NSR Query Results
Output year order : Descending NSR database version of March 21, 2024. Search: Author = A.Oberstedt Found 53 matches. 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
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
2021OB01 Phys.Rev. C 104, 024611 (2021) 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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
2007OB01 Nucl.Instrum.Methods Phys.Res. A570, 51 (2007) 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
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
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
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
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
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
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
2002BE53 Nucl.Phys. A701, 363c (2002) U.C.Bergmann, L.Axelsson, J.R.J.Bennett, M.J.G.Borge, R.Catherall, P.V.Drumm, V.N.Fedoseyev, C.Forssen, L.M.Fraile, H.O.U.Fynbo, U.Georg, T.Giles, S.Grevy, P.Hornshoj, B.Jonson, O.C.Jonsson, U.Koster, J.Lettry, K.Markenroth, F.M.Marques, V.I.Mishin, I.Mukha, T.Nilsson, G.Nyman, A.Oberstedt, H.L.Ravn, K.Riisager, G.Schrieder, V.Sebastian, H.Simon, O.Tengblad, F.Wenander, K.Wilhelmsen Rolander Light Exotic Isotopes: Recent beam developments and physics applications at ISOLDE RADIOACTIVITY 12Be(β-), (β-n); measured Eβ, β-delayed neutron spectra, T1/2. 14Be(β-); measured β-delayed neutrons, charged particles; deduced decay branching ratios. 9C(β+); measured Ep, Eα following daughter nucleus decay.
doi: 10.1016/S0375-9474(01)01611-6
2002KL14 Nucl.Instrum.Methods Phys.Res. A489, 282 (2002) J.Klug, J.Blomgren, A.Atac, B.Bergenwall, S.Dangtip, K.Elmgren, C.Johansson, N.Olsson, S.Pomp, A.V.Prokofiev, J.Rahm, U.Tippawan, O.Jonsson, L.Nilsson, P.-U.Renberg, P.Nadel-Turonski, A.Ringbom, A.Oberstedt, F.Tovesson, V.Blideanu, C.Le Brun, J.F.Lecolley, F.R.Lecolley, M.Louvel, N.Marie, C.Schweitzer, C.Varignon, Ph.Eudes, F.Haddad, M.Kerveno, T.Kirchner, C.Lebrun, L.Stuttge, I.Slypen, A.N.Smirnov, R.Michel, S.Neumann, U.Herpers SCANDAL - A Facility for Elastic Neutron Scattering Studies in the 50-130 MeV Range NUCLEAR REACTIONS 12C(n, p), E=96 MeV; 208Pb(n, pX), E=96 MeV; measured Ep. 12C(n, n'), E=96 MeV; measured excitation energy spectrum. 1H(n, n), E=96 MeV; measured σ(θ).
doi: 10.1016/S0168-9002(02)00576-4
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
2001BE51 Nucl.Phys. A692, 427 (2001) U.C.Bergmann, M.J.G.Borge, R.Boutami, L.M.Fraile, H.O.U.Fynbo, P.Hornshoj, B.Jonson, K.Markenroth, I.Martel, I.Mukha, T.Nilsson, G.Nyman, A.Oberstedt, Y.Prezado Alonso, K.Riisager, H.Simon, O.Tengblad, F.Wenander, K.Wilhelmsen Rolander, and the ISOLDE Collaboration On the β-Decay of 9C RADIOACTIVITY 9C(β+) [from O, Ca(p, X)]; measured β-delayed Ep, Eα, pαα-coin, angular correlations. 9B deduced β-branching strengths, decay mechanism features. A=9; deduced β-decay asymmetry. Double-sided silicon strip detectors, mass-separated source.
