Low-energy deuteron-induced reactions on<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mrow /><mml:mn>93</mml:mn></mml:msup></mml:math>Nb

Avrigeanu, M.; Avrigeanu, V.; Bém, P.; Fischer, U.; Honusek, M.; Koning, A. J.; Mrázek, J.; Šiméčková, E.; Štefánik, Milan; Zavorka, Lukas

doi:10.1103/physrevc.88.014612

Cited by 32 publications

(50 citation statements)

References 77 publications

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“…In fact, the major underestimation of the experimental data by TENDL-2017 evaluation is just due to the overlooking of the key role of direct stripping process. Actually, this proof is just in line with the previous discussions of the (d, p) excitation functions for 51 V [6], 50 Cr [7], 58 Fe [8], 64 Ni [9], and 93 Nb [21] target nuclei, which show apparent discrepancies between the measured data and TENDL evaluations. The analysis of the 55 Mn(d, x) 54 Mn reaction [ Fig.…”

Section: Mn Reactionsupporting

confidence: 88%

“…Altogether, the sum of the five reaction contributions succeeded to describe the measured 55 Mn(d, pxn) 54 Mn cross sections along the whole energy interval. Moreover, the underestimation of the lowest-energy data by the TENDL-2017 evaluation could be just the effect of the (d, t) pick-up process overlooking as it was stressed out in previous analysis of deuteron interaction with nat Ni [9] and 93 Nb [21]. The new data measured in this work for 55 Mn(d, x) 51 Cr reaction are important for completing the 51 Cr excitation function at incident energies just above its effective threshold, while previous measurements covered higher energies from 22 up to 50 MeV [11,12] [ Fig.…”

Section: Mn Reactionmentioning

confidence: 96%

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Deuteron-induced reactions on manganese at low energies

Avrigeanu¹,

Šiméčková

Fischer

et al. 2020

Phys. Rev. C

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Background: The scarce data systematics and complexity of deuteron interactions demand the update of both the experimental database and theoretical frame of deuteron activation cross sections. Various reactions induced by neutrons and protons following the deuteron breakup (BU) should be also taken into account. On the other hand, deuteron reaction cross sections recommended recently for high-priority elements are still based on data fit without predictive power.Purpose: Accurate new measurements of low-energy deuteron-induced reaction cross sections for monoisotopic ( 55 Mn) natural manganese target enhance the related database as well as the opportunity of an unitary and consistent account of the related reaction mechanisms.Methods: Activation cross sections of 54,56 Mn, and 51 Cr nuclei by deuterons on 55 Mn were measured at energies ≤20 MeV by the stacked-foil technique and high resolution gamma spectrometry at the U-120M cyclotron of CANAM, NPI CAS. Then all available data for deuterons on 55 Mn up to 50 MeV are analyzed paying particular attention to BU and direct reaction (DR) mechanisms.Results: Newly measured activation cross sections strengthen the deuteron database at low energies, at once with a consistent account for the first time of all available data.Conclusions: Due account of deuteron-induced reactions on 55 Mn, including particularly the new experimental data at low energies, is provided by a suitable BU and DR assessment.

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Section: Mn Reactionsupporting

confidence: 88%

Section: Mn Reactionmentioning

confidence: 96%

Deuteron-induced reactions on manganese at low energies

Avrigeanu¹,

Šiméčková

Fischer

et al. 2020

Phys. Rev. C

Self Cite

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“…This difference can be due to the evaluation of the breakup cross section and breakup spectra models included in TALYS. Recently a new breakup cross section model developed by IFIN-HH [10] is under implementation in TALYS. This new model could give mode accurate results on the position and amplitude of the breakup component and improve the agreement between simulations and experiments.…”

Section: Resultsmentioning

confidence: 99%

Implementation of a new energy-angular distribution of particles emitted by deuteron induced nuclear reaction in transport simulations

et al. 2017

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Abstract. MCUNED code is an MCNPX extension able to handle evaluated nuclear data library for light ion transport simulations. In this work the MCUNED code is improved to describe more accurately the neutron emission during deuteron induced nuclear reaction. This code update consists in introducing a new methodology to take into account the angular distribution of neutron produced by deuteron breakup reaction. To carry out this work a new formulation for the angular distribution of neutrons produced by breakup reaction has been proposed. The implementation of this new methodology requires the use of extra parameters which are provided by the nuclear code TALYS and stored in the ENDF file. This new methodology shows significant improvement in comparison with the former treatment of neutron emission kinematics, these results are in good agreement with experimental data.

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“…(i) The optical model potential calculations within TALYS are performed with ECIS-2006 [46] using a default OMP based on a simplification of the folding approach of Watanabe [47]. (Note that this default choice for the α-OMP in TALYS will change to [48,49] in later versions.) (ii) Elastic α scattering experiments at E α =24.7 MeV on nuclei ranging from O to U were performed in the middle of the 1960's and a consistent optical potential study was carried out.…”

Section: Statistical Model Calculationsmentioning

confidence: 99%

α -induced reactions on In115 : Cross section measurements and statistical model analysis

et al. 2018

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Background: α-nucleus optical potentials are basic ingredients of statistical model calculations used in nucleosynthesis simulations. While the nucleon+nucleus optical potential is fairly well known, for the α+nucleus optical potential several different parameter sets exist and large deviations, reaching sometimes even an order of magnitude, are found between the cross section predictions calculated using different parameter sets. Purpose: A measurement of the radiative α-capture and the α-induced reaction cross sections on the nucleus 115 In at low energies allows a stringent test of statistical model predictions. Since experimental data are scarce in this mass region, this measurement can be an important input to test the global applicability of α+nucleus optical model potentials and further ingredients of the statistical model. Methods: The reaction cross sections were measured by means of the activation method. The produced activities were determined by off-line detection of the γ rays and characteristic x rays emitted during the electron capture decay of the produced Sb isotopes. Results:The simultaneous measurement of the (α,γ ) and (α,n) cross sections allowed us to determine a best-fit combination of all parameters for the statistical model. The α+nucleus optical potential is identified as the most important input for the statistical model. The best fit is obtained for the new Atomki-V1 potential, and good reproduction of the experimental data is also achieved for the first version of the Demetriou potentials and the simple McFadden-Satchler potential. The nucleon optical potential, the γ -ray strength function, and the level density parametrization are also constrained by the data although there is no unique best-fit combination. Conclusions:The best-fit calculations allow us to extrapolate the low-energy (α,γ ) cross section of 115 In to the astrophysical Gamow window with reasonable uncertainties. However, still further improvements of the α-nucleus potential are required for a global description of elastic (α,α) scattering and α-induced reactions in a wide range of masses and energies.

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Low-energy deuteron-induced reactions on93Nb

Cited by 32 publications

References 77 publications

Deuteron-induced reactions on manganese at low energies

Deuteron-induced reactions on manganese at low energies

Implementation of a new energy-angular distribution of particles emitted by deuteron induced nuclear reaction in transport simulations

α -induced reactions on In115 : Cross section measurements and statistical model analysis

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