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Determinazione dell'intensità di una sorgente di neutroni

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Il Nuovo Cimento (1943-1954)

Rissunto

L'intensità assoluta di una sorgente neutronica Raα+Be di 501,87 mg è stata misurata ricavando la curva di distribuzione in acqua con dei rivelatori sottili di In e valuatando la sensibilità del sistema di conteggio sottoponendo i medesimi rivelatori a un flusso noto di neutroni termici. Il valore trovato è 3,01.±0,15·106 neutroni sec−1.

Summary

The distribution curve in water of Raα+Be neutron has been determined by means of thin In foils. In order to evaluate the absolute strength of the source (501,87 mg of Ra), the yield of the counting system has been measured by irradiating the same detectors by a thermal neutron flux of known intensity. The source strength has been found to be 3,01±0,15·106 neutrons sec−1.

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Authors and Affiliations

  1. Laboratori CISE, Milano, Italy

    A. Bracci, U. Facchini & E. Germagnoli

Authors
  1. A. Bracci
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  2. U. Facchini
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  3. E. Germagnoli
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Bracci, A., Facchini, U. & Germagnoli, E. Determinazione dell'intensità di una sorgente di neutroni. Nuovo Cim 7, 881–891 (1950). https://doi.org/10.1007/BF02781329

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  • DOI: https://doi.org/10.1007/BF02781329

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