A consistent set of statistical-model input parameters, validated by analysis of various independent data, makes possible the assessment of an
α
-particle optical model potential Phys. Rev. C
90
, ...044612 (2014) also for nucleon-induced
α
-emission within the
A
∼
60
mass-number range. The advantage of recent data for low-lying states feeding is taken as well. Consideration of additional reaction channels leading to increase of the
α
-emission beyond the statistical predictions has concerned the pickup direct interaction and Giant Quadrupole Resonance similar features.
An extended discussion of the deuteron-induced reactions concerning full parametrization procedure as well as consideration of the theoretical models associated to the deuteron interaction process is ...carried out. The key role of direct interactions, i.e., breakup, stripping and pick-up processes is stressed out by comparison of the available experimental data with theoretical and evaluation predictions.
Following the EUROfusion PPPT-programme action for an advanced modeling approach of deuteron-induced reaction cross sections, as well as specific data evaluations in addition of the TENDL files, an ...assessment of the details and corresponding outcome for the latter option of TALYS for the breakup model has been carried out. The breakup enhancement obtained in the meantime within computer code TALYS, by using the evaluated nucleon-induced reaction data of TENDL-2019, is particularly concerned. Discussion of the corresponding results, for deuteron-induced reactions on
58
Ni,
96
Zr, and
231
Pa target nuclei up to 200 MeV incident energy, includes limitations still existing with reference to the direct-reaction account.
The consequences which the suitable consideration of direct interaction, namely the breakup, stripping and pick-up processes, may have for the analysis of the deuteron surrogate reacions as well as ...for studies of nuclear-level density models on the basis of nucleon spectra analysis in deuteron-induced reactions are discussed. An increased attention is paid to the deuteron breakup which is the dominant mechanism for the interaction processes at low incident energies around Coulomb barrier, particularly on actinides.
Abstract
The assessment of an
$$\alpha $$
α
-particle optical model potential for nucleon–induced
$$\alpha $$
α
-emission within the
$$A$$
A
$$\sim $$
∼
60 mass-number range Avrigeanu and Avrigeanu ...(Eur. Phys. J. A 57:54, 2021) is completed by analysis of neutron–induced reactions on stable Ni isotopes. The same consistent set of nuclear–model input parameters as well as first uncertainty analysis of calculated cross sections related to the accuracy of independent data formerly used within parameter setting up have been concerned. Description of absorption and emission of
$$\alpha $$
α
-particles by the same potential is validated, while the pickup direct reaction and Giant Quadrupole Resonance (GQR)
$$\alpha $$
α
-emission beyond the statistical predictions are confirmed by recent data around the GQR energies.
The role of nuclear data for neutronics analyses of Fusion Technology (FT) facilities is presented in this paper. Nuclear data evaluations of high quality are required for transport simulations, ...uncertainty assessments, activation and radiation damage calculations affecting the design and performance of the FT facilities, as well as safety, licensing, waste management and decommissioning issues. A corresponding programme on the nuclear data development (NDD) and qualification is conducted within the Power Plant Physics and Technology (PPPT) programme of EUROfusion supporting the development of the DEMO fusion power plant and the IFMIF-DONES neutron source. The programme builds on the achievements of pre-ceding NDD activities within the European fusion programme as addressed in the paper. Further needs for design, shielding, activation and radiation dose calculations are discussed, and recommendations are given to further improve and qualify the nuclear data base for PPPT nuclear analyses. This includes dedicated experimental activities tailored to the needs of DEMO and IFMIF-DONES.
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