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NSR database version of April 11, 2024.

Search: Author = L.A.Bernstein

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2024GO02      Nucl.Instrum.Methods Phys.Res. A1061, 169120 (2024)

J.M.Gordon, J.C.Batchelder, L.A.Bernstein, D.L.Bleuel, C.A.Brand, J.A.Brown, B.L.Goldblum, B.G.Frandsen, T.A.Laplace, T.Nagel

GENESIS: Gamma Energy Neutron Energy Spectrometer for Inelastic Scattering

NUCLEAR REACTIONS 56Fe(n, p), (n, n'), E not given; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, the operating characteristics and capabilities of the array. A new spectrometer, GENESIS, was constructed at the 88-Inch Cyclotron at Lawrence Berkeley National Laboratory.

doi: 10.1016/j.nima.2024.169120
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2023BU09      Phys.Rev. C 108, 024609 (2023)

N.Burahmah, J.R.Griswold, L.H.Heilbronn, L.A.Bernstein, A.S.Voyles, J.T.Morrell, M.Zach, R.Copping

229Pa cross section measurements via deuteron irradiation of 232Th

NUCLEAR REACTIONS 232Th(d, n)233Pa, 232Th(d, 2n)232Pa, 232Th(d, 4n)230, Pa232Th(d, 5n)229Pa, 232Th(d, 6n)228Pa, E=31.0, 35.2, 41.4, 49.6 MeV; measured Eγ, Iγ; deduced σ(E). Comparison other experimental data and to the calculations made with TALYS-1.9, EMPIRE-3.2.3, CoH-3.5.4, PHITS-3.1 and ALICE-2020 codes. Irradiation took place at the Lawrence Berkeley National Laboratory 88-Inch Cyclotron. Isotope of Pa in the irradiated target was chemically separated and activity was measured with HPGe coaxial detector at Oak Ridge National Laboratory.

doi: 10.1103/PhysRevC.108.024609
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2023LE14      Eur.Phys.J. N 9, 33 (2023)

A.M.Lewis, D.Neudecker, A.D.Carlson, D.L.Smith, I.Thompson, A.Wallner, D.P.Barry, L.A.Bernstein, R.C.Block, S.Croft, Y.Danon, M.Drosg, R.C.Haight, M.W.Herman, H.Y.Lee, N.Otuka, H.Sjostrand, V.Sobes

Templates of expected measurement uncertainties for neutron-induced capture and charged-particle production cross section observables

doi: 10.1051/epjn/2023015
Citations: PlumX Metrics


2023MO19      Phys.Rev. C 108, 024616 (2023)

J.T.Morrell, A.S.Voyles, J.C.Batchelder, J.A.Brown, L.A.Bernstein

Secondary neutron production from thick target deuteron breakup

NUCLEAR REACTIONS Be(d, n), E=33, 40 MeV; measured neutron time-of-flight, En, In, Eγ, Iγ; deduced neutron yields, angular distributions, neutron spectra. Zn, Ti(d, n), E=33, 40 MeV; measured neutron time-of-flight, En, In, Eγ, Iγ; deduced isotopes production yields for 64Cu, 67Cu, 44Sc, 47Sc. 9Be, Li, Cu, C(d, n), E<60 MeV; calculated total neutron producing σ(E), deuteron breakup, compound (evaporation) and preequilibrium components of neutron producing σ(E), energy and angle distributions of the outgoing neutrons from the deuteron breakup component, deuteron transmission factor in the thick target, neutron yields from thick target. Activation experiment at Lawrence Berkeley National Laboratory's 88-Inch Cyclotron.

doi: 10.1103/PhysRevC.108.024616
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2022BL06      Appl.Radiat.Isot. 190, 110509 (2022)

D.L.Bleuel, S.G.Anderson, L.A.Bernstein, J.A.Brown, J.A.Caggiano, B.L.Goldblum, J.M.Gordon, J.M.Hall, K.P.Harrig, M.S.Johnson, T.A.Laplace, R.A.Marsh, M.E.Montague, A.Ratkiewicz, B.Rusnak, C.A.Velsko

The 40Ar(d, p)41Ar cross section between 3-7 MeV

NUCLEAR REACTIONS 40Ar(d, p), E=3.6, 5.5, 7 MeV; measured reaction products, Eγ, Iγ; deduced σ. Comparison with available data, TALYS calculations. Lawrence Berkeley National Laboratory's 88-Inch Cyclotron.

doi: 10.1016/j.apradiso.2022.110509
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2022KO12      Phys. Rev. Res. 4, 021001 (2022)

K.Kolos, V.Sobes, R.Vogt, C.E.Romano, M.S.Smith, L.A.Bernstein, D.A.Brown, M.T.Burkey, Y.Danon, M.A.Elsawi, B.L.Goldblum, L.H.Heilbronn, S.L.Hogle, J.Hutchinson, B.Loer, E.A.McCutchan, M.R.Mumpower, E.M.O'Brien, C.Percher, P.N.Peplowski, J.J.Ressler, N.Schunck, N.W.Thompson, A.S.Voyles, W.Wieselquist, M.Zerkle

Current nuclear data needs for applications

doi: 10.1103/PhysRevResearch.4.021001
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2022UD01      Molecules 27, 768 (2022)

M.S.Uddin, S.M.Qaim, B.Scholten, M.S.Basunia, L.A.Bernstein, I.Spahn, B.Neumaier

Positron Emission Intensity in the Decay of 86gY for Use in Dosimetry Studies

RADIOACTIVITY 86Y(β+), (EC); measured decay products, Eγ, Iγ, X-rays; deduced γ-ray energies, positron emission and electron capture intensities. PET nuclide. Comparison with available data.

doi: 10.3390/molecules27030768
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2022UD02      Eur.Phys.J. A 58, 67 (2022)

M.S.Uddin, M.S.Basunia, S.Sudar, B.Scholten, S.Spellerberg, A.S.Voyles, J.T.Morrell, M.B.Fox, I.Spahn, O.Felden, R.Gebel, L.A.Bernstein, B.Neumaier, S.M.Qaim

Excitation functions of proton-induced nuclear reactions on 86Sr, with particular emphasis on the formation of isomeric states in 86Y and 85Y

NUCLEAR REACTIONS 86Sr(p, X)86Y/85Y/84Rb/83Rb, E<44 MeV; measured reaction products, Eγ, Iγ; deduced ground and isomeric state σ and uncertainties. Comparison with TALYS nuclear model calculations. BC 1710 cyclotron at FZJ, Germany, 88-Inch Cyclotron, Lawrence Berkeley National Laboratory (LBNL), USA, the Julich Isochronous Cyclotron (JULIC) at FZJ, Germany.

doi: 10.1140/epja/s10050-022-00714-w
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2022UD03      Radiochim.Acta 111, 81 (2022)

M.S.Uddin, M.S.Basunia, I.Spahn, S.Spellerberg, R.Khan, M.M.Uddin, L.A.Bernstein, B.Neumaier, S.M.Qaim

Cross sections and calculated yields of some radionuclides of yttrium, strontium and rubidium formed in proton-induced reactions on enriched strontium-86: possibility of production of 85gSr, 83Rb and 82mRb in no-carrier-added form

NUCLEAR REACTIONS 86Sr(p, 3n)84mY, 86Sr(p, nα)82mRb, 86Sr(p, x)85gSr, E<44.1 MeV; Sr(n, γ)85gSr, E thermal; measured reaction products, Eγ, Iγ; deduced σ. Comparison with TALYS calculations. BC1710, JULIC a FZJ, and 88-Inch LBNL cyclotrons, the TRIGA Mark-II reactor at AERE, Savar.

doi: 10.1515/ract-2022-0086
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2021BL04      Appl.Radiat.Isot. 170, 109625 (2021)

D.L.Bleuel, L.A.Bernstein, R.A.Marsh, J.T.Morrell, B.Rusnak, A.S.Voyles

Precision measurement of relative γ-ray intensities from the decay of 61Cu

NUCLEAR REACTIONS Ni(d, X)61Cu, E<31 MeV; Cu(p, X)61Cu, E<57 MEV; measured reaction products, Eγ, Iγ; deduced impact on the IAEA-recommended beam monitor σ.

RADIOACTIVITY 61Cu(EC); measured decay products, Eγ, Iγ; deduced γ-ray energies and intensities. Comparison with ENSDF/NDS values.

doi: 10.1016/j.apradiso.2021.109625
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2021CH12      Appl.Radiat.Isot. 171, 109647 (2021)

R.K.Chapman, A.S.Voyles, N.Gharibyan, L.A.Bernstein, J.E.Bevins

Measurement of the 160Gd(p, n)160Tb excitation function from 4-18 MeV using stacked-target activation

NUCLEAR REACTIONS 160Gd(p, n), E=4-18 MeV; measured reaction products, Eγ, Iγ; deduced σ and uncertainties. Comparison with EMPIRE-3.2.3, TALYS-1.9, CoH-3.5.3, ALICE-2017 calculations.

doi: 10.1016/j.apradiso.2021.109647
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2692.


2021FO05      Phys.Rev. C 103, 034601 (2021)

M.B.Fox, A.S.Voyles, J.T.Morrell, L.A.Bernstein, A.M.Lewis, A.J.Koning, J.C.Batchelder, E.R.Birnbaum, C.S.Cutler, D.G.Medvedev, F.M.Nortier, E.M.O'Brien, C.Vermeulen

Investigating high-energy proton-induced reactions on spherical nuclei: Implications for the preequilibrium exciton model

NUCLEAR REACTIONS 93Nb(p, X)72Se/73As/74As/75Se/81Rb/82mRb/83Rb/83Sr/84Rb/85mY/86Rb/86Y/86Zr/87Y/87mY/88Y/88Zr/89Zr/90Nb/90Mo/91mNb/92mNb/93mNb, E=192.38, 177.11, 163.31, 148.66, 133.87, 119.8, 104.2, 91.21, 79.32, 72.52, 67.14, 63.06, 60.08, 57.47, 55.58, 53.62, 51.61 MeV; 93Nb(p, 4n)90Mo, (p, 3np)90Nb, (p, nα)89Zr, (p, 3n2p)89Zr, (p, 3npα)86Y, (p, 2α)88Zr, (p, n)93mMo, (p, np)92mNb, (p, 3nα)87Zr, (p, npα)88Y, (p, 4nα)86Zr, (p, 4np)89Nb, (p, 2npα)87Y, (p, np2α)84Rb, E=25-200 MeV; 139La(p, 5n)135Ce, (p, 6n)134Ce, (p, 4np)135La, (p, 7n)133mCe, (p, 3nα)133Ba/133mBa, (p, 3n)137Ce/137mCe, (p, n)139Ce, (p, 8n)132Ce, (p, 6np)133La, (p, 3npα)132Cs, (p, 5nα)131Ba, E=20-100 MeV; measured Eγ, Iγ, σ(E) by activation method in a Tri-lab collaboration among the Lawrence Berkeley, Los Alamos, and Brookhaven National Laboratories. Comparison with literature data, and with calculations of the nuclear model codes: TALYS, CoH, EMPIRE, and ALICE; deduced best parametrization for the preequilibrium two-component exciton model.

doi: 10.1103/PhysRevC.103.034601
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2631.


