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2023GJ01      Phys.Rev. C 108, 064602 (2023)

D.Gjestvang, J.N.Wilson, A.Al-Adili, S.Siem, Z.Gao, J.Randrup, D.Thisse, M.Lebois, N.Jovancevic, R.Canavan, M.Rudigier, D.Etasse, R.-B.Gerst, E.Adamska, P.Adsley, A.Algora, C.Belvedere, J.Benito, G.Benzoni, A.Blazhev, A.Boso, S.Bottoni, M.Bunce, R.Chakma, N.Cieplicka-Orynczak, S.Courtin, M.L.Cortes, P.Davies, C.Delafosse, M.Fallot, B.Fornal, L.Fraile, A.Gottardo, V.Guadilla, G.Hafner, K.Hauschild, M.Heine, C.Henrich, I.Homm, F.Ibrahim, L.W.Iskra, P.Ivanov, S.Jazrawi, A.Korgul, P.Koseoglou, T.Kroll, T.Kurtukian-Nieto, S.Leoni, J.Ljungvall, A.Lopez-Martens, R.Lozeva, I.Matea, K.Miernik, J.Nemer, S.Oberstedt, W.Paulsen, M.Piersa-Silkowska, Y.Popovitch, C.Porzio, L.Qi, P.H.Regan, K.Rezynkina, V.Sanchez-Tembleque, C.Schmitt, P.-A.Soderstrom, C.Surder, G.Tocabens, V.Vedia, D.Verney, N.Warr, B.Wasilewska, J.Wiederhold, M.Yavahchova, S.Ziliani

Examination of how properties of a fissioning system impact isomeric yield ratios of the fragments

doi: 10.1103/PhysRevC.108.064602
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2023TH05      Eur.Phys.J. A 59, 153 (2023)

D.Thisse, M.Lebois, D.Verney, J.N.Wilson, N.Jovancevic, M.Rudigier, R.Canavan, D.Etasse, P.Adsley, A.Algora, M.Babo, K.Belvedere, J.Benito, G.Benzoni, A.Blazhev, A.Boso, S.Bottoni, M.Bunce, R.Chakma, N.Cieplicka-Orynczak, S.Courtin, M.L.Cortes, P.Davies, C.Delafosse, M.Fallot, B.Fornal, L.Fraile, D.Gjestvang, A.Gottardo, V.Guadilla, R.-B.Gerst, G.Hafner, K.Hauschild, M.Heine, C.Henrich, I.Homm, J.Hommet, F.Ibrahim, L.W.Iskra, P.Ivanov, S.Jazrawi, A.Korgul, P.Koseoglou, T.Kroll, T.Kurtukian-Nieto, L.Le Meur, S.Leoni, J.Ljungvall, A.Lopez-Martens, R.Lozeva, I.Matea, K.Miernik, J.Nemer, S.Oberstedt, W.Paulsen, M.Piersa-Silkowska, W.Poklepa, Y.Popovitch, C.Porzio, L.Qi, D.Ralet, P.H.Regan, D.Reygadas Tello, K.Rezynkina, V.Sanchez-Tembleque, S.Siem, C.Schmitt, P.-A.Soderstrom, K.Solak, C.Surder, G.Tocabens, V.Vedia, N.Warr, B.Wasilewska, J.Wiederhold, M.Yavahchova, F.Zeiser, S.Ziliani

Study of N = 50 gap evolution around Z = 32: new structure information for 82Ge

NUCLEAR REACTIONS 232Th(n, F)84Se/82Ge, E fast; measured reaction products, Eγ, Iγ; deduced γ-ray energies and intensities, J, π, partial level scheme. Comparison with available data. LICORNE directional neutron source at the ALTO facility of IJCLab.

doi: 10.1140/epja/s10050-023-01051-2
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2023WE04      Phys.Rev. C 107, 034313 (2023)

F.Weber, T.E.Albrecht-Schonzart, S.O.Allehabi, S.Berndt, M.Block, H.Dorrer, C.E.Dullmann, V.A.Dzuba, J.G.Ezold, V.V.Flambaum, V.Gadelshin, S.Goriely, A.Harvey, R.Heinke, S.Hilaire, M.Kaja, T.Kieck, N.Kneip, U.Koster, J.Lantis, C.Mokry, D.Munzberg, S.Nothhelfer, S.Oberstedt, S.Peru, S.Raeder, J.Runke, V.Sonnenschein, M.Stemmler, D.Studer, P.Thorle-Pospiech, H.Tomita, N.Trautmann, S.Van Cleve, J.Warbinek, K.Wendt

Nuclear moments and isotope shifts of the actinide isotopes 249-253Cf probed by laser spectroscopy

NUCLEAR MOMENTS 249,250,251,252,253Cf; measured hyperfine spectra; deduced energy positions of three atomic ground-state transitions, isotope shifts. 249,251,253Cf; deduced nuclear magnetic dipole moments, hyperfine parameters. 249,253Cf; deduced spectroscopic quadrupole moments. Comparison with previous experimental data. Laser resonance ionisation high-resolution spectroscopy. Comparison to theoretical estimations. RISIKO mass separator at Johannes Gutenberg University Mainz.

doi: 10.1103/PhysRevC.107.034313
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2022LE06      Phys.Rev. C 105, 045801 (2022)

B.Lehnert, M.Hult, G.Lutter, G.Marissens, S.Oberstedt, H.Stroh, J.Kotila, A.Oberstedt, K.Zuber

Constraints on partial half-lives of 136Ce and 138Ce double electron captures

RADIOACTIVITY 136Ce(2EC), (β+EC); 138Ce(2EC); measured Eγ, Iγ; deduced constraints on the T1/2 of various decay modes including neutrinoless (0νKL and 0νLL to the ground state for 138Ce, 0νKL, 0νLL and 0νKK to ground and excited states for 136Ce). CeBr3 crystal with mass 4381 g measured with HPGe coaxial detector over three years at the HADES underground laboratory. Comparison to other experimental data and theoretical predictions.

doi: 10.1103/PhysRevC.105.045801
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2021GJ01      Phys.Rev. C 103, 034609 (2021)

D.Gjestvang, S.Siem, F.Zeiser, J.Randrup, R.Vogt, J.N.Wilson, F.Bello-Garrote, L.A.Bernstein, D.L.Bleuel, M.Guttormsen, A.Gorgen, A.C.Larsen, K.L.Malatji, E.F.Matthews, A.Oberstedt, S.Oberstedt, T.Tornyi, G.M.Tveten, A.S.Voyles

Excitation energy dependence of prompt fission γ-ray emission from 241Pu

NUCLEAR REACTIONS 240Pu(d, pF)241Pu*, E=13.5 MeV; measured outgoing protons using SiRi, a silicon ΔE-E detector, fission fragments using NIFF, consisting of four parallel plate avalanche counters (PPACs), prompt fission γ rays (PFG), (particle)γ-coin using Oslo Scintillator Array (OSCAR) of 30 LaBr3:Ce scintillators for γ radiation at the Oslo Cyclotron Laboratory; deduced average total PFG multiplicity per fission, average total PFG energy released per fission, and the average PFG energy in the excitation range of 5.75-8.25 MeV. Comparison with simulations using the fission model FREYA, with previous experimental results, and evaluation in ENDF/B-VIII.0.

doi: 10.1103/PhysRevC.103.034609
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2021HA13      Phys.Rev. C 103, 034317 (2021)

G.Hafner, R.Lozeva, H.Naidja, M.Lebois, N.Jovancevic, D.Thisse, D.Etasse, R.L.Canavan, M.Rudigier, J.N.Wilson, E.Adamska, P.Adsley, M.Babo, K.Belvedere, J.Benito, G.Benzoni, A.Blazhev, A.Boso, S.Bottoni, M.Bunce, R.Chakma, N.Cieplicka-Orynczak, S.M.Collins, M.L.Cortes, P.J.Davies, C.Delafosse, M.Fallot, B.Fornal, L.M.Fraile, R.-B.Gerst, D.Gjestvang, V.Guadilla, K.Hauschild, C.Henrich, I.Homm, F.Ibrahim, L.W.Iskra, S.Jazwari, J.Jolie, A.Korgul, P.Koseoglou, Th.Kroll, T.Kurtukian-Nieto, L.Le-meur, J.Ljungvall, A.Lopez-Martens, I.Matea, L.Matthieu, K.Miernik, J.Nemer, S.Oberstedt, W.Paulsen, M.Piersa, Y.Popovitch, C.Porzio, L.Qi, D.Ralet, P.H.Regan, D.Reygadas Tello, K.Rezynkina, V.Sanchez, C.Schmitt, P.-A.Soderstrom, C.Surder, G.Tocabens, V.Vedia, D.Verney, N.Warr, B.Wasilewska, J.Wiederhold, M.S.Yavahchova, F.Zeiser, S.Ziliani

Spectroscopy and lifetime measurements in 134, 136, 138Te isotopes and implications for the nuclear structure beyond N = 82

NUCLEAR REACTIONS 238U(n, F)134Te/136Te/138Te, E AP 1.7 MeV; measured Eγ, Iγ, γγ-coin, half-lives of first 2+, 4+ and 6+ states in 134,136,138Te and (12+) isomer in 134Te by γγ(t) fast timing technique using HPGe and LaBr3(Ce) detectors at the ALTO facility of IJCLab with the LICORNE neutron source and the hybrid ν-ball spectrometer. 134,136,138Te; deduced levels, J, π, B(E2), mixed symmetry state, configurations. Comparison with previous measurements, and with state-of-the-art shell-model calculations.

