학술논문
Impact of restricted spin-ranges in the Oslo Method: The example of (d,p)$^{240}\mathrm{Pu}$
Document Type
Working Paper
Author
Zeiser, F.; Potel, G.; Tveten, G. M.; Larsen, A. C.; Guttormsen, M.; Laplace, T. A.; Siem, S.; Bleuel, D. L.; Goldblum, B. L.; Bernstein, L. A.; Garrote, F. L. Bello; Campo, L. Crespo; Eriksen, T. K.; Görgen, A.; Hadynska-Klek, K.; Midtbø, J. E.; Renstrøm, T.; Sahin, E.; Tornyi, T.; Voinov, A.; Wiedeking, M.
Source
Compound-Nuclear Reactions. Springer Proceedings in Physics, vol 254 (2021)
Subject
Language
Abstract
In this paper we present the first systematic analysis of the impact of the populated vs. intrinsic spin distribution on the nuclear level density and $\gamma$-ray strength function retrieved through the Oslo Method. We illustrate the effect of the spin distribution on the recently performed $^{239}\mathrm{Pu}$(d,p$\gamma$)$^{240}\mathrm{Pu}$ experiment using a 12 MeV deuteron beam performed at the Oslo Cyclotron Lab. In the analysis we couple state-of-the-art calculations for the populated spin-distributions with the Monte-Carlo nuclear decay code RAINIER to compare Oslo Method results to the known input. We find that good knowledge of the populated spin distribution is crucial and show that the populated distribution has a significant impact on the extracted nuclear level density and $\gamma$-ray strength function for the $^{239}\mathrm{Pu}$(d,p$\gamma$)$^{240}\mathrm{Pu}$ case.
Comment: Presented at the 6th International Workshop on Compound-Nuclear Reactions and Related Topics
Comment: Presented at the 6th International Workshop on Compound-Nuclear Reactions and Related Topics