NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = I.Itkis Found 64 matches. 2024KO05 Phys.Rev. C 109, 034616 (2024) E.M.Kozulin, G.N.Knyazheva, A.V.Karpov, V.V.Saiko, A.A.Bogachev, I.M.Itkis, K.V.Novikov, I.V.Vorobiev, I.V.Pchelintsev, E.O.Savelieva, R.S.Tikhomirov, M.G.Itkis, Yu.Ts.Oganessian Detailed study of multinucleon transfer features in the 136Xe + 238U reaction
doi: 10.1103/PhysRevC.109.034616
2023BA37 Phys.Rev. C 108, 064601 (2023) T.Banerjee, E.M.Kozulin, G.N.Knyazheva, A.A.Bogachev, I.M.Itkis, E.Vardaci, A.Di Nitto, M.Ashaduzzaman, P.A.Setaro, G.Alifano Evolution of multimodal fission with energy in 238Np populated by 6Li + 232Th
doi: 10.1103/PhysRevC.108.064601
2023KO11 Phys.Atomic Nuclei 86, 56 (2023) E.M.Kozulin, A.A.Bogachev, G.N.Knyazheva, V.V.Saiko, I.M.Itkis, K.V.Novikov, D.Kumar, Pushpendra P.Singh Exclusive Mass-Energy Distributions of the Fast Fission Fragments in the 40Ca+144Sm Reaction NUCLEAR REACTIONS 144Sm(40Ca, F), E=212, 231, 244, 277 MeV; measured fission fragments. 184Pb; deduced partial σ, mass and total kinetic energy (TKE), mass-energy distributions of binary fragments, mass-energy distributions for extracted fast fission fragments. The double-arm time-of-flight spectrometer CORSET, the U400 cyclotron at the Flerov Laboratory of Nuclear Reactions, Dubna, Russia.
doi: 10.1134/S1063778823020126
2022BA11 Phys.Rev. C 105, 044614 (2022) T.Banerjee, E.M.Kozulin, N.T.Burtebayev, K.B.Gikal, G.N.Knyazheva, I.M.Itkis, K.V.Novikov, T.N.Kvochkina, Y.S.Mukhamejanov, A.N.Pan Search for possible fission modes at high excitation energies in 254Fm NUCLEAR REACTIONS 238U(16O, X)254Fm, E=89, 101 MeV; measured reaction products, fission fragments; deduced mass–total kinetic energy and mass distributions of fission fragments, mass distribution widths, fission fragment yields. 254Fm; deduced fission modes. Systematics of the fission modes obtained in 238U(16O, X)254Fm, 238U(18O, X)256Fm, 208Pb(18O, X)226Th, 232Th(4He, X)236U reactions. Double-arm time-of-flight spectrometer CORSET at U400 cyclotron (JINR).
doi: 10.1103/PhysRevC.105.044614
2022BA16 Physics of Part.and Nuclei 53, 135 (2022) T.Banerjee, E.M.Kozulin, K.B.Gikal, I.M.Itkis, G.N.Knyazheva, N.I.Kozulina, K.V.Novikov, I.N.Diatlov, I.V.Pchelintsev, A.N.Pan, I.V.Vorobiev Super-Asymmetric Fission Mode in 254Fm Nucleus Populated by 16O + 238U Reaction RADIOACTIVITY 254Fm(SF) [from 238U(16O, X), E=89, 101 MeV]; measured decay products; deduced mass and total kinetic energy distributions. Comparison with theoretical calculations. The double-arm time-of-flight (TOF) spectrometer CORSET at the Flerov Laboratory of Nuclear Reactions (Dubna, Russia).
doi: 10.1134/S1063779622020150
2022BA46 Phys.Atomic Nuclei 85, 770 (2022) T.Banerjee, E.M.Kozulin, G.N.Knyazheva, I.M.Itkis Search for the Fission Modes in 238Np Nucleus Populated by 6Li + 232Th NUCLEAR REACTIONS 232Th(6Li, X)238Np, E=28.5, 40 MeV; measured reaction products; deduced mass-total kinetic energy (M-TKED) of fission fragments. Comparison with the multi-modal random neck rupture (MM-RNR) model. The CORSET set up at the Flerov Laboratory of Nuclear Reactions.
doi: 10.1134/S1063778823010076
2022IT02 Eur.Phys.J. A 58, 178 (2022) M.G.Itkis, G.N.Knyazheva, I.M.Itkis, E.M.Kozulin Experimental investigation of cross sections for the production of heavy and superheavy nuclei NUCLEAR REACTIONS 208Pb(48Ca, X)256No, 206Pb(44Ca, X)250No, 206Pb(40Ca, X), 208Pb(50Ti, X)256No/258Rf, 208Pb(58Fe, X)266Hs, 208Pb(86Kr, X)294Og, 208Pb(136Xe, X)344136, E not given; measured reaction products; deduced yields, σ, mass-angular distributions of binary fragments, fusion probability in cold reactions at energies above the Coulomb barrier at excitation energy of about 40 MeV from experimental ER cross sections. CORSET spectrometer, CUBE setup, Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, Dubna, Russia.
doi: 10.1140/epja/s10050-022-00806-7
2022KO03 Phys.Rev. C 105, 014607 (2022) E.M.Kozulin, G.N.Knyazheva, I.M.Itkis, M.G.Itkis, Y.S.Mukhamejanov, A.A.Bogachev, K.V.Novikov, V.V.Kirakosyan, D.Kumar, T.Banerjee, M.Cheralu, M.Maiti, R.Prajapat, R.Kumar, G.Sarkar, W.H.Trzaska, A.N.Andreyev, I.M.Harca, A.Mitu, E.Vardaci Fission of 180, 182, 183Hg* and 178Pt* nuclei at intermediate excitation energies NUCLEAR REACTIONS 142Nd(36Ar, F)178Pt*, E=158, 169, 181 MeV; 144Sm(36Ar, F)180Hg*, E=158, 181 MeV; 142,143Nd(40Ca, F)182Hg*/183Hg*, E=158, 169, 181 MeV; measured binary reaction products in coincidence mode using the double-arm time-of-flight spectrometer CORSET, consisting of a compact start detector and a position-sensitive stop detector of microchannel plates at the U400 cyclotron Flerov laboratory of Nuclear Reactions, Dubna; deduced mass-energy distributions of fission fragments at energies near and above the Coulomb barrier, mass-total kinetic energy (M-TKE) distribution contours of primary binary fragments, mass yields, fission fragments mass yields, asymmetric fission of preactinide nuclei, existence of well-deformed proton shell at Z≈36 and a less deformed proton shell at Z≈46. Comparison with previous experimental results.
doi: 10.1103/PhysRevC.105.014607
2022KO05 Phys.Rev. C 105, 024617 (2022) E.M.Kozulin, G.N.Knyazheva, A.A.Bogachev, V.V.Saiko, A.V.Karpov, I.M.Itkis, K.V.Novikov, Y.S.Mukhamejanov, I.V.Pchelintsev, I.V.Vorobiev, T.Banerjee, M.Cheralu, P.P.Singh Experimental study of fast fission and quasifission in the 40Ca + 208Pb reaction leading to the formation of the transfermium nucleus 248No NUCLEAR REACTIONS 208Pb(40Ca, X)248No*, E=223, 250, 284 MeV; measured fission fragments; deduced mass and energy distributions of fission fragments, average total kinetic energies, fast fission σ(E), compound nucleus fission σ(E), 248No compound nucleus formation probability. Double-arm time-of-flight spectrometer CORSET at U400 cyclotron (JINR).
doi: 10.1103/PhysRevC.105.024617
2022KU35 Phys.Atomic Nuclei 85, 756 (2022) K.A.Kulkov, E.M.Kozulin, A.A.Bogachev, G.N.Knyazheva, I.M.Itkis, K.V.Novikov, I.V.Vorobiev, I.V.Pchelintsev, N.S.Bublikova, M.G.Voronyuk Experimental Study of Mass-Energy Distribution of Fragments Produced in the 90Zr + 90Zr Reaction Leading to the Formation of 180Hg at Energies near the Coulomb Barrier NUCLEAR REACTIONS 90Zr(90Zr, X)180Hg, E=378 MeV; measured reaction products; deduced mass-energy distributions of binary fragments. CORSET double-arm time-of-flight spectrometer.
