Excitation functions and yields of (d, n) and (d, 2n) reactions on natural molybdenum

The activities of the EUROfusion consortium on the development of high quality nuclear data for fusion applications include evaluations of deuteron induced reactions and related data libraries for needs of the DEMO fusion power plant and IFMIF-DONES neutron-source nuclear analyses. Molybdenum is one of the major constituents of the reference stainless steels used in critical components of these projects. While the TENDL deuteron data library was the current reference used by EUROfusion, need of its further improvement has already been pointed out. The weak binding energy of the deuteron is responsible for the high complexity of its interaction with nuclei, involving also a variety of reactions initiated by the nucleons following the deuteron breakup. Their analysis completed that of the deuteron interactions with Mo and its stable isotopes, from elastic scattering to pre-equilibrium and compound–nucleus reactions, up to 50 MeV. A particular attention has been paid to the breakup, stripping, and pick-up direct interactions which amount to around half of the deuteron total–reaction cross section. The due account of most experimental data has validated the present approach, highlighted some prevalent features, and emphasized weak points and consequently the need for modeling/evaluation upgrade.

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Extension of evaluated cross section database for charged particle monitor reactions

Tárkányi,

Hermanne,

Ignatyuk

et al. 2024

J Radioanal Nucl Chem

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The evaluation and deduction of recommended cross section values allowing extension of the database to monitor energy and intensity parameters of charged particle beams is presented. Included are 53 charged particle (p, d, 3He, 4He) induced reactions on suited C, Al, Ti, Fe, Ni, Cu, Nb and Au targets. The new data allow more systematic simultaneous use of multiple reactions on the same target and promote the backings of electrodeposited and sedimented targets as monitoring aids. Where possible the energy range is extended to above 100 MeV. Integral yield curves over the studied energy range are derived and compared to experimentally measured yields at specific energy points. A comparison with the theoretical excitation curve prediction of the TALYS-code as available in the TENDL 2021–2023 libraries is shown.

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Excitation functions and yields of (d, n) and (d, 2n) reactions on natural molybdenum

Cited by 19 publications

References 6 publications

Sensitivity of the determination of some elements with Z?42 by a deuteron activational method in a cyclotron

Sensitivity of the determination of some elements with Z?42 by a deuteron activational method in a cyclotron

Modeling of Deuteron-Induced Reactions on Molybdenum at Low Energies

Extension of evaluated cross section database for charged particle monitor reactions

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