NSR Query Results
Output year order : Descending NSR database version of April 25, 2024. Search: Author = J.Kurpeta Found 44 matches. 2022KU09 Phys.Rev. C 105, 034316 (2022) J.Kurpeta, A.Abramuk, T.Rzaca-Urban, W.Urban, L.Canete, T.Eronen, S.Geldhof, M.Gierlik, J.P.Greene, A.Jokinen, A.Kankainen, I.D.Moore, D.A.Nesterenko, H.Penttila, I.Pohjalainen, M.Reponen, S.Rinta-Antila, A.de Roubin, G.S.Simpson, A.G.Smith, M.Vilen β- and γ-spectroscopy study of 119Pd and 119Ag RADIOACTIVITY 119,119mPd(β-)[from 253U(p, F), E=25 MeV]; measured Eβ, Iβ, Eγ, Iγ, βγ-coin, γγ-coin, γγ∓coin; deduced β-branching ratios, logft, T1/2. 252Cf(SF); measured Eγ, Iγ, γ(θ), γγγ-coin. 119Pd; levels, J, π, T1/2 for ground state and proposed 11/2- isomer. 119Ag; deduced levels, J, π, multipolarities, ICC, δ, structure of rotational band. Discovered 2 separate bands in 119Ag possibly feeded by 2 different β-decaying states in 119Pd. Systematics of low-energy excitations in odd-A isotopes of Rh, Ag, In, and selected low-energy levels in odd-A nuclei of cadmium (109Cd, 111Cd, 113Cd, 115Cd, 117Cd, 119Cd, 121Cd, 123Cd), the isotones of palladium. Isotopes of 119Pd were separated and purified using IGISOL technique and JYFLTRAP Penning trap. Gammas from 252Cf spontaneous fission were measured with Gammasphere array at ANL.
doi: 10.1103/PhysRevC.105.034316
2022RZ01 Phys.Rev. C 106, 024322 (2022) T.Rzaca-Urban, K.Sieja, M.Czerwinski, J.Kurpeta, M.Pomorski, W.Urban, J.Wisniewski, M.Wroblewski, L.Canete, T.Eronen, S.Geldhof, A.Jokinen, A.Kankainen, I.D.Moore, D.Nesterenko, H.Penttila, I.Pohjalainen, S.Rinta-Antila, A.de Roubin, M.Vilen Low-spin excitations in 89Br populated in β- decay of 89Se RADIOACTIVITY 89Se(β-), (β-n)[from U(p, F), E=30 MeV, followed by separation of fragments using Ion Guide Isotope Separator On-Line (IGISOL) facility and JYFLTRAP at Jyvaskyla]; measured fission fragment yields, Eγ, Iγ, γγ-coin. 89Se; deduced J, π, T1/2, %β-n or Pn for g.s. decay. 89Br; deduced levels, J, π, multipolarities, β feedings, Gamow-Teller transition, logft, configurations, occupation of neutron and proton orbitals. 88Br; deduced levels, J, π. Comparison with large-scale shell-model calculations. Systematics of level energies, J, π in 83,85,87As, 69,71,73,75,77,79,81,83,85,87,89Br, 87,89,91Rb, 89,91,93Y, 91,93,95Nb.
doi: 10.1103/PhysRevC.106.024322
2020NE06 Phys.Lett. B 808, 135642 (2020) D.A.Nesterenko, A.Kankainen, J.Kostensalo, C.R.Nobs, A.M.Bruce, O.Beliuskina, L.Canete, T.Eronen, E.R.Gamba, S.Geldhof, R.de Groote, A.Jokinen, J.Kurpeta, I.D.Moore, L.Morrison, Zs.Podolyak, I.Pohjalainen, S.Rinta-Antila, A.de Roubin, M.Rudigier, J.Suhonen, M.Vilen, V.Virtanen, J.Aysto Three beta-decaying states in 128In and 130In resolved for the first time using Penning-trap techniques ATOMIC MASSES 128,128m,130,130mIn; measured time-of-flight ion cyclotron resonance (TOF-ICR) frequencies for the ground states and two isomers each in 128In and 128In using the JYFLTRAP Penning trap at the IGISOL facility at the University of Jyvaskyla; deduced mass excesses of three beta-decaying states each in 128In and 130In, and energies of respective isomers, configurations. Activities of 128,130In produced as fission products in U(p, F), E=30 MeV at the Ion Guide Isotope Separator On-Line (IGISOL) facility. Comparison with literature values. 128Sn, 128In, 130In; calculated levels, J, π, configurations using shell-model with the effective interaction jj45pna, and compared with experimental data. RADIOACTIVITY 128mIn(β-)[from U(p, F), E=30 MeV at the IGISOL facility]; measured Eγ, Iγ, βγ-coin, half-life of the new (16+) isomer of 128In. 128Sn; deduced levels, J, π. COMPILATION 130,131,132,133,134Te, 129,130,131,132,133Sb, 128,129,130,131,132Sn, 127,128,129,130,131In, 126,127,128,129,130Cd; compiled ground and isomeric states using data from the ENSDF and XUNDL databases, together with results for In isomers in the present work.