NUCLEAR STRUCTURE 134,136,138Te; calculated levels, J, π for 136,138Te, decomposition of the wave functions for several yrast states in all three nuclides. Large-scale shell-model calculations. Comparison with experimental data.

doi: 10.1103/PhysRevC.103.034317
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2021HA28      Phys.Rev. C 104, 014316 (2021)

G.Hafner, R.Lozeva, H.Naidja, M.Lebois, N.Jovancevic, D.Thisse, D.Etasse, R.L.Canavan, M.Rudigier, J.N.Wilson, E.Adamska, P.Adsley, A.Algora, M.Babo, K.Belvedere, J.Benito, G.Benzoni, A.Blazhev, A.Boso, S.Bottoni, M.Bunce, R.Chakma, N.Cieplicka-Orynczak, S.M.Collins, M.L.Cortes, P.J.Davies, C.Delafosse, M.Fallot, L.M.Fraile, R.-B.Gerst, D.Gjestvang, V.Guadilla, K.Hauschild, C.Henrich, I.Homm, F.Ibrahim, L.W.Iskra, S.Jazwari, A.Korgul, P.Koseoglou, Th.Kroll, T.Kurtukian-Nieto, L.Le-meur, S.Leoni, J.Ljungvall, A.Lopez-Martens, L.Matthieu, K.Miernik, J.Nemer, S.Oberstedt, W.Paulsen, M.Piersa-Silkowska, Y.Popovitch, C.Porzio, L.Qi, D.Ralet, P.H.Regan, D.Reygadas Tello, K.Rezynkina, V.Sanchez-Tembleque, C.Schmitt, P.-A.Soderstrom, C.Surder, G.Tocabens, V.Vedia, D.Verney, N.Warr, B.Wasilewska, J.Wiederhold, M.S.Yavahchova, F.Zeiser, S.Ziliani

First lifetime investigations of N ≥ 82 iodine isotopes: The quest for collectivity

NUCLEAR REACTIONS 238U(n, F)135I/137I/139I, E ∼ 1.7 MeV from LICORNE neutron source at the ALTO facility of IJCLab; measured Eγ, Iγ, γγ-coin, level T1/2 by γγ(t) using ν-ball spectrometer of HPGe and LaBr3(Ce) detectors. 135,137,139I; deduced high-spin levels, J, π, B(E2), B(M1), B(E3), configurations; calculated occupations for the most prominent proton or neutron-proton configurations. Comparison with previous experimental data, and with large scale shell-model (LSSM) calculations using N3LOP (SM-I) and Kuo-Herling (SM-II) effective interactions. Systematics of B(E2) for yrast states of 134,136,138Te and 135,137,139I.

doi: 10.1103/PhysRevC.104.014316
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2021ME18      Eur.Phys.J. A 57, 258 (2021)

Z.Medic, N.Jovancevic, D.Maletic, Y.Teterev, S.Mitrofanov, A.Belov, M.Krmar, M.Hult, S.Oberstedt

The application of the unfolding technique for determination of photo-nuclear reaction cross-section with an example on the 115In(γ, γ')115mIn reaction

NUCLEAR REACTIONS 115In(γ, γ'), E<9.6 MeV; measured reaction products, Eγ, Iγ; deduced isomeric σ. Comparison with TALYS 1.9 calculations. MT25 Microtron, JINR, Dubna.

doi: 10.1140/epja/s10050-021-00567-9
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2021OB01      Phys.Rev. C 104, 024611 (2021)

A.Oberstedt, S.Oberstedt

Exploring the fission barrier of 235U

NUCLEAR REACTIONS 234U(n, F), E=0.95, 1.27 MeV; analyzed earlier experimental data in 2007Ob02 for cross sections and the shape isomer in 235U; deduced post-neutron kinetic energy spectrum of fission fragments, two-dimensional plot of isomeric fission events as functions of time and kinetic energy, total kinetic energy (TKE) of fission fragments and compared to results from GEF calculations. 234U(n, F), E=0.2-5.0 MeV; analyzed previous experimental data for ratio of mode-weighted σ(E), fission barrier parameters and outer fission barrier for 235U, and compared to values in literature. 235mU; deduced revised half-life of the shape or fission isomer.

doi: 10.1103/PhysRevC.104.024611
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2021TR05      Phys.Lett. B 817, 136293 (2021)

M.Travar, V.Piau, A.Gook, O.Litaize, J.Nikolov, A.Oberstedt, S.Oberstedt, J.Enders, M.Peck, W.Geerts, M.Vidali

Experimental information on mass- and TKE-dependence of the prompt fission γ-ray multiplicity

RADIOACTIVITY 252Cf(SF); measured decay products, Eγ, Iγ; deduced mass-dependent average prompt fission γ-ray multiplicity, saw-tooth like shape of multiplicity-mass correlation.

doi: 10.1016/j.physletb.2021.136293
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2021WI12      Nature(London) 590, 566 (2021)

J.N.Wilson, D.Thisse, M.Lebois, N.Jovancevic, D.Gjestvang, R.Canavan, M.Rudigier, D.Etasse, R.-B.Gerst, L.Gaudefroy, E.Adamska, P.Adsley, A.Algora, M.Babo, K.Belvedere, J.Benito, G.Benzoni, A.Blazhev, A.Boso, S.Bottoni, M.Bunce, R.Chakma, N.Cieplicka-Orynczak, S.Courtin, M.L.Cortes, P.Davies, C.Delafosse, M.Fallot, B.Fornal, L.Fraile, A.Gottardo, V.Guadilla, G.Hafner, K.Hauschild, M.Heine, C.Henrich, I.Homm, F.Ibrahim, L.W.Iskra, P.Ivanov, S.Jazrawi, A.Korgul, P.Koseoglou, T.Kroll, T.Kurtukian-Nieto, L.Le Meur, S.Leoni, J.Ljungvall, A.Lopez-Martens, R.Lozeva, I.Matea, K.Miernik, J.Nemer, S.Oberstedt, W.Paulsen, M.Piersa, Y.Popovitch, C.Porzio, L.Qi, D.Ralet, P.H.Regan, K.Rezynkina, V.Sanchez-Tembleque, S.Siem, C.Schmitt, P.-A.Suderstrom, C.Surder, G.Tocabens, V.Vedia, D.Verney, N.Warr, B.Wasilewska, J.Wiederhold, M.Yavahchova, F.Zeiser, S.Ziliani

Angular momentum generation in nuclear fission

NUCLEAR REACTIONS 232Th(n, F), E ∼ 1.9 MeV; measured reaction products, Eγ, Iγ. 82,84Ge, 84,86,88Se, 88,90,92,94Kr, 92,94,96,98Sr, 98,100Zr, 130,132Sn, 132,134,136,138Te, 138,140,142Xe, 142,144,146Ba, 148,150Ce; deduced average J, 0+ side-feeding, fission yields, the intensity ratio of the transition from the first excited state to the ground state, and the transition(s) feeding the first excited state, dependence of average spin on fragment mass. Comparison with statistical theory, 233Th.

NUCLEAR REACTIONS 238U(n, F), E ∼ 1.9 MeV; measured reaction products, Eγ, Iγ. 82Ge, 84,86,88Se, 88,90,92,94Kr, 94,96,98Sr, 98,100,102,104Zr, 102,104Mo, 130,132,134Sn, 132,134,136,138Te, 138,140,142Xe, 142,144,146,148Ba, 148,150Ce; deduced average J, 0+ side-feeding, fission yields, the intensity ratio of the transition from the first excited state to the ground state, and the transition(s) feeding the first excited state, dependence of average spin on fragment mass. Comparison with statistical theory, 239U.

RADIOACTIVITY 252Cf(SF); measured decay products, Eγ, Iγ, TOF. 94,96,98Sr, 98,100,102,104Zr, 102,104,106,108Mo, 108,110,112Ru, 112,114,116Pd, 130,132Sn, 134,136Te, 138,140,142Xe, 142,144,146Ba, 148,150Ce, 152,154Nd; deduced average J, 0+ side-feeding, fission yields, dependence of average spin on fragment mass. Comparison with statistical theory.

doi: 10.1038/s41586-021-03304-w
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2020AD05      Acta Phys.Pol. B51, 843 (2020)

E.Adamska, A.Korgul, A.Fijalkowska, K.Miernik, M.Piersa, R.Canavan, D.Etasse, N.Jovancevic, M.Lebois, M.Rudigier, D.Thisse, J.N.Wilson, P.Adsley, A.Algora, M.Babo, K.Belvedere, J.Benito, A.Blazhev, G.Benzoni, A.Boso, S.Bottoni, M.Bunce, R.Chakma, N.Cieplicka-Orynczak, M.Ciemala, S.Collins, L.Cortes, P.Davies, C.Delafosse, M.Fallot, B.Fornal, L.M.Fraile, R.-B.Gerst, D.Gjestvang, A.Gottardo, V.Guadilla, G.Hafner, K.Hauschild, M.Heine, C.Henrich, I.Homm, F.Ibrahim, L.W.Iskra, P.Koseoglou, T.Kroll, T.Kurtukian Nieto, L.Le-Meur, S.Leoni, J.Ljungvall, A.Lopez-Martens, R.Lozeva, I.Matea, J.Nemer, S.Oberstedt, W.Paulsen, Y.Popovitch, L.Qi, D.Ralet, P.H.Regan, D.Reygadas Tello, K.Rezynkina, V.Sanchez-Tembleque, C.Schmitt, P-A.Soderstrom, C.Surder, G.Tocabens, V.Vedia, D.Verney, N.Warr, B.Wasilewska, M.Yavahchova, F.Zeiser

γ-ray Spectroscopy of 85Se Produced in 232Th Fission

doi: 10.5506/APhysPolB.51.843
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2020AL22      Phys.Rev. C 102, 064610 (2020)

A.Al-Adili, D.Tarrio, K.Jansson, V.Rakopoulos, A.Solders, S.Pomp, A.Gook, F.-J.Hambsch, S.Oberstedt, M.Vidali

Prompt fission neutron yields in thermal fission of 235U and spontaneous fission of 252Cf

NUCLEAR REACTIONS 235U(n, F), E=thermal; measured fission fragments, E(n), I(n), (fission fragment)n-coin using a Twin Frisch-Grid Ionization Chamber (TFGIC) and two liquid scintillation detectors at the 7 MV Van de Graaff facility in JRC-Geel; deduced mass yields and two-dimensional mass versus total kinetic energy (TKE) distributions, average prompt fission neutron spectra (PFNS), contribution from forward and backward neutron-fragment coincidences, preneutron emission mass yields, TKE distributions versus preneutron emission mass, prompt-fission neutron yield as a function of preneutron mass and TKE, neutron spectrum in the center-of-mass system as a function of fragment mass. Detailed Fluka simulations, and comparison with data from SCINTIA neutron array, other experimental results, and Wahl evaluation. Need for a new evaluation of the prompt-fission neutron multiplicity.

