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NSR database version of May 10, 2024.

Search: Author = I.N.Izosimov

Found 55 matches.

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2024MU02      J.Radioanal.Nucl.Chem. 333, 1559 (2024)

R.S.Mukhin, A.V.Isaev, A.V.Andreev, M.L.Chelnokov, V.I.Chepigin, H.M.Devaraja, 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

Analysis of the shape of multiplicity distributions of prompt neutrons emitted in spontaneous fission

RADIOACTIVITY 253,254,255,256,257,258,259,260,261,262Rf, 252,253,254,255,256,257,258,259,260,261,262Lr, 249,250,251,252,253,254,255,256,257,258,259,260,261No, 245,246,247,248,249,250,251,252,253,254,255,256,257,258,259Md, 243,244,245,246,247,248,249,250,251,252,253,254,255,256,257,258,259Fm(SF); analyzed available data; deduced the prompt neutron multiplicity distribution (PNMD) emitted is the spontaneous fission (SF), shape of the PNMD helps to achieve the information according the dynamic of the SF.

doi: 10.1007/s10967-023-09164-0
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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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2023EF01      Phys.Atomic Nuclei 86, 333 (2023)

A.D.Efimov, I.N.Izosimov

Peculiarities of Rotational Bands in Heavy and Superheavy Nuclei: Description of Yrast-Band States in 248Cm

NUCLEAR STRUCTURE 248Cm; calculated energy levels, J, π, B(E2), yrast bands using the microscopic version of the IBM1, with the elementary modes and effective factorized interaction on the basis of the spherical one-particle basis.

doi: 10.1134/S106377882304018X
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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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Data from this article have been entered in the XUNDL database. For more information, click here.


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.


2021EF01      Phys.Atomic Nuclei 84, 408 (2021)

A.D.Efimov, I.N.Izosimov

Description of Yrast-Band States in 156Dy

NUCLEAR STRUCTURE 156Dy; calculated energy levels, J, π, yrast bands using an extended microscopic version of the interacting-boson model (IBM1).

doi: 10.1134/S1063778821040116
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2021EF02      Phys.Atomic Nuclei 84, 660 (2021)

A.D.Efimov, I.N.Izosimov

High-Spin States of Yrast Bands in Even Pu, Cm, Fm, and No Isotopes

NUCLEAR STRUCTURE 236,238,240,242,244Pu, 242,246,248Cm; calculated energy levels, J, π, B(E2), bands; deduced the interacting-boson model (IBM1) parameters.

doi: 10.1134/S1063778821050057
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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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2019IZ02      Phys.Part. and Nucl.Lett. 16, 754 (2019)

I.N.Izosimov

Quenching of Axial-Vector Weak Interaction Constant in Halo Nuclei

doi: 10.1134/s1547477119060207
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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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2018IZ02      Phys.Part. and Nucl.Lett. 15, 621 (2018)

I.N.Izosimov

Structure of β-decay Strength Function Sβ(E) in Halo Nuclei

RADIOACTIVITY 6He(β-); calculated Gamow-Teller β- decay of nn Borromean halo nucleus 6He. 6Li(γ); calculated IAR M1 γ-decay, resonances in GT β- decay strength function of different halo nuclei (np halo tango, mixed np tango + Borromean halo structure).

doi: 10.1134/S1547477118060092
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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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2017IZ01      Phys.Atomic Nuclei 80, 867 (2017)

I.N.Izosimov

Isospin in halo nuclei: Borromean halo, tango halo, and halo isomers

doi: 10.1134/S1063778817050118
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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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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset41539.


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


2012IZ01      Phys.Atomic Nuclei 75, 1324 (2012); Yad.Fiz. 75, 1400 (2012)

I.N.Izosimov, V.G.Kalinnikov, A.A.Solnyshkin

Resonance structure of strength functions for first-forbidden β+/EC transitions

RADIOACTIVITY 147Tb, 160Ho(β+), (EC); analyzed experimental data; deduced strength function for Gamow-Teller transition. Comparison with available data.

doi: 10.1134/S1063778812110099
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2012IZ02      J.Phys.:Conf.Ser. 381, 012054 (2012)

I.N.Izosimov, V.G.Kalinnikov, A.A.Solnyshkin

Resonance structure of the Gamow-Teller (GT) and first-forbidden (FF) β*/EC decay strength functions

RADIOACTIVITY 147Tb(β+), (EC);160Er(β+), (EC);160m,160gHo(β+), (EC), (IT); measured Eγ, Iγ, γγ(time)-coin using HPGe, Eβ, Iβ using β spectrograph; deduced β strength function for GT and for first-forbidden transitions.

doi: 10.1088/1742-6596/381/1/012054
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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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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset41586.


