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Search: Author = D.Hodge

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2023ZH03      Phys.Rev. C 107, 014308 (2023)

W.Zhang, B.Cederwall, M.Doncel, O.Aktas, A.Ertoprak, C.Qi, T.Grahn, B.S.Nara Singh, D.M.Cullen, D.Hodge, M.Giles, S.Stolze, K.Auranen, H.Badran, T.Braunroth, T.Calverley, D.M.Cox, Y.D.Fang, P.T.Greenlees, J.Hilton, E.Ideguchi, R.Julin, S.Juutinen, M.Kumar Raju, M.Leino, H.Li, H.Liu, S.Matta, P.Subramaniam, V.Modamio, J.Pakarinen, P.Papadakis, J.Partanen, C.M.Petrache, P.Rahkila, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, J.Sorri, M.J.Taylor, J.Uusitalo, J.J.Valiente-Dobon

Decay spectroscopy of ^{171, 172}Os and ^{171, 172, 174}Ir

NUCLEAR REACTIONS ⁹²Mo(⁸³Kr, X)¹⁷¹/¹⁷²Os/¹⁷¹/¹⁷²/¹⁷⁴Ir, E=383 MeV; measured reaction products, recoils, Eα , Iα, Eγ, Iγ, γγ-coin, (recoil)αγ-coin. ^171,172Os, ^171,172,174Ir; deduced levels, J, π, δ. Newly identified α-decay branch from the bandhead (isomeric state) of the νi_13/2 band in ¹⁷¹Os with competition between α, β, and electromagnetic decays. RITU gas-filled ion separator, GREAT spectrometer and JUROGAM II HPGe array at K130 cyclotron (JYFL).

RADIOACTIVITY ^171,171m,172Os, ^{171m,172,172m,174,174m}Ir(α);^171mOs(IT)[from ⁹²Mo(⁸³Kr, X), E=383 MeV]; measured Eα, Iα, Eγ, Iγ, x-rays, αγ-coin; deduced T_1/2, branching ratios, Q values, formation probabilities, hindrance factor, reduced widths. ^167,168W, ^167,168,170; deduced levels, J, π, transitions. ¹⁸⁰Hg, ¹⁷⁶Pt, ¹⁷²Os, ¹⁶⁸W; calculated total Routhian surface, potential energy surface. Discussed the correlation between α-decay hindrance factor and shape changes. Reaction products implanted into two adjacently mounted double-sided silicon strip detectors (DSSDs) used tp measure α, while γ-rays were detected by double sided planar HPGe. Beam from K10 cyclotron (JYFL).

doi: 10.1103/PhysRevC.107.014308
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2022PA09      Phys.Rev. C 105, 034303 (2022)

E.Parr, J.F.Smith, P.T.Greenlees, P.A.Butler, K.Auranen, R.Chapman, D.M.Cox, D.M.Cullen, L.P.Gaffney, T.Grahn, E.T.Gregor, L.Grocutt, A.Herzan, R.-D.Herzberg, D.Hodge, U.Jakobsson, R.Julin, S.Juutinen, J.M.Keatings, J.Konki, M.Leino, P.P.McKee, C.McPeake, D.Mengoni, A.K.Mistry, B.S.Nara Singh, G.G.O'Neill, J.Pakarinen, P.Papadakis, J.Partanen, P.Peura, P.Rahkila, P.Ruotsalainen, M.Sandzelius, J.Saren, M.Scheck, C.Scholey, M.Siciliano, M.Smolen, J.Sorri, P.Spagnoletti, K.M.Spohr, S.Stolze, M.J.Taylor, J.Uusitalo

Single-particle states and parity doublets in odd-Z ²²¹Ac and ²²⁵Pa from α-decay spectroscopy

RADIOACTIVITY ²²⁵Pa, ²²¹Ac(α)[²²⁵Pa from ²⁰⁸Pb(²⁰Ne, 2np), E=105 MeV, ²²¹Ac from ²⁰⁸Pb(¹⁸O, 4np), E=95 MeV, ²⁰⁸Pb(²⁰Ne, 2npα), E=105 MeV and ²²⁵Pa α decay]; ²¹⁷Fr(α)[from ²²¹Ac α decay]; ²¹³At(α)[from ²¹⁷Fr α decay]; measured reaction products, Eα, Iα, Eγ, Iγ, αγ-coin, summed α+ce(K); deduced T_1/2 decays of ground states of ²²⁵Pa, ²²¹Ac, ²¹⁷Fr, ²¹³At. ²²¹Ac, ²¹⁷Fr; deduced levels, J, π, α- and γ-branching ratios, total conversion coefficients, multipolarities, α-hindrance factors, configurations, parity-doublet states in ²²¹Ac. ²²⁵Pa; deduced ground state J, π. Comparison with previous experimental data, and with model predictions. RITU gas-filled recoil separator, silicon strip detectors (DSSD) for ion implantation measurements and GREAT spectrometer combined with 3 HPGe clover detectors at the University of Jyvaskyla accelerator facility.