RADIOACTIVITY 252Cf(SF); measured fission fragments, E(n), I(n), (fission fragment)n-coin using a Twin Frisch-Grid Ionization Chamber (TFGIC) and two liquid scintillation detectors at the 7 MV Van de Graaff facility in JRC-Geel; deduced mass distributions, with and without neutron coincidence, prompt-fission neutrons as a function of fragment mass and total kinetic energy (TKE), neutron spectrum in the laboratory system, kinetic energy distributions, average prompt fission neutron spectra (PFNS), contribution from forward and backward neutron-fragment coincidences, preneutron emission mass yields, TKE distributions versus preneutron emission mass, prompt-fission neutron yield as a function of preneutron mass and TKE, average neutron multiplicity as function of mass number and TKE, neutron spectrum in the center-of-mass system as a function of fragment mass. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.102.064610
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23764.


2020CA03      Phys.Rev. C 101, 024313 (2020)

R.L.Canavan, M.Rudigier, P.H.Regan, M.Lebois, J.N.Wilson, N.Jovancevic, P.-A.Soderstrom, S.M.Collins, D.Thisse, J.Benito, S.Bottoni, M.Brunet, N.Cieplicka-Orynczak, S.Courtin, D.T.Doherty, L.M.Fraile, K.Hadynska-Klek, G.Hafner, M.Heine, L.W.Iskra, V.Karayonchev, A.Kennington, P.Koseoglou, G.Lotay, G.Lorusso, M.Nakhostin, C.R.Nita, S.Oberstedt, Zs.Podolyak, L.Qi, J.-M.Regis, V.Sanchez-Tembleque, R.Shearman, V.Vedia, W.Witt

Half-life measurements in 164, 166Dy using γ-γ fast-timing spectroscopy with the ν-Ball spectrometer

NUCLEAR REACTIONS 164Dy(18O, 18O'), E=71, 76, 80 MeV pulsed beam; 164Dy(18O, 16O)166Dy, E=78 MeV; measured Eγ, Iγ, level half-lives by γγ(t) fast-timing triple coincidence method using ν-Ball with 24 HPGe clover detectors, ten coaxial HPGe detectors, and 20 LaBr3 detectors. 164,166Dy; deduced levels, J, π, B(E2), β2 and transition quadrupole moments. Comparison with values for 164Dy in the ENSDF database at NNDC.

doi: 10.1103/PhysRevC.101.024313
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Data from this article have been entered in the XUNDL database. For more information, click here.


2020GE11      Phys.Rev. C 102, 064323 (2020)

R.-B.Gerst, A.Blazhev, N.Warr, J.N.Wilson, M.Lebois, N.Jovancevic, D.Thisse, R.Canavan, M.Rudigier, D.Etasse, E.Adamska, P.Adsley, A.Algora, M.Babo, K.Belvedere, J.Benito, G.Benzoni, A.Boso, S.Bottoni, M.Bunce, R.Chakma, N.Cieplicka-Orynczak, S.Courtin, M.L.Cortes, P.Davies, C.Delafosse, M.Fallot, B.Fornal, L.M.Fraile, D.Gjestvang, A.Gottardo, V.Guadilla, G.Hafner, K.Hauschild, M.Heine, C.Henrich, I.Homm, F.Ibrahim, L.W.Iskra, P.Ivanov, S.Jazrawi, A.Korgul, P.Koseoglou, T.Kroll, T.Kurtukian-Nieto, L.Le Meur, S.Leoni, J.Ljungvall, A.Lopez-Martens, R.Lozeva, I.Matea, K.Miernik, J.Nemer, S.Oberstedt, W.Paulsen, M.Piersa, Y.Popovitch, C.Porzio, L.Qi, D.Ralet, P.H.Regan, D.Reygadas Tello, K.Rezynkina, V.Sanchez-Tembleque, C.Schmitt, P.-A.Soderstrom, C.Surder, G.Tocabens, V.Vedia, D.Verney, B.Wasilewska, J.Wiederhold, M.Yavachova, F.Zeiser, S.Ziliani

Prompt and delayed γ spectroscopy of neutron-rich 94Kr and observation of a new isomer

NUCLEAR REACTIONS 238U(n, F), E=fast neutrons from 1H(7Li, 7Be)n, E=16 MeV; measured prompt and delayed Eγ, Iγ, γγ-coin, half-life of a new isomer in 94Kr using the ν-Ball array of 24 HPGe Clover detectors, 10 coaxial HPGe detectors, all with BGO Compton shielding, and 20 LaBr3 detectors at the ALTO facility of IPN-Orsay. 94Kr; deduced levels, J, π, isomer, B(E1), B(E2), ground-state band up to 10+, two-quasiparticle neutron state for the isomer consistent with Gogny CHFB calculations. Comparison with level schemes of 92Se and 96Sr.

doi: 10.1103/PhysRevC.102.064323
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2020IL01      Eur.Phys.J. A 56, 202 (2020)

S.Ilic, N.Jovancevic, L.Daraban, H.Stroh, S.Oberstedt, M.Hult, C.Bonaldi, W.Geerts, F.-J.Hambsch, G.Lutter, G.Marissens, M.Vidali, D.Knezevic

The cross-sections for the 187Re(n, p)187W and 185Re(n, 3n)183Re reactions in the energy range between 13.08 MeV and 19.50 MeV

NUCLEAR REACTIONS 187Re(n, p), 185Re(n, 3n), E=13.08-19.5 MeV; measured reaction products, Eγ, Iγ, En, In; deduced σ. Comparison with ENDF/B-VII.0, JEFF 3.3, JEFF 3.2, BROND 3.1, JEF-2.2, JENDL, ROSFOND-2010, TENDL-2017, EAF-2010, FENDL-3.1c libraries, TALYS 1.9 and EMPIRE 3.2.3 calculations.

doi: 10.1140/epja/s10050-020-00207-8
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23723.


2020KN01      Nucl.Phys. A993, 121645 (2020)

D.Knezevic, N.Jovancevic, A.M.Sukhovoj, A.Dragic, L.V.Mitsyna, L.Szentmiklosi, T.Belgya, S.Oberstedt, M.Krmar, I.Arsenic, V.D.Cong

Study of gamma transitions and level scheme of 94Nb using the 93Nb(nth, 2γ) reaction

doi: 10.1016/j.nuclphysa.2019.121645
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Data from this article have been entered in the XUNDL database. For more information, click here.


2020OB01      Eur.Phys.J. A 56, 196 (2020)

A.Oberstedt, A.Gatera, A.Gook, S.Oberstedt

Time response and its impact on prompt fission γ-ray spectra characteristics

doi: 10.1140/epja/s10050-020-00209-6
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2020OB02      Eur.Phys.J. A 56, 236 (2020)

A.Oberstedt, M.Lebois, S.Oberstedt, L.Qi, J.N.Wilson

Prompt γ-ray characteristics from 235U(n, f) at E(bar)n = 1.7 MeV

NUCLEAR REACTIONS 235U(n, F), E=1.7 MeV; measured fission products, Eγ, Iγ; deduced prompt fission γ-ray spectra, yields. Comparison with available data.

doi: 10.1140/epja/s10050-020-00246-1
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23775.


2020QI01      Eur.Phys.J. A 56, 98 (2020)

L.Qi, C.Schmitt, M.Lebois, A.Oberstedt, S.Oberstedt, J.N.Wilson, A.Al-Adili, A.Chatillon, D.Choudhury, A.Gatera, G.Georgiev, A.Gook, B.Laurent, A.Maj, I.Matea, S.J.Rose, B.Wasilewska, F.Zeiser

Potential of prompt γ-ray ay emission studies in fast-neutron induced fission: a first step

doi: 10.1140/epja/s10050-020-00108-w
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23724.


2020RU01      Phys.Lett. B 801, 135140 (2020)

M.Rudigier, P.M.Walker, R.L.Canavan, Zs.Podolyak, P.H.Regan, P.-A.Soderstrom, M.Lebois, J.N.Wilson, N.Jovancevic, A.Blazhev, J.Benito, S.Bottoni, M.Brunet, N.Cieplicka-Orynczak, S.Courtin, D.T.Doherty, L.M.Fraile, K.Hadynska-Klek, M.Heine, L.W.Iskra, J.Jolie, V.Karayonchev, A.Kennington, P.Koseoglou, G.Lotay, G.Lorusso, M.Nakhostin, C.R.Nita, S.Oberstedt, L.Qi, J.-M.Regis, V.Sanchez-Tembleque, R.Shearman, W.Witt, V.Vedia, K.O.Zell

Multi-quasiparticle sub-nanosecond isomers in 178W

NUCLEAR REACTIONS 164Dy(18O, 4n), E71, 76, 80 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, isomeric T1/2. Fast-timing techniques.

doi: 10.1016/j.physletb.2019.135140
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Data from this article have been entered in the XUNDL database. For more information, click here.


2019JO08      Acta Phys.Pol. B50, 297 (2019)

N.Jovancevic, M.Lebois, J.N.Wilson, D.Thisse, L.Qi, I.Matea, F.Ibrahim, D.Verney, M.Babo, C.Delafosse, F.Adsley, G.Tocabens, A.Gottardo, Y.Popovitch, J.Nemer, R.Canavan, M.Rudigier, K.Belvedere, A.Boso, P.Regan, Zs.Podolyak, R.Shearman, M.Bunce, P.Inavov, S.Oberstedt, A.Lopez-Martens, K.Hauschild, J.Ljungvall, R.Chakma, R.Lozeva, P.-A.Soderstrom, A.Oberstedt, D.Etasse, D.Ralet, A.Blazhev, R.-B.Gerst, G.Hafner, N.Cieplicka-Orynczak, L.Iskra, B.Fornal, G.Benzoni, S.Leoni, S.Bottoni, C.Henrich, P.Koseoglou, J.Wiederhold, I.Homm, C.Surder, T.Kroll, D.Knezevic, A.Dragic, L.Cortes, N.Warr, K.Miernik, E.Adamska, M.Piersa, K.Rezynkina, L.Fraile, J.Benito Garcia, V.Sanchez, A.Algora, P.Davies, V.Guadilla-Gomez, M.Fallot, T.Kurtukian-Nieto, C.Schmitt, M.Heine, D.Reygadas Tello, M.Yavachova, M.Diakaki, F.Zeiser, W.Paulson, D.Gestvang

Spectroscopy of Neutron Induced Reactions with the ν-ball Spectrometer

doi: 10.5506/aphyspolb.50.297
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2019KN02      Nucl.Phys. A992, 121628 (2019)

D.Knezevic, N.Jovancevic, A.M.Sukhovoj, A.Dragic, L.V.Mitsyna, Z.Revay, C.Stieghorst, S.Oberstedt, M.Krmar, I.Arsenic, D.Maletic, D.Jokovic

Study of gamma ray transitions and level scheme of 5625Mn using the 5525Mn(nth, 2γ) reaction

NUCLEAR REACTIONS 55Mn(n, γ), E=thermal; measured reaction products, Eγ, Iγ, γγ-coin; deduced energy-resolved cascades, Sums of Amplitudes of Coincident Pulses (SACP), cascades levels, J, π, 56Mn updated level scheme, 2γ emitted. Cascade γ-ray energies compared with ENSDF. γ-γ coincidence spectrometer.

doi: 10.1016/j.nuclphysa.2019.121628
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Data from this article have been entered in the XUNDL database. For more information, click here.


