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NSR database version of April 11, 2024.

Search: Author = O.N.Malyshev

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2023CH05      Phys.Rev. C 107, 014326 (2023)

R.Chakma, A.Lopez-Martens, K.Hauschild, A.V.Yeremin, O.N.Malyshev, A.G.Popeko, Yu.A.Popov, A.I.Svirikhin, V.I.Chepigin, E.A.Sokol, A.V.Isaev, A.A.Kuznetsova, M.L.Chelnokov, M.S.Tezekbayeva, I.N.Izosimov, O.Dorvaux, B.Gall, Z.Asfari

Investigation of isomeric states in 255Rf

NUCLEAR REACTIONS 207Pb(50Ti, 2n), E=253 MeV; measured reaction products, evaporation residues (ER), Eγ, Iγ, ce, Eβ, (ER)γ-coin, ceγ-coin, (ER)←ce)-coin; deduced isomer levels population, isomeric ratios. 255Rf; deduced levels, J, π, δ, T1/2 of newly discovered isomeric states, high-spin states, configurations of isomeric states. Evaporation residues separated using the velocity filter SHELS and transported to the focal-plane detection setup - GABRIELA detector array for γ and internal conversion electrons at FLNR (JINR, Dubna).

RADIOACTIVITY 255Rf(α), (SF)[from (50Ti, 2n), E=253 MeV]; measuredEα, Iα, fission fragments; deduced T1/2 of α-decay and fission, branching ratios. 255Rf(β+)(EC); deduced upper limit of β+/EC decay branch. Decay of implanted evaporation residues measured by large-area double-sided silicon strip detector (DSSD).

doi: 10.1103/PhysRevC.107.014326
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2023IS03      Phys.Lett. B 843, 138008 (2023)

A.V.Isaev, R.S.Mukhin, A.V.Andreev, Z.Asfari, M.L.Chelnokov, V.I.Chepigin, H.M.Devaraja, O.Dorvaux, B.Gall, K.Hauschild, I.N.Izosimov, A.A.Kuznetsova, A.Lopez-Martens, O.N.Malyshev, A.G.Popeko, Yu.A.Popov, A.Rahmatinejad, B.Sailaubekov, T.M.Shneidman, E.A.Sokol, A.I.Svirikhin, M.S.Tezekbayeva, A.V.Yeremin, N.I.Zamyatin

Structure of the prompt neutron multiplicity distribution in the spontaneous fission of 256Rf

RADIOACTIVITY 256Rf(SF), (α) [from 208Pb(50Ti, X), E=237 MeV];measured fission products, En, In, TOF; deduced neutron multiplicity distribution, alpha decay branching ratio and T1/2. Prompt neutron multiplicity study in the superheavy element region. SHELS separator, U-400 cyclotron, the Flerov laboratory at JINR.

doi: 10.1016/j.physletb.2023.138008
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2022HA04      Eur.Phys.J. A 58, 6 (2022)

K.Hauschild, A.Lopez-Martens, R.Chakma, M.L.Chelnokov, V.I.Chepigin, A.V.Isaev, I.N.Izosimov, D.E.Katrasev, A.A.Kuznetsova, O.N.Malyshev, A.G.Popeko, E.A.Sokol, A.I.Svirikhin, M.S.Tezekbayeva, A.V.Yeremin, Z.Asfari, O.Dorvaux, B.J.P.Gall, K.Kessaci, D.Ackermann, J.Piot, P.Mosat, B.Andel

Alpha-decay spectroscopy of 257Rf

RADIOACTIVITY 257Rf(α), (IT) [from 208Pb(50Ti, n), E=240-245 MeV]; measured decay products, Eα, Iα, Eγ, Iγ; deduced α-particles energies and intensities, T1/2, J, π, decay scheme. Nilsson configurations. The detectorarray GABRIELA at the FLNR, Dubna.

doi: 10.1140/epja/s10050-021-00657-8
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2022IS05      Eur.Phys.J. A 58, 108 (2022)

A.V.Isaev, R.S.Mukhin, A.V.Andreev, M.A.Bychkov, M.L.Chelnokov, V.I.Chepigin, H.M.Devaraja, O.Dorvaux, M.Forge, B.Gall, K.Hauschild, I.N.Izosimov, K.Kessaci, A.A.Kuznetsova, A.Lopez-Martens, O.N.Malyshev, A.G.Popeko, Yu.A.Popov, A.Rahmatinejad, B.Sailaubekov, T.M.Shneidman, E.A.Sokol, A.I.Svirikhin, D.A.Testov, M.S.Tezekbayeva, A.V.Yeremin, N.I.Zamyatin, K.Sh.Zhumadilov

Prompt neutron emission in the spontaneous fission of 246Fm

RADIOACTIVITY 246Fm(SF) [from 208Pb(40Ar, X), E=183 MeV]; measured decay products, En, In; deduced neutron yields, nubar, spontaneous fission branching ratio, T1/2. Tikhonov method of statistical regularisation. FLNR JINR using the SHELS separator and the SFiNx detection system, the U-400 cyclotron.

doi: 10.1140/epja/s10050-022-00761-3
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset41751. Data from this article have been entered in the XUNDL database. For more information, click here.


2022LO03      Phys.Rev. C 105, L021306 (2022)

A.Lopez-Martens, K.Hauschild, A.I.Svirikhin, Z.Asfari, M.L.Chelnokov, V.I.Chepigin, O.Dorvaux, M.Forge, B.Gall, A.V.Isaev, I.N.Izosimov, K.Kessaci, A.A.Kuznetsova, O.N.Malyshev, R.S.Mukhin, A.G.Popeko, Yu.A.Popov, B.Sailaubekov, E.A.Sokol, M.S.Tezekbayeva, A.V.Yeremin

Fission properties of 253Rf and the stability of neutron-deficient Rf isotopes

RADIOACTIVITY 253Rf(SF)(α) [from 204Pb(50Ti, n), E=244 MeV];249No(α)[from 253Rf(SF)(α)];245Fm(α)[from 249No(α)]; 251No(SF)(α)[from 204Pb(48Ca, n); measured fission fragments, Eγ, Iγ, Eα, Iα, (implant)α-coin, (implant)γ-coin. 253Rf; deduced levels, J, π, T1/2 for two isomeric fissioning states, branching ratio for α-decay. 251No; deduced T1/2. 252Rf; deduced T1/2 based on extracted hindrance factor and systematics. U400 Cyclotron at the Flerov Laboratory of Nuclear Reactions in Dubna with separator for heavy element spectroscopy (SHELS). GABRIELA detector consisting of DSSD and HPGe detectors.

NUCLEAR REACTIONS 204Pb(50Ti, n), E=244 MeV; measured fission fragments from 253Rf decay, Eα, Iα; deduced σ.

doi: 10.1103/PhysRevC.105.L021306
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2022SA09      Phys.Rev. C 105, 024604 (2022)

R.N.Sagaidak, M.L.Chelnokov, V.I.Chepigin, V.A.Gorshkov, O.N.Malyshev, A.G.Popeko, A.I.Svirikhin, A.V.Yeremin

Production of evaporation residues in the 16O + 208Pb and 48Ca + 176Yb reactions

NUCLEAR REACTIONS 208Pb(16O, xn), E*=19-78 MeV; 176Yb(48Ca, xn), E*=19-62 MeV;measured reaction products, evaporation residues, Eα, Ια, αα-coin, (implants)α-coin; deduced σ(E), compound nucleus formation probability. Comparison with previous experimental data. Recoil separator VASSILISSA at U400 cyclotron (JINR).

doi: 10.1103/PhysRevC.105.024604
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2022TE01      Eur.Phys.J. A 58, 52 (2022)

M.S.Tezekbayeva, A.V.Yeremin, A.I.Svirikhin, A.Lopez-Martens, M.L.Chelnokov, V.I.Chepigin, A.V.Isaev, I.N.Izosimov, A.V.Karpov, A.A.Kuznetsova, O.N.Malyshev, R.S.Mukhin, A.G.Popeko, Yu.A.Popov, V.A.Rachkov, B.S.Sailaubekov, E.A.Sokol, K.Hauschild, H.Jacob, R.Chakma, O.Dorvaux, M.Forge, B.Gall, K.Kessaci, B.Andel, S.Antalic, A.Bronis, P.Mosat

Study of the production and decay properties of neutron-deficient nobelium isotopes

RADIOACTIVITY 249,250,250m,251No(α)[from 204Pb(48Ca, xn), E=225.2, 230.0, 237.0, 242.0, 246.0 MeV]; 245Fm, 245Es, 241Cf(α)[from 249No α decay]; measured decay products, Eα, Iα, (evaporation residues)α-corelations using SHELS separator and the GABRIELA detector system at FLNR-JINR-Dubna; deduced T1/2, production σ for 249No, an upper limit on the fission branch. 245Fm(EC), (β+); deduced branching ratio for ϵ+β+ decay mode. Comparison with previous experimental results.

doi: 10.1140/epja/s10050-022-00707-9
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Data from this article have been entered in the XUNDL database. For more information, click here.


2021IS09      Phys.Part. and Nucl.Lett. 18, 449 (2021)

A.V.Isaev, A.V.Andreev, M.L.Chelnokov, V.I.Chepigin, I.N.Izosimov, A.A.Kuznetsova, O.N.Malyshev, R.S.Mukhin, A.G.Popeko, Y.A.Popov, T.M.Shneidman, E.A.Sokol, A.I.Svirikhin, M.S.Tezekbayeva, A.V.Yeremin, N.I.Zamyatin, P.Brionnet, O.Dorvaux, B.Gall, K.Kessaci, A.Sellam, K.Hauschild, A.Lopez-Martens, S.Antalic, P.Mosat

Comparative Study of Spontaneous-Fission Characteristics of 252No and 254No Isotopes

RADIOACTIVITY 252,254No(SF) [from 206,208Pb(48Ca, X), E=215 MeV]; measured decay products; deduced T1/2, total kinetic energies of fission fragments, and prompt-neutron multiplicities (nubars). SHELS separator, Flerov Laboratory of Nuclear Reactions (JINR).

doi: 10.1134/S1547477121040087
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset41741.