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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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset41579.


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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2011IZ01      Phys.Part. and Nucl.Lett. 8, 23 (2011)

I.N.Izosimov, V.G.Kalinnikov, A.A.Solnyshkin

Fine structure of the strength function for the β+/EC decay of the 160mHo (5.02 h) isomer

RADIOACTIVITY 160Ho(β+EC); analyzed experimental data. 160Dy; deduced strength function, resonance structure for Gamow-Teller transitions.

doi: 10.1134/S1547477111010043
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2011IZ02      Physics of Part.and Nuclei 42, 963 (2011)

I.N.Izosimov, V.G.Kalinnikov, A.A.Solnyshkin

Fine structure of strength functions for beta decays of atomic nuclei

RADIOACTIVITY 124,126,128,130,132Cd, 133,134,135,136,137,138Sn(β-), 147Tb, 232Am, 240Bk, 244,248Es, 248Md, 232Pu, 240Cm, 244,248Cf, 248Fm(β+), (EC), 240Cm, 244,248Cf, 248Fm, 234Pu(SF); calculated β-delayed fission, β-transition strength functions. Comparison with TAGS experimental data.

doi: 10.1134/S1063779611060049
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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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Data from this article have been entered in the XUNDL database. For more information, click here.


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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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset41539.


2008IZ01      Phys.Part. and Nucl.Lett. 5, 427 (2008)

I.N.Izosimov, V.G.Kalinnikov, A.A.Solnyshkin

Fine structure of the strength function for β+/ EC decay of 160gHo (25.6 min)

RADIOACTIVITY 160Ho(β+), (EC); analyzed β-delayed Eγ, Iγ. Deduced Gamow-Teller strength distribution.

doi: 10.1134/S154747710805004X
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2004IZ02      Yad.Fiz. 67, 1901 (2004); Phys.Atomic Nuclei 67, 1876 (2004)

I.N.Izosimov, A.A.Kazimov, V.G.Kalinnikov, A.A.Solnyshkin, J.Suhonen

Beta-Decay Strength Measurement, Total Beta-Decay Energy Determination, and Decay-Scheme Completeness Testing by Total Absorption γ-ray Spectroscopy

RADIOACTIVITY 147Tb, 156Ho(β+), (EC); measured Eγ, Eβ, βγ-coin; deduced decay strength function. Total absorption spectroscopy, comparison with previous results.

NUCLEAR REACTIONS 239Pu(n, F), E not given; analyzed γ-decay heat vs time.

doi: 10.1134/1.1811194
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2003IZ01      Yad.Fiz. 66, 1684 (2003); Phys.Atomic Nuclei 66, 1636 (2003)

I.N.Izosimov, A.A.Kazimov, V.G.Kalinnikov, A.A.Solnyshkin, J.Suhonen

Applications of the Totals Absorption γ-Ray Spectroscopy for β-Decay Study

RADIOACTIVITY 147Tb, 156Ho(β+), (EC); measured Eγ, Iγ; deduced strength functions, Q(EC). Total absorption spectroscopy, comparisons with model predictions.

doi: 10.1134/1.1611572
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2002IZ01      Part. and Nucl., Lett. 111, 36 (2002)

I.N.Izosimov, A.A.Kazimov, V.G.Kalinnikov, A.A.Solnyshkin

Determination of the Total Energy QEC for 156Ho (T1/2 ∼ 56 min) β+/EC Decay Using the Total Absorption γ-Ray Spectrometer

RADIOACTIVITY 156Ho(β+), (EC) [from Ta(p, X)]; measured Eβ, Eγ, βγ-coin; deduced Q(EC). Total absorption spectrometer.


2000IZ01      Part. and Nucl., Lett. 101, 40 (2000)

I.N.Izosimov, V.G.Kalinnikov, A.A.Solnyshkin, J.Suhonen

Fine Structure of the MT = 1 Gamow-Teller Resonance in 147gTb → 147Gd β+/EC Decay

RADIOACTIVITY 147Tb(β+)(EC) [from Ta(p, X)]; measured Eγ, Iγ, βγ-coin; deduced Gamow-Teller resonance, strength function. Total absorption spectrometer. Comparison with microscopic quasiparticle-phonon model calculations.


