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NSR database version of April 26, 2024.

Search: Author = R.Vondrasek

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2022RU06      Phys.Rev. C 106, 034318 (2022)

J.Rufino, Jr., E.A.McCutchan, S.Zhu, A.A.Sonzogni, M.Alcorta, P.F.Bertone, M.P.Carpenter, J.Clark, C.R.Hoffman, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, C.J.Lister, R.Pardo, A.Rogers, G.Savard, D.Seweryniak, R.Vondrasek

β decay of ¹⁴¹Ba

RADIOACTIVITY ¹⁴¹Ba(β^-)[from β^- decay of ¹⁴¹Cs beam produced as fission fragment in ²⁵²Cf(SF) at the CARIBU-ANL facility]; measured Eγ, Iγ, γγ-coin, γγ(θ) using the GAMMASPHERE array with 99 Compton-suppressed HPGe detectors. ¹⁴¹La; deduced levels, J, π, multipolarities, multipole mixing ratios, β feedings, logft. Comparison with previous experimental results, including total absorption gamma-spectra (TAGS) data, and with evaluated data in the ENSDF database. Relevance to decay heat in reactors, and reactor antineutrino spectrum. Decay-scheme figure is given in the Supplemental material of the paper.

doi: 10.1103/PhysRevC.106.034318
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2019PA57      Nucl.Instrum.Methods Phys.Res. B438, 172 (2019)

R.C.Pardo, T.Palchan-Hazan, R.Scott, M.Paul, O.Nusair, W.Bauder, R.Vondrasek, D.Seweryniak, S.Baker, R.Talwar, P.Collon, F.G.Kondev, G.Youinou, M.Salvatores, G.Palmiotti, J.Berg, J.Giglio, M.T.Giglio, G.Imel, C.Nair, C.L.Jiang

Laser Ablation Positive-Ion AMS of Neutron Activated Actinides

NUCLEAR REACTIONS ²³⁶U, ²⁴²Pu(n, X), E not given; measured reaction products; deduced neutron transmutation rates by accelerator mass spectrometry.

doi: 10.1016/j.nimb.2018.05.004
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2018TE04      Phys.Rev.Lett. 121, 112701 (2018)

M.Tessler, M.Paul, S.Halfon, B.S.Meyer, R.Pardo, R.Purtschert, K.E.Rehm, R.Scott, M.Weigand, L.Weissman, S.Almaraz-Calderon, M.L.Avila, D.Baggenstos, P.Collon, N.Hazenshprung, Y.Kashiv, D.Kijel, A.Kreisel, R.Reifarth, D.Santiago-Gonzalez, A.Shor, I.Silverman, R.Talwar, D.Veltum, R.Vondrasek

Stellar ^{36, 38}Ar(n, γ)^{37, 39}Ar Reactions and Their Effect on Light Neutron-Rich Nuclide Synthesis

NUCLEAR REACTIONS ^36,38Ar(n, γ), E ∼ 30 keV; measured reaction products, Eβ, Iβ; deduced thermal σ, Maxwellian average cross sections (MACS). Comparison with available data.

doi: 10.1103/PhysRevLett.121.112701
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2017BU07      Phys.Rev.Lett. 118, 152504 (2017)

B.Bucher, S.Zhu, C.Y.Wu, R.V.F.Janssens, R.N.Bernard, L.M.Robledo, T.R.Rodriguez, D.Cline, A.B.Hayes, A.D.Ayangeakaa, M.Q.Buckner, C.M.Campbell, M.P.Carpenter, J.A.Clark, H.L.Crawford, H.M.David, C.Dickerson, J.Harker, C.R.Hoffman, B.P.Kay, F.G.Kondev, T.Lauritsen, A.O.Macchiavelli, R.C.Pardo, G.Savard, D.Seweryniak, R.Vondrasek

Direct Evidence for Octupole Deformation in ¹⁴⁶Ba and the Origin of Large E1 Moment Variations in Reflection-Asymmetric Nuclei

NUCLEAR REACTIONS ²⁰⁸Pb(¹⁴⁶Ba, ¹⁴⁶Ba'), E=659 MeV; measured reaction products, Eγ, Iγ. ^144,146,148Ba; deduced energy levels, J, π, B(Eλ), quadrupole and octupole deformation parameters. Calculated HFB potential energy surfaces, neutron single-particle energies. Coulomb excitation, comparison with available data.

doi: 10.1103/PhysRevLett.118.152504
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Data from this article have been entered in the XUNDL database. For more information, click here.