2021KE10      Phys.Rev. C 104, 044609 (2021)

K.Kessaci, B.J.P.Gall, O.Dorvaux, A.Lopez-Martens, R.Chakma, K.Hauschild, M.L.Chelnokov, V.I.Chepigin, M.Forge, A.V.Isaev, I.N.Izosimov, D.E.Katrasev, A.A.Kuznetsova, O.N.Malyshev, R.Mukhin, J.Piot, A.G.Popeko, Yu.A.Popov, E.A.Sokol, A.I.Svirikhin, M.S.Tezekbayev, A.V.Yeremin

Evidence of high-K isomerism in 256102No154

RADIOACTIVITY 256,256mNo(α), 256mNo(IT)[from 238U(22Ne, 4n), E=113, 116 MeV, followed by separation of evaporation residues (ERs) using the Super Heavy ELements Separator (SHELS) at the U400 cyclotron of FLNR-JINR-Dubna]; measured Eα, Iα, Eγ, Iγ, conversion electrons, (ce)γ-coin, (recoils)α-correlations, half-lives of decays of 256No and 256mNo using the GABRIELA apparatus with time-of-flight (TOF) system, a double-sided silicon strip detector (DSSD), eight silicon strip detectors, five Compton-suppressed HPGe detectors, and a clover HPGe detector. 256No; deduced level, J, π, Kπ, first evidence of an isomer in 256No, high-K isomerism, two- and four-quasiparticle Nilsson configurations; schematics of two quasiparticles states on neutron and proton single-particle levels, based on experimental sequences of states in neighboring isotones and isotopes.

doi: 10.1103/PhysRevC.104.044609
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Data from this article have been entered in the XUNDL database. For more information, click here.


2021SV02      Phys.Part. and Nucl.Lett. 18, 445 (2021)

A.I.Svirikhin, A.V.Yeremin, N.I.Zamyatin, I.N.Izosimov, A.V.Isaev, A.A.Kuznetsova, O.N.Malyshev, R.S.Mukhin, A.G.Popeko, Y.A.Popov, E.A.Sokol, B.Sailaubekov, M.S.Tezekbayeva, M.L.Chelnokov, V.I.Chepigin, B.Andel, S.Antalic, A.Bronis, P.Mosat, B.Gall, O.Dorvaux, A.Lopez-Martens, K.Hauschild

The New 249No Isotope

RADIOACTIVITY 249No, 245Fm(α) [from 204Pb(48Ca, X), E=225.4 MeV]; measured decay products, Eα, Iα; deduced Q-values, T1/2, an upper limit on the fission branch. Comparison with available data. SHELS separator using the GABRIELA detector array.

doi: 10.1134/s1547477121040154
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2021TE08      Bull.Rus.Acad.Sci.Phys. 85, 1167 (2021)

M.S.Tezekbayeva, A.V.Yeremin, O.N.Malyshev, A.V.Isaev, R.S.Mukhin, A.A.Kuznetsova, A.G.Popeko, Yu.A.Popov, A.I.Svirikhin, E.A.Sokol, M.L.Chelnokov, V.I.Chepigin, A.Lopez-Martens, K.Hauschild, O.Dorvaux, B.Gall, B.S.Sailaubekov

Spectroscopy of the Decay Properties of Transfermium Isotopes in Dubna

RADIOACTIVITY 256Rf(α), (SF) [from 208Pb(50Ti, 2n)256Rf, E not given]; 249,250,252,254No(α) [from 204,206,208Pb(48Ca, X)252No/254No/256No, E not given]; measured decay products, Eα, Iα, Eγ, Iγ, Eβ, Iβ; deduced level energies, J, π, T1/2. U-400 cyclotron at the Flerov Nuclear Reactions Laboratory of the Joint Institute for Nuclear Research and the SHELS kinematic separator.

doi: 10.3103/S1062873821100257
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2020CH44      Eur.Phys.J. A 56, 245 (2020)

R.Chakma, K.Hauschild, A.Lopez-Martens, A.V.Yeremin, O.N.Malyshev, A.G.Popeko, Yu.A.Popov, A.I.Svirikhin, V.I.Chepigin, O.Dorvaux, B.Gall, K.Kessaci

Gamma and conversion electron spectroscopy using GABRIELA

RADIOACTIVITY 133Ba(EC), 210Ra(IT) [from 170Er, 164Dy(50Ti, X), E not given]; measured decay products, Eβ, Iβ, Eγ, Iγ; deduced gamma and internal conversion electron spectroscopy efficiencies of heavy and superheavy nuclei. Comparison with the Geant4 Monte Carlo simulation toolkit.

doi: 10.1140/epja/s10050-020-00242-5
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2020KU23      Bull.Rus.Acad.Sci.Phys. 84, 932 (2020)

A.A.Kuznetsova, A.V.Yeremin, A.Lopez-Martens, K.Hauschild, A.G.Popeko, O.N.Malyshev, V.I.Chepigin, A.I.Svirikhin, A.V.Isaev, Yu.A.Popov, M.L.Chelnokov, O.Dorvaux, B.Gall, M.S.Tezekbayeva

Detailed Study of the Radioactive Decay Properties of No, Rf, and Db Isotopes

RADIOACTIVITY 256,258Rf(α), 250,252,254No, 256,257,258Db(SF); measured decay products, Eα, Iα; deduced T1/2, production σ.

doi: 10.3103/S1062873820080225
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2020YE02      Phys.Atomic Nuclei 83, 503 (2020)

A.V.Yeremin, A.G.Popeko, O.N.Malyshev, A.V.Isaev, A.A.Kuznetsova, Yu.A.Popov, A.I.Svirikhin, E.A.Sokol, M.S.Tezekbayeva, M.L.Chelnokov, V.I.Chepigin, A.Lopez-Martens, K.Hauschild, O.Dorvaux, B.Gall, J.Piot, S.Antalic, P.Mosat, D.Tonev, E.Stefanova

Spectroscopy of the Isotopes of Transfermium Elements in Dubna: Current Status and Prospects

NUCLEAR REACTIONS 242Pu(22Ne, X)264Rf, 238U(22Ne, X)260No, 248Cm(22Ne, X)270Sg, E not given; analyzed available data; deduced opportunities.

RADIOACTIVITY 256Rf(α), (SF) [from 208Pb(50Ti, X)256Rf, E not given]; analyzed available data; deduced T1/2, branching ratios.

doi: 10.1134/S1063778820040109
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2019LO08      Phys.Lett. B 795, 271 (2019)

A.Lopez-Martens, A.V.Yeremin, M.S.Tezekbayeva, Z.Asfari, P.Brionnet, O.Dorvaux, B.Gall, K.Hauschild, D.Ackermann, L.Caceres, M.L.Chelnokov, V.I.Chepigin, M.V.Gustova, A.V.Isaev, A.V.Karpov, A.A.Kuznetsova, J.Piot, O.N.Malyshev, A.G.Popeko, Yu.A.Popov, K.Rezynkina, H.Savajols, A.I.Svirikhin, E.A.Sokol, P.Steinegger

Measurement of proton-evaporation rates in fusion reactions leading to transfermium nuclei

NUCLEAR REACTIONS 209Bi(50Ti, X)256Db/257Db/258Db, E=255, 265, 275 MeV; measured reaction products, Eα, Iα; deduced σ.

doi: 10.1016/j.physletb.2019.06.010
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2019SV01      Phys.Part. and Nucl.Lett. 16, 768 (2019)

A.I.Svirikhin, A.V.Andreev, A.V.Yeremin, N.I.Zamyatin, I.N.Izosimov, A.V.Isaev, A.N.Kuznetsov, A.A.Kuznetsova, O.N.Malyshev, A.G.Popeko, Y.A.Popov, E.A.Sokol, M.S.Tezekbayeva, M.L.Chelnokov, V.I.Chepigin, T.M.Schneidman, B.Andel, S.Antalic, A.Bronis, P.Mosat, B.Gall, O.Dorvaux, B.M.Retailleau, K.Hauschild, A.Lopez-Martenz, P.Chauveau, E.Stefanova, D.Tonev

Prompt Neutrons from Spontaneous 254Rf Fission

doi: 10.1134/S1547477119060311
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2019YE03      Phys.Part. and Nucl.Lett. 16, 224 (2019)

A.V.Yeremin, M.S.Tezekbayeva, A.G.Popeko, O.N.Malyshev, A.Lopez-Martens, K.Hauschild, O.Dorvaux, B.Gall, A.V.Isaev, A.V.Karpov, A.N.Kuznetsov, A.A.Kuznetsova, Yu.A.Popov, A.I.Svirikhin, E.A.Sokol, M.L.Chelnokov, V.I.Chepigin, P.Moshat

Measurement of the Production Cross Sections for Isotopes of Transfermium Elements in Complete Fusion Reactions with the Subsequent Evaporation of a Proton and Neutrons

NUCLEAR REACTIONS 209Bi(50Ti, X)256Db/257Db/258Db, E=255, 265, 275 MeV; measured reaction products, Eα, Iα; deduced σ.

doi: 10.1134/S1547477119030099
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2018RE07      Phys.Rev. C 97, 054332 (2018)

K.Rezynkina, A.Lopez-Martens, K.Hauschild, I.Deloncle, S.Peru, P.Brionnet, M.L.Chelnokov, V.I.Chepigin, O.Dorvaux, F.Dechery, H.Faure, B.Gall, A.V.Isaev, I.N.Izosimov, D.E.Katrasev, A.N.Kuznetsov, A.A.Kuznetsova, O.N.Malyshev, A.G.Popeko, Y.A.Popov, E.A.Sokol, A.I.Svirikhin, A.V.Yeremin

Influence of octupole vibration on the low-lying structure of 251Fm and other heavy N = 151 isotones

RADIOACTIVITY 255No(α)[from 48Ca(208Pb, n), E=220 MeV and from ϵ decay of 255Lr produced in 48Ca(209Bi, 2n), E=214 MeV using the VASSILISSA separator with the GABRIELA spectrometer at FLNR-JINR, Dubna]; measured Eγ, Iγ, x rays, E(ce), I(ce), Eα, αγ-coin, (ce)α-coin, isomer half-life by γ(t) using implantation silicon detector strips for conversion electrons and α detection, and HPGe detector array for γ detection. 251Fm; deduced levels, J, π, conversion coefficients, multipolarities, B(M2), B(E3), and E3/M2 mixing ratio of 5/2+ to g.s transition. Comparison with previous experimental results, and with theoretical calculations. Systematics of low-lying excited states in 245Pu, 247Cm, 249Cf, 251Fm, 253No, 255Rf.