2021FO13      Phys.Rev. C 104, 064615 (2021)

M.B.Fox, A.S.Voyles, J.T.Morrell, L.A.Bernstein, J.C.Batchelder, E.R.Birnbaum, C.S.Cutler, A.J.Koning, A.M.Lewis, D.G.Medvedev, F.M.Nortier, E.M.O'Brien, Ch.Vermeulen

Measurement and modeling of proton-induced reactions on arsenic from 35 to 200 MeV

NUCLEAR REACTIONS 75As(p, X)56Co/57Co/58Co/60Co/65Zn/69mZn/66Ga/67Ga/68Ga/72Ga/66Ge/68Ge/69Ge/70As/71As/72As/73As/74As/72Se/73Se/75Se, E=35-200 MeV; Cu(p, X)44mSc/46Sc/47Sc/48V/48Cr/49Cr/51Cr/52Mn/54Mn/56Mn/55Co/56Co/57Co/60Co/56Ni/57Ni/59Fe/60Cu/61Cu/64Cu/62Zn/63Zn/65Zn, E=35-200 MeV; Ti(p, X)42K/43K/43Sc/44Sc/44mSc/46Sc/47Sc/48Sc/44Ti/47Ca/48V, E=35-200 MeV; measured production σ(E) using stacked-target technique, and off-line γ-ray spectrometry, Eγ, Iγ at the LBNL 88-Inch Cyclotron for E(p)<55 MeV, at LANL, IPF for E(p)=50-100 MeV, and at BNL, BLIP for E(p)=100-200 MeV. 75As(p, 4n)72Se, (p, 3n)73Se, (p, 3np)72As, (p, X)56Co/57Co/58Co/60Co/65Zn/69mZn/66Ga/67Ga/68Ga/72Ga/66Ge/68Ge/69Ge/70As/71As/73As/74As/75Se, E=25-200 MeV; Ti(p, X)44Sc/44mSc, E=10-200 MeV; Ti(p, X)42K/43K/43Sc/44Sc/44mSc/46Sc/47Sc/48Sc/47Ca/44Ti/48V, E=25-200 MeV; Cu(p, X)44mSc/46Sc/47Sc/48V/48Cr/49Cr/51Cr/52Mn/54Mn/56Mn/55Co/56Co/57Co/60Co/56Ni/57Ni/59Fe/60Cu/61Cu/64Cu/62Zn/63Zn/65Zn, E=25-200 MeV; comparison of measured s(E) in the present work and previous experiments with theoretical cross sections using ALICE-20, CoH-3.5.3, EMPIRE-3.2.3, TALYS-1.95 and TENDL-2019. 75As(p, n)75Se, (p, np)74As, E<200 MeV; 75As(p, 3n)73Se, (p, 2np)73As, (p, 4n)72Se, (p, X)71As/69Ge/68Ga/67Ga, E=25-200; TALYS default and adjusted σ(E) calculations for residual products. 75As(p, 3np)72As, (p, X)72Ga/70As/65Zn/69mZn/68Ge/66Ge/66Ga/56Co/57Co/58Co/60Co, E=25-200 MeV; TALYS default and adjusted calculations extended to residual products not used in the parameter adjustment sensitivity studies. 68,71,73As, 72,73Se, 69Ge, 67,69Ga; adjusted level density scalings in global fitting procedure for residual products. Relevance to production cross sections for positron emission tomography (PET) generator system of 72Se/72As and 68Ge/68Ga.

doi: 10.1103/PhysRevC.104.064615
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2702.


2021GJ01      Phys.Rev. C 103, 034609 (2021)

D.Gjestvang, S.Siem, F.Zeiser, J.Randrup, R.Vogt, J.N.Wilson, F.Bello-Garrote, L.A.Bernstein, D.L.Bleuel, M.Guttormsen, A.Gorgen, A.C.Larsen, K.L.Malatji, E.F.Matthews, A.Oberstedt, S.Oberstedt, T.Tornyi, G.M.Tveten, A.S.Voyles

Excitation energy dependence of prompt fission γ-ray emission from 241Pu

NUCLEAR REACTIONS 240Pu(d, pF)241Pu*, E=13.5 MeV; measured outgoing protons using SiRi, a silicon ΔE-E detector, fission fragments using NIFF, consisting of four parallel plate avalanche counters (PPACs), prompt fission γ rays (PFG), (particle)γ-coin using Oslo Scintillator Array (OSCAR) of 30 LaBr3:Ce scintillators for γ radiation at the Oslo Cyclotron Laboratory; deduced average total PFG multiplicity per fission, average total PFG energy released per fission, and the average PFG energy in the excitation range of 5.75-8.25 MeV. Comparison with simulations using the fission model FREYA, with previous experimental results, and evaluation in ENDF/B-VIII.0.

doi: 10.1103/PhysRevC.103.034609
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23783.


2021HU05      Nucl.Instrum.Methods Phys.Res. A995, 165095 (2021)

A.M.Hurst, L.A.Bernstein, T.Kawano, A.M.Lewis, K.Song

The Baghdad Atlas: A relational database of inelastic neutron-scattering (n, n'γ) data

NUCLEAR REACTIONS 56Fe(n, n'γ), (n, p), B, 110Pd(n, n'γ), E<15 MeV; analyzed available data from Baghdad reactor; deduced σ and uncertainties. Comparison with COH3 calculations, ENDF/B-VIII.0 and EXFOR libraries.

doi: 10.1016/j.nima.2021.165095
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14521.


2021MA36      At.Data Nucl.Data Tables 140, 101441 (2021)

E.F.Matthews, L.A.Bernstein, W.Younes

Stochastically estimated covariance matrices for independent and cumulative fission yields in the ENDF/B-VIII.0 and JEFF-3.3 evaluations

doi: 10.1016/j.adt.2021.101441
Citations: PlumX Metrics


2021VO05      Eur.Phys.J. A 57, 94 (2021); Erratum Eur.Phys.J. A 57, 131 (2021)

A.S.Voyles, A.M.Lewis, J.T.Morrell, M.S.Basunia, L.A.Bernstein, J.W.Engle, S.A.Graves, E.F.Matthews

Proton-induced reactions on Fe, Cu, and Ti from threshold to 55 MeV

NUCLEAR REACTIONS Fe(p, X)48Cr/48V/49Cr/51Mn/51Cr/52Fe/52Mn/54Mn/55Co/56Mn/56Co/57Co/58Co, Cu(p, X)54Mn/57Ni/57Cu/60Co/60Cu/61Co/61Cu, Ti(p, X)43K/44Sc/47Sc/48Sc, E=4-55 MeV; measured reaction products, Eγ, Iγ; deduced independent and cumulative σ. Comparison with EMPIRE, CoH, and ALICE nuclear model code calculations.

doi: 10.1140/epja/s10050-021-00401-2
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2020BA30      Phys.Rev. C 101, 064619 (2020)

M.S.Basunia, J.T.Morrell, M.S.Uddin, A.S.Voyles, C.D.Nesaraja, L.A.Bernstein, E.Browne, M.J.Martin, S.M.Qaim

Resolution of a discrepancy in the γ-ray emission probability from the β decay of 137Ceg

RADIOACTIVITY 137Ce(β+), 137mCe(IT)[from 139La(p, 3n), E=57 MeV]; 85,85mY(β+), (EC)[from 86Sr(p, 2n), E=27 MeV]; 85Sr(IT); measured Eγ, Iγ at LBNL cyclotron facility; deduced emission probabilities for gamma rays with the ground and isomeric states in transient equilibrium and using the Bateman equations. Comparison with previous experimental values. Discussed discrepancies of gamma-ray emission probabilities in literature.

doi: 10.1103/PhysRevC.101.064619
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Data from this article have been entered in the XUNDL database. For more information, click here.


2020BE02      Nucl.Instrum.Methods Phys.Res. B468, 81 (2020)

K.V.Becker, E.Vermeulen, C.J.Kutyreff, E.M.O'Brien, J.T.Morrell, E.R.Birnbaum, L.A.Bernstein, F.M.Nortier, J.W.Engle

Cross section measurements for proton induced reactions on natural La

NUCLEAR REACTIONS La(p, X)22Na/24Na/56Co/58Co/65Zn/132Ce/133Ce/134Ce/135Ce/137Ce/139Ce/135La/131Ba/133Ba/132Cs, E < 100 MeV; measured reaction products, Eγ, Iγ; deduced σ. Comparison with TENDL 2017.

doi: 10.1016/j.nimb.2020.02.024
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2516.


2020KI22      J.Low Temp.Physics 199, 1055 (2020)

G.B.Kim, S.T.P.Boyd, R.H.Cantor, A.S.Voyles, J.T.Morrell, L.A.Bernstein, S.Friedrich

A New Measurement of the 60 keV Emission from Am-241 Using Metallic Magnetic Calorimeters

RADIOACTIVITY 241Am(α), 169Yb(EC) [from 169Tm(d, 2n), E<20 MeV]; measured decay products, Eγ, Iγ, X-rays; deduced γ-ray energies and intensities including errors.

doi: 10.1007/s10909-020-02412-7
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Data from this article have been entered in the XUNDL database. For more information, click here.


2020MO07      Eur.Phys.J. A 56, 13 (2020)

J.T.Morrell, A.S.Voyles, M.S.Basunia, J.C.Batchelder, E.F.Matthews, L.A.Bernstein

Measurement of 139La(p, x) cross sections from 35-60 MeV by stacked-target activation

doi: 10.1140/epja/s10050-019-00010-0
Citations: PlumX Metrics


2020NN01      Nucl.Sci.Eng. 194, 894 (2020)

N.Nnamani, K.Van Bibber, L.A.Bernstein, J.L.Vujic, J.T.Morrell, J.C.Batchelder, M.Ayllon

An Integral Experiment on Polyethylene Using Radiative Capture in Indium Foils in a High Flux D-D Neutron Generator

RADIOACTIVITY 115,116In(IT) [from 115In(n, n'), (n, γ), E=2.2-2.8 MeV]; measured decay products, Eγ, Iγ; deduced γ-ray energies and intensities including uncertainties.

NUCLEAR REACTIONS 115In(n, γ), C, H(n, n), E=2.2-2.8 MeV; measured reaction products, Eγ, Iγ; deduced σ. Comparison with ENDF/B-VII.1 library.

doi: 10.1080/00295639.2020.1769964
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2020UD01      Radiochim.Acta 108, 747 (2020)

M.S.Uddin, B.Scholten, M.S.Basunia, S.Sudar, S.Spellerberg, A.S.Voyles, J.T.Morrell, H.Zaneb, J.A.Rios, I.Spahn, L.A.Bernstein, B.Neumaier, S.M.Qaim

Accurate determination of production data of the non-standard positron emitter 86Y via the 86Sr(p, n)-reaction

NUCLEAR REACTIONS 86Sr(p, n)86Y, Cu(p, Xn)62Zn/63Zn/65Zn, Ti(p, X)48V, E=14.3-24.5 MeV; measured reaction products, Eγ, Iγ; deduced σ. Comparison with nuclear model calculation based on the code TALYS. Forschungszentrum Julich (FZJ), LBNL.

doi: 10.1515/ract-2020-0021
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2534.


2019BA16      Phys.Rev. C 99, 044612 (2019)

J.C.Batchelder, S.-A.Chong, J.Morrell, M.A.Unzueta, P.Adams, J.D.Bauer, T.Bailey, T.A.Becker, L.A.Bernstein, M.Fratoni, A.M.Hurst, J.James, A.M.Lewis, E.F.Matthews, M.Negus, D.Rutte, K.Song, K.Van Bibber, M.Wallace, C.S.Waltz

Possible evidence of nonstatistical properties in the 35Cl (n, p) 35S cross section

NUCLEAR REACTIONS 35Cl(n, p)35S, 35Cl(n, α)32P, E=2.74, 2.64, 2.58, 2.52, 2.42 MeV; measured β radiation and decay curves from the decay of 35S and 32P, and σ(E) using liquid scintillator counter at the Berkeley High Flux Neutron Generator (BHFNG) at the University of California. 58Ni(n, p)58Co and 115In(n, n')115mIn used as references. Comparison with data in evaluated libraries: ENDF/B-VIII.0, ENDF/B-VII.1, JEFF-3.2, JENDL-4.0, and ROSFOND-2010. 36Cl; deduced resonance, σ(E). 35Cl(n, p), E=1 eV-15 MeV; 35Cl(n, α), E=0-20 MeV; comparison of literature and present experimental σ(E) with nuclear data libraries; concluded that modeling of (n, X) cross sections for N=Z=20 shell gap nuclei requires a resolved resonance approach rather than a Hauser-Feshbach formalism.

doi: 10.1103/PhysRevC.99.044612
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14556.


