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Search: Author = Y.V.Pyatkov

Found 33 matches.

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2023KA27      Bull.Rus.Acad.Sci.Phys. 87, 1238 (2023)

D.V.Kamanin, Yu.V.Pyatkov, A.N.Solodov, A.O.Strekalovsky, V.E.Zhuchko, Z.I.Goryainova, V.Malaza, O.V.Strekalovsky, E.A.Kuznetsova

Observation of the Shape Isomer States in Fission Fragments from (γ, f) Reactions

NUCLEAR REACTIONS 235,238U(γ, F), E not given; measured reaction products, TOF; deduced mass yields, missing masses, mass correlation distribution for the fission fragments, the shape isomer state T1/2 lower limit. The M-T-25 microtron at the Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, using VEGA (V-E Guide based Array) setup.

doi: 10.3103/S1062873823702866
Citations: PlumX Metrics

2023PY01      Phys.Atomic Nuclei 86, 450 (2023)

Yu.V.Pyatkov, D.V.Kamanin, A.O.Strekalovsky, Z.I.Goryainova, E.A.Kuznetsova, A.N.Solodov, O.V.Strekalovsky, V.E.Zhuchko, A.O.Zhukova

Observation of a New Effect in the Ternary Fission of 252Cf(sf) with the Emission of an Alpha Particle

RADIOACTIVITY 252Cf(SF); measured decay products, Eα, Iα; deduced light fragment yields, prescission configuration, shape isomer state. The COMETA (COrrelation M-E-T Array) setup.

doi: 10.1134/S1063778823040300
Citations: PlumX Metrics

2021OS04      Phys.Part. and Nucl.Lett. 18, 559 (2021)

G.A.Ososkov, Yu.V.Pyatkov, M.O.Rudenko

Simulation and Analysis of the Properties of Linear Structures in the Mass Distribution of Nuclear Reaction Products by Machine Learning Methods

doi: 10.1134/S1547477121050083
Citations: PlumX Metrics

2020ST08      Bull.Rus.Acad.Sci.Phys. 84, 469 (2020)

A.O.Strekalovsky, D.V.Kamanin, Yu.V.Pyatkov, Z.I.Goryainova, V.E.Zhuchko, A.A.Alexandrov, I.A.Alexandrova, R.Korsten, V.Malaza, E.A.Kuznetsova, O.V.Strekalovsky

Fission Fragments Binary Brake-Up at Crossing of the Carbon Foil

doi: 10.3103/S1062873820040309
Citations: PlumX Metrics

2017BE05      Eur.Phys.J. A 53, 32 (2017)

O.Beliuskina, A.O.Strekalovsky, A.A.Aleksandrov, I.A.Aleksandrova, H.M.Devaraja, C.Heinz, S.Heinz, S.Hofmann, S.Ilich, N.Imai, D.V.Kamanin, M.Kis, G.N.Knyazheva, C.Kozhuharov, E.A.Kuznetsova, J.Maurer, G.V.Mishinsky, M.Pomorski, Yu.V.Pyatkov, O.V.Strekalovsky, M.Trager, V.E.Zhuchko

Pulse-height defect in single-crystal CVD diamond detectors

doi: 10.1140/epja/i2017-12223-8
Citations: PlumX Metrics

2017PY01      Phys.Rev. C 96, 064606 (2017)

Yu.V.Pyatkov, D.V.Kamanin, A.A.Alexandrov, I.A.Alexandrova, Z.I.Goryainova, V.Malaza, N.Mkaza, E.A.Kuznetsova, A.O.Strekalovsky, O.V.Strekalovsky, V.E.Zhuchko

Examination of evidence for collinear cluster tri-partition

RADIOACTIVITY 252Cf(SF); measured mass-mass distribution of fission fragments, velocities and energies of the ternary events, neutron multiplicity; deduced masses, energies and yields of fragments from true ternary fission. Results explained by collinear cluster tri-partition (CCT), giving rise to the Ni bump.

doi: 10.1103/PhysRevC.96.064606
Citations: PlumX Metrics

2013VO03      Acta Phys.Pol. B44, 447 (2013)

W.von Oertzen, Y.V.Pyatkov, D.Kamanin

True Ternary Fission, Collinear Cluster Tri (CCT) Partition of 252Cf

RADIOACTIVITY 252Cf(SF); measured ternary fission fragments. 4He, 10Be, 14C, 34Si, 48,50Ca, 60Cr, 82Ge; deduced fragment mass distributions.