doi: 10.1016/j.physletb.2020.135642
2020UR02 Phys.Rev. C 102, 024318 (2020) W.Urban, T.Rzaca-Urban, J.Wisniewski, J.Kurpeta, A.Plochocki, J.P.Greene, A.G.Smith, G.S.Simpson New, low-energy excitations in 107Mo and 109Mo RADIOACTIVITY 248Cm, 252Cf(SF); measured Eγ, Iγ, γγ-coin, half-lives of the isomer in 107Mo by γγ(t) using the Eurogam2 array for 248Cm(SF) experiment and Gammasphere array for 252Cf(SF). 107,109Mo; deduced levels, isomers, J, π, Jπ for ground states and isomers, total conversion coefficients for an isomeric transition in 107Mo, configurations. Systematics of low-energy excitations and γ deformation parameters in Mo isotopes.
doi: 10.1103/PhysRevC.102.024318
2019KU16 Phys.Rev. C 100, 034316 (2019) J.Kurpeta, A.Plochocki, W.Urban, A.Abramuk, L.Canete, T.Eronen, A.Fijalkowska, S.Geldhof, K.Gotowicka, A.Jokinen, A.Kankainen, I.D.Moore, D.Nesterenko, H.Penttila, I.Pohjalainen, M.Pomorski, M.Reponen, S.Rinta-Antila, A.de Roubin, T.Rzaca-Urban, M.Vilen, J.Wisniewski First β-decay scheme of 107Nb: New insight into the low-energy levels of 107Mo RADIOACTIVITY 107Nb(β-)[from U(p, F), E=25 MeV from the K-130 cyclotron at the University of Jyvaskyla, followed by separation of fission fragments using IGISOL-4 for mass separation, and JYFLTRAP Penning trap for isobaric purification]; measured yields of Mo and Nb ions, Eγ, Iγ, γγ- and βγ-coin, γ(Kα x-ray)-coin, half-life of the decay of 107Nb using a plastic scintillator for β particles and three Ge detectors for low-energy γ rays. 107Mo; deduced levels, J, π, bands, K-conversion coefficients for three transitions, total conversion coefficient for one transition, multipolarities, β feedings, logft. Systematics of energies of the first and second 1/2+ levels in N=55-71, Z(even)=40-46. Comparison of the experimental γ-ray transition intensities between low-lying levels in 105Mo and 107Mo. Discussed the revised energy of the 420-ns isomer.
doi: 10.1103/PhysRevC.100.034316
2019WI11 Phys.Rev. C 100, 054331 (2019) J.Wisniewski, W.Urban, M.Czerwinski, J.Kurpeta, A.Plochocki, M.Pomorski, T.Rzaca-Urban, K.Sieja, L.Canete, T.Eronen, S.Geldhof, A.Jokinen, A.Kankainen, I.D.Moore, D.A.Nesterenko, H.Penttila, I.Pohjalainen, S.Rinta-Antila, A.de Roubin, M.Vilen Excited states in 87Br populated in β decay of 87Se RADIOACTIVITY 87Se(β-)[from Th(p, F), E=25 MeV using the IGISOL technique, then separated on a dipole magnet and JYFLTRAP Penning trap setup]; measured Eγ, Iγ, γγ-coin using an array of six high-resolution Ge detectors with thin carbon windows at the University of Jyvaskyla. 87Br; deduced levels, J, π, β feedings, logft values, configurations. 87Se; deduced ground-state Jπ. Comparison with large-scale shell-model calculations, and with previous experimental results.
doi: 10.1103/PhysRevC.100.054331
2018KU13 Phys.Rev. C 98, 024318 (2018) J.Kurpeta, A.Plochocki, W.Urban, T.Eronen, A.Jokinen, A.Kankainen, V.S.Kolhinen, I.D.Moore, H.Penttila, M.Pomorski, S.Rinta-Antila, T.Rzaca-Urban, J.Wisniewski Excited levels in the multishaped 117Pd nucleus studied via β decay of 117Rh RADIOACTIVITY 117Rh(β-)[from 238U(p, F), E=25 MeV followed by separation of 117Rh using IGISOL-4 mass separator coupled to the JYFLTRAP Penning trap at Jyvaskyla]; measured Eγ, Iγ, Pd x-rays, βγ-, (x-ray)γ- and γγ-coin, half-life of 117Rh decay from γ-decay curves using plastic scintillator for β detection and Ge detectors for γ detection. 117Pd; deduced levels, J, π, β feedings, logft values, configurations, Gamow-Teller transition strengths. 117Rh; deduced preliminary J and π of ground state from theoretical calculations and systematics of Rh isotopes. Systematics of low-spin levels in odd A=101-119 Rh isotopes and odd A=103-117 Pd isotopes, isomeric states and γ transitions in odd A=105-117 Pd isotopes, and negative-parity levels in odd A, N=57-71 Mo, Ru, and Pd isotopes.
doi: 10.1103/PhysRevC.98.024318
2017CZ01 Phys.Rev. C 95, 024321 (2017) M.Czerwinski, K.Sieja, T.Rzaca-Urban, W.Urban, A.Plochocki, J.Kurpeta, J.Wisniewski, H.Penttila, A.Jokinen, S.Rinta-Antila, L.Canete, T.Eronen, J.Hakala, A.Kankainen, V.S.Kolhinen, J.Koponen, I.D.Moore, I.Pohjalainen, J.Reinikainen, V.Simutkin, A.Voss, I.Murray, C.Nobs Penning-trap-assisted study of excitations in 88Br β decay of 88Se RADIOACTIVITY 88Se(β-)[from U(p, F), E=30 MeV using Ion Guide Isotope Separator On-Line (IGISOL) facility and JYFLTRAP at Jyvaskyla]; measured yields of fission fragments, Eγ, Iγ, βγ- and γγ-coin, half-life of an isomer by γ(t). 88Br; deduced levels, J, π, total conversion coefficients from intensity balances, multipolarities, β feedings, log ft, configurations, comparison with large-scale shell-model calculations. NUCLEAR STRUCTURE 88Br; calculated levels, J, π, occupation of neutron and proton orbitals using large-scale shell-model. Comparison with experimental data.