2019BE41      Ann.Rev.Nucl.Part.Sci. 69, 109 (2019)

L.A.Bernstein, D.A.Brown, A.J.Koning, B.T.Rearden, C.E.Romano, A.A.Sonzogni, A.S.Voyles, W.Younes

Our Future Nuclear Data Needs

doi: 10.1146/annurev-nucl-101918-023708
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2019HU07      Phys.Rev. C 99, 024310 (2019)

A.M.Hurst, A.Sweet, B.L.Goldblum, R.B.Firestone, M.S.Basunia, L.A.Bernstein, Zs.Revay, L.Szentmiklosi, T.Belgya, J.E.Escher, I.Harsanyi, M.Krticka, B.W.Sleaford, J.Vujic

Radiative-capture cross sections for the 139La (n, γ) reaction using thermal neutrons and structural properties of 140La

NUCLEAR REACTIONS 139La(n, γ), E=thermal and cold; measured Eγ, Iγ, at the Prompt Gamma Activation Analysis facility of Budapest Research Reactor. 140La; deduced levels, J, π, S(n) for 140La, partial γ-ray production σ(γ) relative to those for 35Cl(n, γ), total radiative thermal neutron capture σ. Monte Carlo statistical-decay code DICEBOX calculations. Comparison with previous experimental data in the ENSDF database and other literature.

doi: 10.1103/PhysRevC.99.024310
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset31795.


2019LE12      Eur.Phys.J. A 55, 141 (2019)

A.M.Lewis, L.A.Bernstein, T.Kawano, D.Neudecker

Ratio method for estimating uncertainty in calculated gamma cascades

doi: 10.1140/epja/i2019-12826-y
Citations: PlumX Metrics


2019ZE03      Phys.Rev. C 100, 024305 (2019)

F.Zeiser, G.M.Tveten, G.Potel, A.C.Larsen, M.Guttormsen, T.A.Laplace, S.Siem, D.L.Bleuel, B.L.Goldblum, L.A.Bernstein, F.L.Bello Garrote, L.Crespo Campo, T.K.Eriksen, A.Gorgen, K.Hadynska-Klek, V.W.Ingeberg, J.E.Midtbo, E.Sahin, T.Tornyi, A.Voinov, M.Wiedeking, J.Wilson

Restricted spin-range correction in the Oslo method: The example of nuclear level density and γ-ray strength function from 239Pu (d, pγ)240Pu

NUCLEAR REACTIONS 239Pu(d, p)240Pu, E=12 MeV; measured Eγ, Iγ, Ep, Ip, γp-coin using SiRi particle telescopes and CACTUS γ-ray detector array at the Oslo Cyclotron Laboratory; deduced nuclear level density, γ-ray strength function using Oslo method. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.100.024305
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2018HA39      Nucl.Instrum.Methods Phys.Res. A877, 359 (2018)

K.P.Harrig, B.L.Goldblum, J.A.Brown, D.L.Bleuel, L.A.Bernstein, J.Bevins, M.Harasty, T.A.Laplace, E.F.Matthews

Neutron Spectroscopy for pulsed beams with frame overlap using a double time-of-flight technique

NUCLEAR REACTIONS 9Be(d, X)0-NN-1, E=16 MeV; measured reaction products, En, In; deduced thick target yields.

doi: 10.1016/j.nima.2017.09.051
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2390.


2018JO01      Phys.Rev. C 97, 024327 (2018)

M.D.Jones, A.O.Macchiavelli, M.Wiedeking, L.A.Bernstein, H.L.Crawford, C.M.Campbell, R.M.Clark, M.Cromaz, P.Fallon, I.Y.Lee, M.Salathe, A.Wiens, A.D.Ayangeakaa, D.L.Bleuel, S.Bottoni, M.P.Carpenter, H.M.Davids, J.Elson, A.Gorgen, M.Guttormsen, R.V.F.Janssens, J.E.Kinnison, L.Kirsch, A.C.Larsen, T.Lauritsen, W.Reviol, D.G.Sarantites, S.Siem, A.V.Voinov, S.Zhu

Examination of the low-energy enhancement of the γ-ray strength function of 56Fe

NUCLEAR REACTIONS 56Fe(p, p'), E=16 MeV; measured Eγ, Iγ, γ(θ) for discrete and continuum γ rays, γ(linear polarization) for primary γ rays, pγγ-coin using GRETINA (Gamma-Ray Energy Tracking In-beam Nuclear Array) for γ detection and Washington University Phoswich Wall for protons; deduced multipolarity of continuum γ rays, γ-ray strength function (γSF) with the model-independent ratio method, low-energy enhancement, identical shapes for γSFs constructed with 2+ and 4+ final states consistent with Brink hypothesis. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.97.024327
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2018VO05      Nucl.Instrum.Methods Phys.Res. B429, 53 (2018)

A.S.Voyles, L.A.Bernstein, E.R.Birnbaum, J.W.Engle, S.A.Graves, T.Kawano, A.M.Lewis, F.M.Nortier

Excitation functions for (p, x) reactions of niobium in the energy range of Ep=40-90 MeV

NUCLEAR REACTIONS Nb(p, X)82Rb/83Sr/85Y/86Zr/86Y/87Zr/87Y/88Zr/88Y/89Nb/89Zr/90Mo/90Nb/91Nb/92Nb/93Mo, Cu(p, X)51Cr/52Mn/54Mn/55Co/56Ni/57Ni/57Co/58Co/59Fe/60Co/61Cu/64Cu, E<100 MeV; measured reaction products, Eγ, Iγ; deduced σ and uncertainties, isomer-to-ground-state branching ratios. Comparison with the experimental data, reaction modeling codes EMPIRE, TALYS, and CoH.

doi: 10.1016/j.nimb.2018.05.028
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2017AL11      Eur.Phys.J. A 53, 62 (2017)

J.M.Allmond, C.W.Beausang, T.J.Ross, P.Humby, M.S.Basunia, L.A.Bernstein, D.L.Bleuel, W.Brooks, N.Brown, J.T.Burke, B.K.Darakchieva, K.R.Dudziak, K.E.Evans, P.Fallon, H.B.Jeppesen, J.D.LeBlanc, S.R.Lesher, M.A.McMahan, D.A.Meyer, L.Phair, J.O.Rasmussen, N.D.Scielzo, S.R.Stroberg, M.Wiedeking

Particle-γ coincidence spectroscopy of the N = 90 nucleus 154Gd by (p, tγ)

NUCLEAR REACTIONS 156Gd(p, tγ)154Gd, E=25 MeV; measured Eγ, Iγ(θ), γ∓coin, E(t), I(t), tγ-coin using segmented Si telescope array and HPGe array; deduced triton energy spectra, σ(θ) to discrete states. 154Gd; deduced level scheme, rotational bands. Compared with other (p, t) and (t, p) data.

doi: 10.1140/epja/i2017-12253-2
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2017AR04      Prog.Part.Nucl.Phys. 94, 1 (2017)

A.Arcones, D.W.Bardayan, T.C.Beers, L.A.Bernstein, J.C.Blackmon, B.Messer, B.A.Brown, E.F.Brown, C.R.Brune, A.E.Champagne, A.Chieffi, A.J.Couture, P.Danielewicz, R.Diehl, M.El Eid, J.E.Escher, B.D.Fields, C.Frohlich, F.Herwig, W.R.Hix, C.Iliadis, W.G.Lynch, G.C.McLaughlin, B.S.Meyer, A.Mezzacappa, F.Nunes, B.W.O'Shea, M.Prakash, B.Pritychenko, S.Reddy, E.Rehm, G.Rogachev, R.E.Rutledge, H.Schatz, M.S.Smith, I.H.Stairs, A.W.Steiner, T.E.Strohmayer, F.X.Timmes, D.M.Townsley, M.Wiescher, R.G.T.Zegers, M.Zingale

White paper on nuclear astrophysics and low energy nuclear physics Part 1: Nuclear astrophysics

doi: 10.1016/j.ppnp.2016.12.003
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2017DA20      Phys.Rev. C 96, 024602 (2017)

B.H.Daub, D.L.Bleuel, M.Wiedeking, L.A.Bernstein, N.M.Brickner, J.A.Brown, B.L.Goldblum, K.S.Holliday, J.Lundgren, K.Moody

Neutron transfer in the 13C + 197Au reaction from gold isotope residuals

NUCLEAR REACTIONS 197Au(13C, X)192Au/193Au/194Au/195Au/196Au/196mAu/198Au/198mAu/199Au, E=130 MeV; measured Eγ, Iγ, production cross sections by activation method at LBNLs cyclotron facility. Comparison with predictions from the Wilczynski binary transfer model, and with calculations using TALYS and DICEBOX computer codes.

doi: 10.1103/PhysRevC.96.024602
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2017KH08      Phys.Rev. C 95, 045805 (2017)

B.V.Kheswa, M.Wiedeking, J.A.Brown, A.C.Larsen, S.Goriely, M.Guttormsen, F.L.Bello Garrote, L.A.Bernstein, D.L.Bleuel, T.K.Eriksen, F.Giacoppo, A.Gorgen, B.L.Goldblum, T.W.Hagen, P.E.Koehler, M.Klintefjord, K.L.Malatji, J.E.Midtbo, H.T.Nyhus, P.Papka, T.Renstrom, S.J.Rose, E.Sahin, S.Siem, T.G.Tornyi

137, 138, 139La (n, γ) cross sections constrained with statistical decay properties of 138, 139, 140La nuclei

NUCLEAR REACTIONS 139La(3He, α), (3He, 3He'), E=38 MeV; 139La(d, p), E=13.5 MeV; measured α, 3He and proton spectra, Eγ, Iγ, αγ-, (3He)γ-, and pγ-coin using SiRi array for particles and CACTUS array for γ rays. 138,139,140La; deduced nuclear level densities (NLDs)and γ-ray strength functions (γSF). Comparison with previous experimental data, and with microscopic calculations using HFB+Comb, Fermi gas (BSFG1+CT) and BSFG2+CT models. 137,138,139La(n, γ), E=0.001-1 MeV; calculated σ(E) with the TALYS reaction code using the measured NLDs and γSFs as inputs, and compared to available experimental data.

doi: 10.1103/PhysRevC.95.045805
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2017RO16      Phys.Rev. C 96, 014601 (2017)

S.J.Rose, F.Zeiser, J.N.Wilson, A.Oberstedt, S.Oberstedt, S.Siem, G.M.Tveten, L.A.Bernstein, D.L.Bleuel, J.A.Brown, L.Crespo Campo, F.Giacoppo, A.Gorgen, M.Guttormsen, K.Hadynska, A.Hafreager, T.W.Hagen, M.Klintefjord, T.A.Laplace, A.C.Larsen, T.Renstrom, E.Sahin, C.Schmitt, T.G.Tornyi, M.Wiedeking

Energy dependence of the prompt γ-ray emission from the (d, p) -induced fission of 234U* and 240Pu*

NUCLEAR REACTIONS 233U(d, pF)234U*, E=12.5 MeV; 239Pu(d, pF)239Pu*, E=12 MeV; measured protons, fission fragments, Eγ, p(one of the fission fragments)γ-coin using CACTUS array for γ detection, SiRi detector array for charged-particles and NIFF detector for fission fragments at Oslo Cyclotron Laboratory (OCL); deduced prompt-fission γ-ray spectral (PFGS) distributions, multiplicity, average γ-ray energy, and total γ-ray energy as function of excitation energy. Comparison with model calculations using the fission model code GEF.

doi: 10.1103/PhysRevC.96.014601
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2017VO07      Nucl.Instrum.Methods Phys.Res. B410, 230 (2017)

A.S.Voyles, M.S.Basunia, J.C.Batchelder, J.D.Bauer, T.A.Becker, L.A.Bernstein, E.F.Matthews, P.R.Renne, D.Rutte, M.A.Unzueta, K.A.van Bibber

Measurement of the 64Zn, 47Ti(n, p) cross sections using a DD neutron generator for medical isotope studies

NUCLEAR REACTIONS 64Zn, 47Ti(n, p), E=2-3 MeV; measured reaction products, Eγ, Iγ. 64Cu, 47Sc, 113,115,116In; deduced σ. Comparison with available data.