doi: 10.1134/S1063778823010325
2022OS01 Phys.Atomic Nuclei 85, 748 (2022) A.A.Ostroukhov, E.M.Kozulin, N.T.Burtebayev, A.A.Bogachev, K.B.Gikal, I.M.Itkis, G.N.Knyazheva, T.N.Kvochkina, Y.S.Mukhamejanov, K.V.Novikov, A.N.Pan Investigation of Fission Modes of 248Cf and 254, 256Fm Nuclei Produced in Heavy-Ion Reactions NUCLEAR REACTIONS 232Th(16O, X)248Cf, 238U(16O, X), (18O, X)254Fm/256Fm, E=40-56 MeV; measured reaction products; deduced total kinetic energy (TKE) of fragments, mass distributions of fission fragments, mass and energy distributions of fission fragments. Comparison with available data. CORSET double-arm time-of-flight spectrometer.
doi: 10.1134/S1063778823010428
2022SE02 Phys.Rev. C 105, 014627 (2022) A.Sen, T.K.Ghosh, E.M.Kozulin, I.M.Itkis, G.N.Knyazheva, K.V.Novikov, S.Bhattacharya, K.Banerjee, C.Bhattacharya Quasifission in 84, 86Kr-induced reactions populating superheavy elements NUCLEAR REACTIONS 198Pt(84Kr, F), E(cm)/E(Bass)=1.14; 198Pt(86Kr, F), 197Au(86Kr, F), E(cm)/E(Bass)=1.12; measured binary reaction products in coincidence mode using the double-arm time-of-flight spectrometer CORSET, consisting of a compact start detector and a position-sensitive stop detector of microchannel plates at the U400 cyclotron Flerov laboratory of Nuclear Reactions, Dubna; deduced mass-energy distributions of fission-like events, mass-total kinetic energy (M-TKE) distributions above barrier energies, TKE distributions of the symmetric fragments. Comparison with two-center shell-model calculations, and with previous experimental results for other reaction systems. Relevance to influence of various entrance channel parameters and isospin differences on the quasifission dynamics process, leading to a more symmetric mass split distribution.
doi: 10.1103/PhysRevC.105.014627
2021BO22 Phys.Rev. C 104, 024623 (2021) A.A.Bogachev, E.M.Kozulin, G.N.Knyazheva, I.M.Itkis, M.G.Itkis, K.V.Novikov, D.Kumar, T.Banerjee, I.N.Diatlov, M.Cheralu, V.V.Kirakosyan, Y.S.Mukhamejanov, A.N.Pan, I.V.Pchelintsev, R.S.Tikhomirov, I.V.Vorobiev, M.Maiti, R.Prajapat, R.Kumar, G.Sarkar, W.H.Trzaska, A.N.Andreyev, I.M.Harca, E.Vardaci Asymmetric and symmetric fission of excited nuclei of 180, 190Hg and 184, 192, 202Pb formed in the reactions with 36Ar and 40, 48Ca ions NUCLEAR REACTIONS 144Sm(36Ar, X)180Hg*, E=158, 181 MeV; 154Sm(36Ar, X)190Hg*, E=158, 181 MeV; 144Sm(40Ca, X)184Pb*, E=180, 190 MeV; 144Sm(48Ca, X)192Pb*, E=182, 188, 202 MeV; 154Sm(48Ca, X)202Pb*, E=173, 183, 194 MeV; measured binary reaction products in coincidence mode from the excited states of the compound nuclei using the double-arm time-of-flight spectrometer CORSET at the U400 cyclotron facility of Flerov Laboratory of Nuclear Reactions (FLNR), Dubna; deduced mass-total kinetic energy (TKE) distributions of binary fragments, mass and TKE distributions of fission fragments, contributions of symmetric and asymmetric fissions, well deformed proton shell at Z≈36 and less deformed proton shell at Z≈46.
doi: 10.1103/PhysRevC.104.024623
2021BO23 Bull.Rus.Acad.Sci.Phys. 85, 1080 (2021), Erratum Bull.Rus.Acad.Sci.Phys. 86, 1557(2022) A.A.Bogachev, E.M.Kozulin, G.N.Knyazheva, I.M.Itkis, K.V.Novikov, T.Banerjee, M.Cheralu, M.G.Itkis, E.Mukhamedzhanov, D.Kumar, A.Pan, I.V.Pchelintsev, I.V.Vorobev, W.H.Trzaska, E.Vardaci, A.di Nitto, S.V.Khlebnikov, I.Harka, A.Andreyev Study of Binary Processes in the Reactions of 36Ar + 144, 154Sm and 68Zn + 112Sn Leading to the Formation of Neutron-Deficient Compound 180, 190Hg Nuclei NUCLEAR REACTIONS 144Sm(36Ar, X)180Hg, E=158 MeV; 154Sm(36Ar, X)190Hg, E=181 MeV; 112Sn(68Zn, X)180Hg, E=300 MeV; measured reaction products; deduced fission fragment mass yields, energy distributions; deduced asymmetric and symmetric fission.
doi: 10.3103/S1062873821100105
2021GA34 Bull.Rus.Acad.Sci.Phys. 85, 1080 (2021) E.I.Galkina, E.M.Kozulin, G.N.Knyazheva, I.M.Itkis, A.A.Bogachev, I.N.Diatlov, M.Cheralu, D.Kumar, N.I.Kozulina, K.V.Novikov, A.N.Pan, I.V.Pchelintsev, I.V.Vorobiev, W.H.Trzaska, S.Heinz, B.Lommel, E.Vardaci, S.Spinosa, A.Di Nitto, A.Pulcini, C.Borcea, I.Harca Investigating Mass-Energy Distributions of Fragments Produced in the 32S + 232Th → 264Sg Reaction at Energies Below and Near the Coulomb Barrier NUCLEAR REACTIONS 232Th(32S, X)264Sg, E=165, 181, 200 MeV; measured reaction products; deduced mass-energy distributions of fragments, contribution from the quasifission process. CORSET double-arm time-of-flight spectrometer.
doi: 10.3103/S1062873821100154
2021KO25 Phys.Lett. B 819, 136442 (2021) E.M.Kozulin, E.Vardaci, W.H.Trzaska, A.A.Bogachev, I.M.Itkis, A.V.Karpov, G.N.Knyazheva, K.V.Novikov Evidence of quasifission in the 180Hg composite system formed in the 68Zn + 112Sn reaction NUCLEAR REACTIONS 112Sn(68Zn, X)180Hg, E=300 MeV; measured reaction products; deduced total kinetic energy, σ(θ), yields. K-130 cyclotron, Jyvaskyla University, Finland.
doi: 10.1016/j.physletb.2021.136442
2021KU32 Bull.Rus.Acad.Sci.Phys. 85, 1479 (2021) D.Kumar, E.M.Kozulin, G.N.Knyazheva, M.Maiti, I.M.Itkis, A.A.Bogachev, K.V.Novikov, M.Cheralu, T.Banerjee, I.N.Diatlov, N.I.Kozulina, I.V.Pchelintsev, I.V.Vorobiev, A.N.Pan, R.Prajapat, R.Kumar, E.Vardaci, W.H.Trzaska, A.Andreyev, I.M.Harca Investigation on Competing Fission Modes in 178Pt* Produced by 36Ar + 142Nd Reaction up to High Excitation Energies NUCLEAR REACTIONS 142Nd(36Ar, X)178Pt, E=158-222 MeV; measured fission products, TOF; deduced mass-energy distributions of binary fission fragments, total kinetic energies, asymmetric and symmetric modes. Comparison with theoretical systematics. The double arm time-of-flight spectrometer CORSET.
