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NSR database version of May 24, 2024.

Search: Author = R.Nelson

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2020FO05      Phys.Rev. C 101, 064608 (2020)

N.Fotiades, R.O.Nelson, M.Devlin

γ-ray measurements in fast-neutron-induced reactions on 203Tl

NUCLEAR REACTIONS 203Tl(n, n'), (n, 2n), (n, 3n), (n, 4n), (n, 5n), (n, 6n), (n, 7n), (n, 9n), (n, 11n), (n, np), (n, 3np), (n, 4np), (n, 5np), (n, 6np), (n, 7np), (n, 8np), (n, 9np), (n, 11np), 203Tl/202Tl/201Tl/200Tl/199Tl/198Tl/197Tl/195Tl/193Tl/202Hg/200Hg/199Hg/198Hg/197Hg/196Hg/195Hg/194Hg/192Hg, E=1-300 MeV; measured Eγ, Iγ, γγ-coin and excitation function for γ rays in 203Tl, partial gamma σ(E) for Hg isotopes using the GEANIE array for γ detection at the Los Alamos Neutron Science Center Weapons Neutron Research facility. 195,197,199,201,203,205Tl; deduced levels, J, π, candidate for 9/2- intruder state in 203Tl. Systematics of 13/2+ level energies in 197,199,201,203,205,207Pb, and the first 5+ and 7+ level energies in 196,198,200,202,204,206Tl. Comparison with semi-empirical weak-coupling model for levels in 203Tl.

doi: 10.1103/PhysRevC.101.064608
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14658. Data from this article have been entered in the XUNDL database. For more information, click here.


2019FO04      Phys.Rev. C 99, 024606 (2019)

N.Fotiades, P.Casoli, P.Jaffke, M.Devlin, R.O.Nelson, T.Granier, P.Talou, T.Ethvignot

Prompt fission product yields in the 238U(n, f) reaction

NUCLEAR REACTIONS 238U(n, F), E=fast; measured Eγ, Iγ, partial γ-ray σ(E) using GEANIE array for γ detection at the LANSCE-WNR-LANL facility; deduced fission yields of 92Kr, 94,96,98Sr, 100,102,104Zr, 104,106Mo, 128,132Sn, 134,138Te, 138,140Xe, 144,146,148Ba, 150Ce. Comparison with model calculations using CGMF code, and with previous experimental results from γγ-coin technique.

doi: 10.1103/PhysRevC.99.024606
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14522.


2018CA07      Nucl.Data Sheets 148, 143 (2018), Erratum Nucl.Data Sheets 163, 280 (2020)

A.D.Carlson, V.G.Pronyaev, R.Capote, G.M.Hale, Z.-P.Chen, I.Duran, F.-J.Hambsch, S.Kunieda, W.Mannhart, B.Marcinkevicius, R.O.Nelson, D.Neudecker, G.Noguere, M.Paris, S.P.Simakov, P.Schillebeeckx, D.L.Smith, X.Tao, A.Trkov, A.Wallner, W.Wang

Evaluation of the Neutron Data Standards

NUCLEAR REACTIONS H, C(n, n), 6Li(n, t), 10B(n, αγ), 197Au(n, γ), 235,238U, 239Pu(n, F), 238U(n, γ), E<20 MeV; analyzed available data; deduced σ and Maxwellian spectrum averaged cross section for the 197Au(n, γ) σ at 30 keV, covariance matrices of the uncertainties.

RADIOACTIVITY 252Cf(SF); analyzed available data; deduced spontaneous fission neutron spectrum.

doi: 10.1016/j.nds.2018.02.002
Citations: PlumX Metrics


2018DA21      Phys.Rev. C 98, 064606 (2018)

S.J.Daugherty, J.B.Albert, L.J.Kaufman, M.Devlin, N.Fotiades, R.O.Nelson, M.Krticka

Neutron inelastic scattering measurements on 136Xe at En = 0.7 to 100 MeV

NUCLEAR REACTIONS 136Xe(n, n'), (n, 3n), (n, 5n), E=0.7-100 MeV; measured Eγ, Iγ, σ(E) using the GErmanium Array for Neutron Induced Excitations (GEANIE) for γ detection at the Los Alamos Neutron Science Center (LANSCE) Weapons Neutron Research (WNR) facility. 136Xe; deduced levels. Novel calibration method proposed for double-beta decay detectors by observing prompt γ rays form (n, n'). Comparison with other experimental values, and with TALYS simulations.

doi: 10.1103/PhysRevC.98.064606
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14515.


2016FO21      Phys.Rev. C 94, 044608 (2016)

N.Fotiades, M.Devlin, R.O.Nelson, T.Kawano, J.J.Carroll

Feeding of Rh and Ag isomers in fast-neutron-induced reactions

NUCLEAR REACTIONS 103Rh, 109Ag(n, n'γ), (n, 2nγ), (n, 3nγ), E<90 MeV; measured Eγ, Iγ using GEANIE array for γ-ray detection and the broad-spectrum pulsed neutron source of the LANSCE-WNR facility. 101,102,103Rh, 107,108,109Ag; deduced levels, J, π, absolute γ-ray cross sections as function of incident neutron energy, sums of cross sections and compared with evaluated data in ENDF/B-VII.1, 103Rh, 109Ag(n, γ), (n, n'), (n, 2n), (n, 3n), (n, 4n), (n, 5n), (n, p), (n, np), (n, 2np), (n, 3np), (n, d), (n, nd), (n, 2nd), (n, 3nd), (n, α), (n, nα), (n, 2nα), (n, 3nα), (n, t), (n, nt), (n, 2nt), E=6-44 MeV; calculated production cross sections for various reaction channels using the code CoH3.

doi: 10.1103/PhysRevC.94.044608
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14461.


2015CA01      Nucl.Data Sheets 123, 27 (2015)

A.D.Carlson, V.G.Pronyaev, R.Capote, G.M.Hale, F.-J.Hambsch, T.Kawano, S.Kunieda, W.Mannhart, R.O.Nelson, D.Neudecker, P.Schillebeeckx, S.Simakov, D.L.Smith, P.Talou, X.Tao, A.Wallner, W.Wang

Recent Work Leading Towards a New Evaluation of the Neutron Standards

NUCLEAR REACTIONS H, C(n, n), 3He(n, p), 6Li(n, t), 10B(n, α), (n, αγ), Au(n, γ), 235,238U(n, F), E<20 MeV; analyzed available data; deduced neutron σ standards.

doi: 10.1016/j.nds.2014.12.006
Citations: PlumX Metrics


2015FO08      Phys.Rev. C 91, 064614 (2015)

N.Fotiades, M.Devlin, R.C.Haight, R.O.Nelson, S.Kunieda, T.Kawano

α and 2p2n emission in fast neutron-induced reactions on 60Ni

NUCLEAR REACTIONS 60Ni(n, α), (n, nα), (n, 2nα), (n, 3nα), (n, 2n2p), (n, 3n2p), (n, 4n2p), (n, 5n2p), E=1-250 MeV; measured Eγ, Iγ, partial Eγ σ(E) using Germanium Array for Neutron-Induced Excitations (GEANIE) at Los Alamos Neutron Science Center's (LANSC) Weapons Neutron Research facility. 54,55,56,57Fe; deduced levels, J, π. Comparison with Hauser-Feshbach plus pre-equilibrium reaction model calculations using GNASH and CoH3 computer codes. Comparison with previous experimental σ data for 16O, 48Ti, 92Mo(n, α), (n, nα), 51V(p, pα), E=1-150 MeV.

doi: 10.1103/PhysRevC.91.064614
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14359.