2019OB01      Acta Phys.Pol. B50, 275 (2019)

A.Oberstedt, A.Gatera, A.Gook, S.Oberstedt

Systematic Studies of Fission Fragment De-excitation by Prompt γ-ray Emission

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ; deduced γ-ray multiplicity, average γ energy and total γ energy. Comparison with previous experimental data and FIFRELIN calculations.

doi: 10.5506/aphyspolb.50.275
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2019RU06      Acta Phys.Pol. B50, 661 (2019)

M.Rudigier, R.L.Canavan, P.H.Regan, P.-A.Soderstrom, M.Lebois, J.N.Wilson, N.Jovancevic, S.Bottoni, M.Brunet, N.Cieplicka-Orynczak, S.Courtin, D.T.Doherty, K.Hadynska-Klek, M.Heine, L.W.Iskra, V.Karayonchev, A.Kennington, P.Koseoglou, G.Lotay, G.Lorusso, M.Nakhostin, C.R.Nita, S.Oberstedt, Zs.Podolyak, L.Qi, J.-M.Regis, R.Shearman, P.M.Walker, W.Witt

Isomer Spectroscopy and Sub-nanosecond Half-live Determination in 178W Using the NuBALL Array

NUCLEAR REACTIONS 164Dy(18O, 4n), E=71, 76, 80 MeV; measured reaction products, Eγ, Iγ, γγ-coin; deduced γ-ray energies, J, π, isomeric T1/2, B(E2), intrinsic quadrupole moments. Centroid-shift method. NuBALL array of 24Compton suppressed HPGe Clover detectors, 10 Compton suppressed coaxial HPGe detectors and 20 LaBr3(Ce) scintillators.

doi: 10.5506/aphyspolb.50.661
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2018GO22      Phys.Rev. C 98, 044615 (2018)

A.Gook, F.-J.Hambsch, S.Oberstedt, M.Vidali

Prompt neutrons in correlation with fission fragments from 235U (n, f)

NUCLEAR REACTIONS 235U(n, F), E=thermal; measured fission fragments, spectra of prompt fission neutrons, pre-neutron fragment mass yield distribution and total kinetic energy (TKE), (fragment)n-coin, and prompt neutron multiplicity using proton recoil scintillator array for neutron detection and a position-sensitive twin ionization chamber for detection of fission fragments at the GELINA neutron time-of-flight facility of JRC-Geel; deduced integral prompt fission neutron spectrum, average energy of neutrons and average prompt neutron multiplicity as a function of the fission fragment mass, fission yield as a function of TKE. Comparison with previous experimental results, evaluated data, and model predictions.

doi: 10.1103/PhysRevC.98.044615
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23444.


2018JA12      Eur.Phys.J. A 54, 114 (2018)

K.Jansson, A.Al-Adili, E.Andersson-Sunden, A.Gook, S.Oberstedt, S.Pomp

The impact of neutron emission on correlated fission data from the 2E-2v method

RADIOACTIVITY 252Cf(SF); calculated neutron multiplicity vs fragment yields, neutron correlations, neutron ToF using classical and using 2E-2v (double-energy, double-velocity) method; deduced significant differences.

doi: 10.1140/epja/i2018-12544-0
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2018LA15      Phys.Rev. C 98, 054604 (2018)

J.-M.Laborie, R.Billnert, G.Belier, A.Oberstedt, S.Oberstedt, J.Taieb

First experimental prompt γ-ray spectra in fast-neutron-induced fission of 238U

NUCLEAR REACTIONS 238U(n, F), E=1.6, 5.1, 15.0 MeV; measured Eγ, Iγ from prompt fission γ spectra (PFGS) using BGO detector, and using time-of-flight technique to reject prompt fission neutrons at the CEA, DAM, DIF Van de Graaff accelerator; deduced average multiplicity and mean photon energy per fission. Comparison with prompt fission γ spectra from 235U(n, F), and with theoretical predictions using GEF and FIFRELIN codes.

doi: 10.1103/PhysRevC.98.054604
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23447.


2018QI06      Phys.Rev. C 98, 014612 (2018)

L.Qi, M.Lebois, J.N.Wilson, A.Chatillon, S.Courtin, G.Fruet, G.Georgiev, D.G.Jenkins, B.Laurent, L.Le Meur, A.Maj, P.Marini, I.Matea, L.Morris, V.Nanal, P.Napiorkowski, A.Oberstedt, S.Oberstedt, C.Schmitt, O.Serot, M.Stanoiu, B.Wasilewska

Statistical study of the prompt-fission γ-ray spectrum for 238U (n, f) in the fast-neutron region

NUCLEAR REACTIONS 238U(n, F), E=1.9, 4.8 MeV fast neutrons from LICORNE directional neutron source; measured fission fragments, Eγ, Iγ, prompt-fission γ-ray spectra (PFGS), (fission events)γ-coin, and neutron time-of-flight using ionization chamber for fission detection, and PARIS array of fast scintillation detectors for γ detection at ALTO-IPN Orsay, using 252Cf(SF) as reference to validate experimental setup; deduced prompt fission γ multiplicity, average total Eγ. Comparison with previous experimental values, and with theoretical predictions from PbP, GEF, and FREYA fission models.

doi: 10.1103/PhysRevC.98.014612
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23417.


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
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset31778.


2017GO16      Phys.Rev. C 96, 044301 (2017)

A.Gook, C.Eckardt, J.Enders, M.Freudenberger, A.Oberstedt, S.Oberstedt

Correlated mass, energy, and angular distributions from bremsstrahlung-induced fission of 234U and 232Th in the energy region of the fission barrier

NUCLEAR REACTIONS 234U(γ, F), Eend-point=9.0, 7.5, 6.4 MeV bremsstrahlung; 232Th(γ, F), Eend-point=9.5, 8.0 MeV bremsstrahlung; 238U(γ, F), Eend-point=8.5 MeV bremsstrahlung; measured fission-fragments, fission yields, fission-fragment angular distributions using twin Frisch-grid ionization chamber (FGIC) at the superconducting Darmstadt linear accelerator (S-DALINAC) facility; deduced fission-fragment mass yield and TKE distributions. Discussed possible interpretation of observed correlations in terms of fission modes.

doi: 10.1103/PhysRevC.96.044301
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetG0059.


2017OB01      Phys.Rev. C 96, 034612 (2017)

A.Oberstedt, R.Billnert, S.Oberstedt

Predictions of characteristics of prompt-fission γ-ray spectra from the n + 238U reaction up to En = 20 MeV

NUCLEAR REACTIONS 234,236U, 240,242Pu, 252Cf(n, F); analyzed systematics and experimental data for prompt-fission γ-ray spectra (PFGS); deduced revised parameters and used for 238U+n reaction. 238U(n, F), E<20 MeV; predicted average prompt-fission γ-ray multiplicity, average total γ-ray energy released, and average γ-ray energy per fission as function of incident neutron energy. Comparison with experimental data, and theoretical calculations.

doi: 10.1103/PhysRevC.96.034612
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2017RO16      Phys.Rev. C 96, 014601 (2017)

S.J.Rose, F.Zeiser, J.N.Wilson, A.Oberstedt, S.Oberstedt, S.Siem, G.M.Tveten, L.A.Bernstein, D.L.Bleuel, J.A.Brown, L.Crespo Campo, F.Giacoppo, A.Gorgen, M.Guttormsen, K.Hadynska, A.Hafreager, T.W.Hagen, M.Klintefjord, T.A.Laplace, A.C.Larsen, T.Renstrom, E.Sahin, C.Schmitt, T.G.Tornyi, M.Wiedeking

Energy dependence of the prompt γ-ray emission from the (d, p) -induced fission of 234U* and 240Pu*

NUCLEAR REACTIONS 233U(d, pF)234U*, E=12.5 MeV; 239Pu(d, pF)239Pu*, E=12 MeV; measured protons, fission fragments, Eγ, p(one of the fission fragments)γ-coin using CACTUS array for γ detection, SiRi detector array for charged-particles and NIFF detector for fission fragments at Oslo Cyclotron Laboratory (OCL); deduced prompt-fission γ-ray spectral (PFGS) distributions, multiplicity, average γ-ray energy, and total γ-ray energy as function of excitation energy. Comparison with model calculations using the fission model code GEF.

doi: 10.1103/PhysRevC.96.014601
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2415.


