Radiation emission coefficients for sulfur hexafluoride arc plasmas

摘要: Abstract Calculations are made of the total spectral absorptivities plasmas sulfur hexafluoride for wavelengths 100 to 15,500 A. Both line and continuum radiation considered. For contributions from radiation, we have calculated strengths, widths shifts both neutral, singly doubly ionized atoms S F , except that used experimental strengths where they available. The theory was Griem, which assumes LS coupling. Curves given emission coefficient appropriate arc center isothermal cylindrical various radii pressures 1 10 atm temperatures 5000 35,000°K. It is found at can be an order magnitude higher than >2000 A less 10% greater 15,000°K. Predictions volt-ampere characteristics central arcs in SF 6 atm.