NUCLEAR STRUCTURE 246,247Cm, 248,249Cf, 250,251Fm, 252,253No, 254Rf; calculated energies of 2- phonon levels in even-A, and 5/2+ states from 2- phonon levels built on 9/2- ground states in odd-A nuclei, B(E3) using QRPA with Gogny D1M parametrization, configuration amplitudes for odd-A isotopes from QPM with Woods-Saxon potential. Comparison with experimental data.

doi: 10.1103/PhysRevC.97.054332
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Data from this article have been entered in the XUNDL database. For more information, click here.


2018SV02      Bull.Rus.Acad.Sci.Phys. 82, 632 (2018)

A.I.Svirikhin, A.V.Yeremin, A.V.Andreev, I.N.Izosimov, A.V.Isaev, A.N.Kuznetsov, A.A.Kuznetsova, O.N.Malyshev, A.G.Popeko, Y.A.Popov, E.A.Sokol, M.L.Chelnokov, V.I.Chepigin, T.M.Schneidman, B.Gall, O.Dorvaux, P.Brione, K.Hauschild, A.Lopez-Martenz, K.Rezynkina, S.Mullins, P.Jones, P.Mosat, B.Andel, Z.Kalaninova, M.Z.Asfari, N.Yoshihiro, J.Piot, E.Stefanova, D.Tonev

Short-Lived Isotopes of Transfermium Elements: Studying Characteristics of Spontaneous Fissioning

RADIOACTIVITY 256Rf, 250,252No(SF)[reaction created]; calculated formation of isotopes vs energy; compared with data (short- and long-lived isomers separately).

COMPILATION 236,238,240,242,244Pu, 242,244,246,248,250Cm, 249Bk, 246,250,252,254Cf, 244,246,256,258Fm, 250,252No, 256Rf, 258,260Md, 268Db(SF); 250,250m,252No; compiled average number of emitted neutrons accompanying spontaneous fission vs TKE; calculated spontaneous fission fragments TKE; compared with data.

doi: 10.3103/S1062873818060308
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2017AK02      Eur.Phys.J. A 53, 158 (2017)

N.V.Aksenov, P.Steinegger, F.Sh.Abdullin, Y.V.Albin, G.A.Bozhikov, V.I.Chepigin, R.Eichler, V.Ya.Lebedev, A.Sh.Madumarov, O.N.Malyshev, O.V.Petrushkin, A.N.Polyakov, Y.A.Popov, A.V.Sabelnikov, R.N.Sagaidak, I.V.Shirokovsky, M.V.Shumeiko, G.Ya.Starodub, Y.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin, A.V.Yeremin, S.N.Dmitriev

On the volatility of nihonium (Nh, Z = 113)

RADIOACTIVITY 288,289Mc(α)[from 243Am(48Ca, xn)]; measured Nh (Z=113) decay chains using Gas-Filled Recoil Separator with gas-phase chromatographic separation (JINR Dubna); deduced large retention of elemental Nh on teflon surface from non-observation of Nh decays.

doi: 10.1140/epja/i2017-12348-8
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2017SV02      Phys.Part. and Nucl.Lett. 14, 571 (2017)

A.I.Svirikhin, A.V.Andreev, A.V.Yeremin, I.N.Izosimov, A.V.Isaev, A.N.Kuznetsov, A.A.Kuznetsova, O.N.Malyshev, A.G.Popeko, Y.A.Popov, E.A.Sokol, M.L.Chelnokov, V.I.Chepigin, T.M.Schneidman, B.Gall, O.Dorvaux, P.Brione, K.Hauschild, A.Lopez-Martens, K.Rezynkina, S.Mullins, P.Jones, P.Mosat

Characteristics of spontaneous fission of 250No

NUCLEAR REACTIONS 204Pb(48Ca, xn), E=410-470 MeV; measured neutrons, fission fragments kinetic energy, TKEL, short-lived fragments; deduced σ vs E. 250No(SF), SF T1/2, average neutron multiplicity separately for each T1/2. 236,238,240,242,244Pu, 242,244,246,248,250Cm, 249Bk, 246,250,252,254Cf, 244,246,254,256,258Fm, 250,250m,252No, 256Rf, 258,260Md, 268Db; deduced, compiled systematics of average neutron multiplicity from SF (Spontaneous Fission) vs nucleus.

doi: 10.1134/S1547477117040161
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetF1329.


2016SV02      Phys.Part. and Nucl.Lett. 13, 480 (2016)

A.I.Svirikhin, A.V.Yeremin, I.N.Izosimov, A.V.Isaev, A.N.Kuznetsov, O.N.Malyshev, A.G.Popeko, Yu.A.Popov, E.A.Sokol, M.L.Chelnokov, V.I.Chepigin, B.Andel, M.Z.Asfari, B.Gall, N.Yoshihiro, Z.Kalaninova, S.Mullins, J.Piot, E.Stefanova, D.Tonev

Spontaneous fission of 256Rf, new data

RADIOACTIVITY 256Rf(SF)[from 208Pb(50Ti, 2n), E=237 MeV]; measured nuclei, Eα, Iα, fission fragments, En, In; deduced fission neutron multiplicity, spontaneous fission T1/2.

COMPILATION A=236-268; compiled spontaneous fission neutron multiplicity vs mass number.

doi: 10.1134/S1547477116040129
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset41613.


2015RE01      Acta Phys.Pol. B46, 623 (2015)

K.Rezynkina, K.Hauschild, A.Lopez-Martens, O.Dorvaux, B.Gall, F.Dechery, H.Faure, A.V.Yeremin, M.L.Chelnokov, V.I.Chepigin, A.V.Isaev, I.N.Izosimov, D.E.Katrasev, A.N.Kuznetsov, A.A.Kuznetsova, O.N.Malyshev, A.G.Popeko, Y.A.Popov, E.A.Sokol, A.I.Svirikhin, J.Piot, J.Rubert

First Experimental Tests of SHELS: a New Heavy Ion Separator at the JINR

NUCLEAR REACTIONS 208Pb(40Ar, xn)245Fm/246Fm, 164Dy(50Ti, xn)209Ra/210Ra/211Ra, E<220 MeV; measured reaction products, Eγ, Iγ; deduced yields.

doi: 10.5506/APhysPolB.46.623
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2015SV02      Bull.Rus.Acad.Sci.Phys. 79, 442 (2015); Izv.Akad.Nauk RAS, Ser.Fiz 79, 483 (2015)

A.I.Svirikhin, M.Gupta, A.V.Yeremin, I.N.Izosimov, A.V.Isaev, A.N.Kuznetsov, O.N.Malyshev, S.Mullins, A.G.Popeko, E.A.Sokol, M.L.Chelnokov, V.I.Chepigin

Investigating neutron multiplicity during the spontaneous fission of short-lived isotopes (Z ≥ 100) using the VASSILISSA recoil separator

RADIOACTIVITY 244,246Fm, 252No(SF); measured decay products, En, In; deduced neutron multiplicities, total kinetic energy spectra. Comparison with systematics for the average number of spontaneous fission neutrons depending on A and Coulomb parameter Z2/A1/3.

doi: 10.3103/S1062873815040310
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2014DM01      Mendeleev Commun. 24, 253 (2014)

S.N.Dmitriev, N.V.Aksenov, Y.V.Albin, G.A.Bozhikov, M.L.Chelnokov, V.I.Chepygin, R.Eichler, A.V.Isaev, D.E.Katrasev, V.Y.Lebedev, O.N.Malyshev, O.V.Petrushkin, L.S.Porobanuk, M.A.Ryabinin, A.V.Sabelnikov, E.A.Sokol, A.V.Svirikhin, G.Ya.Starodub, I.Usoltsev, G.K.Vostokin, A.V.Yeremin

Pioneering experiments on the chemical properties of element 113

NUCLEAR REACTIONS 243Am(48Ca, X)284Nh/285Nh, E=242 MeV; measured reaction products, Eα, Iα; deduced yields.

RADIOACTIVITY 288Mc, 284Nh, 280Rg, 276Mt, 272Bh(α), 268Db(SF); measured decay products, Eα, Iα; deduced α-particle energies, T1/2.

doi: 10.1016/j.mencom.2014.09.001
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2014LO10      Eur.Phys.J. A 50, 132 (2014)

A.Lopez-Martens, K.Hauschild, K.Rezynkina, O.Dorvaux, B.Gall, F.Dechery, H.Faure, A.V.Yeremin, M.L.Chelnokov, V.I.Chepigin, A.V.Isaev, I.N.Izosimov, D.E.Katrasev, A.N.Kuznetsov, A.A.Kuznetsova, O.N.Malyshev, A.G.Popeko, E.A.Sokol, A.I.Svirikhin, J.Piot, J.Rubert

Fine structure in the alpha decay of 224U

doi: 10.1140/epja/i2014-14132-8
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2012FO26      Phys.Part. and Nucl.Lett. 9, 496 (2012)

A.S.Fomichev, V.Chudoba, A.V.Daniel, M.S.Golovkov, V.A.Gorshkov, S.A.Krupko, Yu.Ts.Oganessian, G.S.Popeko, S.I.Sidorchuk, R.S.Slepnev, G.M.Ter Akopian, R.Wolski, V.I.Chepigin, D.E.Katrasev, O.N.Malyshev, A.I.Svirikhin, A.V.Yeremin, Ch.Briancon, K.Hauschild, A.Korichi, M.-H.Ha, F.Hanappe, O.Dorvaux, L.Stuttge

Study of complete and incomplete fusion for loosely bound projectiles 6He and 6Li on 165Ho and 166Er targets

NUCLEAR REACTIONS 165Ho(6Li, 5n), (6Li, 3nα), E=58 MeV; 166Er(6He, 6n), (6He, 4nα), E=64 MeV; measured reaction products, Eα, Iα, Eγ, Iγ; deduced partial σ, complete fusion suppression factors. Comparison with EMPIRE and TALYS nuclear model code calculations.