doi: 10.1016/j.nimb.2017.08.021
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2016BE24      Phys.Rev. C 94, 034303 (2016)

N.Benczer-Koller, G.J.Kumbartzki, K.-H.Speidel, D.A.Torres, S.J.Q.Robinson, Y.Y.Sharon, J.M.Allmond, P.Fallon, I.Abramovic, L.A.Bernstein, J.E.Bevins, H.L.Crawford, Z.E.Guevara, A.M.Hurst, L.Kirsch, T.A.Laplace, A.Lo, E.F.Matthews, I.Mayers, L.W.Phair, F.Ramirez, A.Wiens

Magnetic moment and lifetime measurements of Coulomb-excited states in 106Cd

NUCLEAR REACTIONS 12C(106Cd, 106Cd'), E=410 MeV; measured particle spectra using Si surface-barrier detector, Eγ, Iγ, (particle)γ-coin using four clover HPGe detectors, g factors by the transient-field technique, level half-lives by DSAM at LBNL cyclotron facility. Coulomb excitation. 106Cd; deduced levels, J, B(E2). Comparison with large-scale shell-model, and collective model calculations.

doi: 10.1103/PhysRevC.94.034303
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2016KU05      Phys.Rev. C 93, 044316 (2016)

G.J.Kumbartzki, N.Benczer-Koller, K.-H.Speidel, D.A.Torres, J.M.Allmond, P.Fallon, I.Abramovic, L.A.Bernstein, J.E.Bevins, H.L.Crawford, Z.E.Guevara, G.Gurdal, A.M.Hurst, L.Kirsch, T.A.Laplace, A.Lo, E.F.Matthews, I.Mayers, L.W.Phair, F.Ramirez, S.J.Q.Robinson, Y.Y.Sharon, A.Wiens

Z = 50 core stability in 110Sn from magnetic-moment and lifetime measurements

NUCLEAR REACTIONS 12C(106Cd, 8Be)110Sn, 12C(106Cd, 12C)106Cd, E=390, 400, 410 MeV; measured particle spectra, Eγ, Iγ, (particle)γ-coin, γγ(θ), level half-lives using DSAM and lineshape analysis, g factors using transient field technique at LBNL 88-Inch Cyclotron facility, multi-layered target of carbon, gadolinium, tantalum and copper layers. 110Sn; deduced levels, J, π, B(E2), magnetic moments, configurations, no evidence for excitation of protons from the closed Z=50 core. Comparison with previous experimental results, and with shell model calculations. Systematics of B(E2) values for the first 2+ states in A=104-130, even-even Sn nuclei.

NUCLEAR MOMENTS 110Sn; measured g factors using transient field technique in 12C(106Cd, 8Be) reaction at 410 MeV, and using a multi-layered target; deduced magnetic moments. Comparison with shell model calculations. Systematics of g factors for the first 2+ states in A=104-130, even-even Sn nuclei.

doi: 10.1103/PhysRevC.93.044316
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2016LA02      Phys.Rev. C 93, 014323 (2016); Pub.Note Phys.Rev. C 100, 039901 (2019)

T.A.Laplace, F.Zeiser, M.Guttormsen, A.C.Larsen, D.L.Bleuel, L.A.Bernstein, B.L.Goldblum, S.Siem, F.L.Bello Garotte, J.A.Brown, L.C.Campo, T.K.Eriksen, F.Giacoppo, A.Gorgen, K.Hadynska-Klek, R.A.Henderson, M.Klintefjord, M.Lebois, T.Renstrom, S.J.Rose, E.Sahin, T.G.Tornyi, G.M.Tveten, A.Voinov, M.Wiedeking, J.N.Wilson, W.Younes

Statistical properties of 243Pu, and 242Pu(n, γ) cross section calculation

NUCLEAR REACTIONS 242Pu(d, p), E=12 MeV; measured Eγ, particle spectra, (particle)γ-coin using CACTUS γ-spectrometer and SiRi (Silicon Ring) for particle detection at Oslo Cyclotron Laboratory; deduced γ-strength functions (γSF) in the quasicontinuum using the Oslo method, level density, centroid energy, strength and γSF of M1-scissors resonance, sum-rule estimates. 242Pu(n, γ), E=0.001-5 MeV; calculated σ(n, γ) using TALYS and level density and γSF parameters from the present work. Comparison with published data, and ENDF/B-VII.1, JENDL-4.0 and TENDL2014.

doi: 10.1103/PhysRevC.93.014323
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2016NE08      Phys.Rev. C 94, 024332 (2016)

D.Negi, M.Wiedeking, E.G.Lanza, E.Litvinova, A.Vitturi, R.A.Bark, L.A.Bernstein, D.L.Bleuel, S.Bvumbi, T.D.Bucher, B.H.Daub, T.S.Dinoko, J.L.Easton, A.Gorgen, M.Guttormsen, P.Jones, B.V.Kheswa, N.A.Khumalo, A.C.Larsen, E.A.Lawrie, J.J.Lawrie, S.N.T.Majola, L.P.Masiteng, M.R.Nchodu, J.Ndayishimye, R.T.Newman, S.P.Noncolela, J.N.Orce, P.Papka, L.Pellegri, T.Renstrom, D.G.Roux, R.Schwengner, O.Shirinda, S.Siem

Nature of low-lying electric dipole resonance excitations in 74Ge

NUCLEAR REACTIONS 74Ge(α, α'), E=48 MeV; measured Eγ, Iγ, Eα, αγ-coin, γ(θ), σ(θ) for scattered α particles, relative cross sections of E1 transitions using AFRODITE array for γ detection and silicon detectors for α particles at iThemba Labs cyclotron facility. 74Ge; deduced levels, J, π, B(E1), suppression in relative cross section for the excitation of pygmy-dipole resonances (PDR) as compared to those in (γ, γ') data for excitations above 6 MeV. Comparison of B(E1) with relativistic quasiparticle time blocking approximation (RQTBA) calculations.

doi: 10.1103/PhysRevC.94.024332
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2016RE13      Phys.Rev. C 93, 064302 (2016)

T.Renstrom, H.-T.Nyhus, H.Utsunomiya, R.Schwengner, S.Goriely, A.C.Larsen, D.M.Filipescu, I.Gheorghe, L.A.Bernstein, D.L.Bleuel, T.Glodariu, A.Gorgen, M.Guttormsen, T.W.Hagen, B.V.Kheswa, Y.-W.Lui, D.Negi, I.E.Ruud, T.Shima, S.Siem, K.Takahisa, O.Tesileanu, T.G.Tornyi, G.M.Tveten, M.Wiedeking

Low-energy enhancement in the γ-ray strength functions of 73, 74Ge

NUCLEAR REACTIONS 74Ge(3He, 3He), (3He, α), E=38 MeV; measured Eγ, Iγ, (particle)γ-coin using SiRi particle detector array and CACTUS array for γ detection at Oslo Cyclotron Laboratory (OCL) facility. 74Ge(γ, n), E=10.4-12.7 MeV; measured E(n), I(n), σ(E) using 4π neutron detection array at NewSUBARU synchrotron radiation facility. 73,74Ge, deduced γ-strength functions (γSF), nuclear level densities (NLD). Comparison with shell-model calculations. 72,73Ge(n, γ), E=0.001-3 MeV; deduced experimentally constrained σ(E), and compared with TALYS calculations for E1 and M1 radiations.

doi: 10.1103/PhysRevC.93.064302
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2016TV01      Phys.Rev. C 94, 025804 (2016)

G.M.Tveten, A.Spyrou, R.Schwengner, F.Naqvi, A.C.Larsen, T.K.Eriksen, F.L.Bello Garrote, L.A.Bernstein, D.L.Bleuel, L.Crespo Campo, M.Guttormsen, F.Giacoppo, A.Gorgen, T.W.Hagen, K.Hadynska-Klek, M.Klintefjord, B.S.Meyer, H.T.Nyhus, T.Renstrom, S.J.Rose, E.Sahin, S.Siem, T.G.Tornyi

Completing the nuclear reaction puzzle of the nucleosynthesis of 92Mo

NUCLEAR REACTIONS 92Mo(p, p'), E=16.5 MeV; measured Ep, Ip, Eγ, Iγ pγ-coin, angular distributions using SiRi silicon ΔE-E telescopes for protons and CACTUS scintillator detector array for γ rays at Oslo Cyclotron Laboratory; deduced nuclear level density (NLD) and γ-strength function (γSF) of 92Mo. 91Nb(p, γ)92Mo, T9=1.8-3.5; deduced astrophysical reaction rates using TALYS 1.6 code and NLD and γSF input from present experiment; discussed puzzle of the nucleosynthesis of 92Mo in the context of p process. Comparison with previous experimental results from 92Mo(γ, γ') and 92,94,95,96Mo(γ, n) reactions, and shell model calculations.

doi: 10.1103/PhysRevC.94.025804
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2016WI01      Phys.Rev. C 93, 024303 (2016)

M.Wiedeking, M.Krticka, L.A.Bernstein, J.M.Allmond, M.S.Basunia, D.L.Bleuel, J.T.Burke, B.H.Daub, P.Fallon, R.B.Firestone, B.L.Goldblum, R.Hatarik, P.T.Lake, A.C.Larsen, I.-Y.Lee, S.R.Lesher, S.Paschalis, M.Petri, L.Phair, N.D.Scielzo, A.Volya

γ-ray decay from neutron-bound and unbound states in 95Mo and a novel technique for spin determination

NUCLEAR REACTIONS 94Mo(d, p), E=5.5 MeV/nucleon; measured Ep, Eγ, Iγ, pγ-, pγγ-coin using STARS-LIBERACE detector array at LBNL, cyclotron facility. 95Mo; deduced levels, J, π, γ-branching ratios, average γ-ray emission probabilities. Novel method for spin determination. Comparison with ENSDF evaluation, statistical gamma-ray cascade model calculations, and with shell-model calculations.

doi: 10.1103/PhysRevC.93.024303
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2015DA12      Phys.Rev.Lett. 115, 132502 (2015)

H.M.David, J.Chen, D.Seweryniak, F.G.Kondev, J.M.Gates, K.E.Gregorich, I.Ahmad, M.Albers, M.Alcorta, B.B.Back, B.Baartman, P.F.Bertone, L.A.Bernstein, C.M.Campbell, M.P.Carpenter, C.J.Chiara, R.M.Clark, M.Cromaz, D.T.Doherty, G.D.Dracoulis, N.E.Esker, P.Fallon, O.R.Gothe, J.P.Greene, P.T.Greenlees, D.J.Hartley, K.Hauschild, C.R.Hoffman, S.S.Hota, R.V.F.Janssens, T.L.Khoo, J.Konki, J.T.Kwarsick, T.Lauritsen, A.O.Macchiavelli, P.R.Mudder, C.Nair, Y.Qiu, J.Rissanen, A.M.Rogers, P.Ruotsalainen, G.Savard, S.Stolze, A.Wiens, S.Zhu

Decay and Fission Hindrance of Two- and Four-Quasiparticle K Isomers in 254Rf

NUCLEAR REACTIONS 206Pb(50Ti, 2n)254Rf, E=242.5 MeV; measured reaction products, Eγ, Iγ, Eβ, Iβ; deduced energy levels, J, π, isomer T1/2, unprecedented fission hindrance relative to the ground state. Comparison with multiquasiparticle calculations.

doi: 10.1103/PhysRevLett.115.132502
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2015GI02      Phys.Rev. C 91, 054327 (2015)

F.Giacoppo, F.L.Bello Garrote, L.A.Bernstein, D.L.Bleuel, R.B.Firestone, A.Gorgen, M.Guttormsen, T.W.Hagen, M.Klintefjord, P.E.Koehler, A.C.Larsen, H.T.Nyhus, T.Renstrom, E.Sahin, S.Siem, T.Tornyi

