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Investigation of the decay of polonium-210

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Il Nuovo Cimento (1955-1965)

Summary

Conversion coefficient of 800 keV γ-rays from the decay of Polonium-210 has been measured using scintillation method to be 0.039 ± 0.01. The value of conversion coefficient has also been obtained by the measurement of conversion electrons with an end window type G.M. counter. The absorption curve for electrons is given and its shape has been interpreted in the light of the results ofAlphonse Lagasse andJacqueline Doyeb (Compt. Rend.,239, (11), 670 (1954)). The value of conversion coefficient obtained in this way is 0.014 ± 0.005. The discrepancy between the two values has been explained as due toK andL shell ionization by α-particles. No coincidences were found between the different parts of γ-ray spectrum.

Riassunto

Col metodo della scintillazione si è misurato il coefficiente di conversione dei raggi γ da 800 keV del decadimento del210Po, ottenendo 0.039 ± 0.01. Il valore del coefficiente di conversione è stato anche ottenuto misurando gli elettroni di conversione con un contatore G.M. a finestra terminale. Si dà la curva di assorbimento degli elettroni e la sua forma è stata interpretata al lume dei risultati diAlhponse Lagasse eJacqueline Doyeb (Compt. Rend.,239, (11), 670 (1954)). Il valore del coefficiente di conversione così ottenuto è 0.014 ± 0.005. La diversità tra i due valori è stata attribuita alla ionizzazione degli stratiK edL dovuta alle particelle α. Non si sono trovate coincidenze tra le varie parti dello spettro dei γ.

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Research Scholar of Ministry of Education, Government of India.

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Singh, B.P., Hans, H.S. & Gill, P.S. Investigation of the decay of polonium-210. Nuovo Cim 9, 699–705 (1958). https://doi.org/10.1007/BF02740909

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  • DOI: https://doi.org/10.1007/BF02740909

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