2017WI02      Acta Phys.Pol. B48, 395 (2017)

J.N.Wilson, M.Lebois, L.Qi, P.Amador-Celdran, D.Bleuel, J.A.Briz, R.Carroll, W.Catford, H.De Witte, D.Doherty, R.Eloirdi, G.Georgiev, A.Gottardo, A.Goasduff, K.Hadynska-Klek, K.Hauschild, M.Hess, V.Ingeberg, T.Konstantinopoulos, J.Ljungvall, A.Lopez-Martens, G.Lorusso, R.Lozeva, R.Lutter, P.Marini, I.Matea, T.Materna, L.Mathieu, A.Oberstedt, S.Oberstedt, S.Panebianco, Z.Podolyak, A.Porta, P.H.Regan, P.Reiter, K.Rezynkina, S.J.Rose, E.Sahin, M.Seidlitz, R.Shearman, B.Siebeck, S.Siem, A.G.Smith, G.M.Tveten, D.Verney, N.Warr, F.Zeiser, M.Zielinska

Production and Study of Neutron-rich Nuclei Using the LICORNE Directional Neutron Source

NUCLEAR REACTIONS 238U(n, f), E≈threshold; measured Eγ, Iγ, γγ-coin.

doi: 10.5506/APhysPolB.48.395
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2017WI09      Phys.Rev.Lett. 118, 222501 (2017)

J.N.Wilson, M.Lebois, L.Qi, P.Amador-Celdran, D.Bleuel, J.A.Briz, R.Carroll, W.Catford, H.De Witte, D.T.Doherty, R.Eloirdi, G.Georgiev, A.Gottardo, A.Goasduff, K.Hadynska-Klek, K.Hauschild, H.Hess, V.Ingeberg, T.Konstantinopoulos, J.Ljungvall, A.Lopez-Martens, G.Lorusso, R.Lozeva, R.Lutter, P.Marini, I.Matea, T.Materna, L.Mathieu, A.Oberstedt, S.Oberstedt, S.Panebianco, Zs.Podolyak, A.Porta, P.H.Regan, P.Reiter, K.Rezynkina, S.J.Rose, E.Sahin, M.Seidlitz, O.Serot, R.Shearman, B.Siebeck, S.Siem, A.G.Smith, G.M.Tveten, D.Verney, N.Warr, F.Zeiser, M.Zielinska

Anomalies in the Charge Yields of Fission Fragments from the 238U(n, f) Reaction

NUCLEAR REACTIONS 238U(n, F), E fast; measured fission products, Eγ, Iγ. 141Te, 104Sr; deduced fission yields, charge yields of even-Z elements. Comparison with JEFF-3.1, ENDF/B-VII.1 evaluated nuclear data libraries.

doi: 10.1103/PhysRevLett.118.222501
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23403. Data from this article have been entered in the XUNDL database. For more information, click here.


2016AL04      Phys.Rev. C 93, 034603 (2016)

A.Al-Adili, F.-J.Hambsch, S.Pomp, S.Oberstedt, M.Vidali

Fragment-mass, kinetic energy, and angular distributions for 234U(n, f) at incident neutron energies from En=0.2 MeV to 5.0 MeV

NUCLEAR REACTIONS 234U(n, F), E=0.2-5.0 MeV; measured fission fragments, fragment mass yields, total kinetic energy (TKE) and angular distributions as a function of incident neutron energy using double-energy (2E) technique and a twin Frisch-grid ionization chamber at JRC-IRMM-Geel Van de Graaff accelerator facility; deduced average heavy fragment pre-neutron mass, and width of the mass distribution as a function of incident neutron energy, relative weight of the S1 and S2 fission modes.

doi: 10.1103/PhysRevC.93.034603
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23164.


2016CA03      Nucl.Data Sheets 131, 1 (2016)

R.Capote, Y.-J.Chen, F.-J.Hambsch, N.V.Kornilov, J.P.Lestone, O.Litaize, B.Morillon, D.Neudecker, S.Oberstedt, T.Ohsawa, N.Otuka, V.G.Pronyaev, A.Saxena, O.Serot, O.A.Shcherbakov, N.-C.Shu, D.L.Smith, P.Talou, A.Trkov, A.C.Tudora, R.Vogt, A.S.Vorobyev

Prompt Fission Neutron Spectra of Actinides

NUCLEAR REACTIONS 232Th, 233,234,235,238U, 237Np, 239Pu(n, F), E<30 MeV; calculated prompt fission En, In; Comparison with available data.

doi: 10.1016/j.nds.2015.12.002
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset33084.


2016JO06      Eur.Phys.J. A 52, 148 (2016)

N.Jovancevic, L.Daraban, H.Stroh, S.Oberstedt, M.Hult, C.Bonaldi, W.Geerts, F.-J.Hambsch, G.Lutter, G.Marissens, M.Vidali

The neutron cross-section functions for the reactions 187Re(n, α)184Ta, 187Re(n, 2n)186Re and 185Re(n, 2n)184Re in the energy range 13.08 - 19.5 MeV

NUCLEAR REACTIONS 187Re(n, α), E=13.0819.5 MeV;185,187Re(n, 2n), E=13.0819.5 MeV; measured thick target activation Eγ, γ using the MAXSUN method; deduced neutron fluence spectra, σ; evaluated σ. EXcitation function compared with EXFOR data and ENDF/B-VII.1, JEFF-3.2, ROSFOND-301o, MENDL-2 evaluations.

doi: 10.1140/epja/i2016-16148-4
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23301.


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
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23305.


2015LE12      Phys.Rev. C 92, 034618 (2015)

M.Lebois, J.N.Wilson, P.Halipre, A.Oberstedt, S.Oberstedt, P.Marini, C.Schmitt, S.J.Rose, S.Siem, M.Fallot, A.Porta, A.-A.Zakari

Comparative measurement of prompt fission γ-ray emission from fast-neutron-induced fission of 235U and 238U

NUCLEAR REACTIONS 235U(n, F), E=1.73 MeV; 238U(n, F), E=2.07 MeV; measured prompt fission γ-ray (PFG) spectra using fast-neutron source LICORNE at the ALTO facility of the IPN-Orsay; deduced γ-multiplicity, total and average radiation energy, average photon energies. Monte Carlo N-particle (MCNP) simulations of all the components of the experimental setup.

doi: 10.1103/PhysRevC.92.034618
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23299.


2015OB01      Phys.Rev. C 92, 014618 (2015)

A.Oberstedt, R.Billnert, F.-J.Hambsch, S.Oberstedt

Impact of low-energy photons on the characteristics of prompt fission γ-ray spectra

RADIOACTIVITY 252Cf(SF); measured prompt fission γ spectra (PFGS), (fission fragment)γ-coin using LaCl3:Ce scintillation detectors for γ rays and pcCVD diamond detector for fission fragments; deduced γ-ray multiplicity, average γ energy, and total γ energy. Comparison with previous experimental data, and with data from the evaluated library ENDF/B-VII.1. Discussed problems with the low-energy γ spectra.

doi: 10.1103/PhysRevC.92.014618
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23197.


2015OB02      Eur.Phys.J. A 51, 178 (2015)

S.Oberstedt, R.Billnert, F.-J.Hambsch, M.Lebois, A.Oberstedt, J.N.Wilson

Future research program on prompt γ-ray emission in nuclear fission

doi: 10.1140/epja/i2015-15178-8
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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
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23281.


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
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23280.


2014AL18      Nucl.Data Sheets 119, 342 (2014)

A.Al-Adili, F.-J.Hambsch, S.Pomp, S.Oberstedt

Sensitivity of Measured Fission Yields on Prompt-neutron Corrections

NUCLEAR REACTIONS 234U(n, F), 235U(n, F), 237Np(n, F), E=0.8, 5.6 MeV; measured neutrons, fission fragments using 2E-telescope; deduced neutron multiplicity mass distribution, post-neutron mass yield distribution.

doi: 10.1016/j.nds.2014.08.094
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2014HA25      Nucl.Data Sheets 119, 38 (2014)

F.-J.Hambsch, S.Oberstedt, A.Al-Adili, T.Brys, R.Billnert, C.Matei, A.Oberstedt, P.Salvador-Castineira, A.Tudora, M.Vidali

Fission Fragment Yield, Cross Section and Prompt Neutron and Gamma Emission Data from Actinide Isotopes

NUCLEAR REACTIONS 234,238U(n, F), E=0.2-5 MeV; measured fission fragments; deduced yields, prompt fission neutron multiplicity. Compared with evaluations and available data. 242Pu(n, F), E=0-3 MeV; measured fission fragments;deduced fission σ.Compared with evaluations and available data.

RADIOACTIVITY 252Cf(SF); measured prompt fission Eγ, Iγ; deduced γ-ray spectrum. Compared to other data and evaluations.

doi: 10.1016/j.nds.2014.08.012
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23280.


2014LE01      Nucl.Instrum.Methods Phys.Res. A735, 145 (2014)

M.Lebois, J.N.Wilson, P.Halipre, B.Leniau, I.Matea, A.Oberstedt, S.Oberstedt, D.Verney

Development of a kinematically focused neutron source with the p(7Li, n)7Be inverse reaction

NUCLEAR REACTIONS 1H(7Li, n), E=13.5, 15, 15.5, 16, 17 MeV; measured reaction products, En, In; deduced neutron σ(θ). Monte Carlo code validation of experimental data.

doi: 10.1016/j.nima.2013.07.061
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2014LE24      Nucl.Data Sheets 119, 353 (2014)

X.Ledoux, M.Aiche, M.Avrigeanu, V.Avrigeanu, L.Audouin, E.Balanzat, B.Ban-detat, G.Ban, G.Barreau, E.Bauge, G.Belier, P.Bem, V.Blideanu, C.Borcea, S.Bouffard, T.Caillaud, A.Chatillon, S.Czajkowski, P.Dessagne, D.Dore, M.Fallot, F.Farget, U.Fischer, L.Giot, T.Granier, S.Guillous, F.Gunsing, C.Gustavsson, B.Jacquot, K.Jansson, B.Jurado, M.Kerveno, A.Klix, O.Landoas, F.R.Lecolley, J.L.Lecouey, M.Majerle, N.Marie, T.Materna, J.Mrazek, F.Negoita, J.Novak, S.Oberstedt, A.Oberstedt, S.Panebianco, L.Perrot, A.J.M.Plompen, S.Pomp, J.M.Ramillon, D.Ridikas, B.Rosse, G.Rudolf, O.Serot, S.P.Simakov, E.Simeckova, A.G.Smith, J.C.Sublet, J.Taieb, L.Tassan-Got, D.Tarrio, A.Takibayev, I.Thfoin, I.Tsekhanovich, C.Varignon

The Neutrons for Science Facility at SPIRAL-2

doi: 10.1016/j.nds.2014.08.097
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2014OB04      Nucl.Data Sheets 119, 225 (2014)

S.Oberstedt, R.Billnert, T.Belgya, R.Borcea, T.Brys, W.Geerts, A.Gook, F.-J.Hambsch, Z.Kish, T.Martinez Perez, A.Oberstedt, L.Szentmiklosi, M.Vidali

New Prompt Fission γ-ray Data in Response to the OECD/NEA High Priority Request

RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ using LaBr3(Ce); deduced prompt γ ray emission spectrum, γ-ray multiplicity. Compared with data and ENDF/B-VII.0.

