Relative Transition Probabilities of Rare Gases

We have measured relative transition probabilities for emissions from the noble gasses using hollow cathode lamps. Relative transition probabilities are reported for thirty lines from Ne I, twenty-four lines from Ar I, fourteen lines from Kr I, and twenty-one lines from Xe I. All transitions discussed are from the 2p level to 1s levels. Uncertainty has been measured and found to be within 5\%. This data can be applied to calibrate the relative detection efficiency of a spectrometer over a range of 4000 {\AA}--10000 {\AA}. Comparisons between the relative transition probabilities of each species is discussed.