2017DO01      Phys.Lett. B 766, 334 (2017)

D.T.Doherty, J.M.Allmond, R.V.F.Janssens, W.Korten, S.Zhu, M.Zielinska, D.C.Radford, A.D.Ayangeakaa, B.Bucher, J.C.Batchelder, C.W.Beausang, C.Campbell, M.P.Carpenter, D.Cline, H.L.Crawford, H.M.David, J.P.Delaroche, C.Dickerson, P.Fallon, A.Galindo-Uribarri, F.G.Kondev, J.L.Harker, A.B.Hayes, M.Hendricks, P.Humby, M.Girod, C.J.Gross, M.Klintefjord, K.Kolos, G.J.Lane, T.Lauritsen, J.Libert, A.O.Macchiavelli, P.J.Napiorkowski, E.Padilla-Rodal, R.C.Pardo, W.Reviol, D.G.Sarantites, G.Savard, D.Seweryniak, J.Srebrny, R.Varner, R.Vondrasek, A.Wiens, E.Wilson, J.L.Wood, C.Y.Wu

Triaxiality near the ¹¹⁰Ru ground state from Coulomb excitation

NUCLEAR REACTIONS ²⁰⁸Pb(¹¹⁰Ru, ¹¹⁰Ru'), E=430 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energy spectrum, B(E2) using GOSIA fit of the experimental data, level scheme, J, π, triaxial deformation. Comparison with available data.

doi: 10.1016/j.physletb.2017.01.031
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Data from this article have been entered in the XUNDL database. For more information, click here.

2016BU02      Phys.Rev.Lett. 116, 112503 (2016)

B.Bucher, S.Zhu, C.Y.Wu, R.V.F.Janssens, D.Cline, A.B.Hayes, M.Albers, A.D.Ayangeakaa, P.A.Butler, C.M.Campbell, M.P.Carpenter, C.J.Chiara, J.A.Clark, H.L.Crawford, M.Cromaz, H.M.David, C.Dickerson, E.T.Gregor, J.Harker, C.R.Hoffman, B.P.Kay, F.G.Kondev, A.Korichi, T.Lauritsen, A.O.Macchiavelli, R.C.Pardo, A.Richard, M.A.Riley, G.Savard, M.Scheck, D.Seweryniak, M.K.Smith, R.Vondrasek, A.Wiens

Direct Evidence of Octupole Deformation in Neutron-Rich ¹⁴⁴Ba

NUCLEAR REACTIONS ²⁰⁸Pb(¹⁴⁴Ba, ¹⁴⁴Ba'), E=650 MeV; measured reaction products, Eγ, Iγ. ¹⁴⁴Ba; deduced yields, E2 and E3 matrix elements, quadrupole moments, deformation parameters, B(E2), B(E3). Comparison with theoretical calculations.

doi: 10.1103/PhysRevLett.116.112503
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Data from this article have been entered in the XUNDL database. For more information, click here.

2016MU05      Phys.Rev. C 93, 065502 (2016)

H.P.Mumm, M.G.Huber, W.Bauder, N.Abrams, C.M.Deibel, C.R.Huffer, P.R.Huffman, K.W.Schelhammer, R.Janssens, C.L.Jiang, R.H.Scott, R.C.Pardo, K.E.Rehm, R.Vondrasek, C.M.Swank, C.M.O'Shaughnessy, M.Paul, L.Yang

High-sensitivity measurement of ³He - ⁴He isotopic ratios for ultracold neutron experiments

ATOMIC MASSES ^3,4He; measured absolute isotopic ratio of ³He to ⁴He with a high sensitivity at ATLAS-ANL facility. Relevance to neutron half-life measurements using ultra-cold neutrons.

doi: 10.1103/PhysRevC.93.065502
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2014YO05      Nucl.Data Sheets 119, 169 (2014)

G.Youinou, R.Vondrasek, H.Veselka, M.Salvatores, M.Paul, R.Pardo, G.Palmiotti, T.Palchan, O.Nusair, J.Nimmagadda, C.Nair, P.Murray, T.Maddock, S.Kondrashev, F.G.Kondev, W.Jones, G.Imel, C.Glass, J.Fonnesbeck, J.Berg, W.Bauder

MANTRA: An Integral Reactor Physics Experiment to Infer the Neutron Capture Cross Sections of Actinides and Fission Products in Fast and Epithermal Spectra

doi: 10.1016/j.nds.2014.08.047
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2012KI16      Science 335, 1614 (2012)

N.Kinoshita, M.Paul, Y.Kashiv, P.Collon, C.M.Deibel, B.DiGiovine, J.P.Greene, D.J.Henderson, C.L.Jiang, S.T.Marley, T.Nakanishi, R.C.Pardo, K.E.Rehm, D.Robertson, R.Scott, C.Schmitt, X.D.Tang, R.Vondrasek, A.Yokoyama