2015HA01      Nucl.Data Sheets 123, 130 (2015)

R.C.Haight, C.Y.Wu, H.Y.Lee, T.N.Taddeucci, B.A.Perdue, J.M.O'Donnell, N.Fotiades, M.Devlin, J.L.Ullmann, T.A.Bredeweg, M.Jandel, R.O.Nelson, S.A.Wender, D.Neudecker, M.E.Rising, S.Mosby, S.Sjue, M.C.White, B.Bucher, R.Henderson

The LANL/LLNL Prompt Fission Neutron Spectrum Program at LANSCE and Approach to Uncertainties

NUCLEAR REACTIONS 239Pu(n, F), E<15 MeV; analyzed available data; deduced possible prompt fission neutron spectra σ, yields, correlation matrices.

doi: 10.1016/j.nds.2014.12.023
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2015MA60      Phys.Rev. C 92, 054304 (2015)

D.A.Matters, N.Fotiades, J.J.Carroll, C.J.Chiara, J.W.McClory, T.Kawano, R.O.Nelson, M.Devlin

New transitions and feeding of the Jπ = (8+) isomer in 186Re

NUCLEAR REACTIONS 187Re(n, 2n), E=10-25 MeV; measured Eγ, Iγ, nγ-, γγ-coin, time-of-flight for neutrons, excitation functions using GEANIE array at LANL-Neutron Science Center Weapons Neutron Research facility. 186Re; deduced levels, J, π, improved energy of the long-lived (8+) isomer in 186Re. Comparison with previous experimental results, and with COH 3.4 and TALYS 1.6 calculations.

doi: 10.1103/PhysRevC.92.054304
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14438.


2015TA03      Nucl.Data Sheets 123, 135 (2015)

T.N.Taddeucci, R.C.Haight, H.Y.Lee, D.Neudecker, J.M.O'Donnell, M.C.White, B.A.Perdue, M.Devlin, N.Fotiadis, J.L.Ullmann, R.O.Nelson, T.A.Bredeweg, M.E.Rising, S.K.Sjue, S.A.Wender, C.Y.Wu, R.Henderson

Multiple-scattering Corrections to Measurements of the Prompt Fission Neutron Spectrum

NUCLEAR REACTIONS 239Pu(n, F), E<15 MeV; analyzed available data; deduced response functions, the shape of the prompt fission neutron spectrum.

doi: 10.1016/j.nds.2014.12.024
Citations: PlumX Metrics


2014AR09      Nucl.Data Sheets 119, 392 (2014)

C.W.Arnold, F.Tovesson, K.C.Meierbachtol, A.B.Laptev, T.A.Bredeweg, M.Jandel, R.O.Nelson, M.C.White

Precision Velocity Measurements of Fission Fragments Using the SPIDER Detector

doi: 10.1016/j.nds.2014.08.109
Citations: PlumX Metrics


2014CA16      Nucl.Data Sheets 118, 126 (2014)

A.D.Carlson, V.G.Pronyaev, R.Capote, F.-J.Hambsch, F.Kappeler, C.Lederer, W.Mannhart, A.Mengoni, R.O.Nelson, A.J.M.Plompen, P.Schillebeeckx, S.Simakov, P.Talou, S.Tagesen, H.Vonach, A.Vorobyev, A.Wallner

Improvements and Extensions of the Neutron Cross Section and Fluence Standards

COMPILATION 252Cf(SF);235U(n, F), E=thermal;239Pu(n, F), E=thermal; calculated, evaluated σ, neutron spectra.

doi: 10.1016/j.nds.2014.04.017
Citations: PlumX Metrics


2014CH04      Phys.Rev. C 89, 014611 (2014)

A.Chatillon, G.Belier, T.Granier, B.Laurent, B.Morillon, J.Taieb, R.C.Haight, M.Devlin, R.O.Nelson, S.Noda, J.M.O'Donnell

Measurement of prompt neutron spectra from the 239Pu(n, f) fission reaction for incident neutron energies from 1 to 200 MeV

NUCLEAR REACTIONS 239Pu(n, F), E=1-200 MeV; measured prompt fission neutron spectra (PFNS), E(n), I(n) using FIGARO neutron detector array at WNR-LANSC, LLNL facility; deduced mean neutron energy, evidence for Opening of the second, third and fourth chance fission channels. Comparison with Bruyeres le Chatel (BRC) calculations using Los Alamos model, and with JEFF 3.1 and ENDF/BVII.1 evaluations.

doi: 10.1103/PhysRevC.89.014611
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14379.


2014DE19      Nucl.Data Sheets 120, 48 (2014)

M.Devlin, R.O.Nelson, N.Fotiades, J.M.O'Donnell

New Millisecond Isomer Lifetime Measurements at LANSCE

RADIOACTIVITY 71Ge, 114I, 208Bi, 88Y, 75As(IT); measured decay products, Eγ, Iγ.; deduced isomeric T1/2. Comparison with available data.

doi: 10.1016/j.nds.2014.07.003
Citations: PlumX Metrics


2014FO14      Nucl.Data Sheets 119, 124 (2014)

N.Fotiades, M.Devlin, R.C.Haight, T.Kawano, S.Kunieda, R.O.Nelson

Measurements of Partial γ-ay Cross Sections in 60Ni(n, xnypzαγ) Reactions

NUCLEAR REACTIONS 60Ni(n, xnypzα), E=1-100 MeV[neutrons from W(p, n), E=800 MeV]; measured discrete γ rays using Ge spectrometer GEANIE. 51Cr, 54Mn, 55,56Fe, 57,58,59Co, 58,59,60Ni deduced σ to discrete levels. 60Ni calculated σ to discrete levels using GNASH.

doi: 10.1016/j.nds.2014.08.035
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14359.


2014HA27      Nucl.Data Sheets 119, 205 (2014)

R.C.Haight, H.Y.Lee, T.N.Taddeucci, J.M.O'Donnell, B.A.Perdue, N.Fotiades, M.Devlin, J.L.Ullmann, A.Laptev, T.Bredeweg, M.Jandel, R.O.Nelson, S.A.Wender, M.C.White, C.Y.Wu, E.Kwan, A.Chyzh, R.Henderson, J.Gostic

The Prompt Fission Neutron Spectrum (PFNS) Measurement Program at LANSCE

doi: 10.1016/j.nds.2014.08.057
Citations: PlumX Metrics


2014KW05      Nucl.Data Sheets 119, 221 (2014)

E.Kwan, C.Y.Wu, R.C.Haight, H.Y.Lee, T.A.Bredeweg, A.Chyzh, M.Devlin, N.Fotiades, J.M.Gostic, R.A.Henderson, M.Jandel, A.Laptev, R.O.Nelson, J.M.O'Donnell, B.A.Perdue, T.N.Taddeucci, J.L.Ullmann, S.A.Wender

Prompt Fission γ-rays Measured Using Liquid Scintillators

NUCLEAR REACTIONS 235U(n, F), E=1-20 MeV; measured prompt Eγ, Iγ, γγ-coin using FIGARO; deduced γ-ray spectrum, unfolded using SVD and iterative Bayesian techniques. Compared to 235Cf(SF).

