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1.
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Comparative analysis of empirical parametrization and microscopical studies of deuteron-induced reactions
/ Avrigeanu, M (Bucharest, NIEP) ; Avrigeanu, V (Bucharest, NIEP)
An extended analysis of the deuteron–induced reactions is carried out paying due
consideration to both the reaction cross-section parametrization procedure and
theoretical models associated to the deuteron interaction process. The key role
of direct interactions, i.e., breakup, stripping and pickup processes is
stressed out by the comparison of data with theoretical and evaluation
predictions ..
Geneva : CERN, 2019 - 8 p.
- Published in : CERN Proc.: 1 (2019) , pp. 131-138
Fulltext: PDF;
In : 15th International Conference on Nuclear Reaction Mechanisms, Varenna, Italy, 11 - 15 Jun 2018, pp.131-138
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2.
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Role of the direct mechanisms in the deuteron-induced surrogate reactions
/ Avrigeanu, M (Bucharest, IFIN-HH) ; Avrigeanu, V (Bucharest, IFIN-HH)
An extended analysis of the key role of direct interactions, i.e., breakup, stripping and pick-up processes, for the deuteron–induced surrogate reactions is presented. Particular comments concern the deuteron breakup which is dominant in the case of the ( d; p g ) surrogate reactions on actinides target nuclei, around the Coulomb barrier..
Geneva : CERN, 2015
Published version from CERN: PDF;
In : 14th International Conference on Nuclear Reaction Mechanisms, Villa Monastero, Varenna, Italy, 15 - 19 Jun 2015, pp.203
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3.
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4.
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The Role of Fe and Ni for S-process Nucleosynthesis and Innovative Nuclear Technologies
/ Giubrone, G (Valencia U., IFIC) ; Ventura, A (ENEA, Bologna, Italy.) ; Perkowski, J (Lodz U.) ; Andriamonje, S (CERN) ; Carrapico, C (ITN, Lisbon) ; Wallner, A (U. Vienna (main)) ; Vannini, G (INFN, Bologna ; Bologna U.) ; Quesada, J M (Seville U.) ; Lederer, C (U. Vienna (main)) ; Tarrio, D (Santiago de Compostela U.) et al.
The accurate measurement of neutron capture cross sections of all Fe and Ni isotopes is important for disentangling the contribution of the s-process and the r-process to the stellar nucleosynthesis of elements in the mass range 60 < A < 120. At the same time, Fe and Ni are important components of structural materials and improved neutron cross section data is relevant in the design of new nuclear systems. [...]
2011
- Published in : J. Korean Phys. Soc. 59 (2011) 2106-2109
In : International Conference on Nuclear Data for Science and Technology 2010, Jeju Island, Republic Of Korea, 26 - 30 Apr 2010, pp.2106-2109
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5.
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Improved Neutron Capture Cross Section Measurements with the n_TOF Total Absorption Calorimeter
/ Mendoza, E (Madrid, CIEMAT) ; Prena, J (Seville U.) ; Perkowski, J (Lodz U.) ; Andriamonje, S (CERN) ; Carrapico, C (ITN, Lisbon) ; Moinul, M (INFN, Bari) ; Vannini, G (INFN, Bologna ; Bologna U.) ; Quesada, J M (Seville U.) ; Harrisopulos, S (Democritos Nucl. Res. Ctr.) ; Milazzo, P M (INFN, Trieste) et al.
The n\_TOF collaboration operates a Total Absorption Calorimeter (TAC) {[}1] for measuring neutron capture cross-sections of low-mass and/or radioactive samples. The results obtained with the TAC have led to a substantial improvement of the capture cross sections of (237)Np and (240)Pu {[}2]. [...]
2011
- Published in : J. Korean Phys. Soc. 59 (2011) 1813-1816
In : International Conference on Nuclear Data for Science and Technology 2010, Jeju Island, Republic Of Korea, 26 - 30 Apr 2010, pp.1813-1816
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6.
