NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = T.A.Bredeweg Found 71 matches. 2023LE08 Phys.Rev. C 108, 014608 (2023) E.Leal-Cidoncha, A.Couture, E.M.Bond, T.A.Bredeweg, C.Fry, T.Kawano, A.E.Lovell, G.Rusev, I.Stetcu, J.L.Ullmann, L.Leal, M.T.Pigni Measurement of the neutron-induced capture-to-fission cross section ratio in 233U at LANSCE NUCLEAR REACTIONS 235U(n, F), (n, γ), E=0.007-250 keV; measured Eγ, Iγ, γ-sum, En, In, nγ-coin; deduced capture-to-fission σ ratio, σ(E) of (n, γ) reaction derived from obtained ratio and ENDF/B-VIII.0 fission σ. Comparison to other experimental data, statistical model calculations and data from ENDF/B-VIII.0, JEFF-3.3, and JENDL-5 libraries. Discussed impact of the data on Th-U fuel cycle. Detector for Advanced Neutron Capture Experiments (DANCE) γ-calorimeter composed of 160 BaF2 crystals combined with the neutron detector array at DANCE (NEUANCE) composed of 21 stilbene crystals at Los Alamos Neutron Science Center (LANSCE, LANL).
doi: 10.1103/PhysRevC.108.014608
2023MA16 Appl.Radiat.Isot. 195, 110742 (2023) A.M.Marenco, G.Rusev, E.M.Bond, T.A.Bredeweg, S.W.Finch, J.R.Garcia, M.E.Gooden, Krishichayan, R.C.Malone, W.A.Moody, A.P.D.Ramirez, J.A.Silano, A.P.Tonchev, W.Tornow Cross section for inelastic neutron scattering from 193Ir at 6 MeV NUCLEAR REACTIONS 193Ir, Ir(n, n')193mIr, E=6 MeV; measured reaction products, X-rays; deduced σ. Comparison with available data, ENDF/B-VIII.0 library. The tandem lab of TUNL.
doi: 10.1016/j.apradiso.2023.110742
2022KN01 Phys.Rev. C 106, 034607 (2022) I.Knapova, S.Valenta, B.Baramsai, T.A.Bredeweg, A.Couture, C.Fry, M.Jandel, J.Kroll, M.Krticka, G.E.Mitchell, J.M.O'Donnell, C.J.Prokop, G.Rusev, J.L.Ullmann Spin assignment and statistical properties of neutron resonances from 161, 163Dy(n, γ) and 167Er(n, γ) measured at the DANCE facility NUCLEAR REACTIONS 161,163Dy, 167Er(n, γ), E=2-345 eV; measured Eγ, Iγ, γγ-coin, γ-sum energy; deduced J, resonances parameters, average resonance spacings. Checked the ratio of spacings for the two spins formed in s-wave resonance capture against predictions of different nuclear level density models. Comparison to other experimental data, Mughabghab "Atlas of Neutron Resonances" evaluation and TALYS calculations. Highly segmented γ-ray calorimeter Detector for Advanced Neutron Capture Experiments (DANCE) consisting of 160 BaF2 crystals the Los Alamos Neutron Science Center.
doi: 10.1103/PhysRevC.106.034607
2021GL02 J.Radioanal.Nucl.Chem. 330, 57 (2021) K.J.Glennon, E.M.Bond, T.A.Bredeweg, S.S.Chirayath, P.J.O'Neal, C.M.Folden Nuclear forensics methodology identifies legacy plutonium from the Manhattan Project
doi: 10.1007/s10967-021-07924-4
2021HA40 Nucl.Sci.Eng. 195, S37 (2021) D.Hayes, T.Bredeweg, T.Cutler, J.Goda, T.Grove, J.Hutchinson, J.Lamproe, G.McKenzie, A.McSpaden, W.Myers, R.Sanchez, J.Walker A New Era of Nuclear Criticality Experiments: The First 10 Years of Flattop Operations at NCERC
doi: 10.1080/00295639.2021.1947104
2019AB12 J.Phys.(London) G46, 100501 (2019) E.P.Abel, M.Avilov, V.Ayres, E.Birnbaum, G.Bollen, G.Bonito, T.Bredeweg, H.Clause, A.Couture, J.DeVore, M.Dietrich, P.Ellison, J.Engle, R.Ferrieri, J.Fitzsimmons, M.Friedman, D.Georgobiani, S.Graves, J.Greene, S.Lapi, C.S.Loveless, T.Mastren, C.Martinez-Gomez, S.McGuinness, W.Mittig, D.Morrissey, G.Peaslee, F.Pellemoine, J.D.Robertson, N.Scielzo, M.Scott, G.Severin, D.Shaughnessy, J.Shusterman, J.Singh, M.Stoyer, L.Sutherlin, A.Visser, J.Wilkinson Isotope harvesting at FRIB: additional opportunities for scientific discovery
doi: 10.1088/1361-6471/ab26cc
2019EB01 Phys.Rev. C 99, 064603 (2019) A.Ebran, O.Roig, V.Meot, M.Jandel, C.Theroine, E.M.Bond, T.A.Bredeweg, A.Couture, F.M.Nortier, J.M.O'Donnell, W.A.Taylor, J.L.Ullmann, D.J.Vieira Cross section for the neutron radiative capture on 173Lu nuclei NUCLEAR REACTIONS 173,174,175Lu(n, γ), (n, X), E=0.025-200 eV; measured Eγ, Iγ, and neutron radiative capture σ(E) using the DANCE detector with high-γ activity target at the Los Alamos Neutron Science Center (LANSCE) spallation neutron source facility; deduced resonance energies, J, Γγ, Γn for 102 resonances from 3.1-202.8 eV for 173Lu(n, γ). TALYS and SAMMY codes used for analysis of resonance data, and QRPA model for interpretation of the high gamma activity target.