RADIOACTIVITY 235Cf(SF); measured prompt Eγ, Iγ, γγ-coin using FIGARO; deduced γ-ray spectrum, unfolded using SVD and iterative Bayesian techniques. Compared to 235U(n, F).

doi: 10.1016/j.nds.2014.08.061
Citations: PlumX Metrics


2014LA31      Nucl.Instrum.Methods Phys.Res. A 745, 99 (2014)

B.Laurent, T.Granier, G.Belier, A.Chatillon, J.-F.Martin, J.Taieb, F.-J.Hambsch, F.Tovesson, A.B.Laptev, R.C.Haight, R.O.Nelson, J.M.O'Donnell

A new neutron counter for fission research

NUCLEAR REACTIONS 238U(n, f), E=1.3-19.1 MeV; measured products; deduced miscellaneous fission parameters. Data were imported from EXFOR entry 14384.

doi: 10.1016/j.nima.2014.01.063
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14384.


2014ME10      Nucl.Data Sheets 119, 389 (2014)

K.Meierbachtol, F.Tovesson, C.W.Arnold, A.B.Laptev, T.A.Bredeweg, M.Jandel, R.O.Nelson, M.C.White

Development of an Ionization Chamber for the SPIDER Fission Fragment Detector

doi: 10.1016/j.nds.2014.08.108
Citations: PlumX Metrics


2014PE14      Nucl.Data Sheets 119, 371 (2014)

B.A.Perdue, T.N.Taddeucci, R.C.Haight, T.Bredeweg, M.Devlin, N.Fotiades, M.Jandel, A.Laptev, H.Y.Lee, R.O.Nelson, J.M.O'Donnell, J.L.Ullmann, S.A.Wender, C.Y.Wu, E.Kwan, A.Chyzh, R.A.Henderson, J.M.Gostic

Development of an Array of Liquid Scintillators to Measure the Prompt Fission Neutron Spectrum at LANSCE

doi: 10.1016/j.nds.2014.08.102
Citations: PlumX Metrics


2013BO14      Phys.Rev. C 87, 064607 (2013)

M.S.Boswell, S.R.Elliott, D.V.Perepelitsa, M.Devlin, N.Fotiades, R.O.Nelson, T.Kawano, V.E.Guiseppe

Neutron inelastic scattering in natural Cu as a background in neutrinoless double-β decay experiments

NUCLEAR REACTIONS 63,65Cu(n, n'), (n, 2n), E=0.2-800 MeV; measured Eγ, Iγ for 119 γ rays, γ-ray production σ(E) and level σ(E) by activation technique using GEANIE spectrometer at LANSC facility. Natural Cu target. GEANT4 simulations of γ-ray spectra and total σ(E) and compared with experimental data for benchmarking of background events in double β decay experiments. Comparison with statistical model calculations and with evaluated data library ENDF/B-VII. Estimated γ-ray production σ of 16 γ rays in Cu isotopes for E(n)=2.897-4.196 MeV which are potential background lines in 0νββ decay experiments for 48Ca, 76Ge, 84Se, 96Zr, 100Mo, 116Cd, 130Te and 150Nd isotopes.

doi: 10.1103/PhysRevC.87.064607
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14370.


2013FO13      Phys.Rev. C 87, 044336 (2013)

N.Fotiades, M.Devlin, R.O.Nelson, T.Granier

Low-spin states in 86Kr from the (n, n') reaction

NUCLEAR REACTIONS 86Kr(n, n'), E=1-20 MeV; measured Eγ, Iγ, E(n), I(n) by time-of-flight, σ(E) using GEANIE spectrometer at the LANSCE, WNR facility. 86Kr; deduced levels, J, π. Comparison with shell-model calculations.

doi: 10.1103/PhysRevC.87.044336
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14368. Data from this article have been entered in the XUNDL database. For more information, click here.


2013GR14      Eur.Phys.J. A 49, 114 (2013)

T.Granier, R.O.Nelson, T.Ethvignot, M.Devlin, N.Fotiades, P.E.Garrett, W.Younes

Measurement of prompt X-rays in 238U(n, f) from threshold to 400 MeV - Investigation of fission charge yield evolution

NUCLEAR REACTIONS 238U(n, F), E=0.7-400 MeV; measured prompt Kα, Kβ X-ray emission from fission fragments; deduced atomic X-ray yields per fission; calculated atomic X-ray yields per fission vs neutron energy, mean K X-ray emission probabilities pre fragment vs Z and neutron energy. Compared with published calculations.

doi: 10.1140/epja/i2013-13114-8
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14377.


2013NE01      Phys.Rev. C 87, 014908 (2013)

R.E.Nelson, R.Vogt, A.D.Frawley

Narrowing the uncertainty on the total charm cross section and its effect on the J/ψ cross section

doi: 10.1103/PhysRevC.87.014908
Citations: PlumX Metrics


2013VO11      Nucl.Phys. 910-911, 231c (2013)

R.Vogt, R.E.Nelson, A.D.Frawley

Improving the J/ψ Production Baseline at RHIC and the LHC

doi: 10.1016/j.nuclphysa.2012.12.106
Citations: PlumX Metrics


2012KW01      Nucl.Instrum.Methods Phys.Res. A688, 55 (2012)

E.Kwan, C.Y.Wu, R.C.Haight, H.Y.Lee, T.A.Bredeweg, A.Chyzh, M.Devlin, N.Fotiades, J.M.Gostic, R.A.Henderson, M.Jandel, A.Laptev, R.O.Nelson, J.M.O'Donnell, B.A.Perdue, T.N.Taddeucci, J.L.Ullmann, S.A.Wender

Prompt energy distribution of 235U(n, f)γ at bombarding energies of 1-20 MeV

NUCLEAR REACTIONS 235U(n, F), E=1-20 MeV; measured reaction products, Eγ, Iγ; deduced prompt γ-rays distribution. Comparison with GEANT4 simulations.

RADIOACTIVITY 252Cf(SF); measured decay products, Eγ, Iγ; deduced prompt γ-rays distribution. Comparison with GEANT4 simulations.

doi: 10.1016/j.nima.2012.06.003
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14413.


2012MA23      Phys.Rev. C 85, 064614 (2012)

S.MacMullin, M.Boswell, M.Devlin, S.R.Elliott, N.Fotiades, V.E.Guiseppe, R.Henning, T.Kawano, B.H.LaRoque, R.O.Nelson, J.M.O'Donnell

Partial γ-ray production cross sections for (n, xnγ) reactions in natural argon at 1-30 MeV

NUCLEAR REACTIONS Ar(n, xnγ)39Ar/40Ar, E=1-30 MeV; measured Eγ, Iγ, E(n), time-of-flight, partial γ-ray σ(E) for six excited states in 40Ar and two excited states in 39Ar, elastic and inelastic neutron scattering cross sections. GEANIE array at LANSCE facility. Comparison with calculations using TALYS and CoH3 reaction codes. Relevance to identification of potential backgrounds in neutrinoless double-β decay, dark matter and WIMP experiments.

doi: 10.1103/PhysRevC.85.064614
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14341.


2012MA59      Phys.Rev. C 86, 067601 (2012)

S.MacMullin, M.Boswell, M.Devlin, S.R.Elliott, N.Fotiades, V.E.Guiseppe, R.Henning, T.Kawano, B.H.LaRoque, R.O.Nelson, J.M.O'Donnell

Neutron-induced γ-ray production cross sections for the first excited-state transitions in 20Ne and 22Ne

NUCLEAR REACTIONS 20,22Ne(n, n), (n, n'), E=1-100 MeV; measured Eγ, Iγ using GEANIE array at LANSCE facility; deduced σ for population of first 2+ and 4+ states in 20,22Ne, σ for elastic to γ-ray production channel. Comparison with TALYS and CoH3 calculations.

doi: 10.1103/PhysRevC.86.067601
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14352.