doi: 10.1103/PhysRevC.95.024321
2017UR03 Phys.Rev. C 96, 044333 (2017) W.Urban, M.Czerwinski, J.Kurpeta, T.Rzaca-Urban, J.Wisniewski, T.Materna, L.W.Iskra, A.G.Smith, I.Ahmad, A.Blanc, H.Faust, U.Koster, M.Jentschel, P.Mutti, T.Soldner, G.S.Simpson, J.A.Pinston, G.de France, C.A.Ur, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, A.Kankainen, I.D.Moore, J.Rissanen, A.Saastamoinen, J.Szerypo, C.Weber, J.Aysto Shape coexistence in the odd-odd nucleus 98Y: The role of the g9/2 neutron extruder NUCLEAR REACTIONS 235U(n, F), E=cold neutrons from PF1B facility at ILL Grenoble; measured Eγ, Iγ, γγ-coin, delayed γγ-coin, half-lives of several isomers in 98Y using the EXILL array at Grenoble. 98Y; deduced levels, isomers, J, π, bands, configurations, deformed and spherical isomers. RADIOACTIVITY 248Cm, 252Cf(SF); measured Eγ, Iγ, γγ-coin, γγ(θ), γγ-coin with γ rays from fission partner 147La in 248Cm SF decay using Eurogam2 array at Grenoble and Gammasphere array at Argonne. 98Y; deduced levels, J, π, multipolarities. 98Sr, 98,98mY(β-)[from 235U(n, F), E=cold neutrons and using Lohengrin fission-fragment separator]; measured Eγ, Iγ, γγ-coin, γγ(θ), γγ(linear pol), half-lives of decays of 98Sr, 98Y and 98Y isomer, excitation energy of the 2.36-s isomer in 98Y by using JYFLTRAP Penning trap at Jyvaskyla accelerator facility, . 98Y, 98Zr; deduced levels, J, π, multipolarities, mixing ratios, β feedings, logft, configurations. Comparison of negative-parity levels in 98Y with Interacting Boson Fermion Fermion Model (IBFFM) and Quasi-Particle Rotor Model (QPRM) calculations.
doi: 10.1103/PhysRevC.96.044333
2014KU01 Hyperfine Interactions 223, 175 (2014) J.Kurpeta, A.Jokinen, H.Penttila, A.Plochocki, J.Rissanen, W.Urban, J.Aysto Trap-assisted studies of odd, neutron-rich isotopes from Tc to Pd
doi: 10.1007/s10751-012-0616-5
2014KU28 Phys.Rev. C 90, 064315 (2014) J.Kurpeta, W.Urban, A.Plochocki, T.Rzaca-Urban, A.G.Smith, J.F.Smith, G.S.Simpson, I.Ahmad, J.P.Greene, A.Jokinen, H.Penttila Neutron configurations in 113Pd RADIOACTIVITY 248Cm, 252Cf(SF); measured prompt Eγ, Iγ, γγ-coin using EOROGAM-II array at Jyvaskyla and Gammasphere array at ANL. 113Pd; deduced levels, J, π, bands configuration, staggering, alignments Comparison with band structures of 109Mo, 109,112,113Pd, 110,111Ru. Discussed possible oblate-shape of low-energy bandheads. 113Rh(β-)[from 238U(p, X), E=25 MeV using IGISOL at Jyvaskyla, followed by mass separation]; measured Eγ, Iγ, Eβ, βγ-, γγ-coin. 113Pd; deduced levels, J, π, logft, configurations, B(GT) strengths and comparison with those from 113Ru to 113Rh decay.
doi: 10.1103/PhysRevC.90.064315
2013DE20 Phys.Rev. C 87, 067303 (2013) H.De Witte, S.Eeckhaudt, A.N.Andreyev, I.N.Borzov, J.Cederkall, A.De Smet, D.V.Fedorov, V.N.Fedoseyev, S.Franchoo, M.Gorska, H.Grawe, G.Huber, M.Huyse, Z.Janas, U.Koester, W.Kurcewicz, J.Kurpeta, A.Plochocki, K.Van de Vel, P.Van Duppen, L.Weissman β- decay of the neutron-rich isotope 215Pb RADIOACTIVITY 215Pb(β-)[from 238U(p, X), E=1.4 GeV]; measured Eβ, Eγ, Iγ, βγ-, γγ-coin, half-life of 215Pb g.s., conversion coefficient. 215Bi; deduced levels, J, π, β feedings, logft, multipolarity. 215Pb beam produced using resonant laser ionization (RILIS) and mass separator at ISOLDE-CERN facility. Systematics of lowest 7/2- level energies in odd-A Bi nuclei.
