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Photoelectric cross-sections for theL, M andN shells of uranium for photons of 122 keV

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Il Nuovo Cimento (1955-1965)

Summary

The internal-external conversion method has been used to find the photoelectric cross-sections for theL, M andN shells of uranium for photons of 122 keV. Results obtained areτ L=(360±40)b/atom,τ L I+L II/τ L III=3.1±0.35,τ L /τ M =4.55±0.44, andτ M /τ N+ =2.5±0.3. Theτ L value is higher than that predicted fromτ K when theτ K /τ L ratio is assumed to be energy-independent. Theτ L I+L II/τ L III andτ M /τ N+ ratios are in agreement with other results.

Riassunto

Si è usato il metodo di conversione interno-esterno per trovare le sezioni d’urto fotoelettriche degli stratiL, M andN dell’uranio per fotoni di 122 keV. I risultati sono:τ L =(360±40) b/atomo,τ L I+L II/τ L III=3.1±0.35,τ L /τ M =4.55±0.44 eτ M /τ N+ =2.5±0.3. Il valore diτ L è maggiore di quello predetto daτ K se si suppone che il rapportoτ K /τ L sia indipendente dall’energia. I rapportiτ L I+L II/τ L III eτ M /τ N+ sono in accordo con altri risultati.

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Author notes

  1. H. W. Boyd

    Present address: West Georgia College, Carrollton, Ga.

Authors and Affiliations

  1. Physics Department, Vanderbilt University, Nashville, Tenn.

    H. W. Boyd, W. H. Brantley & J. H. Hamilton

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  1. H. W. Boyd
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  2. W. H. Brantley
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  3. J. H. Hamilton
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Work supported in part by a grant from the National Science Foundation.

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Boyd, H.W., Brantley, W.H. & Hamilton, J.H. Photoelectric cross-sections for theL, M andN shells of uranium for photons of 122 keV. Nuovo Cim 39, 1–9 (1965). https://doi.org/10.1007/BF02814250

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  • DOI: https://doi.org/10.1007/BF02814250

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