doi: 10.3103/S1062873821120194
2020KO09 Eur.Phys.J. A 56, 6 (2020) E.M.Kozulin, I.M.Harca, E.Vardaci, I.Matea, A.Maj, I.Itkis, G.Knyazheva, K.Novikov, O.Dorvaux, M.Ciemala, S.Brambilla, N.Kozulina, I.V.Kolesov, E.Saveleva, V.V.Kirakosyan, C.Schmitt, C.Borcea, S.Calinescu, C.Petrone, M.Ashaduzzaman, B.DeCanditiis, A.Pulcini, D.Quero, P.Rath, A.di Nitto, G.La Rana, A.Bracco, F.Camera, O.Stezowski, J.Wilson, D.Verney, W.H.Trzaska, for the SPS and the PARIS collaboration Features of the Fission Fragments Formed in the Heavy Ion induced 32S +197Au reaction near the interaction barrier
doi: 10.1140/epja/s10050-019-00019-5
2020KU24 Bull.Rus.Acad.Sci.Phys. 84, 1001 (2020) D.Kumar, E.M.Kozulin, M.Cheralu, G.N.Knyazheva, I.M.Itkis, M.G.Itkis, K.V.Novikov, A.A.Bogachev, N.I.Kozulina, I.N.Diatlov, I.V.Pchelintsev, I.V.Vorobiev, T.Banerjee, Y.S.Mukhamejanov, A.N.Pan, V.V.Saiko, P.P.Singh, R.N.Sahoo, A.N.Andreyev, D.M.Filipescu, M.Maiti, R.Prajapat, R.Kumar Study of Mass-Asymmetric Fission of 180, 190Hg Formed in the 36Ar + 144, 154Sm Reactions NUCLEAR REACTIONS 36Ar(144Sm, X), (154Sm, X)180Hg/190Hg, E= 158, 181, 222 MeV; measured reaction products; deduced asymmetric fission of 180,190Hg with the most probable masses of light and heavy fragments of 79 and 101 amu, and 84 and 106 amu, respectively. Two components manifesting the symmetric and asymmetric fission modes are observed in the kinetic energy distributions.
doi: 10.3103/S1062873820080213
2020NO05 Bull.Rus.Acad.Sci.Phys. 84, 495 (2020) K.V.Novikov, E.M.Kozulin, G.N.Knyazheva, I.M.Itkis, A.V.Karpov, M.G.Itkis, I.N.Diatlov, M.Cheralu, B.Gall, Z.Asfari, N.I.Kozulina, D.Kumar, I.V.Pchelintsev, V.N.Loginov, A.E.Bondarchenko, P.P.Singh, I.V.Vorobiev, S.Heinz, W.H.Trzaska, E.Vardaci, N.Tortorelli, C.Borcea, I.Harca Formation and Decay of the Composite System Z = 120 in Reactions with Heavy Ions at Energies Near the Coulomb Barrier
doi: 10.3103/S1062873820040206
2020NO09 Phys.Rev. C 102, 044605 (2020) K.V.Novikov, E.M.Kozulin, G.N.Knyazheva, I.M.Itkis, M.G.Itkis, A.A.Bogachev, I.N.Diatlov, M.Cheralu, D.Kumar, N.I.Kozulina, A.N.Pan, I.V.Pchelintsev, I.V.Vorobiev, W.H.Trzaska, S.Heinz, H.M.Devaraja, B.Lommel, E.Vardaci, S.Spinosa, A.Di Nitto, A.Pulcini, S.V.Khlebnikov, P.P.Singh, Ru.N.Sahoo, B.Gall, Z.Asfari, C.Borcea, I.Harca, D.M.Filipescu Investigation of fusion probabilities in the reactions with 52, 54Cr, 64Ni, and 68Zn ions leading to the formation of Z = 120 superheavy composite systems NUCLEAR REACTIONS 248Cm(52Cr, X)300120*, E=290, 304-MeV; 248Cm(54Cr, X)302120*, E=296 MeV; 232Th(68Zn, X)300120*, E=335 MeV; measured binary reaction products in coincidence by the double-arm time-of-flight spectrometer CORSET, the first two reactions using 248Cm target at the U-400 cyclotron facility of FLNR-Dubna, and the experiment with 232Th target at the University of Jyvaskyla K-130 cyclotron facility; deduced yield and TKE matrices of binary fragments as functions of mass and energy, capture cross sections as a function of effective fissility parameter, excitation energy of primary fragments as function of fragment mass, contributions of symmetric fragments to the capture cross sections, fusion probability as function of the mean fissility parameter, and production σ for the formation of Z=120 superheavy nucleus (SHN). 238U(64Ni, X)302120*, E=335 MeV; compared results of this experiment, reported in 2010Ko16, at Jyvaskyla with the data in the present experiments. 248Cm(54Cr, X) reaction determined to be the most favorable for the production of Z=120 element.
doi: 10.1103/PhysRevC.102.044605
2020VA06 Phys.Rev. C 101, 064612 (2020) E.Vardaci, A.Pulcini, E.M.Kozulin, I.Matea, D.Verney, A.Maj, C.Schmitt, I.M.Itkis, G.N.Knyazheva, K.Novikov, N.Kozulina, I.M.Harca, I.V.Kolesov, K.Saveleva, V.V.Kirakosyan, O.Dorvaux, M.Ciemala, S.Brambilla, M.Ashaduzzaman, B.De Canditiis, A.Di Nitto, D.Quero, C.Parascandolo, D.Pierroutsakou, P.K.Rath, G.Sposito, G.La Rana, A.Bracco, F.Camera, O.Stezowski, C.Borcea, S.Calinescu, C.Petrone, J.Wilson Using γ rays to disentangle fusion-fission and quasifission near the Coulomb barrier: A test of principle in the fusion-fission and quasielastic channels NUCLEAR REACTIONS 197Au(32S, X), E=166 MeV; measured fragments and γ rays in singles, (fragment)(fragment)-coin, prompt γ(binary fragments)-coin using the two-arm TOF spectrometer CORSET time-of-flight spectrometer for fragments, ORGAM array of Ge detectors, and PARIS array of scintillation detectors for γ rays at the ALTO facility of IPN-Orsay; deduced total kinetic energy and mass yield (TKE-mass) distributions, γ-fold and multiplicity distributions. Comparison with theoretical calculations using GEF code. Discussion of γ multiplicity as a method for differentiating fusion-fission (FF) and quasifission (QF) events. 129La; deduced 756-, 869-, and 888-keV γ transition between high angular momentum states in coincidence with fission fragments.
doi: 10.1103/PhysRevC.101.064612
2019KO03 Phys.Rev. C 99, 014616 (2019) E.M.Kozulin, G.N.Knyazheva, T.K.Ghosh, A.Sen, I.M.Itkis, M.G.Itkis, K.V.Novikov, I.N.Diatlov, I.V.Pchelintsev, C.Bhattacharya, S.Bhattacharya, K.Banerjee, E.O.Saveleva, I.V.Vorobiev Fission and quasifission of the composite system Z=114 formed in heavy-ion reactions at energies near the Coulomb barrier NUCLEAR REACTIONS 232Th(52Cr, X)284Fl*, E=265, 288, 302, 320 MeV; 198Pt(86Kr, X)284Fl*, E=465 MeV; measured mass and energy distributions of binary fragments detected in coincidence using the double-arm time-of-flight spectrometer CORSET at FLNR-JINR-Dubna facility. 232Th(52Cr, X)284Fl*, E=265, 288, 302, 320 MeV; 198Pt(86Kr, X)284Fl*, E=465 MeV; 238U(48Ti, X)286Fl*, E=247, 258, 271 MeV; 244Pu(48Ca, X)292Fl*, E=226-244 MeV; 238U(48Ca, X)286Cn*, E=228-238 MeV; deduced mass and energy distributions of binary fragments, contribution from symmetric fragments to cross section, capture σ, cross sections of symmetric fragments, TKE distributions. Data for 48Ca and 48Ti beams are from authors' previous works 2014Ko45 and 2016Ko35. 284Fl; calculated potential energy surface as a function of elongation and mass asymmetry.
doi: 10.1103/PhysRevC.99.014616
2019VA16 J.Phys.(London) G46, 103002 (2019) E.Vardaci, M.G.Itkis, I.M.Itkis, G.Knyazheva, E.M.Kozulin Fission and quasifission toward the superheavy mass region NUCLEAR REACTIONS 208Pb, 209Bi(48Ca, n), (50Ti, n), (54Cr, n), (58Fe, n), (64Ni, n), (62Ni, n), (70Zn, n), (76Ge, X), (82Se, X), (226Ra, X), (208Pb, X), (210Po, X), (222Rn, X), (232Th, X), (238U, X), (244Pu, X), (248Cm, X), (249Bk, X), (249Cf, X), E ∼ 15 MeV; analyzed available data; calculated σ.