NUCLEAR REACTIONS 235U(n, F), E=thermal; measured Eγ, Iγ using LaBr3(Ce); deduced prompt γ ray emission spectrum, γ-ray multiplicity. Compared with data and ENDF/B-VII.0.

doi: 10.1016/j.nds.2014.08.062
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset31729.


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
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset31747.


2014SA47      Nucl.Data Sheets 119, 55 (2014)

P.Salvador-Castineira, T.Brys, F.-J.Hambsch, S.Oberstedt, C.Pretel, M.Vidali

Neutron-induced Fission Cross Section of 240, 242Pu up to Enn = 3 MeV

NUCLEAR REACTIONS 240,242Pu(n, F), E=0.2-3 MeV; measured fission fragments using TFGIC (Twin-Frisch Grid Ionization Chamber), fragment α-decay using wave-form digitizers; deduced σ, T1/2. Preliminary. Compared with ENDF/B-VII.0, ENDF/B-VII.1, JEFF-3.1, JENDL-4.0.

doi: 10.1016/j.nds.2014.08.017
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23280.


2013BI02      Phys.Rev. C 87, 024601 (2013)

R.Billnert, F.-J.Hambsch, A.Oberstedt, S.Oberstedt

New prompt spectral γ-ray data from the reaction 252Cf(sf) and its implication on present evaluated nuclear data files

RADIOACTIVITY 252Cf(SF); measured prompt Eγ, Iγ using cerium-doped LaBr3 and CeBr3 scintillation detectors.; deduced prompt fission γ-ray yield and multiplicity, average and total energy. Comparison with previous experimental studies, and with ENDF/B-VII.0, ENDF/B-VII.1 evaluated libraries.

doi: 10.1103/PhysRevC.87.024601
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23197.


2013OB02      Phys.Rev. C 87, 051602 (2013)

A.Oberstedt, T.Belgya, R.Billnert, R.Borcea, T.Brys, W.Geerts, A.Gook, F.-J.Hambsch, Z.Kis, T.Martinez, S.Oberstedt, L.Szentmiklosi, K.Takacs, M.Vidali

Improved values for the characteristics of prompt-fission γ-ray spectra from the reaction 235U(nth, f)

NUCLEAR REACTIONS 235U(n, F), E=thermal; measured prompt Eγ, Iγ, fission fragments, γγ-, (fragment)γ-coin, time-of-flight, γ-ray multiplicity at KFKI, Budapest facility; deduced average emission yield of prompt-fission γ rays. Comparison with evaluated data in ENDF/B-VII.1, and previous experimental results.

doi: 10.1103/PhysRevC.87.051602
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset31729.


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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Data from this article have been entered in the XUNDL database. For more information, click here.


2013SA68      Phys. Procedia 47, 150 (2013)

P.Salvador-Castineira, R.Bevilacqua, T.Brys, F.-J.Hambsch, S.Oberstedt, C.Pretel, M.Vidali

Measurement of the 240, 242Pu Neutron-induced Fission Cross Sections

NUCLEAR REACTIONS 240,242Pu(n, F), E=0.0002-3 MeV; measured fission products; deduced σ. Comparison with ENDF/B-VII.0, ENDF/B-VII.1, JEFF-3.1, JENDL-4.0 libraries.

RADIOACTIVITY 240,242Pu(α), (SF); measured decay products, Eα, Iα; deduced spontaneous fission T1/2.

doi: 10.1016/j.phpro.2013.06.022
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2013TU09      Nucl.Phys. A917, 43 (2013)

A.Tudora, F.-J.Hambsch, S.Oberstedt

Prompt fission neutron emission calculations and description of sub-barrier fission cross section resonances for 234U(n, f)

NUCLEAR REACTIONS 234U(n, F), E=0.2-5 MeV; calculated prompt neutron and γ emission, neutron multiplicity, γ multiplicity, fusion σ, average γ and neutron energy, relative channel population, fragment excitation energy using Point-by-Point model. Compared with published data, ENDF/B-VII and JEFF3.1.2 evaluations.

doi: 10.1016/j.nuclphysa.2013.09.002
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2012AL21      Phys.Rev. C 86, 054601 (2012)

A.Al-Adili, F.-J.Hambsch, S.Pomp, S.Oberstedt

Impact of prompt-neutron corrections on final fission-fragment distributions

NUCLEAR REACTIONS 234U(n, F), E=4, 5 MeV; measured fragment spectra, emission angle of both fragments, full and prompt neutron multiplicity distribution as function of fragment mass using Twin Frisch Grid Ionization Chamber at IRMM facility; deduced post-neutron-emission kinetic energy, mass distributions for heavy and light fragments, pre-neutron-emission mass distribution, TKE and mean pre-neutron emission mass. Comparison between Average method (AV) and Heavy method (HE) for prompt neutron correction.

doi: 10.1103/PhysRevC.86.054601
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23164.


2012KE04      Phys.Rev. C 85, 044613 (2012)

G.Kessedjian, G.Barreau, M.Aiche, B.Jurado, A.Bidaud, S.Czajkowski, D.Dassie, B.Haas, L.Mathieu, L.Tassan-Got, J.N.Wilson, F.-J.Hambsch, S.Oberstedt, I.AlMahamid, J.Floyd, W.Lukens, D.Shuh

243Am neutron-induced fission cross section in the fast neutron energy range

NUCLEAR REACTIONS 243Am(n, F), E=1-8 MeV; measured fission fragment spectra, σ(E). Measurements with reference to 235,238U(n, F), and 1H(n, p). Variance-covariance analysis and interpretation by principal components. Comparison with previous studies and evaluated data libraries.

doi: 10.1103/PhysRevC.85.044613
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22993.


2012MO10      J.Phys.(London) G39, 055103 (2012)

C.Morariu, A.Tudora, F.-J.Hambsch, S.Oberstedt, C.Manailescu

Modelling of the total excitation energy partition including fragment deformation and excitation energies at scission

NUCLEAR REACTIONS 233,235U, 239Pu, 237Np(n, F), E=0.8, 5.5 MeV; calculated partition of the total excitation energy between fragments. Comparison with available data.

RADIOACTIVITY 252Cf(SF); calculated partition of the total excitation energy between fragments. Comparison with available data.

doi: 10.1088/0954-3899/39/5/055103
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2012OB01      Ann.Nucl.Energy 43, 26 (2012)

S.Oberstedt, A.Oberstedt, E.Birgersson, I.Fabry, F.J.Hambsch, N.Kornilov, G.Lovestam, A.Tudora

First results on the neutron-induced fission cross-section of 231Pa for incident neutron energies En >17 MeV

NUCLEAR REACTIONS 231Pa(n, F), E=15-20.9 MeV; measured fission fragments, Eα, Iα; deduced σ and uncertainties. Comparison with experimental data, calculations, ENDF/B-VII.

doi: 10.1016/j.anucene.2011.12.023
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23159.


2012TU03      Nucl.Phys. A890-891, 77 (2012)

A.Tudora, F.-J.Hambsch, S.Oberstedt

Sub-barrier resonance fission and its effects on fission fragment properties

NUCLEAR REACTIONS 238U(n, n), (n, n'), (n, F), (n, γ), E≈0.1-20 MeV; calculated prompt neutron multiplicity, average heavy fragment mass, kinetic energy, fission σ, yields, total σ [between 0.01 and 50 MeV], elastic and inelastic σ, neutron dσ, fission σ using statistical model with vibrational resonances for subbarrier fission and point-by-point model for prompt neutron emission. Compared with data.

doi: 10.1016/j.nuclphysa.2012.07.006
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2011GO02      Nucl.Phys. A851, 1 (2011)

A.Gook, M.Chernykh, C.Eckardt, J.Enders, P.von Neumann-Cosel, A.Oberstedt, S.Oberstedt, A.Richter

Fragment characteristics from fission of 238U and 234U induced by 6.5-9.0 MeV bremsstrahlung

NUCLEAR REACTIONS 234,238U(γ, F), E=5-9 MeV bremsstrahlung; measured fission fragment energy spectra, mass distributions and yields using twin Frisch grid ionization chamber; deduced fission reaction mechanism features. Comparison with other data and multi-modal random-neck rupture model.

doi: 10.1016/j.nuclphysa.2010.12.012
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetG0025.


2011HA55      J.Korean Phys.Soc. 59, 1654s (2011)

F.-J.Hambsch, S.Oberstedt, A.Al-Adil, R.Borcea, A.Oberstedt, A.Tudora, Sh.Zeynalov

Investigation of the Fission Process at IRMM

RADIOACTIVITY 252Cf(SF); measured decay products, En, In, Eγ, Iγ also using 2ν2E VERDI spectrometer; deduced prompt neutron multiplicity vs fragment mass, TKE.

NUCLEAR REACTIONS 234,238U(n, F), E=0.2-5 MeV; measured fission fragments around vibrational resonance; deduced anisotropy. Compared with other data. 231Pa(n, F), E=0-21 MeV; measured fission fragments; deduced σ; calculated σ. Compared with other data, ENDF/B-VII. 233,235U(n, F), E=thermal; measured prompt neutron multiplicity vs TKE; calculated prompt neutron multiplicity vs TKE using PbP (Point by Point model - improvement of Madland and Nix)

doi: 10.3938/jkps.59.1654
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23118.


2011MA49      Nucl.Phys. A867, 12 (2011)

C.Manailescu, A.Tudora, F.-J.Hambsch, C.Morariu, S.Oberstedt

Possible reference method of total excitation energy partition between complementary fission fragments

NUCLEAR REACTIONS 233,235U, 239Pu(n, f), E=thermal; 237Np(n, f), E=0.8, 5.5 MeV; calculated prompt fission neutron multiplicity, fragment excitation energy, level-density parameter, temperature using TXE (Total eXcitation Energy partition). Comparison with data.

RADIOACTIVITY 248Cm, 252Cf(SF); calculated prompt fission neutron multiplicity, fragment excitation energy, level-density parameter, temperature using TXE (Total eXcitation Energy partition). Comparison with data.

doi: 10.1016/j.nuclphysa.2011.08.001
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2011ZE04      J.Korean Phys.Soc. 59, 1396s (2011)

Sh.Zeynalov, F.-J.Hambsch, S.Oberstedt

Neutron Emission in Fission of 252Cf(SF)

RADIOACTIVITY 252Cf(SF); measured En, In using NE213 equivalent, fragments energy, angle (fragment)(fragment)-coin using twin Frisch-grid ionization chamber, digital acquisition and digital processing analysis.

doi: 10.3938/jkps.59.1396
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23118.


