Impact of Maxwellian averaged neutron capture cross-sections for 182W(n,γ)183W reaction on W isotopic compositions
Vol. 130 No. 1D (2021), Original Article
Vol. 130 No. 1D (2021)

Impact of Maxwellian averaged neutron capture cross-sections for 182W(n,γ)183W reaction on W isotopic compositions

Original Article
https://doi.org/10.26459/hueunijns.v130i1D.6359
Published 2021-12-31
Nguyen Nhu Le*
University of Education, Hue University, 34 Le Loi St., Hue, Vietnam
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Keywords

neutron capture reaction
s-process
isotopic composition

How to Cite

1.
Nguyen NL. Impact of Maxwellian averaged neutron capture cross-sections for 182W(n,γ)183W reaction on W isotopic compositions. hueuni-jns [Internet]. 2021Dec.31 [cited 2024Dec.22];130(1D):39-45. Available from: https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/6359
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Abstract

The W isotopic compositions have been investigated within the classical approach to the s-process nucleosynthesis. The Maxwellian averaged neutron capture cross-sections (MACS) adopted in the calculation are obtained from the TALYS-1.9 code with four nuclear level density models: the constant temperature plus Fermi gas, the back-shifted Fermi gas, the generalised superfluid, and the microscopic method of Goriely. The results show that the uncertainty from MACS values is already propagated in the W isotopic ratios, and the generalised superfluid prediction exhibits the largest deviation from the observed 182W/184W ratio. In addition, since branching points have not been considered in this work, the MACS values of the 182W(n,γ)183W reaction are found not to affect the estimated 183W/184W ratio.

https://doi.org/10.26459/hueunijns.v130i1D.6359
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