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NSR database version of April 11, 2024.

Search: Author = M.Rysavy

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2021KO34      Phys.Lett. B 820, 136593 (2021)

A.Kovalik, A.Kh.Inoyatov, L.L.Perevoshchikov, M.Rysavy, D.V.Filosofov, P.Alexa, J.Kvasil

The first experimental evidence for the (M1 + E2) mixed character of the 9.2 keV transition in 227Th

RADIOACTIVITY 227Ac(β-); measured decay products, Eβ, Iβ; deduced internal conversion coefficients, spectroscopic admixture parameter. Comparison with theoretical calculations.

doi: 10.1016/j.physletb.2021.136593
Citations: PlumX Metrics

2021KO39      Eur.Phys.J. A 57, 285 (2021)

A.Kovalik, A.Kh.Inoyatov, L.L.Perevoshchikov, M.Rysavy, D.V.Filosofov, J.A.Dadakhanov

Experimental investigation of the 9.2 and 24.3 keV nuclear transitions in 227Th

RADIOACTIVITY 227Ac(β-); measured decay products, Eβ, Iβ, Eγ, Iγ; deduced electron spectra, subshell conversion electron lines, γ-ray energies, transition multipolarities, subshell internal conversion coefficients (ICC), widths. Comparison with available data.

doi: 10.1140/epja/s10050-021-00577-7
Citations: PlumX Metrics

2019KO17      Eur.Phys.J. A 55, 131 (2019)

A.Kovalik, A.Kh.Inoyatov, L.L.Perevoshchikov, M.Rysavy, D.V.Filosofov, J.A.Dadakhanov

An experimental investigation of the 15.1 keV M1 + E2 nuclear transition in 227Th from the β- decay of 227Ac

RADIOACTIVITY 227Ac(β-); measured decay products, Eβ, Iβ, M-, N- and O-subshell conversion electrons using a high resolution combined electrostatic electron spectrometer at DLNP-JINR-Dubna; deduced precise transition energy and M1+E2 mixing ratio for the 15.1-keV transition in 227Th from its second excited state.

doi: 10.1140/epja/i2019-12812-5
Citations: PlumX Metrics

2016IN02      Eur.Phys.J. A 52, 133 (2016)

A.Kh.Inoyatov, A.Kovalik, D.V.Filosofov, M.Rysavy, L.L.Perevoshchikov, A.Baimukhanova

Improved energy of the 21.5 keV M1 + E2 nuclear transition in 151Eu

NUCLEAR REACTIONS 151Gd(e, γ)151Eu, E=0-50000 eV; measured 21.5 keV M1+E2 transition using internal conversion electron spectroscopy; deduced L1, 2, L3 conversion electron lines energies, δ(E2/M1) multipolarity admixture, parameters; calculated internal conversion coefficients. Compared with other results.

doi: 10.1140/epja/i2016-16133-y
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2015IN02      Eur.Phys.J. A 51, 65 (2015)

A.Kh.Inoyatov, A.Kovalik, D.V.Filosofov, M.Rysavy, L.L.Perevoshchikov, Yu.B.Gurov

First direct high-precision energy determination for the 8.4 and 20.7 keV nuclear transitions in 169Tm

RADIOACTIVITY 169Yb(EC); measured internal conversion electron lines using ICES (Internal Conversion electron spectroscopy) to individual subshells; calculated internal conversion coefficients with and without nuclear structure effect. 169Tm deduced transition energy for 8.4 keV M1+E2, 20.7 keV M1+E2 and 63.1 E1 transitions, internal conversion coefficients for mixed M1+E2 transitions. Compared to other data and calculations.

doi: 10.1140/epja/i2015-15065-4
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2014IN02      Eur.Phys.J. A 50, 59 (2014)

A.Kh.Inoyatov, M.Rysavy, A.Kovalik, D.V.Filosofov, V.S.Zhdanov, Yu.V.Yushkevich

Improved energies for the 5.2 keV M1 and 42.0 keV M2 nuclear transitions in 83Rb

RADIOACTIVITY 83Sr(EC); measured Eβ, Iβ, electron conversion lines using high-resolution electrostatic spectrometer. 83Rb calculated IC coefficients; deduced γ transition energies, multipolarity, natural atomic level widths.

doi: 10.1140/epja/i2014-14059-0
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2011IN01      Eur.Phys.J. A 47, 64 (2011)

A.Kh.Inoyatov, D.V.Filosofov, V.M.Gorozhankin, A.Kovahik, I.Adam, L.L.Perevoshchikov, M.Rysavy