doi: 10.1103/PhysRevC.99.064603
2018CH34 Phys.Lett. B 782, 652 (2018) A.Chyzh, P.Jaffke, C.Y.Wu, R.A.Henderson, P.Talou, I.Stetcu, J.Henderson, M.Q.Buckner, S.A.Sheets, R.Hughes, B.Wang, J.L.Ullmann, S.Mosby, T.A.Bredeweg, A.C.Hayes-Sterbenz, J.M.O'Donnell Dependence of the prompt fission γ-ray spectrum on the entrance channel of compound nucleus: Spontaneous vs. neutron-induced fission RADIOACTIVITY 240,242Pu(SF); measured decay products, Eγ, Iγ; deduced prompt γ-ray spectra. NUCLEAR REACTIONS 239,241Pu(n, F), E ∼ 100 keV; measured reaction products, Eγ, Iγ; deduced prompt fission γ-ray energy spectra. Comparison with Monte Carlo Hauser-Feshbach statistical model for the neutron-induced fission.
doi: 10.1016/j.physletb.2018.06.006
2018MO06 Nucl.Data Sheets 148, 312 (2018) S.Mosby, T.A.Bredeweg, A.Couture, M.Jandel, T.Kawano, J.Ullmann, R.A.Henderson, C.Y.Wu 239Pu(n, γ) from 10 eV to 1.3 MeV NUCLEAR REACTIONS 239Pu(n, γ), E=0.00001-1.3 MeV; measured reaction products, Eγ, Iγ; deduced σ and uncertainties. Detector for Advanced Neutron Capture Experiments (DANCE). Comparison with theoretical calculations.
doi: 10.1016/j.nds.2018.02.007
2018MO08 Phys.Rev. C 97, 041601 (2018) S.Mosby, T.A.Bredeweg, A.Couture, M.Jandel, T.Kawano, J.L.Ullmann, R.A.Henderson, C.Y.Wu Unifying measurement of 239Pu(n, γ) in the keV to MeV energy regime NUCLEAR REACTIONS 239Pu(n, γ), E=0.001-1.3 MeV; measured Eγ, Iγ, σ(E), using the Detector for Advanced Neutron Capture Experiments (DANCE) at LANL-LANSCE facility. Comparison with previous experimental results, evaluated data in ENDF/B-VII.1, ENDF/B-VIII.0, JENDL-4, and with theoretical calculations using CoH3 for the M1 scissors mode.
doi: 10.1103/PhysRevC.97.041601
2017BA28 Phys.Rev. C 96, 024619 (2017) B.Baramsai, M.Jandel, T.A.Bredeweg, E.M.Bond, A.R.Roman, G.Rusev, C.L.Walker, A.Couture, S.Mosby, J.M.O'Donnell, J.L.Ullmann, T.Kawano Radiative neutron capture cross section from 236U NUCLEAR REACTIONS 236U(n, γ), E=10 eV-800 keV; measured neutron time-of-flight spectrum, Eγ, Iγ, (n-resonance)γ-coin using the Detector for Advanced Neutron Capture Experiments (DANCE) γ-ray calorimeter at the Los Alamos Neutron Science Center; deduced multistep cascade spectra and multiplicity distribution of strong resonances, average multiplicity of resonances, capture σ(E), energies, Γγ, and Γn of neutron resonances for E(n)=29.8-998.1 eV. R-matrix analysis using code SAMMY. Comparison with earlier experimental data, and with ENDF/B-VII.1 and JEFF-3.2 nuclear data libraries.