doi: 10.1103/PhysRevC.105.034303
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2021ZH52      Phys.Lett. B 820, 136527 (2021)

W.Zhang, B.Cederwall, M.Doncel, O.Aktas, A.Ertoprak, R.Liotta, C.Qi, T.Grahn, B.S.Nara Singh, D.M.Cullen, D.Hodge, M.Giles, S.Stolze, H.Badran, T.Braunroth, T.Calverley, D.M.Cox, Y.D.Fang, P.T.Greenlees, J.Hilton, E.Ideguchi, R.Julin, S.Juutinen, M.Kumar Raju, H.Li, H.Liu, S.Matta, P.Subramaniam, V.Modamio, J.Pakarinen, P.Papadakis, J.Partanen, C.M.Petrache, P.Rahkila, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, J.Sorri, M.J.Taylor, J.Uusitalo, J.J.Valiente-Dobon

Lifetime measurements of excited states in ^{169, 171, 173}Os: Persistence of anomalous B(E2) ratios in transitional rare earth nuclei in the presence of a decoupled i_13/2 valence neutron

NUCLEAR REACTIONS ⁹²Mo(⁸³Kr, X)¹⁶⁹Os/¹⁷¹Os/¹⁷³Os, E=383 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, level lifetimes, B(E2). Recoil-distance Doppler shift and recoil-isomer tagging techniques.

doi: 10.1016/j.physletb.2021.136527
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2020ER01      Eur.Phys.J. A 56, 65 (2020)

A.Ertoprak, B.Cederwall, C.Qi, O.Aktas, M.Doncel, B.Hadinia, R.Liotta, M.Sandzelius, C.Scholey, K.Andgren, T.Back, H.Badran, T.Braunroth, T.Calverley, D.M.Cox, D.M.Cullen, Y.D.Fang, E.Ganioglu, M.Giles, M.B.Gomez Hornillos, T.Grahn, P.T.Greenlees, J.Hilton, D.Hodge, E.Ideguchi, U.Jakobsson, A.Johnson, P.M.Jones, R.Julin, S.Juutinen, S.Ketelhut, A.Khaplanov, M.Kumar Raju, M.Leino, H.Li, H.Liu, S.Matta, V.Modamio, B.S.Nara Singh, M.Niikura, M.Nyman, I.Ozgur, R.D.Page, J.Pakarinen, P.Papadakis, J.Partanen, E.S.Paul, C.M.Petrache, P.Peura, P.Rahkila, P.Ruotsalainen, J.Saren, J.Sorri, S.Stolze, P.Subramaniam, M.J.Taylor, J.Uusitalo, J.J.Valiente-Dobon, R.Wyss

Evidence for octupole collectivity in ¹⁷²Pt

NUCLEAR REACTIONS ⁹⁶Ru(⁷⁸Kr, 2pγ)¹⁷²Pt, E=342, 348 MeV; ⁹²Mo(⁸³Kr, 3nγ)¹⁷²Pt, E=383 MeV; Measured Eγ, Iγ, γγ-coin, γ(θ), γγ(linear polarization), recoils using RITU gas-filled separator, JUROGAM I and JUROGAM II arrays of HPGe detectors, and the GREAT spectrometer consisting of silicon strip detectors, multiwire proportional counter (MWPC), array of Si PIN-diode detectors, one planar and one clover HPGe detector at the K-130 cyclotron facility of the University of Jyvaskyla. 172Pt; deduced high-spin levels, Jπ, multipolarities, bands, configurations, evidence for octupole collectivity. Comparison with large-scale shell model (LSSM) and total Routhian surface (TRS) calculations.

doi: 10.1140/epja/s10050-020-00071-6
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2020PA44      Phys.Rev. C 102, 054335 (2020)

