Characterizing Fluorine and Chlorine Atom Flow Rates Using Iodine Atom Spectrometry

摘要

The production of F and Cl atoms in an electrical discharge of F_2 or Cl_2 has been examined in a flow reactor. A tunable diode laser was used to probe the concentration and translational temperature of I atoms produced By F and Cl atom reactions with HI. Kinetic modeling codes were used to determine the discharge efficiencies From the titration plots and the observed trends for atom concentration as a function of F_2 or Cl_2 and pressure. These calculations indicate that the dc discharge used in these experiments is 100/100 efficient for F_2 flow rates ≤0.5 mmol s~-1 and reactor pressure≤torr.