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RESULTS OF DTAS CAMPAIGN AT IGISOL: OVERVIEW.
Publication Type: Conference
Source(s): Acta Physica Polonica B, Proceedings Supplement. 2023, Vol. 16 Issue 4, p1-5. 5p.
Abstract: The β decays of more than twenty fission fragments were measured in the first experiments with radioactive-ion beams employing the Decay Total Absorption γ-ray Spectrometer. In this work, we summarize the main results obtained so far from this experime...
NUCLEAR FISSION STUDIES IN INVERSE KINEMATICS WITH THE R³B SETUP AT THE GSI-FAIR FACILITY.
Publication Type: Conference
Source(s): Acta Physica Polonica B, Proceedings Supplement. 2023, Vol. 16 Issue 4, p1-4. 4p.
Abstract: Despite the recent experimental and theoretical progress in the investigation of the nuclear fission process, a complete description still represents a challenge in nuclear physics because it involves the coupling between intrinsic and collective degre...
THE LANGEVIN APPROACH FOR FISSION OF HEAVY AND SUPER-HEAVY NUCLEI.
Publication Type: Conference
Source(s): Acta Physica Polonica B, Proceedings Supplement. 2023, Vol. 16 Issue 4, p1-10. 10p.
Abstract: In this contribution, we present the main relations of the Langevin approach to the description of fission or fusion--fission reactions. The results of Langevin calculations are demonstrated for the mass distributions of fission fragments of super-heav...
FISSION FRAGMENTS MASS YIELDS OF ACTINIDE NUCLEI.
Publication Type: Conference
Source(s): Acta Physica Polonica B, Proceedings Supplement. 2023, Vol. 16 Issue 4, p1-10. 10p.
Abstract: A new, rapidly convergent Fourier over spheroid parametrization is developed to describe the shape of a fissioning nucleus: its elongation, nonaxiality and left--right asymmetry, and neck formation. The 4D Potential Energy Surfaces (PES) of even--even ...
Independent isotopic fission yields of 252Cf spontaneous fission via mass measurements at the FRS Ion Catcher.
Publication Type: Conference
Source(s): EPJ Web of Conferences. 5/26/2023, Vol. 284, p1-7. 7p.
Abstract: We present first preliminary results of a novel method for measuring independent isotopic fission yields (IIFYs) of spontaneous fission (SF) via direct mass measurements, at the FRS Ion Catcher (FRS-IC) at GSI. Fission products were generated from a 25...
Processing of JEFF nuclear data libraries for the SCALE Code System and testing with criticality benchmark experiments.
Publication Type: Conference
Source(s): EPJ Web of Conferences. 5/26/2023, Vol. 284, p1-5. 5p.
Abstract: In the last years, a new version of the Joint Evaluated Fission and Fusion File (JEFF) data library, namely JEFF-3.3, has been released with relevant updates in the neutron reaction, thermal neutron scattering and covariance sub-libraries. In the frame...
Measurement of the fission yield of 136Cs in the 239Pu(nth,f) reaction.
Publication Type: Conference
Source(s): EPJ Web of Conferences. 5/26/2023, Vol. 284, p1-4. 4p.
Abstract: A recent experimental campaign performed at the LOHENGRIN spectrometer at ILL aimed at measuring the independent fission yield of 136Cs in the 239Pu(nth,f) reaction. This nuclide can have an important contribution to the total dose rate coming from spe...
From fission yield measurements to evaluation: Propositions of 235U(nth,f) Fission Yields for JEFF-4.
Publication Type: Conference
Source(s): EPJ Web of Conferences. 5/26/2023, Vol. 284, p1-9. 9p.
Abstract: The study of fission yields has a major impact on the characterization and understanding of the fission process and its applications. The fission products have a direct influence on the amount of neutron poisons that limit the fuel burnup and on the ev...
Comprehensive investigation of fission yields by using spallation- and (p,2p)- induced fission reactions in inverse kinematics.
Publication Type: Conference
Source(s): EPJ Web of Conferences. 5/26/2023, Vol. 284, p1-4. 4p.
Abstract: In the last decades, measurements of spallation, fragmentation and Coulex induced fission reactions in inverse kinematics have provided valuable data to accurately investigate the fission dynamics and nuclear structure at large deformations of a large va...
Influence of energy partition in fission and pre-neutron fragment distributions on post-neutron fragment yields, application for 235U(nth,f).
Publication Type: Conference
Source(s): EPJ Web of Conferences. 5/26/2023, Vol. 284, p1-4. 4p.
Abstract: The key role in the calculation of post-neutron fragment yields (independent FPY) is played by the pre-neutron fragment distributions Y(A,TKE) and the prompt neutron multiplicity (calculated in the frame of a prompt emission model). The knowledge of ex...