doi: 10.1134/S1547477112060076
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2012SV01      Phys.Part. and Nucl.Lett. 9, 24 (2012); Pisma Zh.Fiz.Elem.Chast.Atom.Yadra No.1 (171), 43 (2012)

A.I.Svirikhin, M.Gupta, A.V.Eremin, I.N.Izosimov, A.V.Isaev, A.N.Kuznetsov, O.N.Malyshev, S.Mulins, A.G.Popeko, E.A.Sokol, M.L.Chelnokov, V.I.Chepihin

Investigation into the neutron multiplicity of spontaneously fissioning short-lived heavy nuclei at the VASSILISSA separator

RADIOACTIVITY 246Fm, 248Cm(SF); measured fission products; deduced neutron multiplicity, total kinetic energy. Systematics of average neutron number per spontaneous fission event in relation to A and Z.

doi: 10.1134/S1547477112010141
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2012SV02      Eur.Phys.J. A 48, 121 (2012)

A.I.Svirikhin, A.V.Andreev, V.N.Dushin, M.L.Chelnokov, V.I.Chepigin, M.Gupta, A.V.Isaev, I.N.Izosimov, D.E.Katrasev, A.N.Kuznetsov, O.N.Malyshev, S.Mullins, A.G.Popeko, E.A.Sokol, A.V.Yeremin

The emission of prompt neutrons from the spontaneous fission of 252No and 244Fm

RADIOACTIVITY 244Fm(SF)[from 206Pb(40Ar, 2n), E≈186 MeV];252No(SF)[from 206Pb(48Ca, 2n), E≈216 MeV]; measured spontaneous fission prompt En, In using 3He-filled counters, ER, fission fragments, Eα, Iα; calculated average TKE, average neutron multiplicity; deduced neutron multiplicity distribution, average neutron multiplicity. 244Fm deduced pre-neutron TKE.

doi: 10.1140/epja/i2012-12121-7
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2011HA06      Acta Phys.Pol. B42, 605 (2011)

T.W.Hagen, A.Lopez-Martens, K.Hauschild, A.V.Belozerov, M.L.Chelnokov, V.I.Chepigin, D.Curien, O.Dorvaux, G.Drafta, B.Gall, A.Gorgen, M.Guttormsen, A.V.Isaev, I.N.Izosimov, A.P.Kabachenko, D.E.Katrasev, T.Kutsarova, A.N.Kuznetsov, A.C.Larsen, O.N.Malyshev, A.Minkova, S.Mullins, H.T.Nyhus, D.Pantelica, J.Piot, A.G.Popeko, S.Saro, N.Scintee, S.Siem, E.A.Sokol, A.I.Svirikhin, A.V.Yeremin

Spectroscopy of Transfermium Nuclei Using the GABRIELA Setup

COMPILATION 243Pu, 245Cm, 247Cf, 249Fm, 251No; compiled low-energy level properties for N=149 isotones.

doi: 10.5506/APhysPolB.42.605
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2011LO06      Nucl.Phys. A852, 15 (2011)

A.Lopez-Martens, T.Wiborg-Hagen, K.Hauschild, M.L.Chelnokov, V.I.Chepigin, D.Curien, O.Dorvaux, G.Drafta, B.Gall, A.Gorgen, M.Guttormsen, A.V.Isaev, I.N.Izosimov, A.P.Kabachenko, D.E.Katrasev, T.Kutsarova, A.N.Kuznetsov, A.C.Larsen, O.N.Malyshev, A.Minkova, S.Mullins, H.T.Nyhus, D.Pantelica, J.Piot, A.G.Popeko, S.Saro, N.Scintee, S.Siem, N.U.H.Syed, E.A.Sokol, A.I.Svirikhin, A.V.Yeremin

Spectroscopy of 253No and its daughters

NUCLEAR REACTIONS 207Pb(48Ca, 2n), (48Ca, 3n), E=220 MeV; measured Eα, Iα, Eγ, Iγ, E(ce), I(ce), αγ, α(ce)-coin; deduced ICCs, multipolarities, Qα. 253No, 249Fm; deduced levels, J, π, T1/2.

doi: 10.1016/j.nuclphysa.2011.01.012
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2010EI01      Radiochim.Acta 98, 133 (2010)

R.Eichler, N.V.Aksenov, Yu.V.Albin, A.V.Belozerov, G.A.Bozhikov, V.I.Chepigin, S.N.Dmitriev, R.Dressler, H.W.Gaggeler, V.A.Gorshkov, R.A.Henderson, A.M.Johnsen, J.M.Kenneally, V.Ya.Lebedev, O.N.Malyshev, K.J.Moody, Yu.Ts.Oganessian, O.V.Petrushkin, D.Piguet, A.G.Popeko, P.Rasmussen, A.Serov, D.A.Shaughnessy, S.V.Shishkin, A.V.Shutov, M.A.Stoyer, N.J.Stoyer, A.I.Svirikhin, E.E.Tereshatov, G.K.Vostokin, M.Wegrzecki, P.A.Wilk, D.Wittwer, A.V.Yeremin

Indication for a volatile element 114

RADIOACTIVITY 287,288Fl(α); measured atomic properties of element 114; deduced volatility. Comparison with Hg, At, and element 112 (Cn).

doi: 10.1524/ract.2010.1705
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2010SV01      Eur.Phys.J. A 44, 393 (2010)

A.I.Svirikhin, V.N.Dushin, M.L.Chelnokov, V.I.Chepigin, I.N.Izosimov, D.E.Katrasev, O.N.Malyshev, A.Minkova, A.G.Popeko, E.A.Sokol, A.V.Yeremin

Neutron multiplicity at spontaneous fission of 246Fm

RADIOACTIVITY 246Fm(SF)[from 208Pb(40Ar, 2n), E=186 MeV]; measured En, In(θ), Eα, Iα, E(particle), I(particle), (particle)n-coin; deduced neutron multiplicity, T1/2, spontaneous fission branching ratio.

NUCLEAR REACTIONS 208Pb(40Ar, 2n), E=186 MeV; measured σ.

doi: 10.1140/epja/i2010-10968-0
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2009OG03      Phys.Rev. C 79, 024608 (2009)

Yu.Ts.Oganessian, S.N.Dmitriev, A.V.Yeremin, N.V.Aksenov, G.A.Bozhikov, V.I.Chepigin, M.L.Chelnokov, V.Ya.Lebedev, O.N.Malyshev, O.V.Petrushkin, S.V.Shishkin, A.I.Svirikhin, E.E.Tereshatov, G.K.Vostokin

Attempt to produce the isotopes of element 108 in the fusion reaction 136Xe+136Xe

NUCLEAR REACTIONS 136Xe(136Xe, xn)269Hs/270HS/271Hs, E=750 MeV;measured Eα, Iα, upper limit of production σ for Z=108 element; deduced fusion probability. Calculated excitation functions for one-neutron to four-neutron channels. Ti(136Xe, xn)168Os/169Os/170Os/171Os/172Os/, E=750 MeV; measured Eα, Iα.

doi: 10.1103/PhysRevC.79.024608
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2008EI03      Angew.Chem. 47, 3262 (2008)

R.Eichler, N.V.Aksenov, A.V.Belozerov, G.A.Bozhikov, V.I.Chepigin, S.N.Dmitriev, R.Dressler, H.W.Gaggeler, A.V.Gorshkov, M.G.Itkis, F.Haenssler, A.Laube, V.Y.Lebedev, O.N.Malyshev, Y.T.Oganessian, O.V.Petrushkin, D.Piguet, A.G.Popeko, P.Rasmussen, S.V.Shishkin, A.A.Serov, A.V.Shutov, A.I.Svirikhin, E.E.Tereshatov, G.K.Vostokin, M.Wegrzecki, A.V.Yeremin

Thermochemical and Physical Properties of Element 112

RADIOACTIVITY 287Fl, 283Cn(α), 279Ds(SF) [from 242Pu(48Ca, 3n)297Fl, E=270 MeV]; 185Hg(α) [from 142Nd(48Ca, 5n)185Hg, E=270 MeV]; 219Rn(α) [from 242Pu(48Ca, X)219Rn, E=270 MeV]; measured decay products, Eα, Iα; deduced standard sublimation enthalpy, linear relationships for various compound classes on various chromatographic materials, volatility for element 112.

doi: 10.1002/anie.200705019
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2008HA12      Phys.Rev. C 77, 047305 (2008); Erratum Phys.Rev. C 79, 019902 (2009)

K.Hauschild, A.Lopez-Martens, A.V.Yeremin, O.Dorvaux, A.V.Belozerov, M.L.Chelnokov, V.I.Chepigin, B.Gall, V.A.Gorshkov, M.Guttormsen, P.Jones, A.P.Kabachenko, A.Khouaja, A.C.Larsen, O.N.Malyshev, A.Minkova, H.T.Nyhus, Yu.Ts.Oganessian, D.Pantelica, A.G.Popeko, F.Rotaru, S.Saro, A.V.Shutov, S.Siem, A.I.Svirikhin, N.U.H.Syed

Half-life and excitation energy of the Iπ = 13/2+ isomer in 209Ra

NUCLEAR REACTIONS 174Yb(40Ar, 5n), E=192 MeV; measured half-life, α-spectra, Eγ, Iγ, γγ-, γα-coin, conversion electrons. 209Ra; deduced levels, J, π, configurations. 205,207Po, 207,209Rn, 211Ra; systematics.

doi: 10.1103/PhysRevC.77.047305
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2008HA31      Phys.Rev. C 78, 021302 (2008)

K.Hauschild, A.Lopez-Martens, A.V.Yeremin, O.Dorvaux, S.Antalic, A.V.Belozerov, Ch.Briancon, M.L.Chelnokov, V.I.Chepigin, D.Curien, B.Gall, A.Gorgen, V.A.Gorshkov, M.Guttormsen, F.Hanappe, A.P.Kabachenko, F.Khalfallah, A.C.Larsen, O.N.Malyshev, A.Minkova, A.G.Popeko, M.Rousseau, N.Rowley, S.Saro, A.V.Shutov, S.Siem, L.Stuttge, A.I.Svirikhin, N.U.H.Syed, Ch.Theisen, M.Venhart

High-K, t1/2=1.4(1) ms, isomeric state in 255Lr

RADIOACTIVITY 255Lr, 255No(α) [from 209Bi(48Ca, 2n), E=219 MeV]; measured Eα, Iα, conversion electrons, Eγ, Iγ, γα-, (ce)α-coin. 255Lr; deduced levels, J, π, hindrance factors, half-life of isomeric state.

doi: 10.1103/PhysRevC.78.021302
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2007EI02      Nucl.Phys. A787, 373c (2007)

R.Eichler, N.V.Aksenov, A.V.Belozerov, G.A.Bozhikov, V.I.Chepigin, R.Dressler, S.N.Dmitriev, H.W.Gaggeler, V.A.Gorshkov, F.Haenssler, M.G.Itkis, V.Ya.Lebedev, A.Laube, O.N.Malyshev, Yu.Ts.Oganessian, O.V.Petruschkin, D.Piguet, P.Rasmussen, S.V.Shishkin, A.V.Shutov, A.I.Svirikhin, E.E.Tereshatov, G.K.Vostokin, M.Wegrzecki, A.V.Yeremin

Confirmation of the Decay of 283112 and First Indication for Hg-like Behavior of Element 112

NUCLEAR REACTIONS 238U(48Ca, 3n), 242Pu(48Ca, 3n), E=237 MeV; measured super heavy element yield, Eα, Iα; analyzed production σ.