doi: 10.1103/PhysRevC.87.067303
2012KU06 Phys.Rev. C 85, 027302 (2012) J.Kurpeta, W.Urban, T.Materna, H.Faust, U.Koster, J.Rissanen, T.Rzaca-Urban, C.Mazzocchi, A.G.Smith, J.F.Smith, J.P.Greene, I.Ahmad Low-spin structure of 85Se and the βn branching of 85As RADIOACTIVITY 85As(β-)[from 235U(n, F)]; measured Eγ, Iγ, βγ-, γγ-coin. 85Se; deduced levels, J, π, configuration. 85As(β-n); discussed delayed neutron decay branch. RADIOACTIVITY 248Cm, 252Cf(SF); measured Eγ, Iγ, γγ-coin for prompt γ rays. 85Se; deduced levels, J, π. Eurogam2 and Gammasphere arrays.
doi: 10.1103/PhysRevC.85.027302
2012KU28 Phys.Rev. C 86, 044306 (2012) J.Kurpeta, W.Urban, A.Plochocki, J.Rissanen, J.A.Pinston, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, A.Kankainen, I.D.Moore, H.Penttila, A.Saastamoinen, C.Weber, J.Aysto Low-spin excitations in the 109Tc nucleus RADIOACTIVITY 109Mo(β-)[from 238U(d, F), E=25 MeV]; measured Eγ, Iγ, βγ-coin, x rays, half-life, K-shell and total conversion coefficients using IGISOL + JYFLTRAP facilities at Jyvaskyla. 109Tc; deduced levels, J, π, Iβ, logft. 109Mo; deduced J, π of ground state. 109Mo, 109Tc(β-); deduced ground state β feedings. decay, and with quasiparticle-rotor model calculations.
doi: 10.1103/PhysRevC.86.044306
2012RI05 Phys.Rev. C 86, 034337 (2012) J.Rissanen, J.Kurpeta, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, A.Kankainen, I.D.Moore, H.Penttila, A.Plochocki, A.Saastamoinen, W.Urban, C.Weber, J.Aysto Structure of 115Ag studied by β- decays of 115Pd and 115Pdm RADIOACTIVITY 115Pd, 115mPd(β-)[from 115Ru-115Rh-115Pd decay chain, 115Ru formed in U(p, X), E=25 MeV]; measured Eγ, Iγ, Eβ, βγ-, βγγ-coin using IGISOL and JYFLTRAP facilities in Jyvaskyla. 115Ag; deduced levels, J, π, multipolarity, Iβ, logft, Nilsson configuration, β strength distribution. Systematics of negative and positive parity Nilsson states in 109,111,113,115,117Ag. 115Pd; discussed spin and parity of ground state and isomer. Comparison with level scheme of 111Ag.
doi: 10.1103/PhysRevC.86.034337
2012RO01 J.Phys.(London) G39, 015101 (2012) C.Rodriguez Triguero, A.M.Bruce, T.Eronen, I.D.Moore, M.Bowry, A.M.D.Bacelar, A.Y.Deo, V.-V.Elomaa, D.Gorelov, J.Hakala, A.Jokinen, A.Kankainen, P.Karvonen, V.S.Kolhinen, J.Kurpeta, T.Malkiewicz, P.J.R.Mason, H.Penttila, M.Reponen, S.Rinta-Antila, J.Rissanen, A.Saastamoinen, G.S.Simpson, J.Aysto Trap-assisted separation of nuclear states for gamma-ray spectroscopy: the example of 100Nb RADIOACTIVITY 100Nb(β-); measured Eγ, Iγ, β-γ-coin.; deduced energy levels, J, π for ground and isomeric state transitions. JYFLTRAP installation.
doi: 10.1088/0954-3899/39/1/015101
2011KU16 Phys.Rev. C 84, 044304 (2011) J.Kurpeta, W.Urban, A.Plochocki, J.Rissanen, J.A.Pinston, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, A.Kankainen, P.Karvonen, I.D.Moore, H.Penttila, A.Saastamoinen, C.Weber, J.Aysto Signatures of oblate deformation in the 111Tc nucleus RADIOACTIVITY 111Mo(β-)[from 238U(d, F), E=25 MeV]; measured Eγ, Iγ, γγ-, βγ-coin, half-life. 111Tc; deduced levels, J, π, conversion coefficients, multipolarities, Iβ, logft, Q value. 111Tc(β-) [from 111Tc decay]; measured Eγ, βγ-coin. IGISOL3 mass separator coupled to JYFLTRAP Penning trap. Comparison with particle-plus-rotor model calculations.
doi: 10.1103/PhysRevC.84.044304
2011RI01 Phys.Rev. C 83, 011301 (2011); Erratum Phys.Rev. C 83, 029901 (2011) J.Rissanen, J.Kurpeta, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, I.D.Moore, P.Karvonen, A.Plochocki, L.Prochniak, H.Penttila, S.Rahaman, M.Reponen, A.Saastamoinen, J.Szerypo, W.Urban, C.Weber, J.Aysto Decay study of 114Tc with a Penning trap RADIOACTIVITY 114Tc(β-)[from U(d, X), E=25 MeV]; measured Eγ, Iγ, γγ-coin, half-lives, mass difference by Penning-Trap (JYFLTRAP) assisted spectroscopy. IGISOL facility. 114Ru; deduced levels, isomers, J, π, configurations, Q value for β decay, logft. Comparison with microscopic Bohr-Hamiltonian calculations using Sly4 Skyrme interaction.