doi: 10.1088/1361-6471/ab3118
2018GI09 Bull.Rus.Acad.Sci.Phys. 82, 716 (2018) K.B.Gikal, E.M.Kozulin, I.M.Itkis, M.G.Itkis, G.N.Knyazheva, K.V.Novikov, A.N.Pan Searching for the Superasymmetric Fission Mode of 248Cf, 254Fm, and 260No in Reactions 22Ne + 232Th, 238U; 16O + 232Th, 238U NUCLEAR REACTIONS 232Th, 238U(16O, f), (22Ne, f), E*=40-45 MeV; measured fission products; deduced fission fragments mass distribution, TKE for 248Cf, 254Fm, 258,262No and bimodal fission for 260No* at E*=41 MeV with both fission fragments close to double-magic 132Sn in the symmetric case.
doi: 10.3103/S1062873818060114
2018IT06 Bull.Rus.Acad.Sci.Phys. 82, 643 (2018) I.M.Itkis, G.N.Knyazheva, E.M.Kozulin Inverse Quasifission in 156, 160Gd + 186W Reactions NUCLEAR REACTIONS 186W(156Gd, x), E=878 MeV;186W(160Gd, x), E=860, 935 MeV; measured reaction products; deduced energy loss distribution of fragments, σ(θ), σ vs TKEL, mass distributions of target-like fragments, enhanced yields of production of lead-like fragments, mainly at 935 MeV 160Gd, possibly due to orientation effects.
doi: 10.3103/S106287381806014X
2018PA30 Bull.Rus.Acad.Sci.Phys. 82, 721 (2018) A.N.Pan, E.M.Kozulin, I.M.Itkis, M.G.Itkis, G.N.Knyazheva, K.B.Gikal, K.V.Novikov, T.N.Kvochkina, N.T.Burtebayev, K.V.Covalchuk Proton-Induced Fission of 232Th at Low and Intermediate Energies NUCLEAR REACTIONS 232Th(p, f), E=7-55 MeV; measured fission fragments mass distribution (yield), energy (TKE) at K-130 cyclotron at Jyvaskyla with fission fragments ToF measured by CORSET spectrometer at 13-55 MeV and at U-150M cyclotron at Almaty at 7, 10, 13 MeV; deduced symmetric and asymmetric fission modes in mass-energy distributions at all energies with yield of symmetric products falling with increasing proton energy, deduced indication of superasymmetric fission mode associated with increased yield of fragments with masses in region of A≈70; compared with published mass distributions from 235U, 239Pu, 242Am, 245Cm, 249Cf(n, f), E=thermal.
doi: 10.3103/S1062873818060229
2017KO39 Phys.Rev. C 96, 064621 (2017) E.M.Kozulin, V.I.Zagrebaev, G.N.Knyazheva, I.M.Itkis, K.V.Novikov, M.G.Itkis, S.N.Dmitriev, I.M.Harca, A.E.Bondarchenko, A.V.Karpov, V.V.Saiko, E.Vardaci Inverse quasifission in the reactions 156, 160Gd + 186W NUCLEAR REACTIONS 186W(156Gd, X), E=878 MeV; 186W(160Gd, X), E=860, 935 MeV; measured Mass, energy, yields, σ(TKEL), and angular distributions of primary binary fragments using the double-arm time-of-flight spectrometer CORSET at the U400 cyclotron of FLNR-JINR-Dubna facility; calculated potential energy surfaces. Relevance to production of new neutron-enriched heavy nuclei.
doi: 10.1103/PhysRevC.96.064621
2016GI07 Phys.Atomic Nuclei 79, 1367 (2016) K.B.Gikal, E.M.Kozulin, A.A.Bogachev, N.T.Burtebaev, A.V.Edomskiy, I.M.Itkis, M.G.Itkis, G.N.Knyazhev, K.V.Kovalchuk, T.N.Kvochkina, E.Piasecki, V.A.Rubchenya, S.K.Sahiev, W.H.Trzaska, E.Vardaci Proton induced fission of 232Th at intermediate energies NUCLEAR REACTIONS 232Th(p, f), E=7, 10, 13, 20, 40, 55 MeV; measured fission fragments mass, energy using two ToF arms of the CORSET spectrometer, Ep, Ip using four Si surface-barrier detectors, En, In(θ) using 8 liquid NE213, n(fragment)-coin; deduced mass-energy distribution of the fission fragments, TKE, yield, pre-neutron mass distribution of fission fragments, pre-equilibrium neutron multiplicity, pres-scission neutron multiplicity (from compound nucleus), σ, division of total σ between symmetric and asymmetric fission models, σ(θ, En).
doi: 10.1134/S1063778816090040
2016KO33 Eur.Phys.J. A 52, 293 (2016) E.M.Kozulin, E.Vardaci, I.M.Harca, C.Schmitt, I.Itkis, G.Knyazheva, K.Novikov, A.Bogachev, S.Dmitriev, T.Loktev, F.Azaiez, I.Matea, D.Verney, A.Gottardo, O.Dorvaux, J.Piot, G.Chubarian, W.H.Trzaska, F.Hanappe, C.Borcea, S.Calinescu, C.Petrone Challenging fission dynamics around the barrier: The case of 34S + 186W NUCLEAR REACTIONS 186W(34S, F), E=160 MeV; measured fission-fragment-like products, Eγ, Iγ, γ multiplicity using double-arm detection system CORSET; deduced fragment mass distribution, TKE, mass-gated γ-ray energy spectra.
doi: 10.1140/epja/i2016-16293-8
2016KO35 Phys.Rev. C 94, 054613 (2016) E.M.Kozulin, G.N.Knyazheva, K.V.Novikov, I.M.Itkis, M.G.Itkis, S.N.Dmitriev, Yu.Ts.Oganessian, A.A.Bogachev, N.I.Kozulina, I.Harca, W.H.Trzaska, T.K.Ghosh Fission and quasifission of composite systems with Z = 108 - 120: Transition from heavy-ion reactions involving S and Ca to Ti and Ni ions NUCLEAR REACTIONS 238U(48Ti, X), E=247, 258, 271 MeV; measured mass and energy distributions of binary fragments detected in coincidence using the double-arm time-of-flight spectrometer CORSET at FLNR-JINR-Dubna facility; deduced fusion probabilities, capture and CN cross sections for fissionlike fragments. Comparison with cross sections measured earlier for 238U(36S, X), (64Ni, X), 154Sm, 238U, 244Pu, 248Cm(48Ca, X) reactions at energies near the Coulomb barrier at the same laboratory.
doi: 10.1103/PhysRevC.94.054613
2015IT01 Nucl.Phys. A944, 204 (2015) M.G.Itkis, E.Vardaci, I.M.Itkis, G.N.Knyazheva, E.M.Kozulin Fusion and fission of heavy and superheavy nuclei (experiment) COMPILATION 238U(36S, x), (48Ca, x), E not given;248Cm(48Ca, x), E not given; compiled, analyzed quasiffission mass distribution width, asymmetry. 186W(64Ni, x), E not given;206Pb(44Ca, x), E not given;232Th(48Ca, x), E not given;238U(36S, x), (48Ca, x), (64Ni, x), E not given;244Pu(48Ca, x), (58Fe, x), E not given;248Cm(48Ca, x), E not given; compiled, analyzed mass distribution, drift of dinuclear system; deduced average quasifission time vs charge product of target and projectile. NUCLEAR REACTIONS 56Ti, 58Fe, 86Kr, 136Xe(208Pb, x), E ≈ Coulomb barrier;232Th, 238U, 244Pu, 248Cm(48Ca, x), E≈ Coulomb barrier; compiled energy, mass distribution.
doi: 10.1016/j.nuclphysa.2015.09.007
2015VA15 Pramana 85, 345 (2015) E.Vardaci, A.Di Nitto, P.N.Nadtochy, A.Brondi, G.La Rana, R.Moro, M.Cinausero, G.Prete, N.Gelli, E.M.Kozulin, G.N.Knyazheva, I.M.Itkis Fission dynamics with systems of intermediate fissility NUCLEAR REACTIONS 100Mo(32S, X), E=200 MeV; measured fission products, Ep, Ip, Eα, Iα; deduced proton and α-particle multiplicities, evaporation residue and fission fragments σ. Comparison with statistical model.