A Shorter ¹⁴⁶Sm Half-Life Measured and Implications for ¹⁴⁶Sm-¹⁴²Nd Chronology in the Solar System

RADIOACTIVITY ¹⁴⁶Sm(α); measured decay products, Eα, Iα; deduced T_1/2 and its uncertainty and ¹⁴⁶Sm/¹⁴⁴Sm ratio. ¹⁴⁶Sm - ¹⁴²Nd clock, comparison with available data.

doi: 10.1126/science.1215510
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2011SA71      Hyperfine Interactions 199, 301 (2011)

G.Savard, R.C.Pardo, S.Baker, C.N.Davids, A.Levand, D.Peterson, D.G.Phillips, T.Sun, R.Vondrasek, B.J.Zabransky, G.P.Zinkann

CARIBU: a new facility for the study of neutron-rich isotopes

doi: 10.1007/s10751-011-0325-5
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2009QI04      Phys.Rev. C 79, 064319 (2009)

J.Qian, A.Heinz, T.L.Khoo, R.V.F.Janssens, D.Peterson, D.Seweryniak, I.Ahmad, M.Asai, B.B.Back, M.P.Carpenter, A.B.Garnsworthy, J.P.Greene, A.A.Hecht, C.L.Jiang, F.G.Kondev, T.Lauritsen, C.J.Lister, A.Robinson, G.Savard, R.Scott, R.Vondrasek, X.Wang, R.Winkler, S.Zhu

Spectroscopy of ²⁵⁷Rf

NUCLEAR REACTIONS ²⁰⁸Pb(⁵⁰Ti, n), E=233 MeV; measured Eα, Iα, ce, fission events correlated with evaporation residues, Eγ, Iγ, (ce)α-, (ce)γ-coin, isomer half-lives, (evaporation residues)-ce-α-α correlations. ²⁵⁷Rf; deduced levels, J, π, configurations. ²⁵⁷Rf; calculated excitation energies of 1-qp states and rotational bands built on 1-qp and 3-qp bandheads. A=245-257, odd-A Pu, Cm, Cf, Fm, No, Rf; Nilsson orbital systematics.

RADIOACTIVITY ²⁵⁷Rf(α)(EC)(SF), ^257mRf(α)(EC), ²⁵⁷Lr(α), ²⁵⁶Rf(SF), ²⁵³No(α)(EC); measured Eα, Iα, Eγ, fission events, (ce)α-coin, half-lives, and fission branching ratios. ²⁵³No; deduced levels, J, π, α hindrance factors, and configurations.

doi: 10.1103/PhysRevC.79.064319
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Data from this article have been entered in the XUNDL database. For more information, click here.

2008KI05      J.Phys.(London) G35, 014033 (2008)

N.Kinoshita, T.Hashimoto, T.Nakanishi, A.Yokoyama, H.Amakawa, T.Mitsugashira, T.Ohtsuki, N.Takahashi, I.Ahmad, J.P.Greene, D.J.Henderson, C.L.Jiang, M.Notani, R.C.Pardo, N.Patel, K.E.Rehm, R.Scott, R.Vondrasek, L.Jisonna, P.Collon, D.Robertson, C.Schmitt, X.D.Tang, Y.Kashiv, H.Nassar, M.Paul

Ultra-sensitive detection of p-process nuclide ¹⁴⁶Sm produced by (γ, n), (p, 2nε) and (n, 2n) reactions

doi: 10.1088/0954-3899/35/1/014033
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2007HA49      J.Nucl.Radiochem.Sci. 8, 109 (2007)

T.Hashimoto, T.Nakanishi, A.Yokoyama, H.Amakawa, T.Mitsugashira, T.Ohtsuki, N.Takahashi, I.Ahmad, J.P.Greene, D.J.Henderson, C.L.Jiang, M.Notani, R.C.Pardo, N.Patel, K.E.Rehm, R.Scott, R.Vondrasek, L.Jisonna, P.Collon, D.Robertson, C.Schmitt, X.D.Tang, Y.Kashiv, M.Paul

Technological Development for Half-life Measurement of ¹⁴⁶Sm Nuclide

NUCLEAR REACTIONS ¹⁴⁷Sm(γ, n), E < 50 MeV; ¹⁴⁷Sm(n, 2n), E=6-10 MeV; ¹⁴⁷Sm(p, 2n), E=21 MeV; measured Eα, Iα.