doi: 10.1103/PhysRevC.83.011301
2011RI07 Eur.Phys.J. A 47, 97 (2011); Erratum Eur.Phys.J. A 47, 116 (2011) J.Rissanen, J.Kurpeta, A.Plochocki, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, A.Kankainen, P.Karvonen, I.D.Moore, H.Penttila, S.Rahaman, A.Saastamoinen, W.Urban, C.Weber, J.Aysto Penning-trap-assisted study of 115Ru beta decay RADIOACTIVITY 115Ru(β-)[from U(p, f), E=25 MeV, selected by JYFLTRAP]; measured Eγ, Iγ, Eβ, Iβ, X-rays, βγ-coin. 115Rh deduced levels, J, π, level log ft, level β-feeding, ICC(K) for 80.1 keV transition, rotational constants for the K=1/2 intruder band. 115Ru deduced ground state J, π, β-strength distribution. Penning-trap-assisted β and γ spectroscopy, IGISOL facility. Comparison with near-by isotopes of Ru and Rh.
doi: 10.1140/epja/i2011-11097-0
2010KU01 Acta Phys.Pol. B41, 469 (2010) J.Kurpeta, J.Rissanen, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, P.Karvonen, I.D.Moore, H.Penttila, A.Plochocki, S.Rahaman, S.Rinta-Antila, J.Ronkainen, A.Saastamoinen, T.Sonoda, J.Szerypo, W.Urban, Ch.Weber, J.Aysto Progress in Trap Assisted β Decay Spectroscopy of 115Ru RADIOACTIVITY 115Ru(β-) [from 238U(p, F)115Ru, E=25 MeV]; measured Eγ, Iγ, γγ-coin.; deduced energy levels, gamma transitions, T1/2. JYFLTRAP Penning trap system.
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2010KU19 Phys.Rev. C 82, 027306 (2010) J.Kurpeta, W.Urban, A.Plochocki, J.Rissanen, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, A.Kankainen, P.Karvonen, I.D.Moore, H.Penttila, S.Rahaman, A.Saastamoinen, T.Sonoda, J.Szerypo, C.Weber, J.Aysto Excited states in 115Pd populated in the β- decay of 115Rh RADIOACTIVITY 115Rh(β-); measured Eγ, Iγ, γγ-coin. 115Pd; deduced levels, J, π. Systematics of low-lying states in odd-A Mo, Ru and Pd nuclei from N=61-71.
doi: 10.1103/PhysRevC.82.027306
2010KU25 Phys.Rev. C 82, 064318 (2010) J.Kurpeta, J.Rissanen, A.Plochocki, W.Urban, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, A.Kankainen, P.Karvonen, T.Malkiewicz, I.D.Moore, H.Penttila, A.Saastamoinen, G.S.Simpson, C.Weber, J.Aysto New isomer and decay half-life of 115Ru RADIOACTIVITY 115Ru(IT), (β-)[From 238U(p, X), E=25 MeV]; measured Eγ, Iγ, βγ-, γγ-coin, isomer and ground state half-lives, JYFLTRAP assisted β-γ spectroscopy. 115Ru, 115Rh; deduced levels, J, π, conversion coefficients, multipolarity. systematics of low-lying levels and isomers in 113,115,117Pd, 113,115Ru.
doi: 10.1103/PhysRevC.82.064318
2010UR03 Phys.Rev. C 82, 064308 (2010) W.Urban, J.A.Pinston, T.Rzaca-Urban, J.Kurpeta, A.G.Smith, I.Ahmad Near-yrast, medium-spin structure of the 109Tc nucleus RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin, γγ(θ) using EUROGAM2 array. 109Tc; deduced levels, J, π, conversion coefficients, multipolarities, rotational bands. 110Tc, 135,136,137I; measured Eγ. Comparison with level systematics of 103,105,107,109,111Tc. Comparison with quasiparticle-rotor model (QPRM) calculations. Evidence for triaxial nature of 109Tc. NUCLEAR STRUCTURE 107,109Tc; calculated levels, J, π, rotational bands, and γ-ray branching ratios using quasiparticle-rotor model (QPRM).
doi: 10.1103/PhysRevC.82.064308
2008SA05 Eur.Phys.J. A 35, 159 (2008) M.Sanchez-Vega, H.Mach, R.B.E.Taylor, B.Fogelberg, A.Lindroth, A.J.Aas, P.Dendooven, A.Honkanen, M.Huhta, G.Lhersonneau, M.Oinonen, J.M.Parmonen, H.Penttila, J.Aysto, J.R.Persson, J.Kurpeta Studies of quadrupole collectivity in the γ-soft 106Ru RADIOACTIVITY 106Tc(β+) [from 238U(p, F), E=25 MeV]; measured Eγ, Iγ, γγ-, βγ-coin, T1/2, B(E2) using advanced time-delayed method. 106Ru deduced levels, J, π, T1/2. Comparison with various models.