NUCLEAR STRUCTURE 279Ds, 283Cn, 287Fl; analyzed superheavy element production and decay data.

RADIOACTIVITY 283Cn(α); 287Fl(α), (SF); measured Eα, E(fragment), T1/2.

doi: 10.1016/j.nuclphysa.2006.12.058
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2007EI03      Nature(London) 447, 72 (2007)

R.Eichler, N.V.Aksenov, A.V.Belozerov, G.A.Bozhikov, V.I.Chepigin, S.N.Dmitriev, R.Dressler, H.W.Gaggeler, V.A.Gorshkov, F.Haenssler, M.G.Itkis, A.Laube, V.Ya.Lebedev, O.N.Malyshev, Yu.Ts.Oganessian, O.V.Petrushkin, D.Piguet, P.Rasmussen, S.V.Shishkin, A.V.Shutov, A.I.Svirikhin, E.E.Tereshatov, G.K.Vostokin, M.Wegrzecki, A.V.Yeremin

Chemical characterization of element 112

RADIOACTIVITY 287Fl, 283Cn(α), 279Ds(SF) [from 242Pu(48Ca, 3n)297Fl, E=270 MeV]; 185Hg(α) [from 142Nd(48Ca, 5n)185Hg, E=270 MeV]; 219Rn(α) [from 242Pu(48Ca, X)219Rn, E=270 MeV]; measured decay products, Eα, Iα; deduced Q-values, T1/2, element 112 chemical identification.

doi: 10.1038/nature05761
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2007LO11      Eur.Phys.J. A 32, 245 (2007)

A.Lopez-Martens, K.Hauschild, A.V.Yeremin, O.Dorvaux, A.V.Belozerov, Ch.Briancon, M.L.Chelnokov, V.I.Chepigin, D.Curien, P.Desesquelles, B.Gall, V.A.Gorshkov, M.Guttormsen, F.Hanappe, A.P.Kabachenko, F.Khalfallah, A.Korichi, A.C.Larsen, O.N.Malyshev, A.Minkova, Yu.Ts.Oganessian, A.G.Popeko, M.Rousseau, N.Rowley, R.N.Sagaidak, S.Sharo, A.V.Shutov, S.Siem, L.Stuttge, A.I.Svirikhin, N.U.H.Syed, Ch.Theisen

Isomeric states in 253No

NUCLEAR REACTIONS 207Pb(48Ca, 2n), E∼217 MeV; measured Eα, Eγ, E(ce) with the Gabriela detector. 253No deduced levels, J, π, configurations.

RADIOACTIVITY 253No(α) [from 207Bi(48Ca, 2n) and subsequent decay]; measured Eα, Eγ, E(ce), αγ-, α(ce)-coin, T1/2. 253No deduced levels, J, π, configurations.

doi: 10.1140/epja/i2007-10391-8
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2006HA17      Nucl.Instrum.Methods Phys.Res. A560, 388 (2006)

K.Hauschild, A.V.Yeremin, O.Dorvaux, A.Lopez-Martens A.V.Belozerov, Ch.Briancon, M.L.Chelnokov, V.I.Chepigin, S.A.Garcia-Santamaria, V.A.Gorshkov, F.Hanappe, A.P.Kabachenko, A.Korichi, O.N.Malyshev, Yu.Ts.Oganessian, A.G.Popeko, N.Rowley, A.V.Shutov, L.Stuttge, A.I.Svirikhin

GABRIELA: A new detector array of γ-ray and conversion electron spectroscopy of transfermium elements

RADIOACTIVITY 210,211,212Ra(IT) [from 174Yb(40Ar, xn)]; measured Eγ, Iγ, γγ-coin, T1/2. 210,211,212Ra deduced levels, J, π, T1/2. Recoil separator.

doi: 10.1016/j.nima.2006.01.107
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2006LO12      Phys.Rev. C 74, 044303 (2006)

A.Lopez-Martens, K.Hauschild, A.V.Yeremin, A.V.Belozerov, Ch.Briancon, M.L.Chelnokov, V.I.Chepigin, D.Curien, O.Dorvaux, B.Gall, V.A.Gorshkov, M.Guttormsen, F.Hanappe, A.P.Kabachenko, F.Khalfallah, A.Korichi, A.C.Larsen, O.N.Malyshev, A.Minkova, Yu.Ts.Oganessian, A.G.Popeko, M.Rousseau, N.Rowley, R.N.Sagaidak, S.Sharo, A.V.Shutov, S.Siem, A.I.Svirikhin, N.U.H.Syed, Ch.Theisen

Detailed spectroscopy of 249Fm

RADIOACTIVITY 253No(α) [from 207Pb(48Ca, 2n)]; measured Eα, Eγ, αγ-coin. 249Fm deduced levels, J, π, ICC, configurations. Level systematics in neighboring isotones discussed.

doi: 10.1103/PhysRevC.74.044303
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2006PO10      Phys.Atomic Nuclei 69, 1183 (2006)

A.G.Popeko, A.V.Belozerov, Ch.Briancon, V.I.Chepigin, O.Dorvaux, K.Hauschild, A.P.Kabachenko, A.Korichi, A.Lopez-Martens, O.N.Malyshev, Yu.Ts.Oganessian, S.Saro, A.V.Shutov, A.I.Svirikhin, A.V.Yeremin

GABRIELA Setup for Nuclear Spectroscopy of the Transfermium Element Isotopes at the VASSILISSA Separator

NUCLEAR REACTIONS 164Dy(48Ca, 5n), E not given; measured Eγ, Iγ, (particle)γ-coin.

RADIOACTIVITY 253No(α) [from 207Pb(48Ca, 2n)]; measured Eγ, E(ce), γα-, (ce)α-coin. 249Fm deduced levels, J, π. 255No(α) [from 208Pb(48Ca, n)]; measured prompt and delayed αγ-, αβ-coin. 251Fm deduced isomeric state.

doi: 10.1134/S1063778806070143
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2005YE02      Nucl.Instrum.Methods Phys.Res. A539, 441 (2005)

A.V.Yeremin, A.V.Belozerov, M.L.Chelnokov, V.I.Chepigin, V.A.Gorshkov, A.P.Kabachenko, O.N.Malyshev, A.G.Popeko, R.N.Sagaidak, A.V.Shutov, E.A.Sokol, A.I.Svirikhin

Neutron detector at the focal plane of the set up VASSILISSA

RADIOACTIVITY 252No(SF) [from 206Pb(48Ca, 2n)]; measured fission fragments spectra, prompt neutron multiplicity. Recoil separator.

doi: 10.1016/j.nima.2004.09.043
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2004HO09      Nucl.Phys. A734, 93 (2004)

S.Hofmann, F.P.Hessberger, D.Ackermann, S.Antalic, P.Cagarda, B.Kindler, P.Kuusiniemi, M.Leino, B.Lommel, O.N.Malyshev, R.Mann, G.Munzenberg, A.G.Popeko, S.Saro, B.Streicher, A.V.Yeremin

Properties of heavy nuclei measured at the GSI SHIP

doi: 10.1016/j.nuclphysa.2004.01.018
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2004MA01      Nucl.Instrum.Methods Phys.Res. A516, 529 (2004)

O.N.Malyshev, A.V.Yeremin, A.G.Popeko, A.V.Belozerov, M.L.Chelnokov, V.I.Chepigin, V.A.Gorshkov, S.Hofmann, M.G.Itkis, A.P.Kabachenko, Yu.Ts.Oganessian, R.N.Sagaidak, S.Saro, A.V.Shutov, A.I.Svirikhin

In-beam separation and mass determination of superheavy nuclei. Part II

NUCLEAR REACTIONS 174Yb(48Ca, 5n), (48Ca, 6n), (48Ca, 4nα), E=216 MeV; 198Pt(48Ca, 4n), E=215 MeV; 206,208Pb(48Ca, 2n), E ≈ 218 MeV; 238U(48Ca, 3n), E=234 MeV; measured evaporation residue charge state distributions. Recoil-decay tagging, mass separator.

doi: 10.1016/j.nima.2003.08.118
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2004OG02      Eur.Phys.J. A 19, 3 (2004)

Yu.Ts.Oganessian, A.V.Yeremin, A.G.Popeko, O.N.Malyshev, A.V.Belozerov, G.V.Buklanov, M.L.Chelnokov, V.I.Chepigin, V.A.Gorshkov, S.Hofmann, M.G.Itkis, A.P.Kabachenko, B.Kindler, G.Munzenberg, R.N.Sagaidak, S.Saro, H.-J.Schott, B.Streicher, A.V.Shutov, A.I.Svirikhin, G.K.Vostokin

Second experiment at VASSILISSA separator on the synthesis of the element 112

NUCLEAR REACTIONS 238U(48Ca, 3n), E ≈ 232 MeV; measured production σ. Mass separator, recoil-decay tagging.

