br, but for simplicity we have chosen to use only the 79 Br isotope in our studies. The electronic structure of molecular bromine is very complicated since both relativistic effects and the crossings of multiple surfaces must be considered. We will use a set of potential energy curves for the lowest 23 covalent states of bromine that have been calculated by Gomes et al. In the work