doi: 10.1016/S0375-9474(01)00650-9
2001OB04 Nucl.Phys. A690, 284c (2001) Fusion-Evaporation Reactions and the Nuclear Equation of State
doi: 10.1016/S0375-9474(01)00961-7
1999BE53 Nucl.Phys. A658, 129 (1999) U.C.Bergmann, L.Axelsson, M.J.G.Borge, V.N.Fedoseyev, C.Forssen, H.O.U.Fynbo, S.Grevy, P.Hornshoj, Y.Jading, B.Jonson, U.Koster, K.Markenroth, F.M.Marques, V.I.Mishin, T.Nilsson, G.Nyman, A.Oberstedt, H.L.Ravn, K.Riisager, G.Schrieder, V.Sebastian, H.Simon, O.Tengblad, F.Wenander, K.Wilhelmsen Rolander, and the ISOLDE Collaboration New Information on β-Delayed Neutron Emission from 12, 14Be RADIOACTIVITY 12,14Be(β-) [from 1 GeV p on UC target]; measured β-delayed neutrons, βn and nn time correlations. 12,14Be deduced neutron emission probabilities, branching ratios. Neutron long counters, mass-separated sources.
doi: 10.1016/S0375-9474(99)00348-6
1997LA11 Phys.Rev. C55, 1900 (1997) L.Lassen, P.von Neumann-Cosel, A.Oberstedt, G.Schrieder Limiting Excitation Energy in Fusion-Evaporation Reactions ( Question ) NUCLEAR REACTIONS 40Ca(40Ar, X), E=5-30 MeV/nucleon; measured fusion-evaporation residue(n)-coin, neutron multiplicities, excitation energies per nucleon; deduced such studies cannot resolve hot nuclei limiting excitation energy related question.
doi: 10.1103/PhysRevC.55.1900
1996OB03 Nucl.Instrum.Methods Phys.Res. A370, 206 (1996) A.Oberstedt, P.Davidsson, P.Delsing, B.Jonson, R.Kroc, G.Nyman Silicon Microcalorimeters for High Energy Resolution Spectroscopy RADIOACTIVITY 109Cd(EC); measured I(ce), γ spectra; deduced detectors sensitivity. Si microcalorimeters.
doi: 10.1016/0168-9002(95)01090-4
1994OB04 Nucl.Instrum.Methods Phys.Res. A340, 379 (1994) LISA - a Powerful Program Package for Listmode and Spectral Data Analysis
doi: 10.1016/0168-9002(94)90115-5
1993GE08 Z.Phys. A347, 117 (1993) R.Gentner, D.Bellm, L.Lassen, A.Oberstedt, A.Giorni, A.Lleres, J.-B.Viano, B.Cheynis, B.Chambon, D.Drain Light-Particle Emission versus Evaporation Residue Formation in Collisions of 40Ar on (nat)Ca at 30 MeV/u NUCLEAR REACTIONS 40Ca(40Ar, X), E=30 MeV/nucleon; measured (evaporation residue)n-, (evaporation residue)(light charged particle)-coin; deduced light particle multiplicities, missing mass interrelation. Quantal phase space model. Thick self-supporting Ca foil target.
doi: 10.1007/BF01284678
1992OB04 Nucl.Phys. A548, 525 (1992) A.Oberstedt, P.von Neumann-Cosel, A.Richter, W.Rosch, G.Schrieder, D.Bellm, R.Gentner, K.Keller, L.Lassen, U.Seibert, D.Hilscher, M.Lehmann Light-Particle Emission and Heavy-Residue Formation in the Fusion-Like Reactions 40Ar + 40Ca at 15 MeV/u and 28Si + 28Si at 20 MeV/u NUCLEAR REACTIONS 40Ar(40Ca, X), E=15 MeV/nucleon; 28Si(28Si, X), E=20 MeV/nucleon; measured evaporation residue σ(A, Z, multiplicity, θ), light particle σ(E, θ); deduced light particle equilibrium, preequilibrium multiplicities. Discussed mass balance, residue formation. Quantal phase space model.
doi: 10.1016/0375-9474(92)90699-K
1985OB02 Phys.Rev. C32, 2158 (1985) A.Oberstedt, D.Bohle, G.Kuchler, A.Richter, E.Spamer, C.Rangacharyulu Ground State M1 Transition Strength of the 1.115 MeV Level in 65Cu NUCLEAR REACTIONS 65Cu(e, e'), E=24.6-140 MeV; measured σ(E(e')), form factors. 65Cu transitions deduced B(λ), Γγ(M1).
doi: 10.1103/PhysRevC.32.2158
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