doi: 10.1103/PhysRevC.96.024619
2017BU04 Phys.Rev. C 95, 024610 (2017) M.Q.Buckner, C.Y.Wu, R.A.Henderson, B.Bucher, N.Wimer, A.Chyzh, T.A.Bredeweg, B.Baramsai, A.Couture, M.Jandel, S.Mosby, J.L.Ullmann Measurement of the 242mAm neutron-induced reaction cross sections NUCLEAR REACTIONS 242mAm(n, γ), (n, F), E=0.023-0.98 eV; measured Eγ, Iγ, σ(E) for both reactions using DANCE array of 160 BaF2 crystals at LANSCE-LLNL facility. Comparison with previous experimental data.
doi: 10.1103/PhysRevC.95.024610
2017BU10 Phys.Rev. C 95, 061602 (2017) M.Q.Buckner, C.Y.Wu, R.A.Henderson, B.Bucher, N.Wimer, A.Chyzh, T.A.Bredeweg, B.Baramsai, A.Couture, M.Jandel, S.Mosby, J.L.Ullmann Comprehensive 242mAm neutron-induced reaction cross sections and resonance parameters NUCLEAR REACTIONS 242mAm(n, γ), (n, F), E=0.1 eV to 1 MeV; measured Eγ, Iγ, neutron capture and neutron-induced fission σ(E) using DANCE array of 160 equal-volume BaF2 crystals at the LANSCE-LLNL Lujan Neutron Scattering Center; deduced neutron-induced resonance energies, Γγ, Γn, and Γf of 106 resonances with energies between 0.15 and 45 eV by analyzing spectra using the R-matrix code SAMMY. Comparison with previous experimental data, and with evaluated data in ENDF/B-VII.1.
doi: 10.1103/PhysRevC.95.061602
2017GO11 Phys.Rev. C 96, 024622 (2017) M.E.Gooden, T.A.Bredeweg, B.Champine, D.C.Combs, S.Finch, A.Hayes-Sterbenz, E.Henry, Krishichayan, R.Rundberg, W.Tornow, J.Wilhelmy, C.Yeamans Measurement of the 209Bi(n, 4n)206Bi and 169Tm(n, 3n)167Tm cross sections between 23.5 and 30.5 MeV relevant to reaction-in-flight neutron studies at the National Ignition Facility NUCLEAR REACTIONS 209Bi(n, 4n), 169Tm(n, 3n), E=23.5, 24.9, 25.5, 26.5, 27.5, 28.5, 29.5, 30.5 MeV; measured neutron time-of-flight spectra, σ(E) at the FN tandem accelerator facility of Triangle Universities Nuclear Laboratory (TUNL). Comparison with previous experimental data, evaluated ENDF/B-VII.1, TENDL-2015 and EAF-2010 libraries, and theoretical calculations. Relevance to charged-particle stopping power measurements at the National Ignition Facility.
doi: 10.1103/PhysRevC.96.024622
2017UL01 Phys.Rev. C 96, 024627 (2017), Erratum Phys.Rev. C 96, 019902 (2017) J.L.Ullmann, T.Kawano, B.Baramsai, T.A.Bredeweg, A.Couture, R.C.Haight, M.Jandel, J.M.O'Donnell, R.S.Rundberg, D.J.Vieira, J.B.Wilhelmy, M.Krticka, J.A.Becker, A.Chyzh, C.Y.Wu, G.E.Mitchell Constraining the calculation of 234, 236, 238U (n, γ) cross sections with measurements of the γ-ray spectra at the DANCE facility NUCLEAR REACTIONS 234U(n, γ), E=31, 77 eV; 236U(n, γ), E=44, 71 eV; 238U(n, γ), E=21, 36, 66, 102 eV; measured Eγ, Iγ for 1/2+ neutron-resonances using the Detector for Advanced Neutron Capture Experiments (DANCE) at Los Alamos Neutron Science Center (LANSC); deduced total radiation widths Γγ of s-wave 1/2+ resonances using different models of photon strength function (PSF) and nuclear level-density (NLD) parametrizations, and significant contribution to Γγ from a resonance structure at Eγ=2-3 MeV, identified with the M1 scissors mode; comparison of measured and summed γ spectra with calculations using the PSF and NLD parameters obtained from the Oslo method, from renormalized Oslo results, from systematics used in the CoH3 code, and from the MGLO and CoH3 models for the E1 strength. 234,236,238U(n, γ), E=1-500 keV; calculated σ(E) and compared with previous experimental data listed in the EXFOR database, and with ENDFB/VII-1 evaluation.