RADIOACTIVITY 283Cn(SF) [from 238U(48Ca, 3n)]; measured T1/2.

doi: 10.1140/epja/i2003-10113-4
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2004OG06      Nucl.Phys. A734, 196 (2004)

Yu.Ts.Oganessian, A.V.Yeremin, A.G.Popeko, O.N.Malyshev, A.V.Belozerov, G.Buklanov, M.L.Chelnokov, V.I.Chepigin, V.A.Gorshkov, S.Hofmann, M.G.Itkis, A.P.Kabachenko, B.Kindler, G.Munzenberg, R.N.Sagaidak, S.Saro, H.-J.Schott, B.Streicher, A.V.Shutov, A.I.Svirikhin, G.K.Vostokin

In-Flight Separation and Mass Selection of Heavy Evaporation Residues

NUCLEAR REACTIONS 238U(48Ca, 3n), E=234 MeV; measured production σ. Mass separator.

RADIOACTIVITY 283Cn(SF) [from 238U(48Ca, 3n)]; measured T1/2. Mass-separated source.

doi: 10.1016/j.nuclphysa.2004.01.033
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2004YA09      Nucl.Phys. A734, 204 (2004)

A.B.Yakushev, I.Zvara, Yu.Ts.Oganessian, A.V.Belozerov, S.N.Dmitriev, B.Eichler, S.Hubener, E.A.Sokol, A.Turler, A.V.Yeremin, G.V.Buklanov, M.L.Chelnokov, V.I.Chepigin, V.A.Gorshkov, A.V.Gulyaev, V.Ya.Lebedev, O.N.Malyshev, A.G.Popeko, S.Soverna, Z.Szeglowski, S.N.Timokhin, S.P.Tretyakova, V.M.Vasko, M.G.Itkis

Chemical identification and properties of element 112

NUCLEAR REACTIONS U(48Ca, xn), E ≈ 230 MeV; measured fission fragment spectra following residual nucleus decay; deduced evidence for 283Cn. Chemical properties discussed.

doi: 10.1016/j.nuclphysa.2004.01.035
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2003BE18      Eur.Phys.J. A 16, 447 (2003)

A.V.Belozerov, M.L.Chelnokov, V.I.Chepigin, T.P.Drobina, V.A.Gorshkov, A.P.Kabachenko, O.N.Malyshev, I.M.Merkin, Yu.Ts.Oganessian, A.G.Popeko, R.N.Sagaidak, A.I.Svirikhin, A.V.Yeremin, G.Berek, I.Brida, S.Saro

Spontaneous-fission decay properties and production cross-sections for the neutron-deficient nobelium isotopes formed in the 44, 48Ca + 204, 206, 208Pb reactions

NUCLEAR REACTIONS 208Pb(44Ca, 2n), (44Ca, 3n), (48Ca, 2n), (48Ca, 3n), (48Ca, 4n), E ≈ 200-240 MeV; 206Pb(48Ca, n), (48Ca, 2n), (48Ca, 3n), (48Ca, 4n), E ≈ 200-240 MeV; 204Pb(48Ca, 2n), (48Ca, 3n), E ≈ 200-240 MeV; measured σ. Mass separator, comparison with previous results and statistical model predictions.

RADIOACTIVITY 248,249,250,252No(SF), (α) [from 204,206,208Pb(44,46,48Ca, xn)]; measured fission T1/2, α-branching ratios. Comparison with model predictions.

doi: 10.1140/epja/i2002-10109-6
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2003PO08      Nucl.Instrum.Methods Phys.Res. A510, 371 (2003)

A.G.Popeko, O.N.Malyshev, A.V.Yeremin, A.V.Belozerov, M.L.Chelnokov, V.I.Chepigin, V.A.Gorshkov, M.G.Itkis, A.P.Kabachenko, Yu.Ts.Oganessian, R.N.Sagaidak, A.V.Shutov, A.I.Svirikhin

In-beam separation and mass determination of superheavy nuclei. Part I

NUCLEAR REACTIONS 164Dy(40Ar, 6n), E not given; 208Pb(40Ar, 2n), E not given; measured fragment yields. 204Pb(48Ca, X), 208Pb(44Ca, X), E not given; measured (recoil)(decay)-coin; deduced evidence for 249,250No.

RADIOACTIVITY 249,250No [from 204Pb(48Ca, X), 208Pb(44Ca, X)]; measured T1/2.

doi: 10.1016/S0168-9002(03)01823-0
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2003YA22      Radiochim.Acta 91, 433 (2003)

A.B.Yakushev, I.Zvara, Yu.Ts.Oganessian, A.V.Belozerov, S.N.Dmitriev, B.Eichler, S.Hubener, E.A.Sokol, A.Turler, A.V.Yeremin, G.V.Buklanov, M.L.Chelnokov, V.I.Chepigin, V.A.Gorshkov, A.V.Gulyaev, V.Ya.Lebedev, O.N.Malyshev, A.G.Popeko, S.Soverna, Z.Szeglowski, S.N.Timokhin, S.P.Tretyakova, V.M.Vasko, M.G.Itkis

Chemical identification and properties of element 112

NUCLEAR REACTIONS 238U(48Ca, 3n), E ≈ 233 MeV; measured radiochemical yield; deduced chemical properties.

doi: 10.1524/ract.91.8.433.20010
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2003YE02      Yad.Fiz. 66, 1078 (2003); Phys.Atomic Nuclei 66, 1042 (2003)

A.V.Yeremin, A.V.Belozerov, M.L.Chelnokov, V.I.Chepigin, V.A.Gorshkov, A.P.Kabachenko, O.N.Malyshev, Yu.Ts.Oganessian, A.G.Popeko, R.N.Sagaidak, A.I.Svirikhin, S.Hofmann, G.Berek, I.Brida, S.Saro

The Upgrade of the Kinematic Separator VASSILISSA-Experimental Results and Plans

NUCLEAR REACTIONS 208Pb(16O, xn), 197Au, 208Pb, 232Th(20Ne, xn), 190Os, 194,196,198Pt, 197Au, 205Tl, 208Pb, 209Bi, 232Th, 236,238U(22Ne, xn), 181Ta, 197Au, 208Pb(24Mg, xn), 181Ta, 197Au, 207,208Pb, 232Th(26Mg, xn), 175Lu, 197Au, 232Th, 238U(27Al, xn), 169Tm, 181Ta, 232Th(31P, xn), 175Lu(35Cl, xn), 159Tb, 165Ho, 182W(40Ar, xn), 151,153Eu, 159Tb(40Ca, xn), 208Pb(44Ca, xn), 174,176Yb, 204,206,208Pb, 232Th, 239U, 242Pu(48Ca, xn), E*=20-140 MeV; measured excitation functions; deduced maximum σ.

RADIOACTIVITY 249,250No(α), (SF); measured T1/2, α-branching ratio. 248No(α); measured T1/2 lower limit.

doi: 10.1134/1.1586416
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2002OG07      Part. and Nucl., Lett. 110, 5 (2002)

Yu.Ts.Oganessian, A.V.Yeremin, A.V.Belozerov, G.Berek, I.Brida, M.L.Chelnokov, V.I.Chepigin, V.A.Gorshkov, A.P.Kabachenko, S.P.Korotkov, O.N.Malyshev, A.G.Popeko, L.A.Rubinskaya, R.N.Sagaidak, E.M.Smirnova, A.I.Svirikhin

Kinematic Separation and Mass Analysis of Heavy Recoiling Nuclei

NUCLEAR REACTIONS 238U, 232Th, 242Pu(48Ca, 3n), E ≈ 230 MeV; measured σ. 164Dy(40Ar, 7n), E=190-210 MeV; measured evaporation residue yields, charge states. Mass separator.


2001YA19      Radiochim.Acta 89, 743 (2001)

A.B.Yakushev, G.V.Buklanov, M.L.Chelnokov, V.I.Chepigin, S.N.Dmitriev, V.A.Gorshkov, S.Hubener, V.Ya.Lebedev, O.N.Malyshev, Yu.Ts.Oganessian, A.G.Popeko, E.A.Sokol, S.N.Timokhin, A.Turler, V.M.Vasko, A.V.Yeremin, I.Zvara

First attempt to chemically identify element 112

NUCLEAR REACTIONS Nd, U(48Ca, xn), E=234 MeV; measured radiochemical yields; deduced element 112 production σ upper limit.


2000MA65      Eur.Phys.J. A 8, 295 (2000)

O.N.Malyshev, A.V.Belozerov, M.L.Chelnokov, V.I.Chepigin, V.A.Gorshkov, A.P.Kabachenko, A.P.Popeko, J.Rohac, R.N.Sagaidak, A.V.Yeremin, S.I.Mulgin, S.V.Zhdanov

The New Isotope 217U

NUCLEAR REACTIONS 182W(40Ar, 5n), E=193 MeV; measured σ.

RADIOACTIVITY 217U(α) [from 182W(40Ar, 5n)]; measured Eα, T1/2. Comparison with neighboring nuclei.

doi: 10.1007/s100500070082
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1999BO52      Yad.Fiz. 62, No 11, 1931 (1999); Phys.Atomic Nuclei 62, 1794 (1999)

D.D.Bogdanov, M.Veselsky, A.V.Yeremin, A.P.Kabachenko, O.N.Malyshev, Yu.A.Muzychka, B.I.Pustylnik, A.G.Popeko, R.N.Sagaidak, G.M.Ter-Akopian, V.I.Chepigin

Cross Sections for the Production of Pa, Th, and Ac Isotopes in the Decays of Highly Excited Compound Nuclei 221, 223, 225, 227Pa Formed in Reactions Featuring 20, 22Ne and 24, 26Mg Ions

NUCLEAR REACTIONS 197Au(24Mg, X)217Pa/216Pa/215Pa/217Th/216Th/215Th/214Th/213Th/214Ac/213Ac/212Ac/211Ac/210Ac, E<176 MeV; 197Au(26Mg, X)218Pa/217Pa/217Th/216Th/216Ac/215Ac/214Ac/213Ac, E<164 MeV; 205Tl(22Ne, X)224Pa/223Pa/222Pa/221Pa/223Th/222Th/221Th/221Ac/220Ac/219Ac, E<145 MeV; measured residual production σ; calculated residual production σ. Statistical Model calculations, VASILISA separator.

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0231.