NUCLEAR REACTIONS 235U(n, F), E not given; measured reaction products; deduced fission product mass distribution.

doi: 10.5506/APhysPolB.44.447
Citations: PlumX Metrics

2012PY01      Eur.Phys.J. A 48, 94 (2012)

Yu.V.Pyatkov, D.V.Kamanin, W.von Oertzen, A.A.Alexandrov, I.A.Alexandrova, O.V.Falomkina, N.Jacobs, N.A.Kondratjev, E.A.Kuznetsova, Yu.E.Lavrova, V.Malaza, Yu.V.Ryabov, O.V.Strekalovsky, A.N.Tyukavkin, V.E.Zhuchko

The collinear cluster tri-partition (CCT) of 252Cf (sf): New aspects from neutron gated data

RADIOACTIVITY 252Cf(SF); measured En, In, fission fragments, (fragment)n-coin; deduced neutron multiplicity, fission fragment mass distribution, CCT (collinear cluster tri-partition ).

doi: 10.1140/epja/i2012-12094-5
Citations: PlumX Metrics

2011PY01      Int.J.Mod.Phys. E20, 1008 (2011)

Yu.V.Pyatkov, D.V.Kamanin, A.A.Alexandrov, I.A.Alexandrova, N.A.Kondratyev, E.A.Kuznetsova, N.Jacobs, V.Malaza, D.Pham Minh, V.E.Zhuchko

Presumable scenario of one of the collinear cluster tri-partition modes

doi: 10.1142/S0218301311019155
Citations: PlumX Metrics

2010PY01      Phys.Atomic Nuclei 73, 1309 (2010); Yad.Fiz. 73, 1350 (2010)

Yu.V.Pyatkov, D.V.Kamanin, Yu.N.Kopach, A.A.Alexandrov, I.A.Alexandrova, S.B.Borzakov, Yu.N.Voronov, V.E.Zhuchko, E.A.Kuznetsova, Ts.Panteleev, A.N.Tyukavkin

Collinear cluster tripartition channel in the reaction 235U(nth, f)

NUCLEAR REACTIONS 235U(n, F), E=thermal; measured reaction products, TOF; deduced charge spectrum and mass-mass distribution of fission fragments, many body ternary decay.

doi: 10.1134/S1063778810080041
Citations: PlumX Metrics

2010PY02      Eur.Phys.J. A 45, 29 (2010)

Yu.V.Pyatkov, D.V.Kamanin, W.von Oertzen, A.A.Alexandrov, I.A.Alexandrova, O.V.Falomkina, N.A.Kondratjev, Yu.N.Kopatch, E.A.Kuznetsova, Yu.E.Lavrova, A.N.Tyukavkin, W.Trzaska, V.E.Zhuhcko

Collinear cluster tri-partition of 252Cf (sf) and in the 235U (nth, f) reaction

RADIOACTIVITY 252Cf(SF); measured E(fragment), I(fragment, θ), (fragment)(fragment)-coin from fission; deduced fission fragment mass correlations.