2011CA23      J.Korean Phys.Soc. 59, 1390s (2011)

A.D.Carlson, V.G.Pronyaev, F.-J.Hambsch, W.Mannhart, A.Mengoni, R.O.Nelson, P.Talou, S.Tagesen, H.Vonach

An Update of the Nuclear Data Standards Activities

COMPILATION 239Pu(n, F), E=0.5-200 MeV; compiled recent σ data, ENDF/B-VII, JENDL-3.3. 235U(n, F), E=thermal; compiled recent σ(En) data (relative to Maxwellian), ENDF/B-VII. 197Au(n, γ), E=6-600 keV; compiled recent σ data, ENDF/B-VII. Note: Plot is shifted by 6 orders in energy!

doi: 10.3938/jkps.59.1390
Citations: PlumX Metrics


2011DO22      Nucl.Phys. B(Proc.Supp.) S221, 341 (2011)

M.J.Dolinski, M.Devlin, N.Fotiadis, P.E.Garrett, R.O.Nelson, E.B.Norman, W.Younes

Cross sections for neutron interactions in the CUORE neutrinoless double beta decay experiment

doi: 10.1016/j.nuclphysbps.2011.09.041
Citations: PlumX Metrics


2011FO15      Phys.Rev. C 84, 054310 (2011)

N.Fotiades, M.Devlin, R.O.Nelson, J.A.Cizewski, R.Krucken, R.M.Clark, P.Fallon, I.Y.Lee, A.O.Macchiavelli, W.Younes

States built on the 10+ isomers in 118, 120, 122, 124Sn

NUCLEAR REACTIONS 124Sn(n, xn), E=800 MeV; 173Yb(24Mg, X), E=134.5 MeV; 176Yb(23Na, X), E=129 MeV; 208Pb(18O, X), E=91 MeV; measured Eγ, Iγ, γγ-coin, excitation functions for (n, xn) reaction. Gammasphere array for heavy-ion reactions, and GEANIE spectrometer for neutron-induced reactions. 118,120,122,124Sn; deduced levels, J, π above 10+ isomer in fusion-fission reactions, configurations. 95,96,97Nb, 95,96,97,98,99,100Zr, 116,117,119Sn; measured Eγ, γγ-coin for complementary isotopes in the fission process. Systematics of 10+ and 12+ states in A=116-130 even-mass Sn isotopes. Comparison with Shell model calculations.

doi: 10.1103/PhysRevC.84.054310
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Data from this article have been entered in the XUNDL database. For more information, click here.


2011NE06      Nucl.Phys. A855, 400c (2011)

R.Nelson, R.Vogt, C.Lourenco, H.Wohri

Bottom production from fixed-target to LHC energies

doi: 10.1016/j.nuclphysa.2011.02.090
Citations: PlumX Metrics


2011NE12      J.Korean Phys.Soc. 59, 1558s (2011)

R.O.Nelson

LANSCE Nuclear Science Facilities and Activities

doi: 10.3938/jkps.59.1558
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2011NO02      Phys.Rev. C 83, 034604 (2011)

S.Noda, R.C.Haight, R.O.Nelson, M.Devlin, J.M.O'Donnell, A.Chatillon, T.Granier, G.Belier, J.Taieb, T.Kawano, P.Talou

Prompt fission neutron spectra from fission induced by 1 to 8 MeV neutrons on 235U and 239Pu using the double time-of-flight technique

NUCLEAR REACTIONS 235U, 239Pu(n, F), E=1-200 MeV; measured En, In, using double time-of-flight technique; deduced yields. Comparison with Los Alamos model calculations and with Evaluated Nuclear Data File (ENDF/B-VII.0).

doi: 10.1103/PhysRevC.83.034604
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14290.


2010DA13      Nucl.Instrum.Methods Phys.Res. B268, 114 (2010)

D.Dashdorj, G.E.Mitchell, T.Kawano, M.Devlin, N.Fotiades, R.O.Nelson, J.A.Becker, C.Y.Wu, P.E.Garrett, S.Kuneida

(n, 2n) and (n, 3n) cross-sections of neutron-induced reactions on 150Sm for En=1-35 MeV

NUCLEAR REACTIONS 150Sm(n, 2n), (n, 3n), (n, 2nγ), (n, 3nγ), E<35 MeV; measured TOF, Eγ, Iγ; deduced σ. Comparison with FKK GNASH calculations.

doi: 10.1016/j.nimb.2009.10.189
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2010FO01      Phys.Rev. C 81, 037304 (2010)

N.Fotiades, R.O.Nelson, M.Devlin

First 3- excited state of 56Fe

NUCLEAR REACTIONS 56Fe(n, n'γ), E=1-250 MeV; measured Eγ, Iγ, γγ-coin using GEANIE array. 56Fe; deduced levels, J, π. Discussed first 3- state in 56Fe.

doi: 10.1103/PhysRevC.81.037304
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2010WA07      J.Nucl.Sci.Technol.(Tokyo) 47, 470 (2010)

T.Watanabe, T.Kawano, M.B.Chadwick, R.O.Nelson, S.Hilaire, E.Bauge, P.Dossantos-Uzarralde

Calculation of Prompt Fission Product Average Cross Sections for Neutron-Induced Fission of 235U and 239Pu

NUCLEAR REACTIONS 235U, 239Pu(n, γ), (n, 2n), (n, 3n), E=0-20 MeV; calculated σ, fission product yields. EMPIRE, TALYS, GNASH codes.

doi: 10.3327/jnst.47.470
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2009FO07      Phys.Rev. C 80, 044612 (2009)

N.Fotiades, R.O.Nelson, M.Devlin, S.Holloway, T.Kawano, P.Talou, M.B.Chadwick, J.A.Becker, P.E.Garrett

Feeding of the 11/2- isomers in stable Ir and Au isotopes

NUCLEAR REACTIONS 191,193Ir, 197Au(n, n'γ), E<20 MeV; measured Eγ, Iγ, σ, half-lives of 11/2- isomers using GEANIE array. 191m,193mIr, 197mAu; deduced levels, J, π, multipolarities. Comparison of measured σ with predictions from FKK-GNASH reaction model.

doi: 10.1103/PhysRevC.80.044612
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2009GU12      Phys.Rev. C 79, 054604 (2009)

V.E.Guiseppe, M.Devlin, S.R.Elliott, N.Fotiades, A.Hime, D.-M.Mei, R.O.Nelson, D.V.Perepelitsa

Neutron inelastic scattering and reactions in natural Pb as a background in neutrinoless double-β-decay experiments

NUCLEAR REACTIONS Pb(n, xn), E=2.87-200 MeV; measured Eγ, Iγ, σ. Estimated contribution from background radiation produced in Pb(n, xn) reactions in experiments to detect neutrinoless double-β decay of 76Ge, 82Se, 100Mo, 130Te, 136Xe and 150Nd

doi: 10.1103/PhysRevC.79.054604
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2009HU09      Phys.Rev. C 80, 014603 (2009)

A.Hutcheson, C.Angell, J.A.Becker, A.S.Crowell, D.Dashdorj, B.Fallin, N.Fotiades, C.R.Howell, H.J.Karwowski, T.Kawano, J.H.Kelley, E.Kwan, R.A.Macri, R.O.Nelson, R.S.Pedroni, A.P.Tonchev, W.Tornow

Cross sections for 238U(n, n'γ) and 238U(n, 2nγ) reactions at incident neutron energies between 5 and 14 MeV

NUCLEAR REACTIONS 238U(n, n'γ), (n, 2nγ), E=5-14 MeV; measured Eγ, yields, σ and excitation functions. Comparison with existing data and calculations using the GNASH and TALYS Hauser-Feshbach statistical-model codes.

