Calculations of the influences of iodine dissociation and quenching on COIL flow properties

The water vapor has great influence on the performance of a chemical oxygeniodine laser. The equations for the O2(1Δ) yield and steady onedimensional flow with area change are set up to take into account the quenching. The code is made to calculate the flow properties of the Radicl device. The effects of iodine dissociation and quenching on the flow properties of a chemical oxygeniodine laser are studied theoretically. The role of area change and the factors in its design are analyzed.