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Gamma-gamma directional-correlation studies in143Pr

Исследование гамма-гамма корреляции в143Pr

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Il Nuovo Cimento A (1965-1970)

Summary

The gamma-gamma directional correlations on (293-57), (665-57), (881-57), (231-491) and (587-351) keV cascades in143Pr are studied with high-efficiency sum and sum-peak coincidence spectrometers. The correlation coefficients of the cascades are obtained. The spins of the 351, 491, 722 and 938 keV levels in143Pr are conclusively assigned. The mixing ratios for the 231, 587, 665 and 881 keV transitions are determined.

Riassunto

Si studiano le correlazioni direzionali gamma-gamma sui decadimenti a cascata del143Pr a (293-57), (665-57), (881-57), (231-491) e (587-351) keV, con spettrometri di alta efficienza a somma e a coincidenza somma-picco. Si ottengono i coefficienti di correlazione delle cascate. Si assegnano definitivamente gli spin dei livelli 351, 491, 722 e 938 keV per il143Pr. Si determinano i rapporti di mescolanza per le transizioni a 231, 587, 665 e 881 keV.

Реэюме

Исследуются гамма-гамма корреляции для (293-57), (665-57), (881-57), (231-491) и (587-351) кзВ каскадов в143Pr, испольэуя спектрометры с выс-сокой зффективнистью. Получены следуюшие корреляционные коеффициенты для каскадов. Для уровней 351, 491, 722 и 938 кзВ в143Pr приписываются соотсетственно следуюшие эначения спинов 3/2+, 5/2+, 3/2+ и 3/2+. Определяются отнощения смещивания для переходов 231, 587, 665 и 881 кзВ.

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Authors and Affiliations

  1. Laboratories for Nuclear Research, Visakhapatnam

    S. Venkataratnam, G. Satyanarayana & V. Lakshminarayana

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  1. S. Venkataratnam
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  2. G. Satyanarayana
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  3. V. Lakshminarayana
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To speed up publication, the authors of this paper have agreed to not receive the proofs for correction.

A preliminary report of the present work was presented at theNuclear Physics and Solid State Physics Symposium, Chandigarh, December 1972.

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Venkataratnam, S., Satyanarayana, G. & Lakshminarayana, V. Gamma-gamma directional-correlation studies in143Pr. Nuov Cim A 21, 687–706 (1974). https://doi.org/10.1007/BF02731225

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  • DOI: https://doi.org/10.1007/BF02731225

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