γ decay from the quasicontinuum of 197, 198Au

NUCLEAR REACTIONS 197Au(d, p), E=12.5 MeV; 197Au(3He, 3He'), E=34.0 MeV; measured Eγ, Iγ, particle spectra, (particle)γ-coin using CACTUS spectrometer for γ rays and SiRi (Silicon Ring) for particle detection at Oslo Cyclotron Laboratory; deduced γ strength functions, level density, spin cutoff distributions as function of excitation energy, σ(E) for 197Au(n, γ). Comparison with (γ, n) experimental results, and with theoretical calculations using EGLO model with four SLO components, and QRPA.

doi: 10.1103/PhysRevC.91.054327
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2015GU27      Eur.Phys.J. A 51, 170 (2015)

M.Guttormsen, M.Aiche, F.L.Bello Garrote, L.A.Bernstein, D.L.Bleuel, Y.Byun, Q.Ducasse, T.K.Eriksen, F.Giacoppo, A.Gorgen, F.Gunsing, T.W.Hagen, B.Jurado, M.Klintefjord, A.C.Larsen, L.Lebois, B.Leniau, H.T.Nyhus, T.Renstrom, S.J.Rose, E.Sahin, S.Siem, T.G.Tornyi, G.M.Tveten, A.Voinov, M.Wiedeking, J.Wilson

Experimental level densities of atomic nuclei

doi: 10.1140/epja/i2015-15170-4
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2015LA08      Acta Phys.Pol. B46, 509 (2015)

A.C.Larsen, S.Goriely, L.A.Bernstein, D.L.Bleuel, A.Bracco, B.A.Brown, F.Camera, T.K.Eriksen, S.Frauendorf, F.Giacoppo, M.Guttormsen, A.Gorgen, S.Harissopulos, S.Leoni, S.N.Liddick, F.Naqvi, H.T.Nyhus, S.J.Rose, T.Renstrom, R.Schwengner, S.Siem, A.Spyrou, G.M.Tveten, A.V.Voinov, M.Wiedeking

Upbend and M1 Scissors Mode in Neutron-rich Nuclei - Consequences for r-process (n, γ) Reaction Rates

doi: 10.5506/APhysPolB.46.509
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2015MA55      Phys.Rev. C 92, 044309 (2015)

R.Massarczyk, R.Schwengner, L.A.Bernstein, M.Anders, D.Bemmerer, R.Beyer, Z.Elekes, R.Hannaske, A.R.Junghans, T.Kogler, M.Roder, K.Schmidt, A.Wagner, L.Wagner

Dipole strength distribution of 74Ge

NUCLEAR REACTIONS 74Ge(γ, γ'), E=1-11 MeV; measured Eγ, Iγ, γγ(θ), angle-integrated scattering cross section at the ELBE accelerator facility. 74Ge; deduced levels, J, π. Statistical methods, and simulations of γ-ray cascades. Comparison with (γ, n) data, and with three Lorentz functions (TLO) calculations.

doi: 10.1103/PhysRevC.92.044309
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2014FI14      Nucl.Data Sheets 119, 79 (2014)

R.B.Firestone, K.Abusaleem, M.S.Basunia, F.Becvar, T.Belgya, L.A.Bernstein, H.D.Choi, J.E.Escher, C.Genreith, A.M.Hurst, M.Krticka, P.R.Renne, Zs.Revay, A.M.Rogers, M.Rossbach, S.Siem, B.Sleaford, N.C.Summers, L.Szentmiklosi, K.van Bibber, M.Wiedeking

EGAF: Measurement and Analysis of Gamma-ray Cross Sections

COMPILATION Z=1-82(n, γ), E=thermal[two targets not included: He and Pm]; calculated, evaluated prompt γ energy spectra for activation analysis.

doi: 10.1016/j.nds.2014.08.024
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2014GI08      Phys.Rev. C 90, 054330 (2014)

F.Giacoppo, F.L.Bello Garrote, L.A.Bernstein, D.L.Bleuel, T.K.Eriksen, R.B.Firestone, A.Gorgen, M.Guttormsen, T.W.Hagen, B.V.Kheswa, M.Klintefjord, P.E.Koehler, A.C.Larsen, H.T.Nyhus, T.Renstrom, E.Sahin, S.Siem, T.Tornyi

Level densities and thermodynamical properties of Pt and Au isotopes

NUCLEAR REACTIONS 195Pt(d, p), (p, p'), (p, d), E=11.3, 16.5 MeV; 197Au(d, p), (d, d'), E=12.5 MeV; 197Au(3He, 3He'), E=34.0 MeV; measured Eγ, Iγ, particle spectra, (particle)γ-coin using SiRi particle detector array and CACTUS multidetector array for γ rays at Oslo cyclotron facility. 194,195,196Pt, 197,198Au; deduced level densities from the population of excited states below S(n), density as function of temperature, single-particle level space for the last unpaired valence neutron, heat capacity and temperature, evidence of consecutive breaking of nucleon Cooper pairs in the heated nuclear system.

doi: 10.1103/PhysRevC.90.054330
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2014GU04      Phys.Rev. C 89, 014302 (2014)

M.Guttormsen, L.A.Bernstein, A.Gorgen, B.Jurado, S.Siem, M.Aiche, Q.Ducasse, F.Giacoppo, F.Gunsing, T.W.Hagen, A.C.Larsen, M.Lebois, B.Leniau, T.Renstrom, S.J.Rose, T.G.Tornyi, G.M.Tveten, M.Wiedeking, J.N.Wilson

Scissors resonance in the quasicontinuum of Th, Pa, and U isotopes

NUCLEAR REACTIONS 232Th(d, d'), (d, p), E=12 MeV; 232Th(3He, 3He'), (3He, d), (3He, t), (3He, α), E=24 MeV; 238U(d, d'), (d, p), (d, t), E=15 MeV; measured Eγ, Iγ, particle spectra, (particle)γ-coin using SiRi particle telescope and CACTUS γ-detector array at Oslo cyclotron facility. 231,232,233Th, 232,233Pa, 237,238,239U; deduced γ strength functions in the quasicontinuum, low-energy M1 scissors resonance (SR), level densities using Oslo method Comparison with previous (γ, γ') experimental results, and with theoretical model calculations.

doi: 10.1103/PhysRevC.89.014302
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2014WI04      Nucl.Data Sheets 119, 258 (2014)

M.Wiedeking, L.A.Bernstein, J.M.Allmond, M.S.Basunia, D.L.Bleuel, J.T.Burke, P.Fallon, R.B.Firestone, B.L.Goldblum, R.Hatarik, M.Krticka, P.T.Lake, A.C.Larsen, I.-Y.Lee, S.R.Lesher, S.Paschalis, M.Petri, L.Phair, N.D.Scielzo

Photon Strength Function at Low Energies in 95Mo

NUCLEAR REACTIONS 94Mo(d, p), E=11 MeV; measured Eγ, Iγ, Ep, Ip, pγ-coin, charged particles using STARS-LIBERACE array; deduced γ-ray strength function energy dependence below 7 MeV using also (3He, α) data reference; calculated γ-ray strength function using various assumptions on reaction mechanism.

doi: 10.1016/j.nds.2014.08.071
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2013GU10      Acta Phys.Pol. B44, 567 (2013)

M.Guttormsen, L.A.Bernstein, A.Burger, A.Gorgen, F.Gunsing, T.W.Hagen, A.C.Larsen, T.Renstrom, S.Siem, M.Wiedeking, J.N.Wilson

Observation of Large Orbital Scissors Strength in Actinides

NUCLEAR REACTIONS 232Th(d, pγ)233Th, E=12 MeV; 232Th(3He, X), E=24 MeV; measured reaction products, Eγ, Iγ. 231,232,233Th, 232,233Pa; deduced scissors mode parameters, M1-scissors resonance, B(M1), increased γ-decay probability. Comparison with available data.

doi: 10.5506/APhysPolB.44.567
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2013GU27      Phys.Rev. C 88, 024307 (2013)

M.Guttormsen, B.Jurado, J.N.Wilson, M.Aiche, L.A.Bernstein, Q.Ducasse, F.Giacoppo, A.Gorgen, F.Gunsing, T.W.Hagen, A.C.Larsen, M.Lebois, B.Leniau, T.Renstrom, S.J.Rose, S.Siem, T.Tornyi, G.M.Tveten, M.Wiedeking

Constant-temperature level densities in the quasicontinuum of Th and U isotopes

NUCLEAR REACTIONS 232Th(d, p), (d, d'), (d, t), E=12 MeV; 232Th(3He, 3He'), (3He, α), E=24 MeV; 238U(d, p), (d, d'), (d, t), E=15 MeV; measured (particle)γ-coin in the quasicontinuum region using SiRi particle detector array and CACTUS-γ detector system at Oslo cyclotron laboratory; deduced excitation energy vs Eγ distributions. 231,232,233Th, 237,238,239U; deduced level densities using the Oslo method, increase in level density for odd-A isotopes as compared to even-even isotopes, similar temperatures in the quasicontinuum. 237,238,239U; deduced entropy, excess of entropy for odd-A isotopes as compared to even-even neighbor, microcanonical temperature, heat capacity. Evidence for continuous melting of Cooper pairs from constant temperature behavior.

doi: 10.1103/PhysRevC.88.024307
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2012GO06      Phys.Rev. C 85, 054616 (2012)

B.L.Goldblum, M.Wiedeking, T.Reed, K.Alfonso, J.M.Allmond, L.A.Bernstein, D.L.Bleuel, F.S.Dietrich, R.Hatarik, P.T.Lake, I.-Y.Lee, S.R.Lesher, S.Paschalis, M.Petri, L.Phair, N.D.Scielzo, R.Vial, J.Vujic

Indirect determination of neutron capture cross sections on spherical and near-spherical nuclei using the surrogate method

NUCLEAR REACTIONS 92,94Mo(d, p), E=11 MeV; measured particle spectrum, Eγ, Iγ, (particle)γ-coin using STARS-LIBERACE array. DWBA analysis. 92Mo(n, γ), E=80-890 keV; deduced capture cross section using the absolute surrogate and surrogate ratio methods (SRM) relative to 94Mo(n, γ) cross section. Gamma decay tagging techniques. Dicebox statistical model analysis for gamma cascades. Comparison with ENDF/B-VII.0 evaluation.

doi: 10.1103/PhysRevC.85.054616
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14338.


2012GU21      Phys.Rev.Lett. 109, 162503 (2012)

M.Guttormsen, L.A.Bernstein, A.Burger, A.Gorgen, F.Gunsing, T.W.Hagen, A.C.Larsen, T.Renstrom, S.Siem, M.Wiedeking, J.N.Wilson

Observation of Large Scissors Resonance Strength in Actinides

NUCLEAR REACTIONS 232Th(3He, α), (3He, t), (3He, d), E=24 MeV;232Th(d, d), (d, p), E=12 MeV; measured reaction products; deduced radiative strength functions, M1 scissors resonance. Comparison with available data, theoretical calculations.

doi: 10.1103/PhysRevLett.109.162503
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2012SC10      Phys.Rev. C 85, 054619 (2012)

N.D.Scielzo, J.E.Escher, J.M.Allmond, M.S.Basunia, C.W.Beausang, L.A.Bernstein, D.L.Bleuel, J.T.Burke, R.M.Clark, F.S.Dietrich, P.Fallon, J.Gibelin, B.L.Goldblum, S.R.Lesher, M.A.McMahan, E.B.Norman, L.Phair, E.Rodriguez-Vieitez, S.A.Sheets, I.J.Thompson, M.Wiedeking

Statistical γ rays in the analysis of surrogate nuclear reactions

NUCLEAR REACTIONS 154,155,156,158Gd(p, p'), E=21.7 MeV; measured Ep, Ip, Eγ, Iγ, pγ-coin using STARS-LiBerACE at LBNL cyclotron facility; deduced γ-ray emission probability. 155,157Gd(n, γ), E<3.5 MeV; deduced cross section ratios by surrogate analyses using statistical and discrete γ-rays. Comparison with reaction theory. Surrogate nuclear reaction technique.

doi: 10.1103/PhysRevC.85.054619
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14339.