doi: 10.1103/PhysRevC.80.014603
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2008FO03      Phys.Rev. C 77, 024306 (2008)

N.Fotiades, R.O.Nelson, M.Devlin, J.A.Becker

New levels and a lifetime measurement in 204Tl

NUCLEAR REACTIONS 205Tl(n, 2nγ), E<25 MeV; measured Eγ, Iγ, γγ-coin, half-lives; 204Tl; deduced levels, J, π, configurations. 196,198,200,202,206Tl; systematics.

doi: 10.1103/PhysRevC.77.024306
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2007CH80      Nucl.Data Sheets 108, 2742 (2007)

M.B.Chadwick, T.Kawano, P.Talou, E.Bauge, S.Hilaire, P.Dossantos-Uzarralde, P.E.Garrett, J.A.Becker, R.O.Nelson

Yttrium ENDF/B-VII Data from Theory and LANSCE/GEANIE Measurements and Covariances Estimated using Bayesian and Monte-Carlo Methods

NUCLEAR REACTIONS 89Y(n, X), E< 30 MeV; evaluated cross sections, estimated uncertainties.

doi: 10.1016/j.nds.2007.11.004
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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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2007DA23      Nucl.Instrum.Methods Phys.Res. B261, 948 (2007)

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

Neutron induced inelastic cross-sections of 150Sm for En = 1-35 MeV

NUCLEAR REACTIONS 150Sm(n, γ), E=1-35 MeV; measured Eγ, Iγ, excitation functions and partial γ-ray production cross sections. Compared results to model calculations.

doi: 10.1016/j.nimb.2007.04.161
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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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2007FO03      Phys.Rev. C 75, 054322 (2007)

N.Fotiades, R.O.Nelson, M.Devlin, J.A.Cizewski, J.A.Becker, W.Younes, R.Krucken, R.M.Clark, P.Fallon, I.Y.Lee, A.O.Macchiavelli, T.Ethvignot, T.Granier

High-spin states in 135Xe

RADIOACTIVITY 135Xe; measured Eγ, Iγ, γγ-coinc. Deduced high spin level structure, J, π.

NUCLEAR REACTIONS 136Xe(n, 2nγ), E not given; measured excitation functions.

doi: 10.1103/PhysRevC.75.054322
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2007FO06      Phys.Rev. C 76, 014302 (2007)

N.Fotiades, R.O.Nelson, M.Devlin, J.A.Becker

New levels and a lifetime measurement in 202Tl

NUCLEAR REACTIONS 203Tl(n, 2nγ), E=0.6-250 MeV; measured Eγ, Iγ, γγ-coinc, and excitation functions. 202Tl deduced levels, J, π.

doi: 10.1103/PhysRevC.76.014302
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2006AK06      Nucl.Instrum.Methods Phys.Res. A559, 390 (2006)

D.S.Akerib, M.J.Attisha, C.N.Bailey, L.Baudis, D.A.Bauer, P.L.Brink, P.P.Brusov, R.Bunker, B.Cabrera, D.O.Caldwell, C.L.Chang, J.Cooley, M.B.Crisler, P.Cushman, M.Daal, R.Dixon, M.R.Dragowsky, D.D.Driscoll, L.Duong, R.Ferril, J.Filippini, R.J.Gaitskell, S.R.Golwala, D.R.Grant, R.Hennings-Yeomans, D.Holmgren, M.E.Huber, S.Kamat, S.Leclercq, A.Lu, R.Mahapatra, V.Mandic, P.Meunier, N.Mirabolfathi, H.Nelson, R.Nelson, R.W.Ogburn, T.A.Perera, M.Pyle, E.Ramberg, A.Reisetter, R.R.Ross, B.Sadoulet, J.Sander, C.Savage, R.W.Schnee, D.N.Seitz, B.Serfass, K.M.Sundqvist, J.-P.F.Thompson, G.Wang, S.Yellin, J.Yoo, B.A.Young

Limits on WIMP-nucleon interactions from the Cryogenic Dark Matter Search at the Soudan Underground Laboratory

doi: 10.1016/j.nima.2005.12.018
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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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2005ET01      Phys.Rev.Lett. 94, 052701 (2005)

T.Ethvignot, M.Devlin, H.Duarte, T.Granier, R.C.Haight, B.Morillon, R.O.Nelson, J.M.O'Donnell, D.Rochman

Neutron Multiplicity in the Fission of 238U and 235U with Neutrons up to 200 MeV

NUCLEAR REACTIONS 235,238U(n, F), E=0.4-200 MeV; measured prompt fission neutron spectra, multiplicities. Comparison with model predictions.

doi: 10.1103/PhysRevLett.94.052701
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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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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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2004VO17      Yad.Fiz. 67, 1891 (2004); Phys.Atomic Nuclei 67, 1866 (2004)

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

Nature of the Pygmy Resonance in Continuous γ Spectra

NUCLEAR REACTIONS 171Yb(n, γ), E=thermal; measured Eγ, Iγ, γγ-coin; deduced pygmy resonance energy, width.

doi: 10.1134/1.1811192
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2003ET01      Phys.Lett. B 575, 221 (2003)

T.Ethvignot, M.Devlin, R.Drosg, T.Granier, R.C.Haight, B.Morillon, R.O.Nelson, J.M.O'Donnell, D.Rochman

Prompt-fission-neutron average energy for 238U(n, f) from threshold to 200 MeV

NUCLEAR REACTIONS 238U(n, F), E=threshold-200 MeV; measured prompt fission neutron spectra. Comparison with model predictions.

doi: 10.1016/j.physletb.2003.09.048
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2003GA23      Phys.Rev. C 68, 024312 (2003)

P.E.Garrett, W.Younes, J.A.Becker, L.A.Bernstein, E.M.Baum, D.P.DiPrete, R.A.Gatenby, E.L.Johnson, C.A.McGrath, S.W.Yates, M.Devlin, N.Fotiades, R.O.Nelson, B.A.Brown

Nuclear structure of the closed subshell nucleus 90Zr studied with the (n, n, 'γ) reaction

NUCLEAR REACTIONS 90Zr(n, n'γ), E ≈ 1-20 MeV; measured Eγ, Iγ, γγ-coin, excitation functions, DSA. 90Zr deduced levels, J, π, configurations, T1/2, B(E1), B(E2), B(M1). Geanie array, comparisons with model predictions.

doi: 10.1103/PhysRevC.68.024312
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2002BE08      Phys.Rev. C65, 021601 (2002)

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

239Pu(n, 2n)238Pu Cross Section Deduced using a Combination of Experiment and Theory

NUCLEAR REACTIONS 239Pu(n, 2n), E < 20 MeV; measured Eγ, Iγ, partial γ-ray σ; deduced σ, possible nuclear structure effects. Comparisons with model predictions. Geanie array.

doi: 10.1103/PhysRevC.65.021601
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2002NE02      Nucl.Sci.Eng. 140, 195 (2002)

R.O.Nelson, A.Michaudon

High-Resolution Cross-Section Measurements for Production of the 0.478-MeV Gamma Ray from the 9Be(n, xγ)7Li Reaction for Neutron Energies between 12 and 200 MeV with Insight into the 10Be Level Scheme

NUCLEAR REACTIONS 9Be(n, tγ), (n, t), E=12-200 MeV; measured Eγ, Iγ, σ. 10Be deduced level energies.

doi: 10.13182/NSE02-A2256
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2002TA14      Phys.Rev. C65, 064309 (2002)