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Characterization of the New n_TOF Neutron Beam: Fluence, Profile and Resolution
/ Guerrero, C (Madrid, CIEMAT) ; Ventura, A (ENEA, Bologna) ; Perkowski, J (Lodz U.) ; Andriamonje, S (CERN) ; Carrapico, C (ITN, Lisbon) ; Moinul, M (INFN, Bari) ; Vannini, G (INFN, Bologna ; Bologna U.) ; Quesada, J M (Seville U.) ; Harrisopulos, S (Democritos Nucl. Res. Ctr.) ; Milazzo, P M (INFN, Trieste) et al.
After a halt of four years, the n\_TOF spallation neutron facility at CERN has resumed operation in November 2008 with a new spallation target characterized by an improved safety and engineering design, resulting in a more robust overall performance and efficient cooling. The first measurement during the 2009 run has aimed at the full characterization of the neutron beam. [...]
2011
- Published in : J. Korean Phys. Soc. 59 (2011) 1624-1627
In : International Conference on Nuclear Data for Science and Technology 2010, Jeju Island, Republic Of Korea, 26 - 30 Apr 2010, pp.1624-1627
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7.
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Optical potentials for alpha particles on heavy nuclei around the Coulomb barrier
/ Avrigeanu, M (Bucharest, IFIN-HH) ; von Oertzen, W (Freie U., Berlin) ; Obreja, A C (Bucharest, IFIN-HH) ; Roman, F L (Bucharest, IFIN-HH) ; Avrigeanu, V (Bucharest, IFIN-HH)
A previously semi-microscopic analysis of the -particle interaction with 50 A 124 target nuclei at energies from 8 to 50 MeV, based on the Double Folding Model (DFM) for the real part of the optical potential, is extended to heavy nuclei A 132 nuclei. The energy-dependent phenomenological imaginary part of the corresponding semi-microscopic optical model potential was obtained by taking into account also the dispersive correction to the DFM real potential, and used within a concurrent complete phenomenological analysis of the same data basis. [...]
2010
Fulltext: PDF;
In : 12th International Conference on Nuclear Reaction Mechanisms, Villa Monastero, Varenna, Italy, 15 - 19 Jun 2009, pp.159-166
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8.
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Neutron capture cross section measurements of $^{238}$U, $^{241}$Am and $^{243}$Am at n_TOF
/ Andriamonje, S (CERN) ; Andrzejewski, J ; Audouin, L ; Avrigeanu, V ; Becvar, F ; Belloni, F ; Berthier, B ; Berthoumieux, E ; Brugger, M (CERN) ; Calviño, F et al.
CERN-INTC-2009-025 ; INTC-P-269.
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2009.
Fulltext
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9.
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Complementary optical-potential analysis of alpha-particle elastic scattering and induced reactions at low energies
/ Avrigeanu, M (Bucharest, IFIN-HH) ; Obreja, A C (Bucharest, IFIN-HH) ; Roman, F L (Bucharest, IFIN-HH) ; Avrigeanu, V (Bucharest, IFIN-HH) ; von Oertzen, W (Freie U. Berlin ; Hahn-Meitner Inst.)
A previously derived semi-microscopic analysis based on the Double Folding Model, for alpha-particle elastic scattering on A~100 nuclei at energies below 32 MeV, is extended to medium mass A ~ 50-120 nuclei and energies from ~13 to 50 MeV. [...]
arXiv:0808.0566.
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2008. - 46 p.
Preprint
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10.
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On the a-Particle Semi-Microscopic Optical Potential at Low Energies
/ Avrigeanu, M ; Roman, F L ; Avrigeanu, V ; Oertzen, W
2006
- Published in : PoS: NIC-IX (2006) , pp. 072
Published version from PoS: PDF;
In : 9th International Symposium on Nuclear Astrophysic: Nuclei in the Cosmos, CERN, Geneva, Switzerland, 25 - 30 Jun 2006, pp.072
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