NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = D.Vanleeuw Found 9 matches. 2022BE33 Eur.Phys.J. A 58, 227 (2022) F.Belloni, R.Eykens, J.Heyse, C.Matei, A.Moens, R.Nolte, A.J.M.Plompen, S.Richter, G.Sibbens, D.Vanleeuw, R.Wynants Neutron induced fission cross section measurements of 240Pu and 242Pu relative to the neutron-proton scattering cross section at 2.5 and 14.8 MeV NUCLEAR REACTIONS 240,242Pu(n, F), 1H(n, n), E=2.51, 14.83 MeV; measured reaction products, En, In; deduced fission σ and uncertainties. Comparison with available data, ENDF/B-VIII.0, JEFF-3.3, JEFF-3.2 and JENDL-4 libraries. The 3.7 MV Van De Graaff linear accelerator at Physikalisch-Technische Bundesanstalt (PTB) in Braunschweig.
doi: 10.1140/epja/s10050-022-00858-9
2018BE29 Phys.Rev. C 98, 034612 (2018) G.Belier, J.Aupiais, G.Sibbens, A.Moens, D.Vanleeuw High-precision spontaneous fission branching-ratio measurements for 240, 242Pu and 252Cf isotopes RADIOACTIVITY 240,242Pu, 252Cf(SF); measured particle spectra, two-dimensional (2D)-identification histogram, precise SF half-lives and SF branching ratios using organic liquid scintillators. Discussed uncertainty budget. Comparison with previous experimental and evaluated half-lives.
doi: 10.1103/PhysRevC.98.034612
2017GA12 Phys.Rev. C 95, 064609 (2017) A.Gatera, T.Belgya, W.Geerts, A.Gook, F.-J.Hambsch, M.Lebois, B.Maroti, A.Moens, A.Oberstedt, S.Oberstedt, F.Postelt, L.Qi, L.Szentmiklosi, G.Sibbens, D.Vanleeuw, M.Vidali, F.Zeiser Prompt-fission γ-ray spectral characteristics from 239Pu(nth, f) NUCLEAR REACTIONS 239Pu(n, F), E=thermal and slow; measured fission-fragment distribution, Eγ, Iγ, time-of-flight (TOF) spectra for different γ-ray energies, prompt-fission γ-ray spectra (PFGS) at the 10 MW research reactor of Budapest Neutron; deduced average γ-ray multiplicity M, average energy, and the total energy. Comparison with evaluated nuclear data in ENDF/B-VII.1.
doi: 10.1103/PhysRevC.95.064609
2016OB01 Phys.Rev. C 93, 054603 (2016) S.Oberstedt, A.Oberstedt, A.Gatera, A.Gook, F.-J.Hambsch, A.Moens, G.Sibbens, D.Vanleeuw, M.Vidali Prompt fission γ-ray spectrum characteristics from 240Pu (sf) and 242Pu (sf) RADIOACTIVITY 240,242Pu(SF); measured prompt fission γ spectra (PFGS), Eγ, Iγ, (fission fragments)γ-coin at EC-JRC-IRMM; deduced average energy per photon, average multiplicity Mγ, average total γ-ray energy release per fission. Comparison with prompt fission γ spectrum from 241Pu(n, F), E=thermal, and with systematic trends.
doi: 10.1103/PhysRevC.93.054603
2015SA27 Phys.Rev. C 92, 014620 (2015) P.Salvador-Castineira, T.Brys, R.Eykens, F.-J.Hambsch, A.Gook, A.Moens, S.Oberstedt, G.Sibbens, D.Vanleeuw, M.Vidali, C.Pretel Neutron-induced fission cross section of 240Pu from 0.5 MeV to 3 MeV NUCLEAR REACTIONS 240Pu(n, F), E=0.5-3 MeV; measured fission fragment spectra using Atwin Frisch-grid ionization chamber (TFGIC) for fission fragments at Van de Graaff accelerator facility of JRC-IRMM, fission σ(E). 235U, 237Np, 238U(n, F), E=0.5-3.0 MeV; cross sections used as references for 240Pu(n, F) reaction, and benchmarked. Comparison with previous measurements, and with ENDF/B-VII.1, JEFF 3.1 and JENDL 4.0 evaluated libraries. Relevance to needs for future generation of nuclear power plants (GEN-IV).
doi: 10.1103/PhysRevC.92.014620
2015SA41 Phys.Rev. C 92, 044606 (2015) P.Salvador-Castineira, T.Brys, R.Eykens, F.-J.Hambsch, A.Gook, A.Moens, S.Oberstedt, G.Sibbens, D.Vanleeuw, M.Vidali, C.Pretel Neutron-induced fission cross sections of 242Pu from 0.3 MeV to 3 MeV NUCLEAR REACTIONS 242Pu, 237Np, 235,238U(n, F), E=0.3-3 MeV; measured fission fragments, σ(E) ratios using data for 237Np, 235,238U as reference standards. Fission fragments detected using a twin Frisch-grid ionization chamber (TFGIC) at Van de Graaff accelerator of the JRC-IRMM, Geel. Comparison with previous experimental data, and with ENDF/B-VII.1, JEFF 3.1 and JENDL 4.0 evaluated libraries. High-priority request list of OECD-NEA, and relevance to next generation of nuclear power plants (GEN-IV) in the fast-neutron energy domain.
doi: 10.1103/PhysRevC.92.044606
2014HE16 Nucl.Data Sheets 119, 407 (2014) J.Heyse, M.Anastasiou, R.Eykens, A.Moens, A.J.M.Plompen, P.Schillebeeckx, G.Sibbens, D.Vanleeuw, R.Wynants Characterization of 235U Targets for the Development of a Secondary Neutron Fluence Standard
doi: 10.1016/j.nds.2014.08.114
2014OB05 Phys.Rev. C 90, 024618 (2014) S.Oberstedt, R.Billnert, T.Belgya, T.Brys, W.Geerts, C.Guerrero, F.-J.Hambsch, Z.Kis, A.Moens, A.Oberstedt, G.Sibbens, L.Szentmiklosi, D.Vanleeuw, M.Vidali High-precision prompt-γ-ray spectral data from the reaction 241Pu(nth, f) NUCLEAR REACTIONS 241Pu(n, F), E=thermal; measured prompt fission Eγ, Iγ (PFGS) at 10 MW research reactor of the Budapest Neutron Centre; deduced γ-ray multiplicity, average and total γ energy. Comparison with ENDF/B-VII.1 evaluation. Discussed underestimation of the prompt-γ heating in nuclear reactors.
doi: 10.1103/PhysRevC.90.024618
2013SA65 Phys.Rev. C 88, 064611 (2013) P.Salvador-Castineira, T.Brys, R.Eykens, F.-J.Hambsch, A.Moens, S.Oberstedt, G.Sibbens, D.Vanleeuw, M.Vidali, C.Pretel Highly accurate measurements of the spontaneous fission half-life of 240, 242Pu RADIOACTIVITY 240,242Pu(SF); measured fission fragments by Atwin Frisch-grid ionization chamber (TFGIC) at JRC-IRMM facility, T1/2 for SF decay mode. Comparison with previous measurements and evaluations. GEANT4 simulations. Relevance to improved neutron-induced fission cross sections of 240,242Pu in the fast neutron spectrum range.
doi: 10.1103/PhysRevC.88.064611
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