doi: 10.1007/s12043-015-1049-x
2015VA16 Phys.Rev. C 92, 034610 (2015) E.Vardaci, P.N.Nadtochy, A.Di Nitto, A.Brondi, G.La Rana, R.Moro, P.K.Rath, M.Ashaduzzaman, E.M.Kozulin, G.N.Knyazheva, I.M.Itkis, M.Cinausero, G.Prete, D.Fabris, G.Montagnoli, N.Gelli Fission dynamics of intermediate-fissility systems: A study within a stochastic three-dimensional approach NUCLEAR REACTIONS 100Mo(32S, X)132Ce*, E=200 MeV pulsed beam; measured particle multiplicities, proton- and α-particle energy spectra, and angular distributions of light-charged-particle (LCPs) in the fusion-fission (FF) and evaporation-residue (ER) channels, (ER)α(θ), (ER)p(θ) using BALL sector of 8πLP apparatus and TOF spectrometer CORSET at XTU Tandem-ALPI accelerator complex of LNL-Legnaro; deduced mass-energy distribution (MEDs), mass and total-kinetic-energy (TKE) distributions of fission fragments, fission time distribution and fission rate, yields of pre-scission particle multiplicities versus time of emission from equilibrium. Data analyzed using dynamical model based on three-dimensional Langevin equations. Theoretical analysis using multidimensional stochastic approach coupled with a Hauser-Feshbach treatment of particle evaporation.
doi: 10.1103/PhysRevC.92.034610
2014KO02 Phys.Rev. C 89, 014614 (2014) E.M.Kozulin, G.N.Knyazheva, S.N.Dmitriev, I.M.Itkis, M.G.Itkis, T.A.Loktev, K.V.Novikov, A.N.Baranov, W.H.Trzaska, E.Vardaci, S.Heinz, O.Beliuskina, S.V.Khlebnikov Shell effects in damped collisions of 88Sr with 176Yb at the Coulomb barrier energy NUCLEAR REACTIONS 176Yb(88Sr, X), E=435 MeV; measured reaction products, (fragment)(fragment)-coin, total kinetic energy (TKE) distributions, double differential cross sections, and excitation energies of fragments using two-arm time-of-flight spectrometer CORSET at K130 cyclotron facility in Jyvaskyla; deduced evidence for low-energy multinucleon transfer reactions as a possible pathway for producing new neutron-rich isotopes in the superheavy element region.
doi: 10.1103/PhysRevC.89.014614
2014KO45 Phys.Rev. C 90, 054608 (2014); Pub.Note Phys.Rev. C 90, 069901 (2014) E.M.Kozulin, G.N.Knyazheva, I.M.Itkis, M.G.Itkis, A.A.Bogachev, E.V.Chernysheva, L.Krupa, F.Hanappe, O.Dorvaux, L.Stuttge, W.H.Trzaska, C.Schmitt, G.Chubarian Fusion-fission and quasifission of superheavy systems with Z = 110-116 formed in 48Ca-induced reactions NUCLEAR REACTIONS 232Th(48Ca, X)280Ds*, E=244 MeV; 238U(48Ca, X)286Cn*, E=228-238 MeV; 244Pu(48Ca, X)292Fl*, E=226-244 MeV; 248Cm(48Ca, X)296Lv*, E=233-240 MeV; measured binary reaction products in coincidence mode, time-of-flight, capture σ(E) using the double-arm time-of-flight spectrometer CORSET at the U-400 cyclotron of the FLNR-JINR facility; deduced fragment mass and energy distributions, most probable fragment masses and total kinetic energies (TKEs) and their dispersions in dependence on the interaction energies and ion-target combinations, fusion probabilities PCN. 283,284,285,286Cn, 289,290,291,292Fl, 293,294,295,296Lv; estimated lower limits for fission barriers.Comparison with available experimental results and calculations.
doi: 10.1103/PhysRevC.90.054608
2012KO34 Phys.Rev. C 86, 044611 (2012) E.M.Kozulin, E.Vardaci, G.N.Knyazheva, A.A.Bogachev, S.N.Dmitriev, I.M.Itkis, M.G.Itkis, A.G.Knyazev, T.A.Loktev, K.V.Novikov, E.A.Razinkov, O.V.Rudakov, S.V.Smirnov, W.Trzaska, V.I.Zagrebaev Mass distributions of the system 136Xe + 208Pb at laboratory energies around the Coulomb barrier: A candidate reaction for the production of neutron-rich nuclei at N=126 NUCLEAR REACTIONS 208Pb(136Xe, X), E=700, 870, 1020 MeV; measured particle spectra, (particle)(particle)-coin using CORSET spectrometer at Flerov lab, fragment mass-energy distribution, velocity and TKEL distributions, fragment mass yield, σ(E, θ). Comparison with theoretical calculations. RADIOACTIVITY 212Bi, 210,212,214,216,218Po, 220,222Rn, 224Ra(α); measured α spectra.
doi: 10.1103/PhysRevC.86.044611
2011IT06 Phys.Rev. C 83, 064613 (2011) I.M.Itkis, E.M.Kozulin, M.G.Itkis, G.N.Knyazheva, A.A.Bogachev, E.V.Chernysheva, L.Krupa, Yu.Ts.Oganessian, V.I.Zagrebaev, A.Ya.Rusanov, F.Goennenwein, O.Dorvaux, L.Stuttge, F.Hanappe, E.Vardaci, E.de Goes Brennand Fission and quasifission modes in heavy-ion-induced reactions leading to the formation of Hs* NUCLEAR REACTIONS 249Cf(22Ne, X)271Hs*, E=102, 127 MeV; 248Cm(26Mg, X)274Hs*, E=129, 143, 160 MeV; 238U(36S, X)274Hs*, E=173, 179, 186, 198 MeV; 208Pb(58Fe, X)266Hs*, E=289, 305, 315, 324 MeV; measured binary reaction product spectra in coincidence mode using TOF; deduced yields, mass-energy and TKE distributions of binary products. Comparison of measured fragment mass-energy distributions with those expected for fission processes of excited compound nucleus in the framework of the liquid drop model and empirical systematics.
doi: 10.1103/PhysRevC.83.064613
2010IT02 Nucl.Phys. A834, 374c (2010) M.G.Itkis, I.M.Itkis, G.N.Knyazheva, E.M.Kozulin Fusion-fission and quasifission of superheavy systems in heavy-ion induced reactions NUCLEAR REACTIONS 248Cm(26Mg, X)274Hs, E*=28-64 MeV; 238U(36S, X)274Hs, E*=30-57 MeV; 208Pb(58Fe, X)266Hs, E*=33, 48 MeV; measured σ, fragment energy spectra (TKE), yields using CORSET spectrometer; deduced reaction mechanism features.
doi: 10.1016/j.nuclphysa.2010.01.043
2010KO16 Phys.Lett. B 686, 227 (2010) E.M.Kozulin, G.N.Knyazheva, I.M.Itkis, M.G.Itkis, A.A.Bogachev, L.Krupa, T.A.Loktev, S.V.Smirnov, V.I.Zagrebaev, J.Aysto, W.H.Trzaska, V.A.Rubchenya, E.Vardaci, A.M.Stefanini, M.Cinausero, L.Corradi, E.Fioretto, P.Mason, G.F.Prete, R.Silvestri, S.Beghini, G.Montagnoli, F.Scarlassara, F.Hanappe, S.V.Khlebnikov, J.Kliman, A.Brondi, A.Di Nitto, R.Moro, N.Gelli, S.Szilner Investigation of the reaction 64Ni + 238U being an option of synthesizing element 120 NUCLEAR REACTIONS 238U(48Ca, X), E=220-260 MeV; 238U(64Ni, X), E=320-385 MeV; measured fragment yields and energy distributions using CORSET time-of-flight spectrometer; deduced σ; analyzed reaction mechanism features using Viola systematics. 244Pu(58Fe, X), E=328 MeV; analyzed data. Discussed superheavy element formation.