1999IZ01      Fiz.Elem.Chastits At.Yadra 30, 321 (1999); Phys.Part.Nucl. 30, 131 (1999)

I.N.Izosimov

Manifestations of Nonstatistical Effects in Nuclei


1998GA35      Bull.Rus.Acad.Sci.Phys. 62, 85 (1998)

Yu.P.Gangrsky, I.N.Izosimov, B.N.Markov

Polarization of Nuclei by Laser Radiation in Beams of Fast Multiply Charged Ions

RADIOACTIVITY 24Na(β-); 22Na(β+), (EC); measured Iγ(θ); deduced nuclear polarization. Polarization of ions with pulsed laser.


1998IZ01      J.Phys.(London) G24, 831 (1998)

I.N.Izosimov, V.G.Kalinnikov, M.Yu.Myakushin, A.A.Rimsky-Korsakov, A.A.Solnyshkin, J.Suhonen, J.Toivanen

Structure of the β+(EC) Decay Strength Function of 147gTb (T1/2 ≈ 1.6 h)

RADIOACTIVITY 147Tb(β+)(EC) [from Ta(p, X)]; measured Eγ, Iγ, βγ-coin; deduced β-decay strength function, log ft. Total absorption spectrometry. Quasiparticle phonon model.

doi: 10.1088/0954-3899/24/4/013
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1997WA04      Z.Phys. A357, 39 (1997)

J.Wawryszczuk, M.B.Yuldashev, K.Ya.Gromov, V.I.Fominykh, Zh.Sereeter, V.G.Kalinnikov, N.Yu.Kotovsky, K.V.Kalyapkin, A.W.Potempa, I.N.Izosimov, M.Yu.Myakushin, A.A.Rimsky-Korsakov, T.M.Muminov

Low-Spin States of 64147Gd83 in the β-Decay of 147gTb

RADIOACTIVITY 147Tb(EC), (β+) [from Ta(p, X), E=660 MeV]; measured Eγ, Iγ, I(ce), γγ-coin; deduced log ft. 147Gd deduced levels, J, π, γ-multipolarity, ICC, configuration.

doi: 10.1007/s002180050211
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1995IZ02      Bull.Rus.Acad.Sci.Phys. 59, 18 (1995)

I.N.Izosimov, I.V.Vorykhalov, A.A.Rimsky-Korsakov

Production and Investigation of Ionized Cluster by Means of Laser Radiation


1994BE49      Nucl.Instrum.Methods Phys.Res. A346, 196 (1994)

R.Beraud, A.Emsallem, A.Astier, R.Bouvier, R.Duffait, Y.Le Coz, S.Morier, A.Wojtasiewicz, Yu.A.Lazarev, I.V.Shirokovsky, I.N.Izosimov, D.Barneoud, J.Genevey, A.Gizon, R.Guglielmini, G.Margotton, J.L.Vieux-Rochaz

Development of a New SARA/IGISOL Technique for the Study of Short-Lived Products from Heavy-Ion-Induced Fusion-Evaporation Reactions

NUCLEAR REACTIONS 116Cd(40Ar, 6n), E not given; measured residual yield vs He pressure. New ion guide chamber.

doi: 10.1016/0168-9002(94)90704-8
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1993IZ01      Bull.Rus.Acad.Sci.Phys. 57, 27 (1993)

I.N.Izosimov

Structure of the Strength Function for β(*)(EC)-Decay and Delayed Fission of Preactinide Nuclei

RADIOACTIVITY 180Tl, 174Au, 188,190Bi(β+), (EC); calculated decay strength function. 180mHg, 174Pt; calculated β-delayed fission probability.


1992IZ01      Bull.Rus.Acad.Sci.Phys. 56, 88 (1992)

I.N.Izosimov

Structure of the β-Decay Strength Function and Delayed Fission of 232Fr

RADIOACTIVITY 232Fr(β-); calculated β-decay strength function, delayed fission probability; deduced 232Ra fission barrier height. Source deformation not included, single quasiparticle Hamiltonian, charge exchange interactions.