Improved characteristics of the 22.5 keV (M1 + E2) nuclear transition in 149Sm

RADIOACTIVITY 145,146,147,148,149Eu(EC)[from Eu+p at E=500 MeV]; measured E(CE), I(CE), Eγ, Iγ; deduced intensity ratios, transition strengths, γ-multipolarity.

doi: 10.1140/epja/i2011-11064-9
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2002DR09      Nucl.Instrum.Methods Phys.Res. B194, 112 (2002)

O.Dragoun, A.Spalek, A.Kovalik, E.A.Yakushev, M.Rysavy, J.Frana, V.Brabec, A.F.Novgorodov, D.Liljequist

Scattering of 7.3 keV Conversion Electrons from a 57Co Source Covered Gradually by Gold Absorbers of Various Thicknesses

RADIOACTIVITY 57Co(EC); measured E(ce), I(ce), effect of gold absorber.

doi: 10.1016/S0168-583X(02)00688-2
Citations: PlumX Metrics

2002SP06      Nucl.Instrum.Methods Phys.Res. B196, 357 (2002)

A.Spalek, O.Dragoun, A.Kovalik, E.A.Yakushev, M.Rysavy, J.Frana, V.Brabec, A.F.Novgorodov, I.Cserny, J.Toth, D.Varga, L.Kover

Study of the conversion electron and XPS spectra of radioactive 57Co sources

RADIOACTIVITY 57Co(EC); measured conversion electron and X-ray spectra, influence of source backing material.

doi: 10.1016/S0168-583X(02)01340-X
Citations: PlumX Metrics

2001RY04      At.Data Nucl.Data Tables 78, 129 (2001)

M.Rysavy, O.Dragoun

K-Shell, L-Subshell, and Total Internal Conversion Coefficients for Superheavy Elements

NUCLEAR STRUCTURE Z=104-126; calculated internal conversion coefficients.

doi: 10.1006/adnd.2001.0859
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2000DR02      Appl.Radiat.Isot. 52, 387 (2000)

O.Dragoun, A.Spalek, M.Rysavy, A.Kovalik, E.A.Yakushev, V.Brabec, J.Frana, D.Venos

Improved Methods of Measurement and Analysis of Conversion Electron and β-Particle Spectra

RADIOACTIVITY 241Pu(β-); measured Eβ, Iβ; deduced electron scattering effects, source stability features.

doi: 10.1016/S0969-8043(99)00183-9
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2000DR13      J.Phys.(London) G26, 1461 (2000)

O.Dragoun, M.Rysavy, A.Spalek

Internal Conversion Coefficients for Superheavy Elements

NUCLEAR STRUCTURE Z=110-125; calculated ICC.

doi: 10.1088/0954-3899/26/10/302
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2000RY04      J.Phys.(London) G26, 1859 (2000)

M.Rysavy, O.Dragoun

On the Reliability of the Theoretical Internal Conversion Coefficients

NUCLEAR STRUCTURE Fe, Br, I, Cs, Sm, Os, At, Fr; calculated ICC. Dependence on model approximations and parameters discussed.

doi: 10.1088/0954-3899/26/12/309
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1999DR13      J.Phys.(London) G25, 1839 (1999)

O.Dragoun, A.Spalek, M.Rysavy, A.Kovalik, E.A.Yakushev, V.Brabec, A.F.Novgorodov, N.Dragounova, J.Rizek

Search for an Admixture of Heavy Neutrinos in the β-Decay of 241Pu

RADIOACTIVITY 241Pu(β-); measured β spectrum; deduced heavy neutrino admixture upper limits.

doi: 10.1088/0954-3899/25/9/307
Citations: PlumX Metrics

1998KO61      J.Phys.(London) G24, 2247 (1998)

A.Kovalik, E.A.Yakushev, V.M.Gorozhankin, A.F.Novgorodov, M.Rysavy

The Low-Energy Electron Spectrum from the α-Decay of 241Am

RADIOACTIVITY 241Am(α); measured E(ce), I(ce). 237Np deduced transitions energies. Electrostatic spectrometer.

doi: 10.1088/0954-3899/24/12/009
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1998RY06      Prog.Part.Nucl.Phys. 40, 335 (1998)

M.Rysavy, V.Brabec, O.Dragoun, N.Dragounova, A.Spalek, J.Rizek, A.Kovalik, A.F.Novgorodov