E.Parr, J.F.Smith, P.T.Greenlees, K.Auranen, R.Chapman, D.M.Cullen, T.Grahn, L.Grocutt, A.Herzan, R.-D.Herzberg, D.Hodge, U.Jakobsson, R.Julin, S.Juutinen, J.Konki, C.McPeake, D.Mengoni, A.K.Mistry, K.F.Mulholland, G.G.O'Neill, J.Pakarinen, P.Papadakis, J.Partanen, P.Peura, P.Rahkila, P.Ruotsalainen, M.Sandzelius, J.Saren, M.Scheck, C.Scholey, M.Siciliano, M.Smolen, J.Sorri, S.Stolze, M.J.Taylor, J.Uusitalo

Excited states in ²¹⁷Ra populated in the α decay of ²²¹Th

RADIOACTIVITY ²²¹Th(α)[from ²⁰⁸Pb(¹⁸O, 5n), E=95 MeV at the University of Jyvaskyla Accelerator Laboratory]; measured Eα, Iα, Eγ, Iγ, αγ- and γγ-coin, ce, x rays, half-life of ²²¹Th decay using SAGE and GREAT spectrometers, the latter consisting of double-sided silicon-strip detectors (DSSDs), PIN-diode detectors, and Clover HPGe detectors. ²¹⁷Ra; deduced levels, J, π, conversion coefficients, multipolarities, α-branching ratios, α-hindrance factors, configurations. Comparison with previous experimental results, and with predictions of spherical shell and reflection-asymmetric models. Systematics of low-energy states in odd-A, N=129 isotones: ²¹¹Pb, ²¹³Po, ²¹⁵Rn, ²¹⁷Ra and ²¹⁹Th.

doi: 10.1103/PhysRevC.102.054335
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2019PA45      Phys.Rev. C 100, 044323 (2019)

E.Parr, J.F.Smith, P.T.Greenlees, K.Auranen, P.A.Butler, R.Chapman, D.M.Cox, D.M.Cullen, L.P.Gaffney, T.Grahn, E.T.Gregor, L.Grocutt, A.Herzan, R.-D.Herzberg, D.Hodge, U.Jakobsson, R.Julin, S.Juutinen, J.Keatings, J.Konki, M.Leino, P.P.McKee, C.McPeake, D.Mengoni, A.K.Mistry, K.F.Mulholland, B.S.Nara Singh, G.G.O'Neill, J.Pakarinen, P.Papadakis, J.Partanen, P.Peura, P.Rahkila, P.Ruotsalainen, M.Sandzelius, J.Saren, M.Scheck, C.Scholey, M.Siciliano, M.Smolen, J.Sorri, P.Spagnoletti, K.M.Spohr, S.Stolze, M.J.Taylor, J.Uusitalo

α-decay spectroscopy of the N=130 isotones ²¹⁸Ra and ²²⁰Th: Mitigation of α-particle energy summing with implanted nuclei

RADIOACTIVITY ²¹⁸Ra(α)[from α-decay of ²²²Th formed in ²⁰⁸Pb(¹⁸O, 4n), E=95 MeV]; ²¹⁴Rn(α)[from α-decay of ²¹⁸Ra]; ²²⁰Th(α)[from α-decay of ²²⁴U formed in ²⁰⁸Pb(²⁰Ne, 4n), E=109 MeV]; ²¹⁶Ra(α)[from α-decay of ²²⁰Th]; measured recoiling evaporation residues using RITU gas-filled recoil separator, Eα, Iα, Eγ, Iγ, αγ-coin, half-lives of decays of ²¹⁸Ra, ²¹⁴Rn, ²²⁰Th and ²¹⁶Ra, α-branching ratio for decay to the g.s. and the first 2+ level in ²¹⁴Rn using the GREAT spectrometer at Jyvaskyla accelerator facility; data analyzed using a newly developed technique to mitigate energy summing due to sequential short-lived α decays from nuclei implanted into a silicon detector. ²¹⁴Rn; deduced 2+ level, α-hindrance factor. Comparison with previous experimental data.

doi: 10.1103/PhysRevC.100.044323
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2018CE02      Phys.Rev.Lett. 121, 022502 (2018)

B.Cederwall, M.Doncel, O.Aktas, A.Ertoprak, R.Liotta, C.Qi, T.Grahn, D.M.Cullen, D.Hodge, M.Giles, S.Stolze, H.Badran, T.Braunroth, T.Calverley, D.M.Cox, Y.D.Fang, P.T.Greenlees, J.Hilton, E.Ideguchi, R.Julin, S.Juutinen, M.Kumar Raju, H.Li, H.Liu, S.Matta, V.Modamio, J.Pakarinen, P.Papadakis, J.Partanen, C.M.Petrache, P.Rahkila, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, J.Sorri, P.Subramaniam, M.J.Taylor, J.Uusitalo, J.J.Valiente-Dobon