doi: 10.1016/j.physletb.2010.02.041
2008PR03 Nucl.Phys. A802, 45 (2008) E.V.Prokhorova, A.A.Bogachev, M.G.Itkis, I.M.Itkis, G.N.Knyazheva, N.A.Kondratiev, E.M.Kozulin, L.Krupa, Yu.Ts.Oganessian, I.V.Pokrovsky, V.V.Pashkevich, A.Ya.Rusanov The fusion-fission and quasi-fission processes in the reaction 48Ca + 208Pb at energies near the Coulomb barrier NUCLEAR REACTIONS 208Pb(48Ca, X), E=206?242 MeV; measured fragment yields, mass and energy distributions and capture-fission σ. Discussed reaction mechanism in terms of fusion?fission and quasi-fission.
doi: 10.1016/j.nuclphysa.2008.01.016
2007IT03 Int.J.Mod.Phys. E16, 957 (2007) M.G.Itkis, A.A.Bogachev, I.M.Itkis, G.N.Knyazheva, N.A.Kondratiev, E.M.Kozulin, L.Krupa, Yu.Ts.Oganessian, I.V.Pokrovsky, E.V.Prokhorova, A.Ya.Rusanov, V.M.Voskresenski, V.A.Rubchenya, W.H.Trzaska The process of fusion-fission of superheavy nuclei NUCLEAR REACTIONS 208Pb(48Ca, X), (50Ti, X), (56Fe, X), (86Kr, X), E not given; 208Pb, 238U, 244Pu, 248Cm(48Ca, X), E not given; measured fragment mass distributions, yields and cross sections.
doi: 10.1142/S0218301307006423
2007IT04 Nucl.Phys. A787, 150c (2007) M.G.Itkis, A.A.Bogachev, I.M.Itkis, J.Kliman, G.N.Knyazheva, N.A.Kondratiev, E.M.Kozulin, L.Krupa, Yu.Ts.Oganessian, I.V.Pokrovsky, E.V.Prokhorova, A.Ya.Rusanov The processes of fusion-fission and quasi-fission of superheavy nuclei NUCLEAR REACTIONS 208Pb(26Mg, F), (48Ca, F), (50Ti, F), (58Fe, F), (64Ni, F), E not given; measured capture, fusion-fission σ; 238U, 244Pu, 248Cm(48Ca, F), E not given; measured fission fragments energy and mass distributions. 144,154Sm, 168Er, 174Yb, 208Pb, 238U, 244Pu, 248Cm(48Ca, F), E not given; 208Pb(58Fe, F), E not given; 248Cm(26Mg, F), E not given; measured fission fragments energy and mass distributions, quasi-fission, capture σ. 246Cm(48Ca, F), E not given; 244Pu(50Ti, F), E not given; measured capture, fusion-fission σ. 232Th, 244Pu, 248Cm(58Fe, F), E not given; 242Pu(64Ni, F), E not given; measured fission fragments energy and mass distributions. 208Pb, 238U, 244Pu, 248Cm(58Fe, F), E not given; 208Pb(86Kr, F), E not given; measured capture, fusion-fission σ. 206Pb(44Ca, F), E=218 MeV; 186W(64Ni, F), E=300 MeV; measured fission fragments mass distributions, average energy. Super heavy element synthesis, fission and fusion reaction mechanisms discussed.
doi: 10.1016/j.nuclphysa.2006.12.026
2006IT05 Phys.Lett. B 640, 32 (2006) I.M.Itkis, A.A.Bogachev, A.Yu.Chizhov, D.M.Gorodisskiy, M.G.Itkis, G.N.Kniajeva, N.A.Kondratiev, E.M.Kozulin, L.Krupa, S.I.Mulgin, I.V.Pokrovsky, E.V.Prokhorova, A.Ya.Rusanov, V.M.Voskressenski, S.V.Zhdanov What can one learn about lithium breakup from the fission reaction of 232Th(6Li, f) at energies around the Coulomb barrier? NUCLEAR REACTIONS 232Th(6Li, F), E=28.5-62.5 MeV; measured fission fragments energy and mass distributions, folding angle distributions; deduced incomplete and complete fusion contributions.
doi: 10.1016/j.physletb.2006.07.026
2006IT09 Phys.Lett. B 640, 23 (2006) I.M.Itkis, A.A.Bogachev, A.Yu.Chizhov, D.M.Gorodisskiy, M.G.Itkis, G.N.Knyazheva, N.A.Kondratiev, E.M.Kozulin, L.Krupa, S.I.Mulgin, I.V.Pokrovsky, E .V.Prokhorova, A.Ya.Rusanov, V.M.Voskressenski, S.V.Zhdanov What can one learn about lithium breakup from the fission reaction of 232Th(6Li, f) at energies around the Coulomb barrier NUCLEAR REACTIONS 232Th(6Li, f), E=28.5-62.5 MeV; measured products; deduced yields. Data were imported from EXFOR entry O1442.
doi: 10.1016/j.physletb.2006.07.026
2005ST04 Eur.Phys.J. A 23, 473 (2005) A.M.Stefanini, M.Trotta, B.R.Behera, L.Corradi, E.Fioretto, A.Gadea, A.Latina, S.Szilner, Y.W.Wu, S.Beghini, G.Montagnoli, F.Scarlassara, A.Yu.Chizhov, I.M.Itkis, N.A.Kondratiev, I.V.Pokrovsky, R.N.Sagaidak, G.N.Kniajeva, E.M.Kozulin, V.M.Voskressensky, S.Courtin, F.Haas, N.Rowley Fusion-evaporation cross-sections for 48Ca + 154Sm near the Coulomb barrier: Evidence for fusion enhancement and hindrance NUCLEAR REACTIONS 154Sm(48Ca, X), E(cm)=125-168 MeV; measured evaporation residue σ; deduced capture σ, sub-barrier fusion enhancement. Coupled-channels analysis.
doi: 10.1140/epja/i2004-10109-6
2005TR14 Eur.Phys.J. A 25, Supplement 1, 615 (2005) M.Trotta, A.M.Stefanini, S.Beghini, B.R.Behera, A.Yu.Chizhov, L.Corradi, S.Courtin, E.Fioretto, A.Gadea, P.R.S.Gomes, F.Haas, I.M.Itkis, M.G.Itkis, G.N.Kniajeva, N.A.Kondratiev, E.M.Kozulin, A.Latina, G.Montagnoli, I.V.Pokrovsky, N.Rowley, R.N.Sagaidak, F.Scarlassara, A.Szanto de Toledo, S.Szilner, V.M.Voskressensky, Y.W.Wu Fusion hindrance and quasi-fission in 48Ca induced reactions: Implications for super-heavy element production NUCLEAR REACTIONS 154Sm(48Ca, X), E(cm) ≈ 120-200 MeV; 186W(16O, X), E(cm) ≈ 60-100 MeV; measured capture, evaporation, fission σ; deduced fusion hindrance features. 144,154Sm(48Ca, X), 154Sm(40Ca, X), E* ≈ 50 MeV; measured fission fragment kinetic energy and mass distributions; deduced mass-asymmetry and shell effects.
doi: 10.1140/epjad/i2005-06-084-2
2004IT05 Nucl.Phys. A734, 136 (2004) M.G.Itkis, J.Aysto, S.Beghini, A.A.Bogachev, L.Corradi, O.Dorvaux, A.Gadea, G.Giardina, F.Hanappe, I.M.Itkis, M.Jandel, J.Kliman, S.V.Khlebnikov, G.N.Kniajeva, N.A.Kondratiev, E.M.Kozulin, L.Krupa, A.Latina, T.Materna, G.Montagnoli, Yu.Ts.Oganessian, I.V.Pokrovsky, E.V.Prokhorova, N.Rowley, V.A.Rubchenya, A.Ya.Rusanov, R.N.Sagaidak, F.Scarlassara, A.M.Stefanini, L.Stuttge, S.Szilner, M.Trotta, W.H.Trzaska, D.N.Vakhtin, A.M.Vinodkumar, V.M.Voskresensky, V.I.Zagrebaev Shell effects in fission and quasi-fission of heavy and superheavy nuclei NUCLEAR REACTIONS 204Pb(12C, X), 144,154Sm, 168Er, 208Pb, 238U, 244Pu, 248Cm(48Ca, X), 208Pb, 244Pu, 248Cm(58Fe, X), 186W, 242Pu(64Ni, X), E* ≈ 30-50 MeV; calculated fission fragment kinetic energy and mass distributions, neutron and γ multiplicities; deduced shell effects in fission and quasi-fission processes.
