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Effects of some level density models and γ-ray strength functions on production cross-section calculations of 16,18O and 24,26Mg radioisotopes

Einfluss von Niveaudichtemodellen und Strahlenstärkefunktionen auf die Berechnung des Produktionsquerschnitts von 16,18O- und 24,26Mg-Radioisotopen
Y. Kavun and R. Makwana
From the journal Kerntechnik


Oxygen and magnesium isotopes can be used in nuclear reactor materials as cooling, shielding, coating, electronics etc. They can also occur through nuclear reactions during the reactor operation. The exposure of high energy gamma can change the material and its properties, and hence its objective of selection may not remain satisfied. Thus, it is required to study the cross section of different reactions on nuclear reactor materials to understand their sustainability for the properties, for which they are chosen. In the scope of this study, theoretically, different level density model calculations and γ-ray strength functions have been performed for (γ, p) reaction for 16,18O and 24,26Mg nuclei using TALYS 1.9 and EMPI˙RE 3.2.2 codes. Also, semi empirical (γ, p) formula by Tel et al., have been calculated and compared with all results. The effect of different level density models defined in these codes on gamma strength has been studied. Finally, the consistency of these obtained data with EXFOR data have been investigated.


Sauerstoff- und Magnesiumisotope können in Materialien für Kernreaktoren zur Kühlung, Abschirmung, Beschichtung, Elektronik usw. verwendet werden. Sie können auch durch Kernreaktionen während des Reaktorbetriebs entstehen. Die Bestrahlung mit hochenergetischen Gammastrahlen kann das Material und seine Eigenschaften verändern, so dass das Ziel der Auswahl möglicherweise nicht erreicht wird. Daher ist es erforderlich, den Querschnitt verschiedener Reaktionen der Reaktormaterialien zu untersuchen, um ihre Nachhaltigkeit für die Eigenschaften zu verstehen, für die sie ausgewählt wurden. Im Rahmen dieser Studie wurden theoretische Berechnungen verschiedener Niveaudichtemodelle und Strahlenstärkefunktionen für die (γ, p)-Reaktion für 16,18O- und 24,26Mg-Kerne mit den Codes TALYS 1.9 und EMPI˙RE 3.2.2 durchgeführt. Auch die halbempirische (γ, p)-Formel von Tel et al. wurde berechnet und mit allen Ergebnissen verglichen. Die Auswirkung der verschiedenen in diesen Codes definierten Niveaudichtemodelle auf die Gammastärke wurde untersucht. Abschließend wurde die Übereinstimmung der erhaltenen Daten mit den EXFOR-Daten untersucht.


This study was supported by the Scientific Research Projects Coordination Unit of Kahramanmaras Sutcu Imam University. Project numbers 2020/7-18 M, 2020/7-19 M, 2020/7-21 M and 2021/3-2 YLS..


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Received: 2021-08-08
Published Online: 2021-12-17

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