NUCLEAR REACTIONS 235U(n, F), E=thermal; measured E(fragment), I(fragment, θ), (fragment)(fragment)-coin, fission fragment yields; deduced fission fragment mass correlations, ternary cluster decay.

doi: 10.1140/epja/i2010-10988-8
Citations: PlumX Metrics

2008KA45      Int.J.Mod.Phys. E17, 2250 (2008)

D.V.Kamanin, Yu.V.Pyatkov, A.N.Tyukavkin, Yu.N.Kopatch

Experimental evidences of clustering in low excited heavy nuclear systems

doi: 10.1142/S0218301308011434
Citations: PlumX Metrics

2004PY01      Yad.Fiz. 67, 1754 (2004); Phys.Atomic Nuclei 67, 1726 (2004)

Yu.V.Pyatkov, V.V.Pashkevich, W.H.Trzaska, G.G.Adamian, N.V.Antonenko, D.V.Kamanin, V.A.Maslov, V.G.Tishchenko, A.V.Unzhakova

Nontrivial Manifestation of Clustering in Fission of Heavy Nuclei at Low and Middle Excitations

NUCLEAR REACTIONS 233U(n, F), E=thermal; analyzed fission fragments total kinetic energy, charge, and mass distributions; deduced fine structure, cluster effects, related fission mechanism features.

doi: 10.1134/1.1806914
Citations: PlumX Metrics

2003KA48      Yad.Fiz. 66, 1703 (2003); Phys.Atomic Nuclei 66, 1655 (2003)

D.V.Kamanin, Yu.V.Pyatkov, E.A.Sokol, S.V.Mitrofanov, S.R.Yamaletdinov, V.G.Tishchenko, A.N.Tyukavkin, B.V.Florko, E.A.Kuznetsova, O.Yu.Gapienko

Neutron Channel of the FOBOS Spectrometer for the Study of Spontaneous Fission

doi: 10.1134/1.1611577
Citations: PlumX Metrics

2003PY01      Yad.Fiz. 66, 1679 (2003); Phys.Atomic Nuclei 66, 1631 (2003)

Yu.V.Pyatkov, D.V.Kamanin, A.A.Alexandrov, I.A.Alexandrova, S.V.Khlebnikov, S.V.Mitrofanov, V.V.Pashkevich, Yu.E.Penionzhkevich, Yu.V.Ryabov, E.A.Sokol, V.G.Tishchenko, A.N.Tyukavkin, A.V.Unzhakova, S.R.Yamaletdinov

New Indications of Collinear Tripartition in 252Cf(sf) Studied at the Modified FOBOS Setup

RADIOACTIVITY 252Cf(SF); measured fission fragment energy, charge, and mass distributions, neutron multiplicity; deduced possible collinear tripartition.

doi: 10.1134/1.1611571
Citations: PlumX Metrics

2003RU07      Yad.Fiz. 66, 1500 (2003); Phys.Atomic Nuclei 66, 1454 (2003)

V.A.Rubchenya, A.A.Alexandrov, S.V.Khlebnikov, V.G.Lyapin, V.A.Maslov, Yu.E.Penionzhkevich, G.Prete, Yu.V.Pyatkov, Yu.G.Sobolev, G.P.Tiourin, W.H.Trzaska, D.N.Vakhtin, J.Aysto

Dynamics of Superheavy System 86Kr + 208Pb Reaction

NUCLEAR REACTIONS 208Pb(86Kr, X), E=600 MeV/nucleon; measured fragments kinetic energy and mass distributions, α spectra, pre- and post-scission neutron multiplicity; deduced reaction mechanism features.

doi: 10.1134/1.1601750
Citations: PlumX Metrics

2003TR13      Acta Phys.Hung.N.S. 18, 363 (2003)

W.H.Trzaska, Yu.V.Pyatkov, V.A.Maslov, O.I.Osetrov, Yu.E.Penionzhkevich, V.G.Tishchenko, D.N.Vakhtin

Manifestations of Clustering in Fission of Excited Actinides

NUCLEAR REACTIONS 238U(p, F), E=20, 60 MeV; 238U(d, F), E=65 MeV; analyzed fission fragments mass distributions vs total kinetic energy; deduced fission mechanism features.

doi: 10.1556/APH.18.2003.2-4.43
Citations: PlumX Metrics

2002HE26      Nucl.Phys. A712, 207 (2002)