doi: 10.1016/j.nuclphysa.2004.01.022
2004IT07 Nucl.Phys. A734, E29 (2004) M.G.Itkis, B.Benoit, A.A.Bogachev, D.M.Gorodisskiy, F.Hanappe, I.M.Itkis, M.Jandel, J.Kliman, N.A.Kondratiev, E.M.Kozulin, L.Krupa, T.Materna, Yu.Ts.Oganessian, I.V.Pokrovsky, E.V.Prokhorova, A.Ya.Rusanov, L.Stuttge, V.M.Voskressenski Energy balance in fission and quasifission of 256No NUCLEAR REACTIONS 208Pb(48Ca, X), E=230 MeV; measured fission fragments mass distribution, kinetic and excitation energy distributions, pre- and post-scission neutron and γ-ray multiplicities; deduced energy distribution features.
doi: 10.1016/j.nuclphysa.2004.03.012
2004IT12 Acta Phys.Hung.N.S. 19, 9 (2004) M.G.Itkis, S.Beghini, A.A.Bogatchev, L.Corradi, O.Dorvaux, F.Hanappe, A.Gadea, G.Giardina, I.M.Itkis, M.Jandel, J.Kliman, G.N.Kniajeva, N.A.Kondratiev, I.V.Korzyukov, E.M.Kozulin, L.Krupa, L.Latina, T.Materna, G.Montagnoli, Yu.Ts.Oganessian, I.V.Pokrovsky, E.V.Prokhorova, N.Rowley, A.Ya.Rusanov, F.Scarlassara, A.M.Stefanini, L.Stuttge, S.Szilner, M.Trotta, V.M.Voskressenski Shell Effects in Fusion-Fission of Heavy and Superheavy Nuclei NUCLEAR REACTIONS 208Pb, 238U, 244Pu, 248Cm(48Ca, X), E* ≈ 33 MeV; 232Th, 244Pu, 248Cm(58Fe, X), E ≈ 328 MeV; 168Er(48Ca, X), E=180-204 MeV; 204Pb(12C, X), E=73 MeV; analyzed fragments energy and mass distributions; deduced shell effects.
doi: 10.1556/APH.19.2004.1-2.3
2004KN02 Nucl.Phys. A734, E25 (2004) G.N.Kniajeva, L.Krupa, A.A.Bogachev, G.G.Chubarian, O.Dorvaux, I.M.Itkis, M.G.Itkis, J.Kliman, S.Khlebnikov, N.A.Kondratiev, E.Kozulin, V.Lyapin, T.Materna, I.V.Pokrovsky, V.A.Rubchenya, W.H.Trzaska, D.Vakhtin, V.M.Voskressenski Neutron and gamma-ray emission in the proton induced fission of 238U and 242Pu NUCLEAR REACTIONS 242Pu, 238U(p, F), E=13, 20, 55 MeV; measured En, Eγ, prescission and postscission neutron and γ-ray multiplicities, fission fragment mass distributions, kinetic energy spectra.
doi: 10.1016/j.nuclphysa.2004.03.011
2004MA30 Nucl.Phys. A734, 184 (2004) T.Materna, Y.Aritomo, N.Amar, A.Bogatchev, V.Bouchat, O.Dorvaux, G.Giardina, S.Grevy, F.Hanappe, I.Itkis, M.Itkis, M.Jandel, G.Kniajeva, J.Kliman, E.Kozulin, N.Kondratiev, L.Krupa, J.Peter, E.Prokhorova, I.Pokrovsky, C.Schmitt, L.Stuttge, V.Voskresensky Capture and dissipation in the superheavy region NUCLEAR REACTIONS 208Pb(48Ca, X), E=240 MeV; 244Pu(48Ca, X), E=244 MeV; measured pre-scission neutron multiplicity distributions. Backtracing analysis.
doi: 10.1016/j.nuclphysa.2004.01.030
2004RU04 Nucl.Phys. A734, 253 (2004) V.A.Rubchenya, W.H.Trzaska, I.M.Itkis, M.G.Itkis, J.Kliman, G.N.Kniajeva, N.A.Kondratiev, E.M.Kozulin, L.Krupa, I.V.Pokrovsky, V.M.Voskressensky, F.Hanappe, T.Materna, O.Dorvaux, L.Stuttge, G.Chubarian, S.V.Khlebnikov, D.N.Vakhtin, V.G.Lyapin Fission dynamics in the proton induced fission of heavy nuclei NUCLEAR REACTIONS 242Pu(p, F), E=13, 20, 55 MeV; measured fission fragment mass distributions, kinetic energies, neutron multiplicities, σ(E, θ). Multi-parameter correlation analysis.
doi: 10.1016/j.nuclphysa.2004.01.047
2004TR08 Nucl.Phys. A734, 245 (2004) M.Trotta, A.M.Stefanini, L.Corradi, E.Fioretto, A.Gadea, S.Szilner, S.Beghini, G.Montagnoli, F.Scarlassara, A.Yu.Chizhov, I.M.Itkis, G.N.Kniajeva, E.M.Kozulin, N.A.Kondratiev, I.V.Pokrovsky, R.N.Sagaidak, V.M.Voskressensky, S.Courtin, O.Dorvaux, F.Haas, N.Rowley Fusion of 48Ca + 154Sm near the Coulomb barrier: enhancement vs. suppression NUCLEAR REACTIONS 154Sm(48Ca, X), E(cm)=125-160 MeV; measured fusion and evaporation residue σ; deduced reaction mechanism features. Comparison with previous results.
doi: 10.1016/j.nuclphysa.2004.01.045
2004TR11 Prog.Theor.Phys.(Kyoto), Suppl. 154, 37 (2004) M.Trotta, A.M.Stefanini, B.R.Behera, L.Corradi, E.Fioretto, A.Gadea, S.Szilner, Y.W.Wu, S.Beghini, G.Montagnoli, F.Scarlassara, A.Yu.Chizhov, I.M.Itkis, G.N.Kniajeva, N.A.Kondratiev, E.M.Kozulin, I.V.Pokrovsky, R.N.Sagaidak, V.M.Voskressensky, F.Haas, N.Rowley Fusion Hindrance and Quasi-Fission in 48Ca Induced Reactions NUCLEAR REACTIONS 168Er(48Ca, F), E=195 MeV; measured fission fragment angular distributions; 154Sm(48Ca, X), E=163-252 MeV; measured evaporation residue σ, σ(θ); 144,154Sm(48Ca, F), E* ≈ 49 MeV; measured fission fragment mass and kinetic energy distributions; deduced reaction mechanism features. Comparisons with model predictions.
doi: 10.1143/PTPS.154.37
2003CH04 Phys.Rev. C 67, 011603 (2003) A.Yu.Chizhov, M.G.Itkis, I.M.Itkis, G.N.Kniajeva, E.M.Kozulin, N.A.Kondratiev, I.V.Pokrovsky, R.N.Sagaidak, V.M.Voskresensky, A.V.Yeremin, L.Corradi, A.Gadea, A.Latina, A.M.Stefanini, S.Szilner, M.Trotta, A.M.Vinodkumar, S.Beghini, G.Montagnoli, F.Scarlassara, A.Ya.Rusanov, F.Hanappe, O.Dorvaux, N.Rowley, L.Stuttge Unexpected entrance-channel effect in the fission of 216Ra NUCLEAR REACTIONS 204Pb(12C, X), E=56-90 MeV; 168Er(48Ca, X), E=180-208 MeV; measured fission fragment energy and mass distributions; deduced contributions from asymmetric fission, role of quasifission process.