doi: 10.1140/epja/i2007-10530-3
2007KU06 Eur.Phys.J. A 31, 263 (2007) J.Kurpeta, V.-V.Elomaa, T.Eronen, J.Hakala, A.Jokinen, P.Karvonen, I.Moore, H.Penttila, A.Plochocki, S.Rahaman, S.Rinta-Antila, J.Rissanen, J.Ronkainen, A.Saastamoinen, T.Sonoda, W.Urban, Ch.Weber, J.Aysto Penning trap assisted decay spectroscopy of neutron-rich 115Ru RADIOACTIVITY 115Ru(β-) [from 238U(p, F)]; measured Eγ, Iγ, γγ-coin. 115Rh deduced levels, J, π. Level systematics in neighboring nuclides discussed. NUCLEAR REACTIONS 238U(p, F), E=25 MeV; measured fission fragment yields. Mass separator, Penning trap.
doi: 10.1140/epja/i2007-10009-3
2007KU23 Eur.Phys.J. A 33, 307 (2007) J.Kurpeta, W.Urban, Ch.Droste, A.Plochocki, S.G.Rohozinski, T.Rzaca-Urban, T.Morek, L.Prochniak, K.Starosta, J.Aysto, H.Penttila, J.L.Durell, A.G.Smith, G.Lhersonneau, I.Ahmad Low-spin structure of 113Ru and 113Rh RADIOACTIVITY 113Ru, 113Rh(β-) [from 248cm(SF)]; measured Eγ, Iγ, βγ, γγ-coinc. 113Ru, Rh deduced levels, J, π, logft.Compared results to model calculations.
doi: 10.1140/epja/i2006-10464-2
2007KU30 Phys.Rev. C 76, 054320 (2007) J.Kurcewicz, W.Czarnacki, M.Karny, M.Kasztelan, M.Kisielinski, A.Korgul, W.Kurcewicz, J.Kurpeta, S.Lewandowski, P.Majorkiewicz, H.Penttila, A.Plochocki, B.Roussiere, O.Steczkiewicz, A.Wojtasiewicz Identification of an α-decaying (9-) isomer in 216Fr RADIOACTIVITY 220Ac, 216Fr, 212At (α) [from 209Bi(14N, F), E=5.6 MeV/nucleon]; measured α-spectra. 212At, 216Fr; deduced levels, J, π, half-lives. 216Fr; deduced Eα, Qα, excitation energies, mass excess.
doi: 10.1103/PhysRevC.76.054320
2005DE01 Eur.Phys.J. A 23, 243 (2005) H.De Witte, A.N.Andreyev, S.Dean, S.Franchoo, M.Huyse, O.Ivanov, U.Koster, W.Kurcewicz, J.Kurpeta, A.Plochocki, K.Van de Vel, J.Van de Walle, P.Van Duppen Alpha-decay of neutron-deficient 200Fr and heavier neighbours RADIOACTIVITY 200,201,203,205Fr, 196,197,199,201At, 193Bi(α) [from Th(p, X) and subsequent decay]; measured Eα, T1/2. 201Fr, 197At, 193Bi, 189Tl deduced levels, J, π.
doi: 10.1140/epja/i2004-10077-9
2005PE12 Nucl.Instrum.Methods Phys.Res. A546, 418 (2005) K.Perajarvi, J.Cerny, J.Hakala, J.Huikari, A.Jokinen, P.Karvonen, J.Kurpeta, D.Lee, I.Moore, H.Penttila, A.Popov, J.Aysto New ion-guide for the production of beams of neutron-rich nuclei between Z = 20 - 28 NUCLEAR REACTIONS 197Au(65Cu, X)62Co/63Co, E ≈ 400-460 MeV; measured yields. Ion-guide isotope separator. RADIOACTIVITY 63Co(β-) [from 197Au(65Cu, X)]; measured β-delayed Eγ, Iγ. Ion-guide isotope separator.
doi: 10.1016/j.nima.2005.03.124
2005PE23 Eur.Phys.J. A 25, Supplement 1, 749 (2005) K.Perajarvi, J.Cerny, U.Hager, J.Hakala, J.Huikari, A.Jokinen, P.Karvonen, J.Kurpeta, D.Lee, I.Moore, H.Penttila, A.Popov, J.Aysto Production of beams of neutron-rich nuclei between Ca and Ni using the ion-guide technique RADIOACTIVITY 63Cu(EC) [from 197Au(65Cu, X)]; measured β-delayed Eγ, Iγ. NUCLEAR REACTIONS 197Au(65Cu, X)62Cu/63Cu, E=443 MeV; measured yields.
doi: 10.1140/epjad/i2005-06-060-x
2004DE16 Phys.Rev. C 69, 044305 (2004) H.De Witte, A.N.Andreyev, I.N.Borzov, E.Caurier, J.Cederkall, A.De Smet, S.Eeckhaudt, D.V.Fedorov, V.N.Fedosseev, S.Franchoo, M.Gorska, H.Grawe, G.Huber, M.Huyse, Z.Janas, U.Koster, W.Kurcewicz, J.Kurpeta, A.Plochocki, K.Van de Vel, P.Van Duppen, L.Weissman First observation of the β decay of neutron-rich 218Bi by the pulsed-release technique and resonant laser ionization RADIOACTIVITY 218Bi(β-) [from U(p, X)]; measured Eγ, Iγ, βγ-coin, T1/2. 218Po deduced levels, J, π. Comparison with model predictions. Pulsed-release technique, resonant laser ionization.