1999OG02      Acta Phys.Slovaca 49, 65 (1999)

Yu.Ts.Oganessian, A.V.Yeremin, V.I.Chepigin, M.G.Itkis, A.P.Kabachenko, O.Konstantinesky, M.Konstantinesky, O.N.Malyshev, A.G.Popeko, J.Rohac, R.N.Sagaidak, I.V.Shirokovsky, V.K.Utyonkov, S.Hofmann, G.Munzenberg, M.Veselsky, S.Saro, N.Iwasa, K.Morita, A.Yoneda, M.Hussonnois

Experiments on the Synthesis of Superheavy Elements with Z = 110, 112 via 232Th, 238U + 48Ca Reactions

NUCLEAR REACTIONS 232Th(48Ca, X), E=260 MeV; 238U(48Ca, X), E=231, 238 MeV measured residuals α-decay, spontaneous fission; deduced evidence for 277Ds, 283Cn. 283Cn deduced T1/2.


1999OG05      Eur.Phys.J. A 5, 63 (1999)

Yu.Ts.Oganessian, A.V.Yeremin, G.G.Gulbekian, S.L.Bogomolov, V.I.Chepigin, B.N.Gikal, V.A.Gorshkov, M.G.Itkis, A.P.Kabachenko, V.B.Kutner, A.Yu.Lavrentev, O.N.Malyshev, A.G.Popeko, J.Rohac, R.N.Sagaidak, S.Hofmann, G.Munzenberg, M.Veselsky, S.Saro, N.Iwasa, K.Morita

Search for New Isotopes of Element 112 by Irradiation of 238U with 48Ca

NUCLEAR REACTIONS 238U(48Ca, X), E=231, 238 MeV; measured Eα, fission products kinetic energy following residual decay; deduced evidence for 283Cn.

doi: 10.1007/s100500050257
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1999OG07      Nature(London) 400, 242 (1999)

Yu.Ts.Oganessian, A.V.Yeremin, A.G.Popeko, S.L.Bogomolov, G.V.Buklanov, M.L.Chelnokov, V.I.Chepigin, B.N.Gikal, V.A.Gorshkov, G.G.Gulbekian, M.G.Itkis, A.P.Kabachenko, A.Yu.Lavrentev, O.N.Malyshev, J.Rohac, R.N.Sagaidak, S.Hofmann, S.Saro, G.Giardina, K.Morita

Synthesis of Nuclei of the Superheavy Element 114 in Reactions Induced by 48Ca

NUCLEAR REACTIONS 242Pu(48Ca, 3n), E=235 MeV; measured residual nucleus decay; deduced production σ. Mass separator.

RADIOACTIVITY 287Fl(α) [from 242Pu(48Ca, 3n)]; measured Eα, T1/2. 283Cn(SF); measured T1/2.

doi: 10.1038/22281
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1999OG08      Acta Phys.Pol. B30, 1557 (1999)

Yu.Ts.Oganessian, A.V.Yeremin, R.N.Sagaidak, O.N.Malyshev, A.G.Popeko, A.P.Kabachenko, V.I.Chepigin, J.Rohac, V.A.Gorshkov, A.Yu.Lavrentev, M.G.Itkis, G.G.Gulbekian, B.N.Gikal, A.V.Tikhomirov, V.B.Kutner, S.L.Bogomolov

FLNR JINR Experiments on Synthesis of Superheavy Nuclei with 48Ca Beam

NUCLEAR REACTIONS 232Th(48Ca, 3n), (48Ca, 4n), E=255 MeV; 238U(48Ca, 3n), (48Ca, 4n), E=264 MeV; measured production σ. Superheavy elements.

RADIOACTIVITY 283Cn(SF); measured T1/2, total SF kinetic energy.


1997AN02      Yad.Fiz. 60, No 1, 5 (1997); Phys.Atomic Nuclei 60, 1 (1997)

A.N.Andreyev, D.D.Bogdanov, A.V.Yeremin, A.P.Kabachenko, O.N.Malyshev, A.G.Popeko, R.N.Sagaidak, G.M.Ter-Akopian, V.I.Chepigin, V.Ninov, S.Hofmann, F.P.Hessberger, H.Folger, S.Saro

Cross Sections for the Formation of Evaporation Products in 24Mg + 197Au and 51V + 170Er Interactions

NUCLEAR REACTIONS, ICPND 170Er(51V, 4n), (51V, 5n), (51V, 6n), (51V, 7n), (51V, 3np), (51V, 4np), (51V, 5np), (51V, 6np), (51V, 7np), (51V, 3nα), (51V, 4nα), (51V, 5nα), (51V, 6nα), (51V, 7nα), E not given; 197Au(24Mg, 4n), (24Mg, 5n), (24Mg, 6n), (24Mg, 3np), (24Mg, 4np), (24Mg, 5np), (24Mg, 6np), (24Mg, 7np), (24Mg, 3nα), (24Mg, 4nα), (24Mg, 5nα), (24Mg, 6nα), (24Mg, 7nα), E=140-176 MeV; measured residuals production σ vs compound nucleus excitation; deduced dinuclear system evolution related features.


1997AN08      Nucl.Phys. A620, 229 (1997)

A.N.Andreyev, D.D.Bogdanov, V.I.Chepigin, A.P.Kabachenko, O.N.Malyshev, Yu.A.Muzychka, Yu.Ts.Oganessian, A.G.Popeko, B.I.Pustylnik, R.N.Sagaidak, G.M.Ter-Akopian, A.V.Yeremin

Decay Widths of Highly Excited Ra Compound Nuclei

NUCLEAR REACTIONS 194,196,198Pt(22Ne, xn), (22Ne, xnp), (22Ne, xnα), E=100-200 MeV; measured evaporation residue σ(E). 216,218,220Ra deduced fission barriers, decay widths. Enriched targets, kinematic separator, surface-barrier detectors, measurements of α activity.

doi: 10.1016/S0375-9474(97)00147-4
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0241.


1997AN20      Nucl.Phys. A626, 857 (1997)

A.N.Andreyev, D.D.Bogdanov, V.I.Chepigin, A.P.Kabachenko, O.N.Malyshev, Yu.Ts.Oganessian, A.G.Popeko, J.Rohac, R.N.Sagaidak, G.M.Ter-Akopian, A.V.Yeremin, S.Saro, M.Veselsky

Statistical Model and Cross Sections for the Evaporation Residues Formed in the Reaction 22Ne + 190Os at the 22Ne Projectile Bombarding Energy of 6.0-10.0 MeV/Nucleon

NUCLEAR REACTIONS 190Os(22Ne, xn), (22Ne, xnp), (22Ne, xnα), E=130-220 MeV; measured evaporation residue σ(E); deduced fission barriers. Kinematic separator, silicon detectors, α-activity measurements.

doi: 10.1016/S0375-9474(97)00477-6
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0233.


1997YE07      Nucl.Instrum.Methods Phys.Res. B126, 329 (1997)

A.V.Yeremin, D.D.Bogdanov, V.I.Chepigin, V.A.Gorshkov, A.P.Kabachenko, O.N.Malyshev, A.G.Popeko, R.N.Sagaidak, G.M.Ter-Akopian, A.Yu.Lavrentjev

The electrostatic separator VASSILISSA Performance and experimental results

NUCLEAR REACTIONS 232Th(20Ne, 5n), (20Ne, 6n), (26Mg, 4n), (26Mg, 5n), (26Mg, 6n), (27Al, 5n), (27Al, 6n), (31P, 5n), 236U(22Ne, 4n), (22Ne, 5n), (22Ne, 6n), (27Al, 5n), (27Al, 6n), 238U(22Ne, 6n), (22Ne, 8n), E* ≈ 45-70 MeV; measured σ.

doi: 10.1016/S0168-583X(96)01002-6
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0738.


1995AN03      Nucl.Phys. A583, 153c (1995)

A.N.Andreyev, D.D.Bogdanov, V.I.Chepigin, A.P.Kabachenko, O.N.Malyshev, Yu.A.Muzychka, Yu.Ts.Oganessian, A.G.Popeko, B.I.Pustylnik, J.Rohac, R.N.Sagaidak, A.V.Taranenko, G.M.Ter-Akopian, A.V.Yeremin

Long Fission Time of Highly Excited Radium Compound Nuclei Ending in the Formation of Evaporation Residues

NUCLEAR REACTIONS, ICPND 194,196,198Pt(22Ne, xn), E not given; measured σ(E) for residual production for 4 ≤ x ≤ 12. 218,220,216Ra deduced relative neutron width mean values.

doi: 10.1016/0375-9474(94)00651-3
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1995AN04      Nucl.Phys. A583, 169c (1995)

A.N.Andreyev, D.D.Bogdanov, V.I.Chepigin, A.P.Kabachenko, O.N.Malyshev, Yu.A.Muzychka, A.G.Popeko, B.I.Pustylnik, R.N.Sagaidak, G.M.Ter-Akopian, A.V.Yeremin

Formation Cross Sections of Neutron Deficient Polonium Isotopes in Asymmetric and Symmetrical Heavy Ion Fusion

NUCLEAR REACTIONS, ICPND 175Lu(27Al, xn), E=178 MeV; 169Tm(31P, xn), E=220 MeV; measured total reaction σ vs 200Po excitation; deduced 199,198,197,196,195,194,193,192,191,190Po isotopes production σ. Compared with other reactions data.

doi: 10.1016/0375-9474(94)00655-7
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1995AN23      Yad.Fiz. 58, No 5, 791 (1995); Phys.Atomic Nuclei 58, 730 (1995)

A.N.Andreev, D.D.Bogdanov, A.V.Eremin, A.P.Kabachenko, O.N.Malyshev, Yu.A.Muzychka, B.I.Pustylnik, R.N.Sagaidak, G.M.Ter-Akopyan, V.I.Chepigin

Formation of Po Isotopes in the Reactions 27Al + 175Lu and 31P + 169Tm

NUCLEAR REACTIONS, ICPND 175Lu(27Al, xnyp)199Po/198Po/197Po/196Po/195Po/193Po/192Po, E=180, 250 MeV; 169Tm(31P, xnyp)199Po/198Po/197Po/196Po/195Po/193Po/192Po, E=178, 200 MeV; measured residual production σ(E); deduced projectile mass independence of the evaporation channel characteristics, residuals fission barrier characteristics. Statistical approach.


