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Recent Advances in Deuteron Nuclear Data Evaluation for Structural Materials: Iron Isotopes

13 May 2025, 11:00
30m

Speaker

Shinsuke Nakayama

Description

Since iron is one of the primary structural materials used in accelerators, to evaluate radioactivity production and design radiation shielding for the International Fusion Materials Irradiation Facility (IFMIF) and its precursor facilities, accurate nuclear data on deuteron-induced reactions for iron are essential.
 These data include production cross sections of key radioactive isotopes such as Mn-54, Co-56, and Co-57, as well as energy and angular distributions of emitted neutrons.
However, high-precision deuteron nuclear data for iron isotopes have been lacking until recently.
 In this study, we evaluated deuteron-induced nuclear data for the stable isotopes of iron (Fe-54, Fe-56, Fe-57, and Fe-58).
The resulting evaluated data successfully reproduce not only the residual nucleus production cross sections but also the energy spectra of emitted neutrons.
 In this presentation, we provide an overview of the evaluation methodology and discuss the key results obtained.

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