Lifetime Measurements of Excited States in ¹⁷²Pt and the Variation of Quadrupole Transition Strength with Angular Momentum

NUCLEAR REACTIONS ⁹²Mo(⁸³Kr, 3n)¹⁷²Pt, E=383 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, 2⁺ and 4⁺ lifetimes, B(E2). Comparison with systematics, Alaga rule.

doi: 10.1103/physrevlett.121.022502
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2018GI11      Phys.Rev. C 98, 044315 (2018)

M.M.Giles, D.M.Cullen, B.S.Nara Singh, D.Hodge, M.J.Taylor, M.J.Mallaburn, N.V.Sosnin, L.Barber, J.F.Smith, L.Capponi, M.Smolen, C.Scholey, P.Rahkila, T.Grahn, H.Badran, A.Girka, P.T.Greenlees, R.Julin, J.Konki, O.Nefodov, P.Ruotsalainen, M.Sandzelius, J.Saren, J.Sorri, S.Stolze, J.Uusitalo, J.Pakarinen, P.Papadakis, J.Partanen, T.Braunroth, G.G.O'Neill

Lifetime measurements of lowest states in the in the νg_7/2 (X) νh_11/2 rotational band in ¹¹²I

NUCLEAR REACTIONS ⁵⁸Ni(⁵⁸Ni, n3p), E=230 MeV; measured recoils, Eγ, Iγ, γγ-coin, level half-lives using a differential plunger device, and differential decay curve analysis using RITU for recoil separation, JUROGAM-II array for γ detection, and double-sided silicon strip detector for recoils at the K130 cyclotron facility of the University of Jyvaskyla. ¹¹²I; deduced high-spin levels, J, π, alignments, configurations. Comparison with previous experimental values.

doi: 10.1103/PhysRevC.98.044315
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2017DO12      Phys.Rev. C 96, 051304 (2017)

M.Doncel, T.Back, C.Qi, D.M.Cullen, D.Hodge, B.Cederwall, M.J.Taylor, M.Procter, M.Giles, K.Auranen, T.Grahn, P.T.Greenlees, U.Jakobsson, R.Julin, S.Juutinen, A.Herzan, J.Konki, J.Pakarinen, J.Partanen, P.Peura, P.Rahkila, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, J.Sorri, S.Stolze, J.Uusitalo

Spin-dependent evolution of collectivity in ¹¹²Te

NUCLEAR REACTIONS ⁵⁸Ni(⁵⁸Ni, 4p), E not given; measured Eγ, Iγ, γγ-coin, level half-lives by recoil distance Doppler-shift (RDDS) method using Jurogam II detector array, RITU gas-filled recoil separator, and differential plunger for unbound nuclear states (DPUNS) at the Cyclotron Accelerator Laboratory of University of Jyvaskyla. ¹¹²Te; deduced levels, J, π, B(E2) for the first 2+, 4+ and 6+ states, E(4+)/E(2+), E(6+)/E(2+) ratios; calculated potential-energy surfaces. Comparison with shell-model calculations. Systematics of B(E2) for the first 2+, 4+ and 6+ states in ^{112,114,118,120,122,124}Te.

doi: 10.1103/PhysRevC.96.051304
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2016HO16      Phys.Rev. C 94, 034321 (2016)

D.Hodge, D.M.Cullen, M.J.Taylor, B.S.Nara Singh, L.S.Ferreira, E.Maglione, J.F.Smith, C.Scholey, P.Rahkila, T.Grahn, T.Braunroth, H.Badran, L.Capponi, A.Girka, P.T.Greenlees, R.Julin, J.Konki, M.Mallaburn, O.Nefodov, G.G.O'Neill, J.Pakarinen, P.Papadakis, J.Partanen, P.Ruotsalainen, M.Sandzelius, J.Saren, M.Smolen, J.Sorri, S.Stolze, J.Uusitalo

Deformation of the proton emitter ¹¹³CS from electromagnetic transition and proton-emission rates

NUCLEAR REACTIONS ⁵⁸Ni(⁵⁸Ni, 2np), E=230 MeV; measured Eγ, Iγ, proton-tagged γ spectra, Ep, Ip, half-life of ¹¹³Cs proton decay, level half-lives by recoil-decay-tagged differential-plunger combined with differential decay curve method (DDCM) using RITU separator, JUROGAM-II array and GREAT spectrometer at Jyvaskyla K130 cyclotron facility. Recoil-decay tagging method. ¹¹³Cs; deduced levels, J, B(E2), deformation of the proton-emitting ground state. Nonadiabatic quasiparticle model calculations.