2012WI03      Phys.Rev. C 85, 034607 (2012)

J.N.Wilson, F.Gunsing, L.A.Bernstein, A.Burger, A.Gorgen, M.Guttormsen, A.-C.Larsen, P.Mansouri, T.Renstrom, S.J.Rose, A.Semchenkov, S.Siem, N.U.H.Syed, H.K.Toft, M.Wiedeking, T.Wiborg-Hagen

Indirect (n, γ) cross sections of thorium cycle nuclei using the surrogate method

NUCLEAR REACTIONS 232Th(d, p)233Th, E=12 MeV; 232Th(3He, t)232Pa, 232Th(3He, α)231Th, E=24 MeV; measured energy loss, E(particle), I(particle), Eγ, Iγ, γ(fragment)-coin using CACTUS γ-detector array, and Silicon Ring charged-particle detector at Oslo Cyclotron Laboratory; deduced γ decay probabilities. 230,232Th, 231Pa(n, γ), E<1.4 MeV; deduced cross sections using surrogate ratio method. Comparison with evaluated data libraries. Optical model calculations of compound nucleus formation cross sections, and weighting function technique.

doi: 10.1103/PhysRevC.85.034607
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23165.


2012WI04      Phys.Rev.Lett. 108, 162503 (2012)

M.Wiedeking, L.A.Bernstein, M.Krticka, D.L.Bleuel, J.M.Allmond, M.S.Basunia, J.T.Burke, P.Fallon, R.B.Firestone, B.L.Goldblum, R.Hatarik, P.T.Lake, I-Y.Lee, S.R.Lesher, S.Paschalis, M.Petri, L.Phair, N.D.Scielzo

Low-Energy Enhancement in the Photon Strength of 95Mo

NUCLEAR REACTIONS 94Mo(d, p), E=11 MeV; measured reaction products, Eπ, Iπ, Eγ, Iγ, γ-γ-coin.; deduced photon strength functions, low-energy enhancement. Comparison with available data, quadratic fit.

doi: 10.1103/PhysRevLett.108.162503
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2011GI03      Nucl.Instrum.Methods Phys.Res. A648, 109 (2011)

J.Gibelin, M.Wiedeking, L.Phair, P.Fallon, S.Basunia, L.A.Bernstein, J.T.Burke, D.L.Bleuel, R.M.Clark, M.Cromaz, M.-A.Deleplanque, B.F.Goldblum, S.Gros, H.B.Jeppesen, P.T.Lake, I.-Y.Lee, S.R.Lesher, A.O.Macchiavelli, M.A.McMahan, J.Pavan, E.Rodriguez-Vieitez, N.D.Scielzo, L.G.Moretto

Channel selection of neutron-rich nuclei following fusion-evaporation reactions of light systems

NUCLEAR REACTIONS 9Be(9Be, X)15N/16N/12C/13C/15C/16C, E=30, 35, 40 MeV;12C(18O, X)27Mg/28Mg, E=50, 60 MeV; 11B, 12C(18O, X)26Mg/27Mg/25Mg/24Na, E not given; measured reaction products, Eγ, Iγ; deduced production yields. Comparison with PACE, LisFus and GEMINI calculations.

doi: 10.1016/j.nima.2011.05.041
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2011RE09      Phys.Rev. C 83, 054610 (2011)

J.J.Ressler, J.T.Burke, J.E.Escher, C.T.Angell, M.S.Basunia, C.W.Beausang, L.A.Bernstein, D.L.Bleuel, R.J.Casperson, B.L.Goldblum, J.Gostic, R.Hatarik, R.Henderson, R.O.Hughes, J.Munson, L.W.Phair, T.J.Ross, N.D.Scielzo, E.Swanberg, I.J.Thompson, M.Wiedeking

Surrogate measurement of the 238Pu(n, f) cross section

NUCLEAR REACTIONS 239Pu(α, α'F), 235U(α, α'F), 236U(α, α'F), E=20-55 MeV; measured particle and fission fragment spectra, α-fission coincidences, cross sections, fission fragment anisotropy ratios. 238Pu, 234,235U(n, F), E=5-20 MeV; deduced fission cross sections using surrogate ratio method. Comparison with previous experimental data and evaluated libraries. Data needs for following reactions for next-generation reactors: 241Pu, 241,242Am, 243,244,245Cm(n, F), E.1 MeV. Potential surrogate and ratio reactions listed.

doi: 10.1103/PhysRevC.83.054610
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14292.


2010AL15      Phys.Rev. C 81, 064316 (2010)

J.M.Allmond, C.W.Beausang, J.O.Rasmussen, T.J.Ross, M.S.Basunia, L.A.Bernstein, D.L.Bleuel, W.Brooks, N.Brown, J.T.Burke, B.K.Darakchieva, K.R.Dudziak, K.E.Evans, P.Fallon, H.B.Jeppesen, J.D.LeBlanc, S.R.Lesher, M.A.McMahan, D.A.Meyer, L.Phair, N.D.Scielzo, S.R.Stroberg, M.Wiedeking

Particle-γ spectroscopy of the (p, d-γ)155Gd reaction: Neutron single-quasiparticle states at N=91

NUCLEAR REACTIONS 156Gd(p, d), E=25 MeV; measured Eγ, Iγ, Ed, Id, dγ-, dγγ-coin, γd(θ), σ. 155Gd; deduced levels, J, π, Nilsson configurations, L transfers, C2jl expansion coefficients, occupancies V2. DWBA analysis of σ(θ) data.

doi: 10.1103/PhysRevC.81.064316
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2063. Data from this article have been entered in the XUNDL database. For more information, click here.


2010BL14      Nucl.Instrum.Methods Phys.Res. A 624, 691 (2010)

D.L.Bleuel, L.A.Bernstein, J.T.Burke, J.Gibelin, M.D.Heffner, J.Mintz, E.B.Norman, L.Phair, N.D.Scielzo, S.A.Sheets, N.J.Snyderman, M.A.Stoyer, M.Wiedeking

Gamma-ray multiplicity measurement of the spontaneous fission of 252Cf in a segmented HPGe/BGO detector array

RADIOACTIVITY 252Cf(SF); measured products, Eγ, Iγ; deduced yields. Data were imported from EXFOR entry 14286.

doi: 10.1016/j.nima.2010.09.145
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14286.


2010GO09      Phys.Rev. C 81, 054606 (2010)

B.L.Goldblum, S.G.Prussin, L.A.Bernstein, W.Younes, M.Guttormsen, H.T.Nyhus

Surrogate ratio methodology for the indirect determination of neutron capture cross sections

NUCLEAR REACTIONS 161,162,163Dy(3He, 3He'), (3He, α), E=45 MeV; 164Dy(3He, 3He'), E=38 MeV; measured Eγ, Iγ. 160,161,163Dy(n, γ), E<600 keV; deduced σ using the external surrogate ratio method (SRM).

doi: 10.1103/PhysRevC.81.054606
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23112.


2010HA03      Phys.Rev. C 81, 011602 (2010)

R.Hatarik, L.A.Bernstein, J.A.Cizewski, D.L.Bleuel, J.T.Burke, J.E.Escher, J.Gibelin, B.L.Goldblum, A.M.Hatarik, S.R.Lesher, P.D.O'Malley, L.Phair, E.Rodriguez-Vieitez, T.Swan, M.Wiedeking

Benchmarking a surrogate reaction for neutron capture

NUCLEAR REACTIONS 171,173Yb(d, pγ), E=18.5 MeV; measured Eγ, Iγ, particle spectra, (particle)γ-coin using STARS array for particles and HPGe detectors for γ rays; deduced intensity ratios of γ rays in 172Yb and 174Yb, cross sections, and comparison with DICEBOX simulations. 171,173Yb(n, γ), E=5-260 keV; comparison of neutron capture cross sections with those from (d, pγ) reaction using external surrogate ratio method.

doi: 10.1103/PhysRevC.81.011602
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14258.


2010RE01      Phys.Rev. C 81, 014301 (2010)

J.J.Ressler, J.A.Caggiano, C.J.Francy, P.N.Peplowski, J.M.Allmond, C.W.Beausang, L.A.Bernstein, D.L.Bleuel, J.T.Burke, P.Fallon, A.A.Hecht, D.V.Jordan, S.R.Lesher, M.A.McMahan, T.S.Palmer, L.Phair, N.D.Scielzo, P.G.Swearingen, G.A.Warren, M.Wiedeking

Fission fragment isomers populated via 6Li+232Th

NUCLEAR REACTIONS 232Th(6Li, X), E=45 MeV; measured Eγ, Iγ, γγ-coin, particle spectra, (particle)γ-coin, (particle)γ-correlations using STARS Si array at LBNL and Ge detectors. 88Br, 93Rb, 95,98,99Y, 99Mo, 100Tc, 121,123In, 119,120,121,122,123,124,125,126,127Sn, 123,125,127,131Sb, 131I, 132Te, 134,136Xe; measured isomer half-lives; deduced levels, J, π. Level systematics of neighboring Sn, Sb and In nuclides.

RADIOACTIVITY 121m,123mIn(IT), 125mSb(IT); measured Eγ, Iγ, γγ-coin; deduced levels, J, π. 117Cd, 128Sb(β-); measured Eγ.

doi: 10.1103/PhysRevC.81.014301
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Data from this article have been entered in the XUNDL database. For more information, click here.


2010SC06      Phys.Rev. C 81, 034608 (2010)

N.D.Scielzo, J.E.Escher, J.M.Allmond, M.S.Basunia, C.W.Beausang, L.A.Bernstein, D.L.Bleuel, J.T.Burke, R.M.Clark, F.S.Dietrich, P.Fallon, J.Gibelin, B.L.Goldblum, S.R.Lesher, M.A.McMahan, E.B.Norman, L.Phair, E.Rodriquez-Vieitez, S.A.Sheets, I.J.Thompson, M.Wiedeking

Measurement of γ-emission branching ratios for 154, 156, 158Gd compound nuclei: Tests of surrogate nuclear reaction approximations for (n, γ) cross sections

NUCLEAR REACTIONS 154,156,158Gd(p, p'γ), E=22 MeV; measured Eγ, Iγ, proton spectra, γ-ray emission probabilities using STARS/LiBerACE array. 155,157Gd(n, γ), E=0.01-4 MeV; deduced σ by surrogate reaction method using Weisskopf-Ewing and ratio approximations.

doi: 10.1103/PhysRevC.81.034608
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14268.


2009AL13      Phys.Rev. C 79, 054610 (2009)

J.M.Allmond, L.A.Bernstein, C.W.Beausang, L.Phair, D.L.Bleuel, J.T.Burke, J.E.Escher, K.E.Evans, B.L.Goldblum, R.Hatarik, H.B.Jeppesen, S.R.Lesher, M.A.McMahan, J.O.Rasmussen, N.D.Scielzo, M.Wiedeking

Relative 235U(n, γ) and (n, f) cross sections from 235U(d, pγ) and (d, pf)

NUCLEAR REACTIONS 235U(d, pγ), (d, pf), E=21 MeV; measured Eγ, Iγ, proton spectra, fission spectra, σ. Internal surrogate ratio method (ISRM). Model-independent method used for measurement of γ-channel yield.

doi: 10.1103/PhysRevC.79.054610
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14230.


2009BA23      Nucl.Instrum.Methods Phys.Res. B267, 1899 (2009)

M.S.Basunia, R.M.Clark, B.L.Goldblum, L.A.Bernstein, L.Phair, J.T.Burke, C.W.Beausang, D.L.Bleuel, B.Darakchieva, F.S.Dietrich, M.Evtimova, P.Fallon, J.Gibelin, R.Hatarik, C.C.Jewett, S.R.Lesher, M.A.McMahan, E.Rodriguez-Vieitez, M.Wiedeking

The (3He, tf) as a surrogate reaction to determine (n, f) cross sections in the 10-20 MeV energy range

NUCLEAR REACTIONS 238U(3He, tf), E=10-20 MeV; Measured surrogate σ;237Np(n, f); Deduced σ. Compared results with ENDF/B-VII.0, JENDL-3.3 libraries.

doi: 10.1016/j.nimb.2009.04.006
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset31673.


