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Experimental Detection of Auto-Ionizing Transitions in Krypton by Electron Impact

Nature volume 192, pages 651–652 (1961)Cite this article

Abstract

A NUMBER of investigators1 have discussed the contribution of auto-ionization to the shape of the ionization efficiency curves obtained by electron impact; but, at least in the case of the rare gases, no direct correlation has been found between the structure observed in these curves and the energy-levels known to be strongly auto-ionizing from ultra-violet absorption spectroscopy2. I wish to present ionization efficiency curves for the Kr+ ion which exhibit discontinuities in slope at electron energies that lie quite close to the levels found in absorption. Both the intensity and separation of these levels fall off rather rapidly at higher energies, so that only those that lie directly above the normal 2P°3/2 ionization-level can be expected to be resolved. Using the Paschen notation3 for clearness in the figures; these levels are:

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References

  1. Fox, R. E., Hickam, W. M., Kjeldass, jun., T., Phys. Rev., 89, 555 (1953). Dorman, F. H., Morrison, J. D., and Nicholson, A. J. C., J. Chem. Phys., 32, 378 (1960).

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Authors and Affiliations

  1. Analytical Chemistry Division, Oak Ridge National Laboratory*, Oak Ridge, Tennessee

    JOHN F. BURNS

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  1. JOHN F. BURNS
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BURNS, J. Experimental Detection of Auto-Ionizing Transitions in Krypton by Electron Impact. Nature 192, 651–652 (1961). https://doi.org/10.1038/192651a0

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