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Energy distribution of external bremsstrahlung from β-rays of90Y

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Il Nuovo Cimento (1955-1965)

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Summary

The external bremsstrahlung spectrum from β-rays of90Y stopped in Al, Ag and Pb is investigated between 0.4 and 2 MeV. The experimental spectra are compared with the theoretical ones, calculated according to the Bethe-Heitler formula for external bremsstrahlung cross-section. A disagreement (535% for Pb at 2 MeV) increasing with energy andZ is shown.

Riassunto

È stato studiato lo spettro della bremsstrahlung esterna prodotta dal frenamento dei raggi β dell’90Y in assorbitori di Pb, Ag ed Al. Le curve sperimentali sono state confrontate con quelle calcolate in base alla formula di Bethe-Heitler. Si è potuto così osservare un disaccordo notevole (535% per il Pb a 2 MeV) tra le due serie di curve, disaccordo che cresce col crescere dell’energia e del numero atomicoZ dell’assorbitore.

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Authors and Affiliations

  1. Istituto di Fisica del Politecnico, Milano

    C. Bussolati

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  1. C. Bussolati
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Bussolati, C. Energy distribution of external bremsstrahlung from β-rays of90Y. Nuovo Cim 13, 909–915 (1959). https://doi.org/10.1007/BF02724818

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  • DOI: https://doi.org/10.1007/BF02724818

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