1995AN37      Nucl.Instrum.Methods Phys.Res. A364, 342 (1995)

A.N.Andreyev, V.V.Bashevoy, D.D.Bogdanov, V.I.Chepigin, A.P.Kabachenko, O.N.Malyshev, J.Rohac, S.Saro, A.V.Taranenko, G.M.Ter-Akopian, A.V.Yeremin

Large Area High-Efficiency Time-of-Flight System for Detection of Low Energy Heavy Evaporation Residues at the Electrostatic Separator VASSILISSA

RADIOACTIVITY 226Ra(α); measured α spectra, tof; deduced large area high-efficiency tof system characteristics.

NUCLEAR REACTIONS 182W(22Ne, X), 164Dy(40Ar, X), E not given; measured projectilelike fragment tof spectra vs recoil energy; deduced large area high-efficiencey tof system characteristics.

doi: 10.1016/0168-9002(95)00355-X
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1994AN01      Nucl.Phys. A568, 323 (1994)

A.N.Andreyev, D.D.Bogdanov, V.I.Chepigin, A.P.Kabachenko, O.N.Malyshev, Yu.A.Muzychka, B.I.Pustylnik, G.M.Ter-Akopian, A.V.Yeremin

Shell Effects and Cross Sections of Formation of Neutron-Deficient Isotopes of Ac, Ra and Fr in 20Ne + 197Au Reaction

NUCLEAR REACTIONS, ICPND 197Au(20Ne, xn), (20Ne, xnp), (20Ne, xnα), E=120-190 MeV; measured σ(E); deduced production σ for Ac, 204-206Ra, 206-209Fr isotopes. 208Ac deduced possible evidence for isomer. Measurements of α-activity.

doi: 10.1016/0375-9474(94)90205-4
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1994AN02      Z.Phys. A347, 225 (1994)

A.N.Andreyev, D.D.Bogdanov, V.I.Chepigin, A.P.Kabachenko, O.N.Malyshev, A.G.Popeko, R.N.Sagaidak, G.M.Ter-Akopian, M.Veselsky, A.V.Yeremin

New Nuclides 228,229Pu

NUCLEAR REACTIONS, ICPND 207Pb(26Mg, 4n), E=5.42 MeV/nucleon; 208Pb(24Mg, 4n), E=5.5 MeV/nucleon; 208Pb(26Mg, 5n), E=5.58 MeV/nucleon; measured Eα, Iα, αα-correlation; deduced residuals production σ.

RADIOACTIVITY 228,229Pu(α) [from 208Pb(24Mg, 4n), E=5.5 MeV/nucleon; 207Pb(26Mg, 4n), E=5.42 MeV/nucleon; 208Pb(26Mg, 5n), E=5.58 MeV/nucleon]; measured Eα, Iα, αα-correlation; deduced Q(α).


1994YE08      Nucl.Instrum.Methods Phys.Res. A350, 608 (1994)

A.V.Yeremin, A.N.Andreyev, D.D.Bogdanov, G.M.Ter-Akopian, V.I.Chepigin, V.A.Gorshkov, A.P.Kabachenko, O.N.Malyshev, A.G.Popeko, R.N.Sagaidak, S.Sharo, E.N.Voronkov, A.V.Taranenko, A.Yu.Lavrentjev

The Kinematic Separator VASSILISSA Performance and Experimental Results

NUCLEAR REACTIONS, ICPND 151,153Eu(40Ca, 3n), 207,208Pb, 197Au(40Ca, 4n), 153Eu(40Ca, 5n), 165Ho, 159Tb(40Ar, xn), 169Tm(31P, xn), 159Tb(40Ca, xn), 181Ta(24Mg, xn), (26Mg, 2n), 194,198,196Pt, 205Tl, 208Pb, 209Bi, 197Au(22Ne, xn), 197Au, 175Lu(27Al, xn), E not given; measured residual production σ for x=3-10. 238,236U(22Ne, xn), 232Th(26Mg, xn), (27Al, xn), (31P, xn), 236U(27Al, xn), E not given; measured residual production σ. 208Pb(26Mg, xn), E=145 MeV; 236U(22Ne, xn), E=124 MeV; 232Th(26Mg, xn), E=141 MeV; measured Eα, Iα.

NUCLEAR STRUCTURE 218,219,223,224,225,226U, 225,226,227Np, 228,229,230Pu; compiled Eα, Iα, T1/2 (in some cases) data.

doi: 10.1016/0168-9002(94)91265-3
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1993AN07      Z.Phys. A345, 247 (1993)

A.N.Andreyev, D.D.Bogdanov, V.I.Chepigin, A.P.Kabachenko, O.N.Malyshev, R.N.Sagaidak, G.M.Ter-Akopian, M.Veselsky, A.V.Yeremin

The New Isotope 219U

NUCLEAR REACTIONS 197Au(27Al, X), E=5.5 MeV/nucleon; measured Eα, Iα, αα-correlation; deduced evidence for 219U.

RADIOACTIVITY 219U(α) [from 197Au(27Al, X), E=5.5 MeV/nucleon]; measured Eα, Iα, αα-correlation; deduced T1/2, Qα.


1993AN10      Z.Phys. A345, 389 (1993)

A.N.Andreyev, D.D.Bogdanov, V.I.Chepigin, A.P.Kabachenko, O.N.Malyshev, R.N.Sagaidak, L.I.Salamatin, G.M.Ter-Akopian, A.V.Yeremin

Cross Sections of 102 Element Isotopes Formation in the Reactions of 22Ne + 236U and 26Mg + 232Th

NUCLEAR REACTIONS 236U(22Ne, 4n), (22Ne, 5n), (22Ne, 6n), E=112-132 MeV; 232Th(26Mg, 4n), (26Mg, 5n), (26Mg, 6n), E=136-148 MeV; measured Eα, Iα; deduced residuals production σ(E). Statistical model comparison.


1993TE01      Nucl.Phys. A553, 735c (1993)

G.M.Ter-Akopian, A.N.Andreyev, D.D.Bogdanov, V.I.Chepigin, A.P.Kabachenko, O.N.Malyshev, Yu.A.Muzychka, G.S.Popeko, B.I.Pustylnik, S.Saro, R.N.Sagaidak, M.Veselsky, A.V.Yeremin

Production of Z ≥ 82 Heavy Ion Fusion Evaporation Residues (ER) and Fissility of Heavy Nuclei

NUCLEAR REACTIONS 197Au(20Ne, xn), (20Ne, xnp), E not given; analyzed Z ≥ 82 fusion evaporation residue production σ(E) data; deduced shell effect fading, fission barrier macroscopic component features. Other data included.

doi: 10.1016/0375-9474(93)90690-Y
Citations: PlumX Metrics


1992AN04      Z.Phys. A342, 123 (1992)

A.N.Andreev, D.D.Bogdanov, V.I.Chepigin, A.P.Kabachenko, O.N.Malyshev, R.N.Sagaidak, G.M.Ter-Akopian, A.V.Yeremin

The New Isotope 218U

NUCLEAR REACTIONS 197Au(27Al, X), E=5.96 MeV/nucleon; measured Eα, Iα, αα-correlations; deduced evidence for 218U, production σ. In-flight evaporation residue separation.

RADIOACTIVITY 218U(α) [from 197Au(27Al, X), E=5.96 MeV/nucleon]; measured Eα, Iα, αα-correlations; deduced α-decay energy, T1/2.


1992AN16      Z.Phys. A344, 225 (1992)

A.N.Andreyev, D.D.Bogdanov, V.I.Chepigin, A.P.Kabachenko, O.N.Malyshev, Yu.Ts.Oganessian, R.N.Sagaidak, G.M.Ter-Akopian, A.V.Yeremin, F.P.Hessberger, S.Hofmann, V.Ninov, M.Florek, S.Saro, M.Veselsky

Investigation of the Fusion Reaction 27Al + 236U → 263105 at Excitation Energies of 57 MeV and 65 MeV

NUCLEAR REACTIONS, ICPND 236U(27Al, 5n), (27Al, 6n), E ≈ 154, 163 MeV; measured αα(θ); deduced residue production σ. Evaporation residue implantation in Si detector.

RADIOACTIVITY 257,258Db(α) [from 236U(27Al, 5n), (27Al, 6n), E ≈ 154, 163 MeV]; measured αα(θ).


1991AN10      Z.Phys. A338, 363 (1991)

A.N.Andreev, D.D.Bogdanov, V.I.Chepigin, A.P.Kabachenko, O.N.Malyshev, G.M.Ter-Akopian, A.V.Yeremin

The New Isotopes 223,224U

NUCLEAR REACTIONS 208Pb(20Ne, xn), E=100-125 MeV; measured αα(t), Eα; deduced evidence for 223,224U.

RADIOACTIVITY 223,224,225,226U [from 208Pb(20Ne, xn), E=100-125 MeV]; measured αα(t), Eα; deduced T1/2.


1991AN13      Yad.Fiz. 53, 895 (1991); Sov.J.Nucl.Phys. 53, 554 (1991)

A.N.Andreev, D.D.Bogdanov, A.V.Eremin, A.P.Kabachenko, O.N.Malyshev, G.M.Ter-Akopyan, V.I.Chepigin

Production Cross Sections and Decay Properties of New α Emitters: 223,224U

RADIOACTIVITY 223,224U(α) [from 208Pb(20Ne, xn), E=101-125 MeV]; measured Eα, Iα, T1/2.

NUCLEAR REACTIONS 208Pb(20Ne, xn), (20Ne, xnα), E=101-125 MeV; measured α-spectra, absolute σ(E) for x=2, 3, 4, 5; deduced evidence for 223,224U.


1990AN22      Z.Phys. A337, 231 (1990)

A.N.Andreev, D.D.Bogdanov, V.I.Chepigin, A.P.Kabachenko, S.Sharo, G.M.Ter-Akopian, A.V.Eremin, O.N.Malyshev

The New Nuclide 230Pu

NUCLEAR REACTIONS, ICPND 208Pb(26Mg, X)230Pu, E=135 MeV; measured residual production σ.

RADIOACTIVITY 226U [from α-decay of products from 208Pb(26Mg, X), E=135 MeV]; measured T1/2.


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