Summary
The γ-radiation following inelastic scattering of neutrons from97Mo was studied for incident neutron energies in the range of 1200 to 3200 keV. The levels and the decay schemes of97Mo were determined up to an excitation energy of 2905.5 keV; 32 γ-decays were observed and 7 levels were proposed for the first time. Level spins and parities were deduced by comparing the experimental γ-ray yields with the theoretical predictions of the statistical model of the compound nucleus.
Riassunto
È stata studiata la radiazione γ indotta dalla diffusione anelastica di neutroni da parte del97Mo, nell’intervallo di energia dei neutroni incidenti da 1200 a 3200 keV. Sono stati determinati i livelli e lo schema dei decadimenti fino a un’energia di eccitazione di 2905.5 keV; per la prima volta sono stati osservati 32 decadimenti γ e sono stati proposti 7 livelli. Gli spin e le parità dei livelli sono stati dedotti per mezzo del confronto tra le intensità sperimentali delle transizioni γ e quelle previste secondo il modello statistico del nucleo composto.
Резюме
Исследуется γ-излучение, сопровождающее неупругое рассеяние нейтронов на97Mo при энергии падающих нейтронов в области от 1200 до 3200 кэВ. Определяются уровни и схемы распадов97Mo до энергий возбуждения вплоть до 2905.5 кэВ. Впервые наблюдались 32 гамма-распада и предложены 7 уровней. Определены спины и четности уровней, посредством сравнения эксприментальных выходов гамма-излучения с теоретическими предсказаниями статистической модели компаунд-ядра.
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Abbondanno, U., Demanins, F. & Raicich, F. A study of the97Mo(n, n′ γ)97Mo reaction. Nuov Cim A 102, 1533–1562 (1989). https://doi.org/10.1007/BF02825155
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DOI: https://doi.org/10.1007/BF02825155