C.-M.Herbach, D.Hilscher, V.G.Tishchenko, P.Gippner, D.V.Kamanin, W.von Oertzen, H.-G.Ortlepp, Yu.E.Penionzhkevich, Yu.V.Pyatkov, G.Renz, K.D.Schilling, O.V.Strekalovsky, W.Wagner, V.E.Zhuchko

Search for mass-symmetric ternary fission in the reactions 14N(53 AMeV) + 197Au and 232Th

NUCLEAR REACTIONS 197Au, 232Th(14N, X), E=53 MeV/nucleon; measured binary and ternary fission fragment yields following incomplete fusion, fragment velocity correlations; deduced anisotropic contribution, stretched scission configuration. Coulomb trajectory calculations.

doi: 10.1016/S0375-9474(02)01242-3
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetF1284.

2002PY02      Nucl.Instrum.Methods Phys.Res. A488, 381 (2002)

Yu.V.Pyatkov, V.G.Tishchenko, V.V.Pashkevich, V.A.Maslov, D.V.Kamanin, I.V.Kljuev, W.H.Trzaska

Manifestation of Fine Structures in the Fission Fragment Mass-Energy Distribution of the 233U(nth, f) Reaction

NUCLEAR REACTIONS 233U(n, F), E=thermal; analyzed fission fragment mass and kinetic energy distributions; deduced fission modes, collective vibrations.

doi: 10.1016/S0168-9002(02)00441-2
Citations: PlumX Metrics

2001PY01      Eur.Phys.J. A 10, 171 (2001)

Yu.V.Pyatkov, Yu.E.Penionzhkevich, W.H.Trzaska, O.I.Osetrov, A.A.Alexandrov, I.A.Alexandrova, J.Aysto, K.-Th.Brinkmann, S.V.Khlebnikov, V.F.Kushniruk, A.V.Kuznetsov, V.G.Lyapin, V.A.Maslov, M.Mutterer, Z.Radivojevic, V.A.Rubchenya, Yu.G.Sobolev, G.P.Tiourin, D.N.Vakhtin

Peculiarities in Fragment Mass Distribution in the 238U + 40Ar (243 MeV) Reaction

NUCLEAR REACTIONS 238U(40Ar, X), E=243 MeV; measured fragments mass distributions, kinetic energies, neutron spectra; deduced fine structure in mass distribution.

doi: 10.1007/s100500170129
Citations: PlumX Metrics

1999OS03      Bull.Rus.Acad.Sci.Phys. 63, 174 (1999)

O.I.Osetrov, A.A.Aleksandrov, I.D.Alkhazov, J.Aysto, D.N.Vakhtin, J.von Kalben, A.V.Kuznetsov, V.G.Lyapin, M.Mutterer, H.-G.Ortlepp, Yu.E.Penionzhkevich, Yu.V.Pyatkov, V.A.Rubchenya, G.P.Tyurin, W.Trzaska, S.V.Khlebnikov

Multiplicities of α Particles in 58Ni + 112, 118, 124Sn Reactions at ENi = 340 MeV

NUCLEAR REACTIONS 112,118,124Sn(58Ni, F), E=340 MeV; measured σ(Eα, θ), (Fragment)α-coin following fission; deduced α-particles Coulomb barriers, pre- and post-scission multiplicities. Statistical Model Calculations.

1999TR02      Acta Phys.Slovaca 49, 93 (1999)

W.H.Trzaska, J.Aysto, Z.Radivojevic, V.A.Rubchenya, I.D.Alkhazov, S.V.Khlebnikov, A.V.Kuznetsov, A.Evsenin, V.G.Lyapin, O.I.Osetrov, G.P.Tiourin, D.N.Vakhtin, A.A.Alexandrov, Yu.E.Penionzhkevich, Yu.V.Pyatkov, Yu.G.Sobolev, M.Mutterer, J.von Kalben, K.Brinkmann

Particle Emission as a Probe for Dynamics of Fission of Heated Nuclei

NUCLEAR REACTIONS 124Sn(58Ni, X), E=320 MeV; 142Nd(40Ar, X), E=243 MeV; 162Er(20Ne, X), E=160 MeV; measured neutron, proton, α multiplicities; deduced fusion-fission reaction mechanism features. 238U(p, F), E=20, 35, 50, 60 MeV; measured fission fragment yields, neutron multiplicity vs fragment mass.

