Improving the Ar i and ii branching ratio calibration method: Monte Carlo simulations of effects from photon scattering/reflecting in hollow cathodes

The Ar i and ii branching ratio calibration method is discussed with the goal of improving the technique. This method of establishing a relative radiometric calibration is important in ongoing research to improve atomic transition probabilities for quantitative spectroscopy in astrophysics and other fields. Specific suggestions are presented along with Monte Carlo simulations of wavelength dependent effects from scattering/reflecting of photons in a hollow cathode.