Abstract
IN making some determinations of the capacity necessary just to produce secondary spectra, I have found that this critical capacity increases very rapidly with decreasing wave-length. The primary spectrum does not go over suddenly as the critical capacity is reached, but the red and yellow portions go over first, then finally, at a much greater capacity, the violet. Critical capacity as a function of wave-length is well represented by the exponential 6/eλ-λ approaching a constant value in the infra-red and the value infinity in the ultra-violet, perhaps not farther out than 250μμ.
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NUTTING, P. Atomic Structure in the Light of Secondary Spectra. Nature 70, 342 (1904). https://doi.org/10.1038/070342a0
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DOI: https://doi.org/10.1038/070342a0
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