doi: 10.1103/PhysRevC.94.034321
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2016PA28      Phys.Rev. C 94, 014307 (2016)

E.Parr, J.F.Smith, P.T.Greenlees, M.Smolen, P.Papadakis, K.Auranen, R.Chapman, D.M.Cullen, T.Grahn, L.Grocutt, A.Herzan, R.-D.Herzberg, D.Hodge, U.Jakobsson, R.Julin, S.Juutinen, J.Konki, M.Leino, C.McPeake, D.Mengoni, A.K.Mistry, K.F.Mulholland, G.G.O'Neill, J.Pakarinen, J.Partanen, P.Peura, P.Rahkila, P.Ruotsalainen, M.Sandzelius, J.Saren, M.Scheck, C.Scholey, J.Sorri, S.Stolze, M.J.Taylor, J.Uusitalo

Identification of the J^π = 1^- state in ²¹⁸Ra populated via α decay of ²²²Th

RADIOACTIVITY ²²²Th(α)[from ²⁰⁸Pb(¹⁸O, 4n), E=95 MeV using RITU separator at Jyvaskyla accelerator facility]; measured Eγ, Iγ, Eα, Iα, x rays, αγ-coin, (recoil)α and (recoil)αα correlations, half-life of ²²²Th decay using two double-sided silicon-strip detectors (DSSDs) for particles and HPGe clover detectors for γ rays. ²¹⁸Ra; deduced levels, J, π, 1- state, α branching ratios, α hindrance factors. ²¹³Rn, ²¹⁹Ra, ²²¹Th(α); observed αγ-coin. Systematics of level energies and α hindrance factors for 1- and 3- states in ^218,220,222Rn, ^{218,220,222,224,226,228}Ra, ^{224,226,228,230,232}Th. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.94.014307
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2015DO04      Phys.Rev. C 91, 061304 (2015)

M.Doncel, T.Back, D.M.Cullen, D.Hodge, C.Qi, B.Cederwall, M.J.Taylor, M.Procter, K.Auranen, T.Grahn, P.T.Greenlees, U.Jakobsson, R.Julin, S.Juutinen, A.Herzan, J.Konki, M.Leino, J.Pakarinen, J.Partanen, P.Peura, P.Rahkila, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, J.Sorri, S.Stolze, J.Uusitalo

Lifetime measurement of the first excited 2⁺ state in ¹¹²Te

NUCLEAR REACTIONS ⁵⁸Ni(⁵⁸Ni, 4p), E=250 MeV; measured Eγ, Iγ, γγ-coin, half-life of the first 2+ state by RDDS method using RITU gas-filled recoil separator, and Differential Plunger DPUNS, Jurogam II array at JYFL accelerator facility. ¹¹²Te; deduced level, B(E2) for the first 2+ state. Comparison with shell-model calculations. Systematics of experimental and theoretical values of B(E2) for first 2+ states in ^{104,106,108,110,112,114,116,118,120,122,124,126,128,130,132}Te.

doi: 10.1103/PhysRevC.91.061304
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2015HO14      Phys.Rev. C 92, 054312 (2015)

D.Hodge, D.M.Cullen, M.J.Taylor, M.G.Procter, P.Nieminen, T.Grahn, P.T.Greenlees, K.Hauschild, A.Herzan, U.Jakobsson, P.Jones, R.Julin, S.Juutinen, S.Ketelhut, M.Leino, A.Lopez-Martens, J.Partanen, P.Peura, P.Rahkila, S.Rinta-Antila, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, J.Sorri, S.Stolze, J.Uusitalo

Identification of a dipole band above the I^π = 31/2^- isomeric state in ¹⁸⁹Pb

NUCLEAR REACTIONS ¹⁰⁶Pd(⁸⁶Kr, 3n), ¹⁰⁶Pd(⁸⁶Kr, 2np), E=355 MeV; measured Eγ, Iγ, γγ, x rays, recoil-isomer-tagged prompt γγ-coin and prompt-delayed and delayed-delayed γγ-coin, angular intensity ratios using RITU separator, GREAT spectrometer and JUROGAM-II array at Jyvaskyla. ¹⁸⁹Pb, ¹⁸⁹Tl; deduced high-spin levels, J, π, isomer, dipole band, conversion coefficients, multipolarities, configuration, and alignments. Systematics of dipole bands in ^{189,191,193,195,197,199}Pb, and differences in the proton/neutron-hole interaction.

doi: 10.1103/PhysRevC.92.054312
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