E.Tavukcu, L.A.Bernstein, K.Hauschild, J.A.Becker, P.E.Garrett, C.A.McGrath, D.P.McNabb, W.Younes, P.Navratil, R.O.Nelson, G.D.Johns, G.E.Mitchell, J.A.Cizewski

State in 196Pt Observed with the (n, n'γ) Reaction

NUCLEAR REACTIONS 196Pt(n, n'γ), E=1-8 MeV; measured Eγ, Iγ, γγ-coin; deduced γ-ray excitation functions. 196Pt deduced levels, J, π. Geanie array, interacting boson model calculations.

doi: 10.1103/PhysRevC.65.064309
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2001BE11      Nucl.Phys. A682, 404c (2001)

L.A.Bernstein, D.E.Archer, J.A.Becker, P.E.Garrett, K.Hauschild, C.A.McGrath, D.P.McNabb, W.Younes, M.Devlin, D.M.Drake, G.D.Johns, R.O.Nelson

Studying the Role of Nuclear Structure Effects in Neutron-Induced Reactions using GEANIE at LANSCE

NUCLEAR REACTIONS 92Mo(n, xnypzα)91Nb/88Zr/89Zr/91Mo/92Mo/84Sr, E ≈ 1-600 MeV; measured Eγ, Iγ, γ-ray excitation functions. 91Mo deduced isomer T1/2. 239Pu(n, 2n), E=5-20 MeV; measured σ. 235U(n, F), E=0-250 MeV; measured fission yields. Geanie array.

doi: 10.1016/S0375-9474(00)00667-9
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2001NE09      Nucl.Sci.Eng. 138, 105 (2001)

R.O.Nelson, M.B.Chadwick, A.Michaudon, P.G.Young

High-Resolution Measurements and Calculations of Photon-Production Cross Sections for 16O(n, xγ) Reactions Induced by Neutrons with Energies between 4 and 200 MeV

NUCLEAR REACTIONS 16O(n, γX)7Li/12C/13C/14N/15N/16N/15O/16O, E=4-200 MeV; measured Eγ, Iγ, photon production σ(E), σ(θ). Comparison with model calculations, previous measurements.

doi: 10.13182/NSE01-A2205
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2001TA31      Phys.Rev. C64, 054614 (2001)

E.Tavukcu, L.A.Bernstein, K.Hauschild, J.A.Becker, P.E.Garrett, C.A.McGrath, D.P.McNabb, W.Younes, M.B.Chadwick, R.O.Nelson, G.D.Johns, G.E.Mitchell

196Pt(n, xnypγ) Reactions using Spallation Neutrons from En = 1 to 250 MeV

NUCLEAR REACTIONS 196Pt(n, xnyp)184Pt/186Pt/188Pt/190Pt/191Pt/192Pt/193Pt/194Pt/194Pt/196Pt/189Ir/191Ir/193Ir, E=1-250 MeV; measured prompt Eγ, Iγ, γγ-coin; deduced γ-ray excitation functions. Comparison with model predictions.

doi: 10.1103/PhysRevC.64.054614
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2001YO10      Phys.Rev. C64, 054613 (2001)

W.Younes, J.A.Becker, L.A.Bernstein, P.E.Garrett, C.A.McGrath, D.P.McNabb, R.O.Nelson, G.D.Johns, W.S.Wilburn, D.M.Drake

Transition from Asymmetric to Symmetric Fission in the 235U(n, f) Reaction

NUCLEAR REACTIONS 235U(n, F), E=1-250 MeV; measured prompt Eγ, Iγ, γγ-coin; deduced γ-ray yields, fission fragment charge and mass distributions vs excitation energy. Disappearance of shell structure at high excitation energy discussed.

doi: 10.1103/PhysRevC.64.054613
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2000GA30      Phys.Rev. C62, 014307 (2000)

P.E.Garrett, L.A.Bernstein, J.A.Becker, K.Hauschild, C.A.McGrath, D.P.McNabb, W.Younes, E.Tavukcu, G.D.Johns, R.O.Nelson, W.S.Wilburn, S.W.Yates

States in 92Mo Observed with the (n, n'γ) Reaction with Spallation Neutrons

NUCLEAR REACTIONS 92Mo(n, n'), E=8-800 MeV; measured Eγ, Iγ, γγ-coin. 92Mo deduced levels, J, π. Geanie array.

doi: 10.1103/PhysRevC.62.014307
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2000GA46      Phys.Rev. C62, 054608 (2000)

P.E.Garrett, L.A.Bernstein, J.A.Becker, K.Hauschild, C.A.McGrath, D.P.McNabb, W.Younes, M.B.Chadwick, G.D.Johns, R.O.Nelson, W.S.Wilburn, E.Tavukcu, S.W.Yates

92Mo(n, xnypzαγ) Reactions for Neutron Energies up to 250 MeV

NUCLEAR REACTIONS 92Mo(n, xnypzα)92Mo/91Mo/90Mo/89Mo/88Mo/92Nb/91Nb/90Nb/89Nb/88Nb/91Zr/90Zr/89Zr/88Zr/87Zr/86Zr/88Y/86Y/85Y/84Y/86Sr/85Sr/84Sr/83Sr/82Sr/80Sr, E=2-250 MeV; measured Eγ, Iγ(t), γγ-coin; deduced excitation functions, isomer yields. Comparison with model predictions.

doi: 10.1103/PhysRevC.62.054608
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1998BE21      Phys.Rev. C57, R2799 (1998)

L.A.Bernstein, J.A.Becker, W.Younes, D.E.Archer, K.Hauschild, G.D.Johns, R.O.Nelson, W.S.Wilburn, D.M.Drake

Probing Reaction Dynamics with the 196Pt(n, xnγ) Reactions for x ≤ 15

NUCLEAR REACTIONS 196Pt(n, xn), E=3-250 MeV; measured Eγ, Iγ; deduced fractional yields. Model comparison.

doi: 10.1103/PhysRevC.57.R2799
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1998PA10      Phys.Rev. C57, 2416 (1998)

A.Pavlik, H.Hitzenberger-Schauer, H.Vonach, M.B.Chadwick, R.C.Haight, R.O.Nelson, P.G.Young

27Al(n, xγ) Reactions for Neutron Energies from 3 to 400 MeV

NUCLEAR REACTIONS 27Al(n, X)27Al/26Al/27Mg/26Mg/25Mg/24Mg/23Na/22Ne/21Ne/20Ne/18F, E=3-400 MeV; measured Eγ, Iγ; deduced yields, excitation functions. Comparison with multiple preequilibrium particle emission calculations.

doi: 10.1103/PhysRevC.57.2416
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1995BR14      Phys.Lett. 349B, 272 (1995)

F.P.Brady, J.L.Romero, D.R.Mayo, J.E.Koster, R.O.Nelson, S.A.Wender

' Photon Spectrum of the Neutron-Proton Bremsstrahlung at 170 MeV ': Contributions of np → dγ to inclusive photon energy spectra from np and pd collisions near 200 MeV

NUCLEAR REACTIONS 1H(n, γ), E=170 MeV; 2H(p, γ), E=195, 200 MeV; analyzed σ(θ, Eγ) data; deduced capture process role in reaction, implications to free np bremsstrahlung.

doi: 10.1016/0370-2693(95)00209-4
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1994VO16      Phys.Rev. C50, 1952 (1994)