doi: 10.1103/PhysRevC.67.011603
2003IT03 Yad.Fiz. 66, 1154 (2003); Phys.Atomic Nuclei 66, 1118 (2003) M.G.Itkis, S.Beghini, A.A.Bogatchev, L.Corradi, O.Dorvaux, A.Gadea, G.Giardina, A.A.Goverdovski, F.Hanappe, I.M.Itkis, M.Jandel, J.Kliman, G.N.Kniajeva, N.A.Kondratiev, I.V.Korzyukov, E.M.Kozulin, L.Krupa, L.Latina, T.Materna, G.Montagnoli, K.J.Moody, Yu.Ts.Oganessian, I.V.Pokrovsky, V.A.Ponomarenko, E.V.Prokhorova, N.Rowley, A.Ya.Rusanov, F.Scarlassara, A.M.Stefanini, L.Stuttge, S.Szilner, M.Trotta, A.M.Vinodkumar, V.M.Voskressensky Fusion-Fission of Heavy and Superheavy Nuclei NUCLEAR REACTIONS 208Pb, 238U, 244Pu, 248Cm(48Ca, X), E* ≈ 33 MeV; 232Th, 244Pu, 248Cm(58Fe, X), E*=33-53 MeV; 168Er(48Ca, X), E*=30-48 MeV; measured fission fragment kinetic energy and mass distributions. 154Sm, 168Er, 208Pb, 238U, 244Pu, 248Cm(48Ca, X), E* ≈ 33 MeV; measured quasifission σ vs capture σ.
doi: 10.1134/1.1586425
2003MA30 Yad.Fiz. 66, 1204 (2003); Phys.Atomic Nuclei 66, 1168 (2003) T.Materna, C.Schmitt, Y.Aritomo, J.Bartel, B.Benoit, A.A.Bogatchev, E.de Goes Brennand, O.Dorvaux, G.Giardina, F.Hanappe, M.G.Itkis, I.M.Itkis, J.Kliman, G.N.Kniajeva, N.A.Kondratiev, E.M.Kozulin, L.Krupa, Yu.Ts.Oganessian, I.V.Pokrovsky, E.V.Prokhorova, N.Rowley, K.Siwek-Wilczynska, L.Stuttge Tracking Dissipation in Capture Reactions NUCLEAR REACTIONS 98Mo(28Si, X), E=204 MeV; 208Pb(58Ni, X), E=232Th(40Ca, X), E=166 MeV; analyzed pre- and post-scission neutron multiplicities, correlations. 209Bi(18O, F), E*=26 MeV; analyzed fission fragment mass distribution. Backtracking analysis method.
doi: 10.1134/1.1586432
2003PO06 Yad.Fiz. 66, 1234 (2003); Phys.Atomic Nuclei 66, 1198 (2003) I.V.Pokrovsky, A.Yu.Chizhov, M.G.Itkis, I.M.Itkis, G.N.Kniajeva, E.M.Kozulin, N.A.Kondratiev, R.N.Sagaidak, V.M.Voskressensky, L.Corradi, A.M.Stefanini, M.Trotta, A.M.Vinodkumar, S.Beghini, G.Montagnoli, F.Scarlassara, A.Ya.Rusanov, F.Hanappe, O.Dorvaux, N.Rowley, L.Stuttge The Effect of the Entrance Channel on the Fission of 216Ra NUCLEAR REACTIONS 204Pb(12C, X), E=73 MeV; 168Er(48Ca, X), E=194 MeV; measured fission fragment energy and mass distributions; deduced entrance channel effects.
doi: 10.1134/1.1586437
2003SA21 Phys.Rev. C 68, 014603 (2003) R.N.Sagaidak, G.N.Kniajeva, I.M.Itkis, M.G.Itkis, N.A.Kondratiev, E.M.Kozulin, I.V.Pokrovsky, A.I.Svirikhin, V.M.Voskressensky, A.V.Yeremin, L.Corradi, A.Gadea, A.Latina, A.M.Stefanini, S.Szilner, M.Trotta, A.M.Vinodkumar, S.Beghini, G.Montagnoli, F.Scarlassara, D.Ackermann, F.Hanappe, N.Rowley, L.Stuttge Fusion suppression in mass-asymmetric reactions leading to Ra compound nuclei NUCLEAR REACTIONS 204,206,208Pb(12C, X), 168,170Er(48Ca, X), 197Au(19F, X), 186W(30Si, X), E* ≈ 20-90 MeV; measured fusion and fission excitation functions; deduced role of quasifission processes in fusion supression.
doi: 10.1103/PhysRevC.68.014603
2002IT10 J.Nucl.Radiochem.Sci. 3, No 1, 57 (2002) M.G.Itkis, A.A.Bogatchev, I.M.Itkis, M.Jandel, J.Kliman, G.N.Kniajeva, N.A.Kondratiev, I.V.Korzyukov, E.M.Kozulin, L.Krupa, Yu.Ts.Oganessian, I.V.Pokrovsky, V.A.Ponomarenko, E.V.Prokhorova, A.Ya.Rusanov, V.M.Voskressenski, A.A.Goverdovski, F.Hanappe, T.Materna, N.Rowley, L.Stuttge, G.Giardina, K.J.Moody Fusion-fission of Superheavy Nuclei NUCLEAR REACTIONS 208Pb, 238U, 244Pu, 248Cm(48Ca, X), 248Cm(22Ne, X), (26Mg, X), 208Pb, 244Pu, 248Cm(58Fe, X), 208Pb(86Kr, X), E* ≈ 33 MeV; measured fusion, fission σ, fragment mass distributions.
2000PO12 Phys.Rev. C62, 014615 (2000) I.V.Pokrovsky, M.G.Itkis, I.M.Itkis, N.A.Kondratiev, E.M.Kozulin, E.V.Prokhorova, V.S.Salamatin, V.V.Pashkevich, S.I.Mulgin, A.Ya.Rusanov, S.V.Zhdanov, G.G.Chubarian, B.J.Hurst, R.P.Schmitt, C.Agodi, G.Bellia, L.Calabretta, K.Lukashin, C.Maiolino, A.Kelic, G.Rudolf, L.Stuttge, F.Hanappe Fission Modes in the Reaction 208Pb(18O, f) NUCLEAR REACTIONS 208Pb(18O, F), E=78 MeV; measured fission fragments kinetic energy, mass distributions; deduced high-energy fission mode. Multicomponent analysis method.
doi: 10.1103/PhysRevC.62.014615
1999DO19 Nucl.Phys. A656, 259 (1999) L.Donadille, E.Liatard, B.Benoit, F.Hanappe, L.Stuttge, G.Rudolf, E.M.Kozulin, Yu.A.Lazarev, P.Desesquelles, L.A.Litnevsky, B.Bilwes, J.-F.Bruandet, G.J.Costa, O.Dorvaux, F.Farget, J.Fayot, G.Guillaume, A.Huck, I.Itkis, M.G.Itkis, S.Jokic, N.A.Kondratev, F.-R.Lecolley, J.-F.Lecolley, Yu.Ts.Oganessian, G.Perrin, D.Santos, F.Schussler, S.Tomasevic, J.-B.Viano, B.Vignon Fission Dynamics for Capture Reactions in 58, 64Ni + 208Pb Systems: New results in terms of thermal energy and neutron multiplicity correlated distributions NUCLEAR REACTIONS 208Pb(58Ni, F), E=6.5-8.9 MeV/nucleon; 208Pb(64Ni, F), E=5.9-7.4 MeV/nucleon; measured fission fragments mass, kinetic energy distributions, neutron multiplicity; deduced friction coefficient, fission time, pre-, post-scission neutron distributions. Combined dynamical and statistical model.
doi: 10.1016/S0375-9474(99)00306-1
1999KE09 Europhys.Lett. 47, 552 (1999) A.Kelic, I.M.Itkis, I.V.Pokrovsky, E.V.Prokhorova, B.Benoit, G.Costa, L.Donadille, O.Dorvaux, E.De Goes Brennand, G.Guillaume, F.Hanappe, B.Heusch, A.Huck, M.G.Itkis, S.Jokic, N.A.Kondratev, E.M.Kozulin, Yu.Ts.Oganessian, G.Rudolf, A.Ya.Rusanov, L.Stuttge, D.Vorkapic, K.Yuasa-Nakagawa Prefission Neutron Multiplicities and the Fission Modes of 226Th NUCLEAR REACTIONS 208Pb(18O, X), E=78 MeV; measured neutron spectra, multiplicities, fragment mass distributions following compound nucleus fission; deduced relationship between fission modes and pre-, post-fission neutron multiplicity.
doi: 10.1209/epl/i1999-00424-4
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