2006NA02      Phys.Rev.Lett. 96, 041102 (2006)

H.Nassar, M.Paul, I.Ahmad, Y.Ben-Dov, J.Caggiano, S.Ghelberg, S.Goriely, J.P.Greene, M.Hass, A.Heger, A.Heinz, D.J.Henderson, R.V.F.Janssens, C.L.Jiang, Y.Kashiv, B.S.Nara Singh, A.Ofan, R.C.Pardo, T.Pennington, K.E.Rehm, G.Savard, R.Scott, R.Vondrasek

⁴⁰Ca(α, γ)⁴⁴Ti Reaction in the Energy Regime of Supernova Nucleosynthesis

NUCLEAR REACTIONS ⁴He(⁴⁰Ca, γ), E(cm) ≈ 0.6-1.2 MeV/nucleon; measured yield. ⁴⁰Ca(α, γ), E=low; deduced astrophysical reaction rate. Accelerator mass spectrometry.

doi: 10.1103/PhysRevLett.96.041102
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1406.

2005NA08      Phys.Rev.Lett. 94, 092504 (2005)

H.Nassar, M.Paul, I.Ahmad, D.Berkovits, M.Bettan, P.Collon, S.Dababneh, S.Ghelberg, J.P.Greene, A.Heger, M.Heil, D.J.Henderson, C.L.Jiang, F.Kappeler, H.Koivisto, S.O'Brien, R.C.Pardo, N.Patronis, T.Pennington, R.Plag, K.E.Rehm, R.Reifarth, R.Scott, S.Sinha, X.Tang, R.Vondrasek

Stellar (n, γ) Cross Section of ⁶²Ni

NUCLEAR REACTIONS ⁶²Ni(n, γ), E=spectrum; measured total σ. Fast-neutron activation, accelerator mass spectrometry. Astrophysical implications discussed.

doi: 10.1103/PhysRevLett.94.092504
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22959.

2004NA39      Nucl.Phys. A746, 613c (2004)

H.Nassar, S.Ghelberg, M.Paul, S.Dababneh, M.Heil, F.Kappeler, R.Plag, I.Ahmad, J.P.Greene, D.J.Henderson, C.L.Jiang, R.C.Pardo, T.Pennington, K.E.Rehm, R.Scott, S.Sinha, X.Tang, R.Vondrasek, H.Koivisto, D.Berkovits, M.Bettan, R.Reifarth, P.Collon, S.O'Brien, N.Patronis

Production and isobaric separation of ⁶³Ni ions for determination of the ⁶²Ni(n, γ)⁶³Ni reaction cross section at stellar temperatures

NUCLEAR REACTIONS ⁶²Ni(n, γ), E=fast; measured yields.

doi: 10.1016/j.nuclphysa.2004.09.140
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2003PA34      Nucl.Phys. A718, 239c (2003)

M.Paul, C.Feldstein, I.Ahmad, D.Berkovits, C.Bordeanu, J.Caggiano, S.Ghelberg, J.Goerres, J.Greene, M.Hass, A.Heinz, D.Henderson, S.K.Hui, R.V.F.Janssens, C.L.Jiang, S.Jiang, Y.Nirel, R.C.Pardo, T.Pennington, K.E.Rehm, G.Savard, G.Verri, R.Vondrasek, I.Wiedenhover, M.Wiescher

Counting ⁴⁴Ti Nuclei from the ⁴⁰Ca(α, γ)⁴⁴Ti Reaction

NUCLEAR REACTIONS ⁴He(⁴⁰Ca, X)⁴⁴Ti, E=70.9 MeV; measured yield. ⁴⁴Ti deduced resonance strength. Chemical separation, accelerator mass spectrometry.

doi: 10.1016/S0375-9474(03)00720-6
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC0966.

2002LA02      Phys.Rev.Lett. 88, 042501 (2002)

T.Lauritsen, M.P.Carpenter, T.Dossing, P.Fallon, B.Herskind, R.V.F.Janssens, D.G.Jenkins, T.L.Khoo, F.G.Kondev, A.Lopez-Martens, A.O.Macchiavelli, D.Ward, K.S.Abu Saleem, I.Ahmad, R.Clark, M.Cromaz, J.P.Greene, F.Hannachi, A.M.Heinz, A.Korichi, G.Lane, C.J.Lister, P.Reiter, D.Seweryniak, S.Siem, R.C.Vondrasek, I.Wiedenhover

Direct Decay from the Superdeformed Band to the Yrast Line in ₆₆¹⁵²Dy₈₆

NUCLEAR REACTIONS ⁷⁶Ge(⁸⁰Se, 4n), E=311 MeV; ¹⁰⁸Pd(⁴⁸Ca, 4n), E=191 MeV; measured Eγ, Iγ, γγ-coin. ¹⁵²Dy deduced superdeformed levels J, π, linking transitions. Gammasphere array.

doi: 10.1103/PhysRevLett.88.042501
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Note: The following list of authors and aliases matches the search parameter R.Vondrasek: , R.C.VONDRASEK