1999VA15      Bull.Rus.Acad.Sci.Phys. 63, 177 (1999)

D.N.Vakhtin, A.A.Aleksandrov, I.D.Alkhazov, J.Aysto, A.V.Kuznetsov, V.G.Lyapin, O.I.Osetrov, H.-G.Ortlepp, Yu.E.Penionzhkevich, Yu.V.Pyatkov, V.A.Rubchenya, G.P.Tyurin, S.V.Khlebnikov, W.Trzaska

Neutron Emission in the 40Ar + 180Hf Reaction at Elab = 180, 190, 216, and 249 MeV

NUCLEAR REACTIONS 180Hf(40Ar, F), E=180-249 MeV; measured σ(En, θ), (fragment)n-coin following fission. Deduced nuclear temperatures and pre- and post-scission multiplicities. Statistical Model Calculations.

1998RU05      Phys.Rev. C58, 1587 (1998)

V.A.Rubchenya, A.V.Kuznetsov, W.H.Trzaska, D.N.Vakhtin, A.A.Alexandrov, I.D.Alkhazov, J.Aysto, S.V.Khlebnikov, V.G.Lyapin, O.I.Osetrov, Yu. E.Penionzhkevich, Yu.V.Pyatkov, G.P.Tiourin

Fission Time Scale and Viscosity for Compound Nucleus 220Th Formed in Reaction 40Ar + 180Hf at Elab =180, 190, 216, and 249 MeV

NUCLEAR REACTIONS 180Hf(40Ar, F), E=180, 190, 216, 249 MeV; measured neutron spectra, (fragment)(neutron)-coin, fragment mass, energy distributions; deduced pre-, postscission neutron multiplicities. Time-dependent statistical model analysis. Time-of-flight technique.

doi: 10.1103/PhysRevC.58.1587
Citations: PlumX Metrics

1998TR07      Bull.Rus.Acad.Sci.Phys. 62, 830 (1998)

W.Trzaska, A.A.Aleksandrov, I.D.Alkhazov, J.Aysto, D.N.Vakhtin, A.V.Kuznetsov, V.G.Lyapin, V.Makarenko, M.Mutterer, H.-G.Ortlepp, O.L.Osetrov, Yu.E.Penionzhkevich, Yu.V.Pyatkov, V.A.Rubchenya, G.P.Tyurin, S.V.Khlebnikov

Nuclear Fusion-Fission Reaction Dynamics at HENDES

1997PY01      Nucl.Phys. A624, 140 (1997)

Yu.V.Pyatkov, V.V.Pashkevich, Yu.E.Penionzhkevich, V.G.Tishchenko, A.V.Unzhakova, H.-G.Ortlepp, P.Gippner, C.-M.Herbach, W.Wagner

Manifestation of Clustering in the 252Cf(sf) and 249Cd(n(th), f) Reactions

RADIOACTIVITY 252Cf(SF); measured fission fragments mass, energy distributions; deduced clustering role in fission modes. 4π spectrometer.

NUCLEAR REACTIONS 249Cf(n, F), E=thermal; measured fission fragments mass, energy distributions; deduced clustering role in fission modes. 4π spectrometer.

doi: 10.1016/S0375-9474(97)00417-X
Citations: PlumX Metrics

1997TR06      Acta Phys.Pol. B28, 443 (1997)

W.H.Trzaska, V.A.Rubchenya, A.A.Alexandrov, I.D.Alkhazov, J.Aysto, J.von Kalben, S.V.Khlebnikov, A.V.Kuznetsov, V.G.Lyapin, V.E.Makarenko, I.Moltchanov, M.Mutterer, O.I.Osetrov, H.-G.Ortlepp, G.Otroshchenko, Yu.E.Penionzhkevich, Yu.V.Pyatkov, G.P.Tiourin, D.N.Vakhtin

Research on Fission Dynamics at JYFL using HENDES - High Efficiency Neutron Detection System

1996PY01      Nucl.Phys. A611, 355 (1996)

Yu.V.Pyatkov, G.G.Adamian, N.V.Antonenko, V.G.Tishchenko

Cluster Approach to Description of Fission Modes

NUCLEAR STRUCTURE 236U; calculated potential energy vs system half-length, fissioning nucleus.