H.Vonach, A.Pavlik, M.B.Chadwick, R.C.Haight, R.O.Nelson, S.A.Wender, P.G.Young

207,208Pb(n, xnγ) Reactions for Neutron Energies from 3 to 200 MeV

NUCLEAR REACTIONS 207,208Pb(n, xn), E=3-200 MeV; measured Eγ, Iγ; calculated γ production σ(E), x ≤ 9; deduced multiple preequilibrium emission role. Exciton, Hauser-Feshbach, coupled-channels models.

doi: 10.1103/PhysRevC.50.1952
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1993DR04      Nucl.Instrum.Methods Phys.Res. B73, 392 (1993)

M.Drosg, D.M.Drake, R.C.Haight, R.O.Nelson

Fast Neutron Yield from 20-MeV Tritons on Water Part II. Triton Interaction with Heavy Water

NUCLEAR REACTIONS 2H, 16O(t, n), E=20 MeV; measured σ(θn, En); deduced neutron yield for 16O(t, n), 2H+t breakup reactions. Heavy water target.

doi: 10.1016/0168-583X(93)95757-V
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1993KO53      Nucl.Instrum.Methods Phys.Res. B79, 297 (1993)

J.E.Koster, R.O.Nelson, M.E.Schillaci, S.A.Wender, D.Mayo, F.P.Brady, J.Romero, D.Krofcheck, M.Blann, P.Anthony, V.R.Brown, L.Hansen, B.Pohl, T.C.Sangster, H.Nifenecker, J.A.Pinston

Neutron-Proton Bremsstrahlung Experiments

NUCLEAR REACTIONS 1H(n, γ), E=138-401 MeV; measured γ rays. Tof techniques.

doi: 10.1016/0168-583X(93)95348-9
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1993WE13      Nucl.Instrum.Methods Phys.Res. A336, 226 (1993)

S.A.Wender, S.Balestrini, A.Brown, R.C.Haight, C.M.Laymon, T.M.Lee, P.W.Lisowski, W.McCorkle, R.O.Nelson, W.Parker, N.W.Hill

A Fission Ionization Detector for Neutron Flux Measurements at a Spallation Source

doi: 10.1016/0168-9002(93)91102-S
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1992EC01      Z.Phys. A343, 267 (1992)

G.Eckert, K.Stelzer, R.O.Nelson, Th.W.Elze, Th.Happ, H.J.Wollersheim, H.Emling, H.Grein, W.Henning, R.Kulessa, E.Lubkiewicz, Ch.Lauterbach

Inelastic Scattering and Nucleon Transfer in the System 232Th + 206Pb Near the Coulomb Barrier

NUCLEAR REACTIONS 232Th(206Pb, X), (206Pb, 206Pb'), (206Pb, 208Pb), E=6.4 MeV/nucleon; measured (particle)(particle)γ-coin, Eγ, Iγ; deduced average Eγ, γ-multiplicity, transfer reaction mechanism. 232,230Th deduced ground state band transitions Iγ.

doi: 10.1007/BF01291525
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1992LA20      Phys.Rev. C46, 1880 (1992)

C.M.Laymon, R.O.Nelson, S.A.Wender, L.R.Nilsson

Isovector Giant Quadrupole Resonance in the 40Ca(n, γ0) Reaction

NUCLEAR REACTIONS 40Ca(n, γ), E=8-44 MeV; measured σ(θ) vs E, γ-asymmetry. 41Ca deduced isovector GQR parameters.

doi: 10.1103/PhysRevC.46.1880
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1991NE07      Nucl.Instrum.Methods Phys.Res. B56/57, 451 (1991)

R.O.Nelson, C.M.Laymon, S.A.Wender

High-Resolution Inelastic Gamma-Ray Measurements with a White Neutron Source from 1 to 200 MeV

NUCLEAR REACTIONS 56Fe(n, X), E=27.1-29 MeV; measured Eγ, Iγ for X=2n, n, np, 3n, nα. 56Fe(n, n'), (n, 2n), E ≤ 200 MeV; measured σ(θ) vs E. White neutron source.

doi: 10.1016/0168-583X(91)96068-V
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1988WE06      J.Phys.(London) G14, Supplement S417 (1988)

S.A.Wender, S.J.Seestrom-Morris, R.O.Nelson

A White Neutron Source from 1 to 400 MeV

NUCLEAR REACTIONS 12C(n, n'γ), E=5-25 meV; measured σ(E).

doi: 10.1088/0305-4616/14/S/041
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1988WE19      Nucl.Instrum.Methods Phys.Res. A270, 467 (1988)

C.R.Westerfeldt, R.O.Nelson, E.G.Bilpuch, G.E.Mitchell

A Microcomputer-Based System for Measuring Excitation Functions with Good Energy Resolution

NUCLEAR REACTIONS 27Al(p, γ), E=2.043-2.046 MeV; measured γ yield. 31P(p, p), E=1-4 MeV; measured σ(θ) vs E. Microcomputer based system.

doi: 10.1016/0168-9002(88)90717-6
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1984AD07      J.Phys.(London) G10, 1747 (1984)

G.Adams, E.G.Bilpuch, G.E.Mitchell, R.O.Nelson, C.R.Westerfeldt

Proton Resonances in 26Al

NUCLEAR REACTIONS 25Mg(p, p), (p, p'), E=0.7-2.18 MeV; measured σ(θ) vs E. 26Al levels deduced J, π, Γp, Γp', IAR, channel spin, L-mixings, Coulomb energies, spectroscopic factors. Enriched target.

doi: 10.1088/0305-4616/10/12/013
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1984AU01      Phys.Rev. C29, 174 (1984)

G.F.Auchampaugh, M.S.Moore, J.D.Moses, R.O.Nelson, R.C.Extermann, C.E.Olsen, N.W.Hill, J.A.Harvey

Nature of the Coupling in Subthreshold Fission of 238Np

NUCLEAR REACTIONS 237Np(n, F), (n, X), E-1-600 eV; measured fission, total σ(E). 238Np deduced fission strength function, sharp, broad levels, Γ, subthreshold fission characteristics. Multi-level R-matrix fits.

doi: 10.1103/PhysRevC.29.174
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1984NE03      Phys.Rev. C29, 1656 (1984)

R.O.Nelson, E.G.Bilpuch, C.R.Westerfeldt, G.E.Mitchell

Proton Resonances in 28Si from E(x) = 12.5 to 13.4 MeV

NUCLEAR REACTIONS 27Al(p, p), (p, α), E=0.92-1.85 MeV; measured σ(θ) vs E. 28Si deduced level J, π, Γp, Γα, channel spin mixing, L mixing, IAS, Coulomb energies, spectroscopic factors. R-matrix analysis.

doi: 10.1103/PhysRevC.29.1656
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1984NE04      Phys.Rev. C30, 755 (1984)

R.O.Nelson, E.G.Bilpuch, C.R.Westerfeldt, G.E.Mitchell

Proton Resonances in 28Si from E(x) = 13.4 to 14.5 MeV

NUCLEAR REACTIONS 27Al(p, p), (p, α), E=0.92-1.85 MeV; measured σ(E, θ). 28Si levels deduced J, π, Γp, Γα, channel spin mixing, l-mixing, IAR, Coulomb energies, spectroscopic factors.

doi: 10.1103/PhysRevC.30.755
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1983NE04      Phys.Rev. C27, 930 (1983)

R.O.Nelson, E.G.Bilpuch, C.R.Westerfeldt, G.E.Mitchell

Proton Resonances in 30P

NUCLEAR REACTIONS 29Si(p, p), (p, p'), E=1.29-3.31 MeV; measured σ(Ep), σ(θ); deduced channel spin mixing. 30P deduced resonances, J, π, Γp, Γp', L, IAS Coulomb energies, S. Enriched target. R-matrix analysis.