doi: 10.1103/PhysRevC.69.044305
2004FR14 Nucl.Phys. A734, 449 (2004) S.Franchoo, H.De Witte, A.N.Andreyev, J.Cederkall, S.Dean, A.De Smet, S.Eeckhaudt, D.V.Fedorov, V.N.Fedosseev, M.Gorska, G.Huber, M.Huyse, Z.Janas, U.Koster, W.Kurcewicz, J.Kurpeta, P.Mayet, A.Plochocki, K.Van de Vel, P.Van Duppen, L.Weissman, and the ISOLDE Collaboration Beta-decay measurements of neutron-rich thallium, lead, and bismuth by means of resonant laser ionisation RADIOACTIVITY 218Bi(β-); measured Eγ, Iγ, βγ-coin. Resonant laser ionization.
doi: 10.1016/j.nuclphysa.2004.01.083
2004UR04 Eur.Phys.J. A 22, 157 (2004) W.Urban, A.Zlomaniec, G.Simpson, J.A.Pinston, J.Kurpeta, T.Rzaca-Urban, J.L.Durell, A.G.Smith, B.J.Varley, N.Schulz, I.Ahmad New spins for ground states and isomers in 115Pd and 117Pd RADIOACTIVITY 248Cm(SF); measured Eγ, Iγ, γγ-coin. 115,117Pd deduced levels, J, π, isomeric states. Eurogam2 array.
doi: 10.1140/epja/i2004-10090-0
2004WO17 Nucl.Phys. A746, 663c (2004) A.Wojtasiewicz, G.Canchel, A.Emsallem, M.Gierlik, Z.Janas, M.Kisielinski, W.Kurcewicz, J.Kurpeta, H.Lefort, S.Lewandowski, H.Penttila, A.Plochocki, E.Roeckl, B.Roussiere, S.Sidor, A.Syntfeld Investigation of a gas catcher/ion guide system at the Warsaw cyclotron
doi: 10.1016/j.nuclphysa.2004.09.047
2003KU25 Eur.Phys.J. A 18, 5 (2003) J.Kurpeta, A.Plochocki, A.N.Andreyev, J.Aysto, A.De Smet, H.De Witte, A.-H.Evensen, V.Fedoseyev, S.Franchoo, M.Gorska, M.Huhta, M.Huyse, Z.Janas, A.Jokinen, M.Karny, E.Kugler, W.Kurcewicz, U.Koster, J.Lettry, A.Nieminen, K.Partes, M.Ramdhane, H.L.Ravn, K.Rykaczewski, J.Szerypo, K.Van de Vel, P.Van Duppen, L.Weissman, G.Walter, A.Wohr, and the IS387 and ISOLDE Collaborations The decay of the new neutron-rich isotope 217Bi RADIOACTIVITY 217Bi(β-) [from 232Th, 238U(p, X)]; measured Eγ, Iγ, βγ-coin, T1/2, Qβ; deduced log ft. 217Po deduced levels. 217Po(α) [from 217Bi decay]; measured Eα, T1/2. Mass separator.
doi: 10.1140/epja/i2003-10065-7
2003KU26 Eur.Phys.J. A 18, 31 (2003) J.Kurpeta, A.Plochocki, A.N.Andreyev, J.Aysto, A.De Smet, H.De Witte, A.-H.Evensen, V.Fedoseyev, S.Franchoo, M.Gorska, H.Grawe, M.Huhta, M.Huyse, Z.Janas, A.Jokinen, M.Karny, E.Kugler, W.Kurcewicz, U.Koster, J.Lettry, A.Nieminen, K.Partes, M.Ramdhane, H.L.Ravn, K.Rykaczewski, J.Szerypo, K.Van de Vel, P.Van Duppen, L.Weissman, G.Walter, A.Wohr, and the IS387 and ISOLDE Collaborations Isomeric and ground-state decay of 215Bi RADIOACTIVITY 215mBi(IT), (β-); 215Bi(β-) [from 232Th, 238U(p, X)]; measured Eγ, Iγ, X-ray spectra, γγ-, βγ-, (X-ray)γ-coin; deduced log ft. 215Bi deduced levels, J, π, configurations, ICC, high-spin isomer T1/2. 215Po deduced levels, J, π, configurations. Mass separator.
doi: 10.1140/epja/i2003-10066-6
2002AN15 Eur.Phys.J. A 14, 63 (2002) A.N.Andreyev, K.Van de Vel, A.Barzakh, A.De Smet, H.De Witte, D.V.Fedorov, V.N.Fedoseyev, S.Franchoo, M.Gorska, M.Huyse, Z.Janas, U.Koster, W.Kurcewicz, J.Kurpeta, V.I.Mishin, K.Partes, A.Plochocki, P.Van Duppen, L.Weissman Nuclear Spins, Magnetic Moments and α-Decay Spectroscopy of Long-Lived Isomeric States in 185Pb RADIOACTIVITY 185mPb(α) [from U(p, X)]; measured Eα, Eγ, αγ-coin, T1/2. 181Hg deduced levels, possible J, π. On-line mass separator. NUCLEAR MOMENTS 185mPb; measured hfs; deduced isomeric states J, π. Resonance ionization laser ion source.