Measurements of 241Pu β-Spectrum in Search for Admixture of Massive Neutrinos

RADIOACTIVITY 241Pu(β-); measured β spectra; deduced massive neutrino admixture upper limit.

doi: 10.1016/S0146-6410(98)00043-X
Citations: PlumX Metrics

1997FI13      Meas.Tech.(USSR) 40, 807 (1997)

M.Fiser, V.Brabec, O.Dragoun, N.Dragounova, M.Rysavy, A.Kh.Inoyatov

Use of 99mTc as an energy standard for electron spectroscopy: Promise and limitations

RADIOACTIVITY 99Tc(IT); measured decay products, Eβ, Iβ; deduced ce spectra, radioactive source recommendations.

doi: 10.1007/BF02504441
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1996GO06      J.Phys.(London) G22, 377 (1996)

V.M.Gorozhankin, V.G.Kalinnikov, A.Kovalik, A.A.Solnyshkin, A.F.Novgorodov, N.A.Lebedev, N.Yu.Kotovsky, E.A.Yakushev, M.A.Mahmoud, M.Rysavy

The Problem of the Anomaly in the 158Er Beta Decay Solved

RADIOACTIVITY 158,161Er(β+) [from Ta(p, X), E=640 MeV]; measured I(ce), Eγ, Iγ. 158,161Ho deduced levels, J, π, γ multipolarity in some cases.

doi: 10.1088/0954-3899/22/3/011
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1995DR08      Nucl.Instrum.Methods Phys.Res. A365, 385 (1995)

O.Dragoun, M.Rysavy, N.Dragounova, V.Brabec, M.Fiser

An Improved Method for the Measurement of Fine Effects in Electron Spectra

RADIOACTIVITY 241Pu(α), (β-); measured β spectra; 99mTc(IT), (β-); measured I(ce). Electron spectra fine effects measurement improved method.

doi: 10.1016/0168-9002(95)00631-1
Citations: PlumX Metrics

1993DR01      Phys.Rev. C47, 870 (1993)

O.Dragoun, M.Rysavy, C.Gunther

Multipole Character of the Proposed 220 eV Transition in 229Pa

NUCLEAR STRUCTURE 229Pa; calculated transitions ICC; deduced induced electric dipole moment, E1 transition enhancement features.

doi: 10.1103/PhysRevC.47.870
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1992DR06      J.Phys.(London) G18, 1991 (1992)

O.Dragoun, M.Rysavy

Systematic Errors in the Tables of Theoretical Total Internal Conversion Coefficients

NUCLEAR STRUCTURE Z=30, 60, 92; calculated different multipole transition ICC; deduced systematic errors in other work.

doi: 10.1088/0954-3899/18/12/013
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1992RY01      Europhys.Lett. 17, 303 (1992)

M.Rysavy, O.Dragoun

What Can We Learn from the Internal-Conversion Electron Spectra of Multiply Charged Krypton Ions ( Question )

NUCLEAR STRUCTURE 83Kr; calculated ICC for transition; deduced E2 admixture importance in evaluating I(ce).

doi: 10.1209/0295-5075/17/4/004
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1987DR06      Z.Phys. A326, 279 (1987)

O.Dragoun, V.Brabec, M.Rysavy, A.Spalek, K.Freitag

Some Nuclear and Atomic Properties of 201Hg Determined by Conversion Electron Spectroscopy

RADIOACTIVITY 201Tl(EC); measured ce spectra, I(ce). 201Hg levels deduced ICC ratios, B(M1), δ, natural line widths. Electrostatic spectrometer. Theoretical calculations.

1987KO38      J.Phys.(London) B20, 3997 (1987)

A.Kovalik, A.Inoyatov, A.F.Novgorodov, V.Brabec, M.Rysavy, Ts.Vylov, O.Dragoun, A.Minkova

K Auger Spectrum of Iron from the 57Co Decay

ATOMIC PHYSICS 57Fe; measured Auger electrons E(e), I(e). Electrostatic spectrometer, 57Co source.

doi: 10.1088/0022-3700/20/16/012
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1983BR09      Z.Phys. A311, 37 (1983)

V.Brabec, O.Dragoun, M.Rysavy, M.Fiser, A.Kovalik, I.Cserny, I.Kadar

The KLL Auger Spectrum of Manganese

RADIOACTIVITY 55Fe(EC); measured Auger spectra. 55Mn deduced subshell intensity ratios.

doi: 10.1007/BF01411604
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1983HA53      Hyperfine Interactions 13, 257 (1983)