1990IZ01      J.Radioanal.Nucl.Chem. 143, 93 (1990)

I.N.Izosimov, L.A.Pleskachevsky, A.A.Rimsky-Korsakov, A.V.Stepanov, S.V.Khlebnikov, S.K.Cherezov, Yu.P.Gangrsky, B.N.Markov

Precise Measurement of the Hyperfine Splitting and Isotope Shift of 8S7/210P9/2 Transition in 241Am and 243Am Atoms

RADIOACTIVITY 241,243Am; measured hfs, isotope shift; deduced μ, quadrupole moment, rms radii differences. Laser fluorescent spectroscopy, high resolution.

doi: 10.1007/BF02117551
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1989GA25      Zh.Eksp.Teor.Fiz. 96, 791 (1989); Sov.Phys.JETP 69, 449 (1989)

Yu.P.Gangrsky, Ch.Gradechny, D.F.Zaretsky, I.N.Izosimov, A.V.Kozlinsky, B.N.Markov, Yu.V.Naumov

Rapid Nuclear Polarization by Pulsed Lasers

RADIOACTIVITY 24Na(β-); 22Na(β+), (EC); measured γ(θ), anisotropy; deduced nuclear polarization. Nuclear orientation by tunable dye laser.


1989IZ01      Izv.Akad.Nauk SSSR, Ser.Fiz. 53, 2451 (1989); Bull.Acad.Sci.USSR, Phys.Ser. 53, No.12, 175 (1989)

I.N.Izosimov

Angular Distribution of γ-Rays in the 58,60,62Ni(p, γ)59,61,63Cu Reaction

NUCLEAR REACTIONS 58,60,62Ni(p, γ), E=5 MeV; measured γ(θ). Statistical model analysis.


1988IZ01      Izv.Akad.Nauk SSSR, Ser.Fiz. 52, 72 (1988); Bull.Acad.Sci.USSR, Phys.Ser. 52, No.1, 67 (1988)

I.N.Izosimov, O.E.Kraft, S.S.Parzhitsky, V.M.Sigalov, I.V.Sizov

Proton Resonances in 60Ni(p, γ)

NUCLEAR REACTIONS 60Ni(p, γ), E=1.931-2.455 MeV; measured γ(θ), γ spectra. 61Cu deduced resonances, J, π, δ.


1988IZ02      Izv.Akad.Nauk SSSR, Ser.Fiz. 52, 77 (1988); Bull.Acad.Sci.USSR, Phys.Ser. 52, No.1, 71 (1988)

I.N.Izosimov, S.S.Parzhitsky, I.V.Sizov

B(E2)-B(M1) Correlation in Ni(p, γ)Cu

NUCLEAR REACTIONS 58,62Ni(p, γ), E ≈ 2.2-2.7 MeV; measured γ(θ). 63,59Cu deduced resonance decay B(λ) correlation.


1986IZ01      Izv.Akad.Nauk SSSR, Ser.Fiz. 50, 1952 (1986); Bull.Acad.Sci.USSR, Phys.Ser. 50, No.10, 80 (1986)

I.N.Izosimov, O.E.Kraft, Yu.V.Naumov, V.M.Sigalov

Strength Function of Proton Resonance in (p, γ) Reaction

NUCLEAR REACTIONS 60,62Ni(p, γ), E=1900-3200 keV; analyzed data; deduced γ-multipolarity, P-resonance strength functions.


1979KL08      Z.Phys. A292, 249 (1979)

H.V.Klapdor, C.-O.Wene, I.N.Izosimov, Y.W.Naumow

Determination of Fission Barrier Heights from β-Delayed Fission

RADIOACTIVITY 232Ac, 232Pu, 240Cm, 244Cf, 248Cf, 248Fm; calculated β strength function. 237Pu, 244Cf, 248Fm deduced β-delayed fission branching ratios.

doi: 10.1007/BF01547469
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1978IZ04      Izv.Akad.Nauk SSSR, Ser.Fiz. 42, 2248 (1978); Bull.Acad.Sci.USSR, Phys.Ser. 42, No.11, 25 (1978)

I.N.Izosimov, Y.V.Naumov

Influence of the Structure of the Strength Function of β Transitions On the Probability of Delayed Fission of 236U and 238U

RADIOACTIVITY 236,238Pa; calculated Gamow-Teller β-decay strength function. 236,238U deduced probability of delayed fission.


1978KL09      Phys.Lett. 78B, 20 (1978)

H.V.Klapdor, C.O.Wene, I.N.Izosimov, Y.W.Naumow

The Structure of the Beta Strength Function in Heavy Nuclei and its Influence on β-Delayed Fission

RADIOACTIVITY 236,238Pa; calculated shape of β strength function.

doi: 10.1016/0370-2693(78)90337-4
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