doi: 10.1007/s10050-002-8790-5
2002KU18 Eur.Phys.J. A 13, 449 (2002) J.Kurpeta, G.Lhersonneau, A.Plochocki, J.C.Wang, P.Dendooven, A.Honkanen, M.Huhta, M.Oinonen, H.Penttila, K.Perajarvi, J.R.Persson, J.Aysto Decay of the Neutron-Rich Isotope 113Ru to 113Rh RADIOACTIVITY 113,113mRu(β-) [from 238U(p, X)]; measured Eγ, Iγ, γγ-, (X-ray)γ-coin; deduced Gamow-Teller strength distributions. 113Rh deduced levels, possible J, π, shape coexistence features. Mass-separated source.
doi: 10.1007/s10050-002-8775-4
2000KU06 Eur.Phys.J. A 7, 49 (2000) J.Kurpeta, A.Andreyev, J.Aysto, A.-H.Evensen, M.Huhta, M.Huyse, A.Jokinen, M.Karny, E.Kugler, J.Lettry, A.Nieminen, A.Plochocki, M.Ramdhane, H.L.Ravn, K.Rykaczewski, J.Szerypo, P.Van Duppen, G.Walter, A.Wohr, and the ISOLDE Collaboration The Decay of the Neutron-Rich Nucleus 216Bi RADIOACTIVITY 216Bi(β-) [from 232Th(p, X), E=1 GeV]; measured Eγ, Iγ(t), γγ-, βγ-coin. 216Po deduced levels, possible J, π. Mass separator, tape transport.
doi: 10.1007/s100500050010
2000MU10 Phys.Rev. C61, 054308 (2000) W.F.Mueller, B.Bruyneel, S.Franchoo, M.Huyse, J.Kurpeta, K.Kruglov, Y.Kudryavtsev, N.V.S.V.Prasad, R.Raabe, I.Reusen, P.Van Duppen, J.Van Roosbroeck, L.Vermeeren, L.Weissman, Z.Janas, M.Karny, T.Kszczot, A.Plochocki, K.-L.Kratz, B.Pfeiffer, H.Grawe, U.Koster, P.Thirolf, W.B.Walters β Decay of 66Co, 68Co, and 70Co RADIOACTIVITY 66,68,70Co(β-) [from 238U(p, F)]; measured β-delayed Eγ, Iγ, γγ-, βγ-coin, T1/2. 66,68,70Ni deduced levels, J, π, β-branching. Laser-ionization isotope separation on-line. Comparison with shell model results. NUCLEAR REACTIONS 238U(p, F)68Ni/69Ni/70Ni/71Ni/72Ni/73Ni/74Ni/66Co/67Co/68Co/69Co/70Co, E=30 MeV; measured isotope yields. Laser-ionization isotope separation on-line.
doi: 10.1103/PhysRevC.61.054308
1998KU17 Eur.Phys.J. A 2, 241 (1998) J.Kurpeta, G.Lhersonneau, J.C.Wang, P.Dendooven, A.Honkanen, M.Huhta, M.Oinonen, H.Penttila, K.Perajarvi, J.R.Persson, A.Plochocki, J.Aysto First Decay Scheme of 113Tc and Identification of 113mRu RADIOACTIVITY 113Tc(β-) [from 238U(p, F), E=25 MeV]; measured Eγ, Iγ, γγ-coin, βγ(t). 113Ru deduced levels, isomer T1/2, possible J, π, configuration, ground state and isomer decay feeding patterns.
doi: 10.1007/s100500050114
1996LH04 Phys.Rev. C54, 1592 (1996) G.Lhersonneau, P.Dendooven, A.Honkanen, M.Huhta, M.Oinonen, H.Penttila, J.Aysto, J.Kurpeta, J.R.Persson, A.Popov First Observation of Nonyrast Levels in 103Zr and Level Systematics of N = 63 Sr, Zr, and Mo Isotones RADIOACTIVITY 103Y(β-) [from U(p, X), E=25 MeV]; measured Eγ, Iγ, γγ-coin, βγ(t), T1/2. 103Zr deduced levels J, π, single particle Nilsson orbitals, band structure. On-line mass separation. NUCLEAR STRUCTURE 101Sr, 103Zr, 105Mo; analyzed level data; deduced systematics.
doi: 10.1103/PhysRevC.54.1592
1996PE25 Phys.Rev. C54, 2760 (1996) H.Penttila, P.Dendooven, A.Honkanen, M.Huhta, G.Lhersonneau, M.Oinonen, J.-M.Parmonen, K.Perajarvi, J.Aysto, J.Kurpeta, J.R.Persson First Observation of β Decay of 108Nb to 108Mo RADIOACTIVITY 108Nb(β-n) [from 238U(p, F), E=25, 30 MeV]; measured γ spectra, βγ-coin, decay curve; deduced levels J, π, T1/2, log ft. 108Mo deduced level T1/2, deformation. NUCLEAR REACTIONS, ICPND 238U(p, F)108Nb/108Mo/108Tc/108Ru, E=25 MeV; measured residuals yields following fission production.
doi: 10.1103/PhysRevC.54.2760
1996PF04 Nucl.Phys. A611, 270 (1996) M.Pfutzner, P.Hornshoj, H.L.Nielsen, J.Kurpeta, A.Plochocki Radiative Electron Capture in the Second Forbidden Decay of 137La RADIOACTIVITY 137La(EC); measured internal bremsstrahlung, Iγ, γ(K X-ray)-coin; deduced shape factors, internal bremsstrahlung branching, log ft. Forbidden decays. Detour transitions model.
doi: 10.1016/S0375-9474(96)00392-2
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