2009BE26      Phys.Rev. C 80, 014302 (2009)

P.C.Bender, C.R.Hoffman, M.Wiedeking, J.M.Allmond, L.A.Bernstein, J.T.Burke, D.L.Bleuel, R.M.Clark, P.Fallon, B.L.Goldblum, T.A.Hinners, H.B.Jeppesen, S.Lee, I.-Y.Lee, S.R.Lesher, A.O.Macchiavelli, M.A.McMahan, D.Morris, M.Perry, L.Phair, N.D.Scielzo, S.L.Tabor, V.Tripathi, A.Volya

Approaching the "island of inversion": 34P

NUCLEAR REACTIONS 18O(18O, np), E=20, 24, 25, 30, 44 MeV; measured Eγ, Iγ, γγ-, pγ-coin, γ(θ), DSA and half-lives. 34P; deduced levels, J, π, multipolarities, transition strengths and configurations. Island of inversion. Comparison with shell-model calculations using a modified WBP interaction.

NUCLEAR STRUCTURE 32,34,36P; calculated levels, J, π and subshell occupancies using WBP interaction shell-model formalism.

doi: 10.1103/PhysRevC.80.014302
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Data from this article have been entered in the XUNDL database. For more information, click here.


2009GO28      Phys.Rev. C 80, 044610 (2009)

B.L.Goldblum, S.R.Stroberg, J.M.Allmond, C.Angell, L.A.Bernstein, D.L.Bleuel, J.T.Burke, J.Gibelin, L.Phair, N.D.Scielzo, E.Swanberg, M.Wiedeking, E.B.Norman

Indirect determination of the 230Th(n, f) and 231Th(n, f) cross sections for thorium-based nuclear energy systems

NUCLEAR REACTIONS 230Th(n, f), E=220 keV-25 MeV; 231Th(n, f), E=360 keV-10 MeV; measured fission fragments, σ using surrogate ratio method. Comparison with previous measurements and evaluations. 232Th, 236U(3He, 3He'), (3He, α), E=42 MeV; measured particle spectra, and relative fission decay probability in surrogate reactions.

doi: 10.1103/PhysRevC.80.044610
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14254.


2009LE11      Phys.Rev. C 79, 044609 (2009)

S.R.Lesher, J.T.Burke, L.A.Bernstein, H.Ai, C.W.Beausang, D.L.Bleuel, R.M.Clark, F.S.Dietrich, J.E.Escher, P.Fallon, J.Gibelin, B.L.Goldblum, I.Y.Lee, A.O.Macchiavelli, M.A.McMahan, K.J.Moody, E.B.Norman, L.Phair, E.Rodriguez-Vieitez, N.D.Scielzo, M.Wiedeking

Surrogate ratio method in the actinide region using the (α, α'f) reaction

NUCLEAR REACTIONS 234,236U(α, α'f), E=55 MeV; measured fission spectra, α(fission)-coin, in-plane and out-of-plane fission ratios; deduced direct-reaction-induced fission probability ratio. 233,235U(n, f); compared cross sections. Comparison between fission probability ratio and ratio of cross sections. Surrogate ratio method (SRM). Application of SRM as a method of calculating unknown cross sections.

doi: 10.1103/PhysRevC.79.044609
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14250.


2008GO30      Phys.Rev. C 78, 064606 (2008)

B.L.Goldblum, S.G.Prussin, U.Agvaanluvsan, L.A.Bernstein, D.L.Bleuel, W.Younes, M.Guttormsen

Determination of (n, γ) cross sections in the rare-earth region using the surrogate ratio method

NUCLEAR REACTIONS 171Yb, 161Dy(3He, 3He'), (3He, α), E=38 MeV/nucleon; analyzed neutron energies. 170Yb, 160Dy(n, γ); deduced Eγ, σ. Surrogate ratio method.

doi: 10.1103/PhysRevC.78.064606
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset23053.


2008WI04      Phys.Rev.Lett. 100, 152501 (2008)

M.Wiedeking, P.Fallon, A.O.Macchiavelli, J.Gibelin, M.S.Basunia, R.M.Clark, M.Cromaz, M.-A.Deleplanque, S.Gros, H.B.Jeppesen, P.T.Lake, I.-Y.Lee, L.G.Moretto, J.Pavan, L.Phair, E.Rodriguez-Vieitez, L.A.Bernstein, D.L.Bleuel, J.T.Burke, S.R.Lesher, B.F.Lyles, N.D.Scielzo

Lifetime Measurement of the First Excited 2+ State in 16C

NUCLEAR REACTIONS 9Be(9Be, 2p), E=40 MeV; measured Eγ, Iγ, charged particles. 16C; deduced levels, lifetimes, B(E2).

doi: 10.1103/PhysRevLett.100.152501
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Data from this article have been entered in the XUNDL database. For more information, click here.


2008WI05      Phys.Rev. C 77, 054305 (2008)

M.Wiedeking, P.Fallon, A.O.Macchiavelli, L.A.Bernstein, J.Gibelin, L.Phair, J.T.Burke, D.L.Bleuel, R.M.Clark, M-A.Deleplanque, S.Gros, R.Hatarik, H.B.Jeppesen, I-Y.Lee, B.F.Lyles, M.A.McMahan, L.G.Moretto, J.Pavan, E.Rodriguez-Vieitez, A.Volya

Nuclear structure of 18N and the neighboring N = 11 isotones

NUCLEAR REACTIONS 9Be(11B, 2p), E=50 MeV; measured Eγ, Iγ, γγ-, (2p)γ-coin, lifetimes. 18N; deduced levels, J, π, configurations. 17C, 18N, 19O; systematics. Comparison with model calculations.

doi: 10.1103/PhysRevC.77.054305
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2007AL49      Phys.Atomic Nuclei 70, 1634 (2007)

E.Algin, A.Schiller, A.Voinov, U.Agvaanluvsan, T.Belgya, L.A.Bernstein, C.R.Brune, R.Chankova, P.E.Garrett, S.M.Grimes, M.Guttormsen, M.Hjorth-Jensen, M.J.Hornish, C.W.Johnson, T.Massey, G.E.Mitchell, J.Rekstad, S.Siem, W.Younes

Bulk properties of iron isotopes

NUCLEAR REACTIONS 57Fe(3He, α), (3He, 3He'), E=45 MeV; 56Fe(n, γ), E=thermal; 55Mn(d, n), E=7.0 MeV; measured Eγ, Iγ. Deduced nuclear level densities and radiative strength functions. Compared results to model calculations.

doi: 10.1134/S1063778807090232
Citations: PlumX Metrics


2007BE33      Acta Phys.Pol. B38, 1535 (2007)

C.W.Beausang, S.R.Lesher, J.T.Burke, L.A.Bernstein, L.Phair, H.Ai, G.Gurdal, L.Ahle, D.S.Brenner, M.Carpenter, R.M.Clark, B.Crider, J.Escher, P.Fallon, J.P.Greene, D.J.Hartley, A.A.Hecht, R.V.F.Janssens, T.Lauritsen, I.Y.Lee, C.J.Lister, A.O.Macchiavelli, M.A.McMahan, C.Plettner, J.Rohrer, D.Seweryniak, E.Williams, S.Zhu

New Results on Fission Cross Sections in Actinide Nuclei Using the Surrogate Ratio Method and on Conversion Coefficients in Triaxial Strongly Deformed Bands in 167Lu from ICE Ball and Gammasphere

NUCLEAR REACTIONS 234,236U(α, α'f), E=55 MeV; measured Eα, fission fragment energy, (fission-fragment)α-coinc. Deduced fission probabilities. Compared results to ENDF data.

NUCLEAR REACTIONS 123Sb(48Ca, X)167Lu, E=203 MeV; measured Eγ, Iγ, conversion electron energies, γγ-coinc, (conversion-electron)γ-coinc. 167Lu deduced conversion coefficients.


2007DA21      Phys.Rev. C 75, 054612 (2007)

D.Dashdorj, T.Kawano, P.E.Garrett, J.A.Becker, U.Agvaanluvsan, L.A.Bernstein, M.B.Chadwick, M.Devlin, N.Fotiades, G.E.Mitchell, R.O.Nelson, W.Younes

Effect of preequilibrium spin distribution on 48Ti + n cross sections

NUCLEAR REACTIONS 48Ti(n, n'γ), (n, 2nγ), E=1-35 MeV; calculated discrete γ-ray production cross section using Hauser-Feshbach formalism with spin distribution for the preequlibrium process calculated using the Feshbach-Kerman-Koonin theory. Compared results to experimental data.

doi: 10.1103/PhysRevC.75.054612
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2007DA24      Nucl.Sci.Eng. 157, 65 (2007)

D.Dashdorj, G.E.Mitchell, J.A.Becker, U.Agvaanluvsan, L.A.Bernstein, W.Younes, P.E.Garrett, M.B.Chadwick, M.Devlin, N.Fotiades, T.Kawano, R.O.Nelson

Gamma-Ray Production Cross Sections in Multiple Channels for Neutron-Induced Reaction on 48Ti for En = 1 to 200 MeV

NUCLEAR REACTIONS 48Ti(n, γX), E=1-200 MeV; measured prompt γ-ray production cross sections. Compared results to model calculations.

doi: 10.13182/NSE07-A2713
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14162.


2007GA03      Phys.Rev. C 75, 014307 (2007)

P.E.Garrett, S.M.Lenzi, E.Algin, D.Appelbe, R.W.Bauer, J.A.Becker, L.A.Bernstein, J.A.Cameron, M.P.Carpenter, R.V.F.Janssens, C.J.Lister, D.Seweryniak, D.D.Warner

Spectroscopy of the N = Z - 2 nucleus 46Cr and mirror energy differences

NUCLEAR REACTIONS 12C(36Ar, 2n), E=105 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 46Cr deduced levels, J, π, analog states features. Gammasphere array, fragment separator.

doi: 10.1103/PhysRevC.75.014307
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2007LY04      Phys.Rev. C 76, 014606 (2007); Erratum Phys.Rev. C 76, 019905 (2007)

B.F.Lyles, L.A.Bernstein, J.T.Burke, F.S.Dietrich, J.Escher, I.Thompson, D.L.Bleuel, R.M.Clark, P.Fallon, J.Gibelin, A.O.Macchiavelli, M.A.McMahan, L.Phair, E.Rodriguez-Vieitez, M.Wiedeking, C.W.Beausang, S.R.Lesher, B.Darakchieva, M.Evtimova

Absolute and relative surrogate measurements of the 236U(n, f) cross section as a probe of angular momentum effects

NUCLEAR REACTIONS 235,238U(3He, αf), E=42 MeV; measured fission fragment spectra in coincidence with α-particles. 236U(n, f), E< 20 MeV; deduced cross sections using the surrogate technique.

doi: 10.1103/PhysRevC.76.014606
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2006BU06      Phys.Rev. C 73, 054604 (2006)

J.T.Burke, L.A.Bernstein, J.Escher, L.Ahle, J.A.Church, F.S.Dietrich, K.J.Moody, E.B.Norman, L.Phair, P.Fallon, R.M.Clark, M.A.Deleplanque, M.Descovich, M.Cromaz, I.Y.Lee, A.O.Macchiavelli, M.A.McMahan, L.G.Moretto, E.Rodriguez-Vieitez, F.S.Stephens, H.Ai, C.Plettner, C.Beausang, B.Crider

Deducing the 237U(n, f) cross section using the surrogate ratio method

NUCLEAR REACTIONS 236,238U(α, α'F), E=55 MeV; measured Eα, fission fragment spectra; deduced relative fission yields. 237U(n, F), E=0-20 MeV; deduced fission σ. Surrogate ratio method.

doi: 10.1103/PhysRevC.73.054604
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2006CH14      Phys.Rev. C 73, 034311 (2006)

R.Chankova, A.Schiller, U.Agvaanluvsan, E.Algin, L.A.Bernstein, M.Guttormsen, F.Ingebretsen, T.Lonnroth, S.Messelt, G.E.Mitchell, J.Rekstad, S.Siem, A.C.Larsen, A.Voinov, S.Odegard