NUCLEAR REACTIONS 233U(n, F), E=thermal; calculated total kinetic energy-mass distribution fine structure for fission fragments. Bicluster mechanism of fission mode formation.

doi: 10.1016/S0375-9474(96)00389-2
Citations: PlumX Metrics

1996PY02      Bull.Rus.Acad.Sci.Phys. 60, 1691 (1996)

Yu.V.Pyatkov, A.V.Unzhakova, V.V.Pashkevich, V.G.Tishchenko

Shape of 250,252Cf Nuclei in the Course of Fission from a Viewpoint of Geometrical Cluster Structure

RADIOACTIVITY 250,252Cf(SF); calculated potential energy, deformation during fission; deduced clustering features. Strutinsky method.

1994AL44      Yad.Fiz. 57, No 12, 2137 (1994); Phys.Atomic Nuclei 57, 2057 (1994)

A.A.Aleksandrov, I.A.Aleksandrova, S.L.Podshibyakin, Yu.V.Pyatkov, A.I.Slyusarenko, A.N.Shemetov, R.A.Shekhmametev

Mass-Energy Spectra of Fission Fragments in the Reaction 242mAm(n(th), f)

NUCLEAR REACTIONS 242Am(n, F), E=thermal; measured fission fragment mass, energy spectra; deduced agreement with radiochemical data. Tof technique, target in isomeric state.

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset41496.

1994PY01      Yad.Fiz. 57, No 7, 1182 (1994); Phys.Atomic Nuclei 57, 1116 (1994)

Yu.V.Pyatkov, R.A.Shekhmametev

A Cluster Concept of the Multivalley Model of Fission

NUCLEAR REACTIONS 235U(n, F), E=thermal; analyzed fission fragments isotopic distribution dispersion. 249Cf(n, F), E=thermal; analyzed fission fragment mass yields. Cluster concept of multi-valley fission model.

RADIOACTIVITY 252Cf(SF); analyzed fission fragment mass yields. Cluster concept of multi-valley fission model.

1992AL08      Nucl.Instrum.Methods Phys.Res. A312, 542 (1992)

A.A.Alexandrov, I.A.Alexandrova, S.L.Podshibyakin, Yu.V.Pyatkov, A.I.Slyusarenko, A.N.Shemetov, V.L.Gaishan, V.I.Kogan, V.P.Pikul

Study of the Surface-Barrier Semiconductor Detector Response to the Fission Fragments in Channeling Mode

NUCLEAR REACTIONS 239Pu(n, F), E=thermal; measured fission fragment spectra, mass, charge, energy separation; deduced detector mass, energy response. Surface-barrier semi-conductor detector.

doi: 10.1016/0168-9002(92)90202-F
Citations: PlumX Metrics

1991AL21      Nucl.Instrum.Methods Phys.Res. A303, 323 (1991)

A.A.Alexandrov, I.A.Alexandrova, A.V.Ermolenko, Yu.A.Korjuk, D.S.Nikulin, Yu.F.Pevchev, S.L.Podshibyakin, Yu.V.Pyatkov, S.I.Sitnikov, A.I.Slyusarenko, A.N.Shemetov, R.A.Shehmametiev, N.N.Demidovich

A Time-of-Flight Spectrometer for Unslowed Fission Fragments

NUCLEAR REACTIONS 235U(n, F), E=thermal; measured fission fragment mass spectra, fragment energy vs mass. Unslowed fission fragments, one-armed tof spectrometer.

doi: 10.1016/0168-9002(91)90798-U
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset41496.

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