doi: 10.1103/PhysRevC.27.930
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1983RA15      Z.Phys. A311, 157 (1983)

P.Ramakrishnan, B.H.Chou, G.E.Mitchell, E.G.Bilpuch, R.O.Nelson, J.F.Shriner, Jr., C.R.Westerfeldt

Statistical Properties of 3/2+ Resonances in 49V

NUCLEAR REACTIONS 48Ti(p, p'γ), E=2.4203-3.0815 MeV; measured Eγ, Iγ, γ(θ), pγ-coin, pγ(θ), σ(E). 49V deduced resonances, J, π, inelastic reduced widths, amplitude, width correlations. Statistical analysis.

doi: 10.1007/BF01415100
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1982CE02      Nucl.Phys. A376, 379 (1982)

F.E.Cecil, R.F.Fahlsing, R.A.Nelson

Total Cross-Section Measurements for the Production of Nuclear Gamma Rays from Light Nuclei by Low-Energy Deuterons

NUCLEAR REACTIONS, ICPND 6Li, 9Be, 10B(d, nγ), E=48, 170 keV; measured thick target yield; deduced σ(E), astrophysical S(E). Ge(Li) detector.

doi: 10.1016/0375-9474(82)90071-9
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1981HA28      Phys.Rev. C24, 786 (1981)

D.Halderson, K.W.Kemper, J.D.Fox, R.O.Nelson, E.G.Bilpuch, C.R.Westerfeldt, G.E.Mitchell

Width of the 6-, T = 1, E(x) = 14.36 MeV State in 28Si and Its Relationship to Intermediate Energy Inelastic Scattering

NUCLEAR REACTIONS 27Al(p, p'), E=2.7-3.06 MeV; measured σ(Ep, θ). 28Si resonance deduced Γ. R-matrix analysis.

doi: 10.1103/PhysRevC.24.786
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1976NE04      Nucl.Phys. A261, 427 (1976)

R.O.Nelson, J.R.Williams, D.R.Tilley, D.G.Rickel, N.R.Roberson, S.Maripuu, C.P.Camerson, R.D.Ledford

Mean Lifetimes of Levels in 55Co

NUCLEAR REACTIONS 54Fe(3He, dγ), E=12 MeV; measured Eγ(θ), Doppler-shift attenuation. 55Co deduced levels, J, π, T1/2. Enriched target, Ge(Li) detector.

doi: 10.1016/0375-9474(76)90156-1
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1975WI05      Phys.Rev. C11, 1111 (1975)

J.R.Williams, R.O.Nelson, C.R.Gould, D.R.Tilley

Gamma Ray Linear Polarization Measurements for 29Al

NUCLEAR REACTIONS 26Mg(α, p), E=11.26 MeV; measured linear polarization, pγ-coin. 29Al levels deduced J, π. Enriched target.

doi: 10.1103/PhysRevC.11.1111
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1975WI28      Nucl.Phys. A253, 365 (1975)

J.R.Williams, C.R.Gould, R.O.Nelson, D.R.Tilley, D.G.Rickel, N.R.Roberson

A Study of the Low-Lying Levels in 61Ni

NUCLEAR REACTIONS 58Fe(α, nγ), E=8 MeV; measured nγ-coin, γγ(θ), DSA, linear polarization. 60Ni(d, pγ), E=6 MeV; measured pγ-coin. 61Ni levels deduced J, π, δ, γ-branching, 3He. Enriched targets.

doi: 10.1016/0375-9474(75)90487-X
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1974BI02      Phys.Rev. C9, 1589 (1974)

E.G.Bilpuch, J.D.Moses, F.O.Purser, H.W.Newson, G.E.Mitchell, R.O.Nelson, D.A.Outlaw

High-Resolution Study of the 1/2+ Analog State in 93Tc

NUCLEAR REACTIONS 92Mo(p, p), E=5.13-5.43 MeV; measured σ(E, θ). 93Tc deduced resonances J, π, L, level-width isobaric-analog resonance. Fine-structure distribution, resonance spacing, S.

doi: 10.1103/PhysRevC.9.1589
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1974GO34      Nucl.Sci.Eng. 55, 267 (1974)

C.R.Gould, R.O.Nelson, J.R.Williams, J.R.Boyce

Cross-Section Requirements for Charged-Particle Fusion Reactors: The 6Li(p, 3He)α Reaction

NUCLEAR REACTIONS 6Li(p, 3He), E=3-12 MeV; measured σ(E(3He), Eα, θ).

doi: 10.13182/NSE74-A23453
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1974NE08      Phys.Rev. C9, 2193 (1974)

R.O.Nelson, C.R.Gould, D.R.Tilley, N.R.Robinson

Mean Lifetimes of Levels in 59Cu

NUCLEAR REACTIONS 58Ni(3He, dγ), E=11.6 MeV; measured Eγ, Iγ, dγ-coin, DSA. 59Cu deduced levels, T1/2, γ-branching, J, π.

doi: 10.1103/PhysRevC.9.2193
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1974RI13      Nucl.Phys. A232, 200 (1974)

D.G.Rickel, N.R.Roberson, R.O.Nelson, J.R.Williams, D.R.Tilley

Measurement of Mean Lifetimes, γ-Ray Angular Distributions and Linear Polarizations for Low-Lying Levels of 50V

NUCLEAR REACTIONS 50Ti(p, nγ), E=4.50, 4.62, 4.80 MeV; measured Eγ, Iγ, nγ-coin, γ(θ), pγ(θ), DSA. 50V levels deduced J, π, T1/2, γ-mixing, γ-branching ratios.

doi: 10.1016/0375-9474(74)90653-8
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1973GO02      Phys.Rev.Lett. 30, 298 (1973)

C.R.Gould, R.O.Nelson, J.R.Williams, D.R.Tilley, J.D.Hutton, N.R.Robertson, C.E.Busch, T.B.Clegg

Application of Polarized Deuterons in (d, pγ) Angular Correlation Measurements

NUCLEAR REACTIONS 12C, 30Si(d, pγ), E=4.15 MeV; measured pγ(θ). 13C, 31Si transitions deduced γ-mixing.

doi: 10.1103/PhysRevLett.30.298
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1973NE05      Phys.Lett. 43B, 389 (1973)

R.O.Nelson, N.R.Roberson

Evidence for Two-Step Processes in Reactions with Spherical Nuclei

NUCLEAR REACTIONS 54Fe(p, d), E=29 MeV; measured σ(Ed, θ). 53Fe levels deduced 2 step excitation process.

doi: 10.1016/0370-2693(73)90380-8
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1973NE18      Nucl.Phys. A215, 541 (1973)

R.O.Nelson, C.R.Gould, D.R.Tilley, N.R.Roberson

Study of Low-Lying Levels of 53Fe

NUCLEAR REACTIONS 54Fe(p, d), E=29 MeV; measured σ(θ(d)). 50Cr(α, nγ), E=7.45, 8.7, 10.5; measured σ(θ(γ)), Doppler-shift attenuation. 53Fe deduced levels, L, S, T1/2, J, γ-mixing, B(M1), B(E2). Enriched targets.

doi: 10.1016/0375-9474(73)90487-9
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1972NE18      Phys.Rev. C6, 2153 (1972)

R.O.Nelson, N.R.Roberson

Inelastic Effects in the Study of 23Na and 23Mg

NUCLEAR REACTIONS 24Mg(d, t), (d, 3He), E=21.1 MeV; measured σ(θ). 23Na, 23Mg deduced levels, J, π, S.

doi: 10.1103/PhysRevC.6.2153
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