Level densities and thermodynamical quantities of heated 93-98Mo isotopes

NUCLEAR REACTIONS 94,96Mo(3He, 3He'), (3He, α), E=30 MeV; 98Mo(3He, 3He'), (3He, α), E=45 MeV; measured particle spectra, Eγ, Iγ, (particle)γ-coin. 93,94,95,96,97,98Mo deduced level densities; deduced thermodynamical quantities, phase transition features.

doi: 10.1103/PhysRevC.73.034311
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2006SC07      Phys.Lett. B 633, 225 (2006)

A.Schiller, A.Voinov, E.Algin, J.A.Becker, L.A.Bernstein, P.E.Garrett, M.Guttormsen, R.O.Nelson, J.Rekstad, S.Siem

Low-energy M1 excitation mode in 172Yb

NUCLEAR REACTIONS 173Yb(3He, α), E=45 MeV; 171Yb(n, γ), E=thermal; measured Eγ, Iγ, (particle)γ-coin, γγ-coin. 172Yb deduced radiative strength functions, resonance multipolarity, B(M1).

doi: 10.1016/j.physletb.2005.12.043
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2006SC17      Phys.Rev. C 74, 017305 (2006)

A.Schiller, A.V.Voinov, E.Algin, L.A.Bernstein, P.E.Garrett, M.Guttormsen, R.O.Nelson, J.Rekstad, S.Siem

Primary versus secondary γ intensities in 171Yb(nth, γ)

NUCLEAR REACTIONS 171Yb(n, γ), E=thermal; measured Eγ, Iγ, γγ-coin; deduced primary and secondary γ intensities.

doi: 10.1103/PhysRevC.74.017305
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2005CH53      Nucl.Phys. A758, 126c (2005)

J.A.Church, L.Ahle, L.A.Bernstein, J.Cooper, F.S.Dietrich, J.Escher, C.Forssen, H.Ai, H.Amro, M.Babilon, C.Beausang, J.Caggiano, A.Heinz, R.Hughes, E.McCutchan, D.Meyer, C.Plettner, J.Ressler, V.Zamfir

Determining neutron capture cross sections with the Surrogate Reaction Technique: Measuring decay probabilities with STARS

NUCLEAR REACTIONS 92Zr(α, α'), (α, 3HeX), (α, tX), (α, dX), (α, pX), E=51 MeV; measured particle spectra. 92Zr(α, α'), (α, xnα), E=51 MeV; measured Eγ, Iγ, αγ-coin. 90,91,92Zr deduced transitions. Surrogate reaction technique.

doi: 10.1016/j.nuclphysa.2005.05.169
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2005CL07      Phys.Rev. C 72, 054605 (2005)

R.M.Clark, L.W.Phair, M.Descovich, M.Cromaz, M.A.Deleplanque, P.Fallon, I.Y.Lee, A.O.Macchiavelli, M.A.McMahan, L.G.Moretto, E.Rodriguez-Vieitez, S.Sinha, F.S.Stephens, D.Ward, M.Wiedeking, L.A.Bernstein, J.T.Burke, J.A.Church

Population of nuclei via 7Li-induced binary reactions

NUCLEAR REACTIONS 184W(7Li, xn), (7Li, xnp), (7Li, xnα), E=35-70 MeV; calculated σ. 184W(7Li, X)184Os/185Os/186Os/188Os/184Ir/185Ir/186Ir/183Re/185Re, E=40-70 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin, particle yield ratios. 160Gd(7Li, xnp), E=35-65 MeV; analyzed σ. Liberace, Stars arrays.

doi: 10.1103/PhysRevC.72.054605
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2005FO05      Phys.Rev. C 71, 064312 (2005)

N.Fotiades, J.A.Cizewski, R.Krucken, R.M.Clark, P.Fallon, I.Y.Lee, A.O.Macchiavelli, D.P.McNabb, J.A.Becker, L.A.Bernstein, W.Younes

High-spin states in N = 50 85Br and 87Rb nuclei

NUCLEAR REACTIONS 173Yb(24Mg, X), E=134.5 MeV; 176Yb(23Na, X), E=129 MeV; 208Pb(18O, X), E=91 MeV; measured Eγ, Iγ, γγ-coin following compound nucleus fission. 85Br, 87Rb deduced high-spin levels, J, π, configurations. Comparison with shell model predictions.

doi: 10.1103/PhysRevC.71.064312
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2005FO06      Phys.Rev. C 71, 064314 (2005)

N.Fotiades, R.O.Nelson, M.Devlin, K.Starosta, J.A.Becker, L.A.Bernstein, P.E.Garrett, W.Younes

States in 197Au from the (n, n'γ) reaction

NUCLEAR REACTIONS 197Au(n, n'γ), E ≈ 2-12 MeV; measured Eγ, Iγ, γγ-coin, excitation functions. 197Au deduced levels, J, π, configurations.

doi: 10.1103/PhysRevC.71.064314
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14021. Data from this article have been entered in the XUNDL database. For more information, click here.


2005FO11      Nucl.Phys. A758, 130c (2005)

C.Forssen, L.Ahle, L.A.Bernstein, J.A.Church, F.S.Dietrich, J.Escher, R.D.Hoffman

Theoretical challenges of determining low-energy neutron-capture cross sections via the Surrogate Technique

doi: 10.1016/j.nuclphysa.2005.05.026
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2005GU16      Phys.Rev. C 71, 044307 (2005)

M.Guttormsen, R.Chankova, U.Agvaanluvsan, E.Algin, L.A.Bernstein, F.Ingebretsen, T.Lonnroth, S.Messelt, G.E.Mitchell, J.Rekstad, A.Schiller, S.Siem, A.C.Sunde, A.Voinov, S.Odegard

Radiative strength functions in 93-98Mo

NUCLEAR REACTIONS 94,96Mo(3He, 3He'), (3He, α), E=30 MeV; 97,98Mo(3He, 3He'), (3He, α), E=45 MeV; measured particle spectra, Eγ, Iγ, (particle)γ-coin. 93,94,95,96,97,98Mo deduced radiative strength functions.

doi: 10.1103/PhysRevC.71.044307
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2005JO03      Phys.Rev. C 71, 024317 (2005)

M.S.Johnson, J.A.Cizewski, M.B.Smith, J.S.Thomas, J.A.Becker, L.A.Bernstein, A.Schiller, D.P.McNabb, P.Fallon, A.O.Macchiavelli

Population of superdeformed excitations in 198Po

NUCLEAR REACTIONS 174Yb(29Si, 5n), E=148 MeV; measured Eγ, Iγ, γγ-coin. 198Po deduced spin-energy entry distributions for superdeformed and normal-deformed rotational bands. Gammasphere array.

doi: 10.1103/PhysRevC.71.024317
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2005JO10      Phys.Rev. C 71, 044310 (2005)

M.S.Johnson, J.A.Cizewski, K.Y.Ding, N.Fotiades, M.B.Smith, J.S.Thomas, W.Younes, J.A.Becker, L.A.Bernstein, K.Hauschild, D.P.McNabb, M.A.Deleplanque, R.M.Diamond, P.Fallon, I.Y.Lee, A.O.Macchiavelli, F.S.Stephens

Quasicontinuous decay and properties of superdeformed excitations in 195Pb

NUCLEAR REACTIONS 174Yb(26Mg, 5n), E=132 MeV; measured Eγ, Iγ, γγ-coin. 195Pb deduced high-spin levels, J, π, superdeformed bands, quasi-continuum decay-out spectra. Gammasphere array.

doi: 10.1103/PhysRevC.71.044310
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2005PL03      Phys.Rev. C 71, 051602 (2005)

C.Plettner, H.Ai, C.W.Beausang, L.A.Bernstein, L.Ahle, H.Amro, M.Babilon, J.T.Burke, J.A.Caggiano, R.F.Casten, J.A.Church, J.R.Cooper, B.Crider, G.Gurdal, A.Heinz, E.A.McCutchan, K.Moody, J.A.Punyon, J.Qian, J.J.Ressler, A.Schiller, E.Williams, W.Younes

Estimation of (n, f) cross sections by measuring reaction probability ratios

NUCLEAR REACTIONS 236,238U(d, pF), (d, d'F), E=24, 32 MeV; measured fission probability ratios. Comparison with results from neutron-induced reactions.

doi: 10.1103/PhysRevC.71.051602
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2005PL05      J.Phys.(London) G31, S1573 (2005)

C.Plettner, H.Ai, C.W.Beausang, L.A.Bernstein, L.Ahle, H.Amro, M.Babilon, J.T.Burke, J.A.Caggiano, R.F.Casten, J.A.Church, J.R.Cooper, B.Crider, G.Gurdal, A.Heinz, E.A.McCutchan, K.Moody, J.A.Punyon, J.Qian, J.J.Ressler, A.Schiller, E.Williams, W.Younes

Measuring reaction probability ratios to simulate neutron-induced cross-sections of short-lived nuclei

NUCLEAR REACTIONS 236,238U(d, d'F), (d, pF), E=24, 32 MeV; measured fragment yields; deduced fission probability ratios vs excitation energy. Surrogate method for neutron-induced fission cross-section determination.

doi: 10.1088/0954-3899/31/10/035
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2005SI07      Acta Phys.Pol. B36, 1089 (2005)

S.Siem, M.Guttormsen, E.Algin, U.Agvaanluvsan, T.Belgya, R.Chankova, G.Mitchell, L.A.Bernstein, J.Rekstad, A.Schiller, A.C.Sunde, N.Syed, A.Voinov

Soft resonances in hot nuclei

NUCLEAR STRUCTURE 93,94,95,96,97,98Mo, 148,149Sm, 161,162Dy, 166,167Er, 171,172Yb; analyzed radiative strength functions, resonance features.


2004AG05      Phys.Rev. C 70, 054611 (2004)

U.Agvaanluvsan, A.Schiller, J.A.Becker, L.A.Bernstein, P.E.Garrett, M.Guttormsen, G.E.Mitchell, J.Rekstad, S.Siem, A.Voinov, W.Younes

Level densities and γ-ray strength functions in 170, 171, 172Yb

NUCLEAR REACTIONS 171Yb(3He, 3He'), (3He, α), E=45 MeV; measured Eγ, Iγ, (particle)γ-coin. 172Yb(3He, 3He'), (3He, α), E=45 MeV; 173Yb(3He, α), E=45 MeV; analyzed Eγ, Iγ, (particle)γ-coin. 170,171,172Yb deduced level densities, radiative strength functions, pygmy resonance features.

doi: 10.1103/PhysRevC.70.054611
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2004FO01      Phys.Rev. C 69, 024601 (2004)

N.Fotiades, G.D.Johns, R.O.Nelson, M.B.Chadwick, M.Devlin, W.S.Wilburn, P.G.Young, J.A.Becker, D.E.Archer, L.A.Bernstein, P.E.Garrett, C.A.McGrath, D.P.McNabb, W.Younes

Measurements and calculations of 238U(n, xnγ) partial γ-ray cross sections

NUCLEAR REACTIONS 238U(n, n'), (n, 2n), (n, 3n), (n, 4n), E=1-100 MeV; measured Eγ, Iγ, σ(E). 238U(n, n'), E < 30 MeV; deduced total σ. 235,236,237,238U deduced levels, transitions. Comparison with model predictions.

doi: 10.1103/PhysRevC.69.024601
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2004GA04      Phys.Rev. C 69, 017302 (2004)

P.E.Garrett, D.E.Archer, J.A.Becker, L.A.Bernstein, K.Hauschild, E.A.Henry, D.P.McNabb, M.A.Stoyer, W.Younes, G.D.Johns, R.O.Nelson, W.S.Wilburn

Rotational bands and isomeric states in 175Lu

NUCLEAR REACTIONS 175Lu(n, n'γ), E ≈ 1-800 MeV; measured prompt and delayed Eγ, Iγ, γγ-coin. 175Lu deduced levels, J, π, configurations, rotational bands, isomeric state T1/2.

doi: 10.1103/PhysRevC.69.017302
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