2010BO26      J.Phys.:Conf.Ser. 205, 012050 (2010)

R.Borcea, R.Billnert, W.Geerts, F.-J.Hambsch, R.J.Tornin, J.Karlsson, A.Oberstedt, S.Oberstedt

Measurement of prompt gamma-ray emission in fission

doi: 10.1088/1742-6596/205/1/012050
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2010KO05      Nucl.Sci.Eng. 165, 117 (2010)

N.Kornilov, F.-J.Hambsch, I.Fabry, S.Oberstedt, T.Belgya, Z.Kis, L.Szentmiklosi, S.Simakov

The 235U(n, f) Prompt Fission Neutron Spectrum at 100 K Input Neutron Energy

NUCLEAR REACTIONS 235U(n, F), E=100 K; measured fission products; deduced fission neutron spectrum, keff. Comparison with experimental data.

doi: 10.13182/NSE09-25
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset31692.


2010YE02      Phys.Rev. C 81, 044309 (2010)

O.Yevetska, J.Enders, M.Fritzsche, P.von Neumann-Cosel, S.Oberstedt, A.Richter, C.Romig, D.Savran, K.Sonnabend

Dipole strength in the 235U(γ, γ') reaction up to 2.8 MeV

NUCLEAR REACTIONS 235U(γ, γ') E=3.5, 4.4 MeV; measured Eγ, Iγ, γ(θ), integrated cross sections of γ rays. 235U; deduced levels, B(M1), B(E1) strengths. 232Th, 235,236,238U; systematics of M1 strength functions.

doi: 10.1103/PhysRevC.81.044309
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetG0024. Data from this article have been entered in the XUNDL database. For more information, click here.


2010ZE04      Bull.Rus.Acad.Sci.Phys. 74, 800 (2010); Izv.Akad.Nauk RAS, Ser.Fiz 74, 837 (2010)

O.V.Zeynalova, Sh.Zeynalov, F.-J.Hambsch, S.Oberstedt, I.Fabry

Digital signal processing application to 252Cf(sf) reaction products spectroscopy

RADIOACTIVITY 252Cf(SF); measured fission fragments; deduced mass yield, angular distribution, prompt fission neutron energy spectrum. Comparison with maxwellian spectrum.

doi: 10.3103/S1062873810060158
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23118.


2009BI01      Nucl.Phys. A817, 1 (2009)

E.Birgersson, A.Oberstedt, S.Oberstedt, F.-J.Hambsch

Properties of the reaction 238U(n, f) at the vibrational resonances

NUCLEAR REACTIONS 238U(n, F), E=0.9-2.0 MeV; measured/analyzed fission fragment mass yields and kinetic energy distributions; discussed different fission mode contributions. Comparison with other data. Statistical model used.

doi: 10.1016/j.nuclphysa.2008.12.001
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23054.


2008TU04      Ann.Nucl.Energy 35, 1131 (2008)

A.Tudora, G.Vladuca, F.-J.Hambsch, D.Filipescu, S.Oberstedt

Prompt fission neutron multiplicity and spectrum calculations for thermal and fast neutron induced reactions on 233, 231Pa nuclei

NUCLEAR REACTIONS 231,232,233Pa(n, F), E=thermal-50 MeV; calculated fission σ ratios, total kinetic energies, total excitation energies, prompt neutron energies, average prompt γ-ray energies, prompt neutron multiplicity and total fragment-fragment multiplicity for fragment pairs with A=70-160 using Point-by-Point model. Comparison with experimental data.

doi: 10.1016/j.anucene.2007.10.002
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2007BI24      Nucl.Phys. A791, 1 (2007)

E.Birgersson, S.Oberstedt, A.Oberstedt, F.-J.Hambsch, D.Rochman, I.Tsekhanovich, S.Raman

Light fission-fragment mass distribution from the reaction 251Cf(nth, f)

NUCLEAR REACTIONS 251Cf(n, X), E=thermal; measured light fission fragment yields, mass and energy distributions.

doi: 10.1016/j.nuclphysa.2007.04.018
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2007LO17      Nucl.Instrum.Methods Phys.Res. A 580, 1400 (2007)

G.Lovestam, M.Hult, A.Fessler, T.Gamboni, J.Gasparro, R.Jaime, P.Lindahl, S.Oberstedt, H.Tagziria

Measurement of neutron excitation functions using wide energy neutron beams

NUCLEAR REACTIONS 113In(n, n'), 115In(n, n'), E=280 keV-5.6 MeV; measured products, 115In, 113In; deduced σ, σ(E). Data were imported from EXFOR entry 23101.

doi: 10.1016/j.nima.2007.06.090
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23101.


2007OB01      Nucl.Instrum.Methods Phys.Res. A570, 51 (2007)

A.Oberstedt, S.Oberstedt

Energy degrader technique for light-charged particle spectroscopy at LOHENGRIN

NUCLEAR REACTIONS 235U(n, F), E=thermal; measured light charged particles energy distribution following ternary fission. Energy degrader technique.

doi: 10.1016/j.nima.2006.10.004
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2007OB02      Phys.Rev.Lett. 99, 042502 (2007)

A.Oberstedt, S.Oberstedt, M.Gawrys, N.Kornilov

Identification of a Shape Isomer in 235U

NUCLEAR REACTIONS 234U(n, γ)235U, E=0.95, 1.27 MeV; measured delayed fission fragment spectra from the decay of the shape isomer, isomeric fission T1/2 and cross section.

doi: 10.1103/PhysRevLett.99.042502
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Data from this article have been entered in the XUNDL database. For more information, click here.


2005HA31      Ann.Nucl.Energy 32, 1032 (2005)

F.-J.Hambsch, A.Tudora, G.Vladuca, S.Oberstedt

Prompt fission neutron spectrum evaluation for 252Cf(SF) in the frame of the multi-modal fission model

RADIOACTIVITY 252Cf(SF); calculated prompt fission neutron spectra. Multi-modal fission model, comparison with data.

doi: 10.1016/j.anucene.2005.02.006
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2005HA42      Ann.Nucl.Energy 32, 1297 (2005)

F.-J.Hambsch, G.Vladuca, A.Tudora, S.Oberstedt, I.Ruskov

Prediction of fission mass-yield distributions based on cross section calculations

NUCLEAR REACTIONS 235,238U, 237Np(n, F), E=0.01-5.5 MeV; calculated fission σ, fragment mass distributions. Extended statistical model, comparisons with data.

doi: 10.1016/j.anucene.2005.03.011
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2005OB04      Nucl.Phys. A761, 173 (2005)

S.Oberstedt, A.Oberstedt, D.Rochman, F.Gonnenwein, I.Tsekhanovich, J.Becker, A.Sartz, H.Bax, F.-J.Hambsch, S.Raman

Light charged particle emission in the reaction 251Cf(nth, f)

NUCLEAR REACTIONS 251Cf(n, F), E=thermal; measured light charged particle yields, energy distributions following ternary fission; deduced evidence for 34Al, 36Si.

doi: 10.1016/j.nuclphysa.2005.07.006
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22899.


2005OB05      Ann.Nucl.Energy 32, 1867 (2005)

S.Oberstedt, A.Oberstedt, F.-J.Hambsch, V.Fritsch, G.Lovestam, N.Kornilov

New results on the neutron-induced fission cross-section of 231Pa for incident neutron energies En = 0.8-3.5 MeV

NUCLEAR REACTIONS 231Pa(n, F), E=0.8-3.5 MeV; measured fission σ. Comparison with previous results.

doi: 10.1016/j.anucene.2005.07.005
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22910.


2005TU04      Nucl.Phys. A756, 176 (2005)

A.Tudora, B.Morillon, F.-J.Hambsch, G.Vladuca, S.Oberstedt

A refined model for 235U(n, f) prompt fission neutron multiplicity and spectrum calculation with validation in integral benchmarks

NUCLEAR REACTIONS 235U(n, F), E=thermal-30 MeV; calculated prompt fission neutron spectra, multiplicities. Comparison with data.

doi: 10.1016/j.nuclphysa.2005.03.014
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2004TO08      Nucl.Phys. A733, 3 (2004)

F.Tovesson, E.Birgersson, M.Fleneus, B.Fogelberg, V.Fritsch, C.Gustafsson, F.-J.Hambsch, A.Oberstedt, S.Oberstedt, E.Ramstrom, A.Tudora, G.Vladuca

233Pa(n, f) cross section up to En = 8.5 MeV

NUCLEAR REACTIONS 233Pa(n, F), E=1.0-8.5 MeV; measured fission σ vs neutron energy. Comparison with evaluated data and model predictions.

doi: 10.1016/j.nuclphysa.2003.11.054
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22698.


2004VL01      Phys.Rev. C 69, 021604 (2004)

G.Vladuca, F.-J.Hambsch, A.Tudora, S.Oberstedt, F.Tovesson, A.Oberstedt, D.Filipescu

Calculation of the neutron-induced fission cross section of 233Pa

NUCLEAR REACTIONS 233Pa(n, X), (n, n), (n, n'), (n, F), E=0.01-6 MeV; calculated total, elastic, inelastic, and fission σ. Comparison with previous results.

doi: 10.1103/PhysRevC.69.021604
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2004VL02      Nucl.Phys. A740, 3 (2004)

G.Vladuca, F.-J.Hambsch, A.Tudora, S.Oberstedt, A.Oberstedt, F.Tovesson, D.Filipescu

Calculation of the neutron induced fission cross-section of 233Pa up to 20 MeV

NUCLEAR REACTIONS 233Pa(n, F), (n, X), E=0.01-20 MeV; 231,232Pa(n, F), (n, X), E=0.01-6 MeV; analyzed fission and total reaction σ; deduced fission barrier parameters, transmission coefficients. 233Pa(n, n), (n, n'), (n, γ), (n, 2n), (n, 3n), E < 20 MeV; calculated σ. Comparison with previous results.

doi: 10.1016/j.nuclphysa.2004.04.113
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2003HA26      Nucl.Phys. A726, 248 (2003)

F.-J.Hambsch, S.Oberstedt, A.Tudora, G.Vladuca, I.Ruskov

Prompt fission neutron multiplicity and spectrum evaluation for 235U(n, f) in the frame of the multi-modal fission model