E.Hartmann, M.Rysavy

Effect of Chemical Structure on the Electron Density at the Tellurium Nucleus

NUCLEAR STRUCTURE 125Te; calculated chemical influence on Mossbauer transition ICC. Rescaled Slater exchange term, muffin-tin approximated local potential.

doi: 10.1007/BF01027255
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1982BR16      Z.Phys. A306, 347 (1982)

V.Brabec, M.Rysavy, O.Dragoun, M.Fiser, A.Kovalik, Cs.Ujhelyi, D.Berenyi

Nuclear Structure and Chemical Effects in Internal Conversion of the 35 keV M1 + E2 Transition in 125Te

RADIOACTIVITY 125I(EC) [from 124Xe(n, γ)125Xe(decay)]; measured I(ce). 125Te transition deduced ICC, subshell ratios, δ. Iron yoke π square root 2 magnetic spectrometer.

doi: 10.1007/BF01432375
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1982DR10      Nucl.Phys. A391, 29 (1982)

O.Dragoun, V.Brabec, A.Mastalka, A.Kovalik, M.Rysavy, M.Ya.Kuznetsova, Yu.V.Norseev

Low-Energy Transition Depopulating the Isomeric 8+ Level in 208Po

RADIOACTIVITY 208At(EC) [from 209Bi(3He, 4n)]; measured I(ce). 208Po deduced ICC ratios, γ-multipolarity.

doi: 10.1016/0375-9474(82)90217-2
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1981DR03      Czech.J.Phys. B31, 246 (1981)

O.Dragoun, M.Rysavy, F.Becvar, V.Brabec

Internal Conversion Calculations in Hartree-Fock Atomic Model: Improved agreement with experiment

NUCLEAR STRUCTURE 109Ag, 113In, 139La, 182W, 198,199Hg; calculated ICC for E2, E3, M1, M4 transitions. Hartree-Fock, Hartree-Fock-Slater models.

doi: 10.1007/BF01604506
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1981FU06      Z.Phys. A299, 283 (1981)

M.Fujioka, M.Takashima, M.Kanbe, O.Dragoun, M.Rysavy

Internal Conversion of Valence Shell Electrons: Measurement and analysis for the 10.84 keV transition in 206Bi

RADIOACTIVITY 206Po [from 209Bi(p, 4n), E=39 MeV]; measured I(ce); 207Po [from 209Bi(p, 3n), E=25 MeV]; measured Auger spectra. 206Bi transition deduced γ-multipolarity, structure effects.

ATOMIC PHYSICS Bi; calculated ICC; deduced valence shell configurations. Relativistic Hartree-Fock model.

doi: 10.1007/BF01441269
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1980RY04      Comput.Phys.Commun. 19, 93 (1980)

M.Rysavy, O.Dragoun

A Computer Program for Determination of Nuclear Parameters from Initial Conversion Experiments

NUCLEAR STRUCTURE 199Hg; analyzed transition data; deduced model parameters. Discussion of computer code.

doi: 10.1016/0010-4655(80)90069-7
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1979DR11      Z.Phys. A292, 399 (1979)

O.Dragoun, M.Rysavy, F.Becvar

What Atomic Model Should Be Used in Internal Conversion Calculations (Question)

ATOMIC PHYSICS 109Ag, 113In, 139La, 182W, 198,199Hg; calculated ICC. Hartree-Fock-slater, Hartree-Fock models.

doi: 10.1007/BF01546440
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1977DR06      Z.Phys. A281, 347 (1977)

O.Dragoun, V.Brabec, M.Rysavy, A.Spalek

Internal Conversion Coefficients in the Hartree-Fock Atomic Model. Calculations and Experiments for 199Hg

RADIOACTIVITY 199Au; measured I(ce). 199Hg transitions deduced λ, ICC, δ.

doi: 10.1007/BF01408182
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1977RY01      Czech.J.Phys. 27B, 538 (1977)

M.Rysavy, O.Dragoun, M.Vinduska

Nuclear Structure Effect in Internal Conversion of the 166 keV Hindered M1 Transition in 139La

NUCLEAR STRUCTURE 139La; calculated ICC; deduced penetration parameter, β, λ.

doi: 10.1007/BF01587131
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1976DR07      Z.Phys. A279, 107 (1976)

O.Dragoun, V.Brabec, M.Rysavy, J.Plch, J.Zderadicka

Internal Conversion of High-Multipolarity Transitions in 109Ag and 113In

RADIOACTIVITY 109Cd; measured ICC. 109Ag, 113In transition calculated ICC.

doi: 10.1007/BF01409097
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