NUCLEAR REACTIONS 235U(n, F), E=0-5.5 MeV; calculated fission σ, fragment mass yields, prompt neutron multiplicity, neutron spectra, average Eγ. Multi-modal fission approach, comparisons with data.

doi: 10.1016/j.nuclphysa.2003.07.002
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2003VL01      Nucl.Phys. A720, 274 (2003)

G.Vladuca, A.Tudora, F.-J.Hambsch, S.Oberstedt, I.Ruskov

Evaluation of the fission cross-section within the multi-model fission approach for 235U(n, f)

NUCLEAR REACTIONS 235U(n, X), E=0.001-20 MeV; calculated total σ. 235U(n, n), E ≈ 3-6 MeV; calculated σ(θ). 235U(n, n'), (n, γ), (n, F), E ≈ 0-6 MeV; calculated inelastic, capture, and fission σ. Multi-modal fission approach, comparison with data.

doi: 10.1016/S0375-9474(03)00911-4
Citations: PlumX Metrics


2002HA38      Nucl.Phys. A709, 85 (2002)

F.-J.Hambsch, S.Oberstedt, G.Vladuca, A.Tudora

Prompt Fission Neutron Multiplicity and Spectra Evaluation in the Frame of the Multi-Modal Fission Model for 237Np(n, f) and 238U(n, f)

NUCLEAR REACTIONS 237Np, 238U(n, F), E=0.5-5.5 MeV; calculated prompt neutron spectra, multiplicities. Multi-modal fission model, comparisons with data.

doi: 10.1016/S0375-9474(02)01041-2
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2002RO37      Nucl.Phys. A710, 3 (2002)

D.Rochman, H.Faust, I.Tsekhanovich, F.Gonnenwein, F.Storrer, S.Oberstedt, V.Sokolov

Isotopic yields from the reaction 245Cm(nth, f) at the Lohengrin mass separator

NUCLEAR REACTIONS 245Cm(n, F), E=thermal; measured fission product isotopic yields, kinetic energy spectra; deduced global odd-even effect, related features. Mass separator.

doi: 10.1016/S0375-9474(02)01026-6
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22805.


2002TO02      Phys.Rev.Lett. 88, 062502 (2002)

F.Tovesson, F.-J.Hambsch, A.Oberstedt, B.Fogelberg, E.Ramstrom, S.Oberstedt

Neutron-Induced Fission Cross Section of 233Pa between 1.0 and 3.0 MeV

NUCLEAR REACTIONS 233Pa(n, F), E=1.0, 1.6, 2.0, 3.0 MeV; measured fission σ, fragment spectra; deduced fission threshold. Comparison with previous data and model estimates.

doi: 10.1103/PhysRevLett.88.062502
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22698.


2002VL01      Nucl.Phys. A707, 32 (2002)

G.Vladuca, A.Tudora, F.-J.Hambsch, S.Oberstedt

Fission Cross-Section Evaluations in the Frame of the Multi-Model Fission Model for 237Np(n, f)

NUCLEAR REACTIONS 237Np(n, X), E=0.01-20 MeV; calculated total σ. 237Np(n, F), E=0.01-5.5 MeV; calculated fission σ; deduced fission barrier, related features. Multi-modal fission approach, comparison with data.

doi: 10.1016/S0375-9474(02)00959-4
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2001GE07      Phys.Rev. C63, 054315 (2001)

J.Genevey, J.A.Pinston, C.Foin, M.Rejmund, R.F.Casten, H.Faust, S.Oberstedt

Conversion Electron Measurements of Isomeric Transitions in 130, 132Te and 134Xe

NUCLEAR REACTIONS 239,241Pu(n, F), E=thermal; measured delayed Eγ, Iγ, E(ce), I(ce), (fragment)γ-, γγ-, (ce)γ-coin. 130,132Te, 134Xe deduced levels, J, π, isomers T1/2, B(E2). Systematics in neighboring nuclides discussed.

RADIOACTIVITY 130,132Te, 134Xe(IT) [from239,241Pu(n, F), E=thermal]; measured Eγ, Iγ, E(ce), I(ce), γγ-, (ce)γ-coin, T1/2. 130,132Te, 134Xe deduced levels, J, π, B(E2). Systematics in neighboring nuclides discussed.

doi: 10.1103/PhysRevC.63.054315
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2001TS05      Nucl.Phys. A688, 633 (2001)

I.Tsekhanovich, H.-O.Denschlag, M.Davi, Z.Buyukmumcu, F.Gonnenwein, S.Oberstedt, H.R.Faust

Mass and Charge Distributions in the Very Asymmetric Mass Region of the Neutron Induced Fission of 238Np

NUCLEAR REACTIONS 237Np(2n, F), E=thermal; measured fission fragment yields, charge distributions; deduced odd-even effect. Mass separation.

doi: 10.1016/S0375-9474(00)00586-8
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23179.


2000GE08      Eur.Phys.J. A 7, 463 (2000)

J.Genevey, J.A.Pinston, H.Faust, C.Foin, S.Oberstedt, B.Weiss

On the Nature of the 17 μs Isomer of the 133Sb Valence Nucleus

RADIOACTIVITY 133Sb(IT) [from 241Pu(n, F)]; measured Eγ, Iγ(t), E(ce), I(ce), (ce)γ-coin, T1/2. 133Sb deduced levels, J, π, B(E2), ICC, configurations.

doi: 10.1007/s100500050418
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Data from this article have been entered in the XUNDL database. For more information, click here.


2000GE18      Eur.Phys.J. A 9, 191 (2000)

J.Genevey, J.A.Pinston, H.Faust, C.Foin, S.Oberstedt, M.Rejmund

New High-Spin Microsecond Isomers in 131Sb

NUCLEAR REACTIONS 241Pu(n, F), E=thermal; measured Eγ, Iγ(t), (fragment)γ-, (fragment)(X-ray)-coin following fission. 131Sb deduced levels, J, π, configurations, high-spin isomers T1/2, B(E2). Mass separator.

doi: 10.1007/s100500070036
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Data from this article have been entered in the XUNDL database. For more information, click here.


2000HA52      Nucl.Phys. A679, 3 (2000)

F.-J.Hambsch, F.Vives, P.Siegler, S.Oberstedt

Study of the 237Np(n, f)-Reaction at MeV Neutron Energies

NUCLEAR REACTIONS 237Np(n, F), E=0.3-5.5 MeV; measured fission σ, fragments kinetic energy and mass distributions. Comparison with multimodal random-neck rupture model.

doi: 10.1016/S0375-9474(00)00338-9
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22470.


2000PI03      Phys.Rev. C61, 024312 (2000)

J.A.Pinston, C.Foin, J.Genevey, R.Beraud, E.Chabanat, H.Faust, S.Oberstedt, B.Weiss

Microsecond Isomers in 125, 127, 129Sn

NUCLEAR REACTIONS 233U, 239Pu(n, F), E=thermal; measured Eγ, Iγ(t), E(ce), I(ce), γγ-, (ce)γ-, (fission fragment)γ-coin. 123,125,127,129Sn deduced levels, J, π, isomers T1/2, B(E2). 127,129In deduced possible high-spin β isomers.

doi: 10.1103/PhysRevC.61.024312
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Data from this article have been entered in the XUNDL database. For more information, click here.


2000VI01      Nucl.Phys. A662, 63 (2000)

F.Vives, F.-J.Hambsch, H.Bax, S.Oberstedt

Investigation of the Fission Fragment Properties of the Reaction 238U(n, f) at Incident Neutron Energies up to 5.8 MeV

NUCLEAR REACTIONS 238U(n, F), E=1.2-5.8 MeV; measured fission fragments mass, energy distributions; deduced anisotropy, pair breaking features. Multi-modal random neck-rupture model.

doi: 10.1016/S0375-9474(99)00413-3
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22402.


1999GE01      Phys.Rev. C59, 82 (1999)

J.Genevey, F.Ibrahim, J.A.Pinston, H.Faust, T.Friedrichs, M.Gross, S.Oberstedt

Identification of μs Isomers in the Fission Products of 241Pu(nth, f)

RADIOACTIVITY 88mBr, 96mRb, 97mSr, 94m,98m,99mY, 99mZr, 100m,106mNb, 104mTc, 107mMo, 109mRu, 109mRh(IT) [from 241Pu(n, F), E=thermal]; measured Eγ, Iγ(t), E(ce), I(ce), γγ-, (ce)γ-coin, T1/2. 88Br, 94Y, 96Rb, 97Sr, 100,106Nb deduced levels, J, π.

NUCLEAR REACTIONS 241Pu(n, F), E=thermal; measured Eγ, Iγ(t), E(ce), I(ce), γγ-, (ce)γ-coin; deduced isomer yields.

doi: 10.1103/PhysRevC.59.82
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23579. Data from this article have been entered in the XUNDL database. For more information, click here.


1999KO26      Nucl.Phys. A652, 371 (1999)

U.Koster, H.Faust, G.Fioni, T.Friedrichs, M.Gross, S.Oberstedt

Ternary Fission Yields of 241Pu(nth, f)

NUCLEAR REACTIONS 241Pu(n, F), E=thermal; measured fission fragments isotopic yields; deduced evidence for 11Li, 14Be, 19C. Recoil separator.

doi: 10.1016/S0375-9474(99)00115-3
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23098.


1999TS07      Nucl.Phys. A658, 217 (1999)

I.Tsekhanovich, H.O.Denschlag, M.Davi, Z.Buyukmumcu, M.Wostheinrich, F.Gonnenwein, S.Oberstedt, H.R.Faust

Mass and Charge Distributions in the Very Asymmetric Thermal Neutron Induced Fission of the Odd-Z Nucleus 242mAm

NUCLEAR REACTIONS 242mAm(n, F), E=thermal; measured fission fragment isotopic yields, mass and charge distributions; deduced odd-even effects.

doi: 10.1016/S0375-9474(99)00338-3
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23580.


1999WO03      Acta Phys.Slovaca 49, 117 (1999)

M.Wostheinrich, R.Pfister, F.Gonnenwein, H.O.Denschlag, H.Faust, S.Oberstedt

Yields of Ternary Particles from the Reactions 229Th(nth, f), 233U(nth, f) and 239Pu(nth, f)

NUCLEAR REACTIONS 229Th, 233U, 239Pu(n, F), E=thermal; measured ternary fission fragments yields, energy distributions.

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22734.


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