doi: 10.1103/PhysRevC.96.024627
2017VA25 Phys.Rev. C 96, 054315 (2017) S.Valenta, B.Baramsai, T.A.Bredeweg, A.Couture, A.Chyzh, M.Jandel, J.Kroll, M.Krticka, G.E.Mitchell, J.M.O'Donnell, G.Rusev, J.L.Ullmann, C.L.Walker Examination of photon strength functions for 162, 164Dy from radiative capture of resonance neutrons NUCLEAR REACTIONS 161,163Dy(n, γ), E=10-40 s-wave neutrons; measured time-of-flight spectrum for neutrons, Eγ, Iγ using segmented γ-ray calorimeter Detector for Advanced Neutron Capture Experiments (DANCE), an array of BaF2 scintillators at Los Alamos Neutron Science Center (LANSCE) spallation neutron source; deduced neutron resonances, cluster multiplicities, multistep cascade (MSC) spectra, E1 and M1 photon strength functions (PSFs) as function of γ-ray energy, total radiation widths, scissors mode, nuclear level density. Comparison with other experimental data, and with statistical model calculations.
doi: 10.1103/PhysRevC.96.054315
2016BU09 Phys.Rev. C 93, 044613 (2016) M.Q.Buckner, C.Y.Wu, R.A.Henderson, B.Bucher, A.Chyzh, T.A.Bredeweg, B.Baramsai, A.Couture, M.Jandel, S.Mosby, J.M.O'Donnell, J.L.Ullmann Absolute measurement of the 242Pu neutron-capture cross section NUCLEAR REACTIONS 242Pu(n, γ), E=thermal-several hundred keV; measured Eγ, Iγ, summed γ-ray energy versus cluster multiplicity using LANSC-DANCE at LLNL facility, absolute σ(E) from thermal to ≈40 keV neutrons; deduced energies, Γγ and Γn of neutron resonances from 2.662 eV to 495.0 eV. Comparison with literature and evaluated data in ENDF/B-VII.1.
doi: 10.1103/PhysRevC.93.044613
2016DE30 Phys.Rev. C 94, 054612 (2016) D.Denis-Petit, O.Roig, V.Meot, B.Morillon, P.Romain, M.Jandel, T.Kawano, D.J.Vieira, E.M.Bond, T.A.Bredeweg, A.J.Couture, R.C.Haight, A.L.Keksis, R.S.Rundberg, J.L.Ullmann Isomeric ratio measurements for the radiative neutron capture 176Lu(n, γ) at the LANL DANCE facility NUCLEAR REACTIONS 176Lu(n, γ), E=8.5 eV-100 keV; measured Eγ, Iγ, delayed γ spectra using DANCE array at the LANSCE-LANL facility; deduced isomeric ratios to the 5/2-, 761.7 keV and 15/2+, 1356.9 keV nanosecond isomers in 177Lu. Comparison with TALYS calculations using different models for photon strength functions, level densities, and optical potentials.
doi: 10.1103/PhysRevC.94.054612
2016GO02 Nucl.Data Sheets 131, 319 (2016) M.E.Gooden, C.W.Arnold, J.A.Becker, C.Bhatia, M.Bhike, E.M.Bond, T.A.Bredeweg, B.Fallin, M.M.Fowler, C.R.Howell, J.H.Kelley, Krishichayan, R.Macri, G.Rusev, C.Ryan, S.A.Sheets, M.A.Stoyer, A.P.Tonchev, W.Tornow, D.J.Vieira, J.B.Wilhelmy Energy Dependence of Fission Product Yields from 235U, 238U and 239Pu for Incident Neutron Energies Between 0.5 and 14.8 MeV NUCLEAR REACTIONS 235,238U, 239Pu(n, F), E=0.5-14.8 MeV; measured reaction products, Eγ, Iγ; deduced fission yields.
doi: 10.1016/j.nds.2015.12.006
2016RO08 Phys.Rev. C 93, 034602 (2016) O.Roig, M.Jandel, V.Meot, E.M.Bond, T.A.Bredeweg, A.J.Couture, R.C.Haight, A.L.Keksis, R.S.Rundberg, J.L.Ullmann, D.J.Vieira Radiative neutron capture cross sections on 176Lu at DANCE NUCLEAR REACTIONS 176Lu(n, γ), E=0.02-100 keV; measured Eγ, Iγ, neutron flux, σ(E) using 4π BaF2 array DANCE at LANSCE-LANL; deduced radiative capture yield as function of neutron energy, resonances from 0.138-906 eV, J, Γγ and Γn versus neutron energy, resonance parameters using R-matrix analysis with SAMMY-7.0 code, Maxwellian averaged cross sections (MACS) in a stellar plasma for thermal energies between 5-100 keV. Comparison with theoretical calculations and evaluations in Atlas of Neutron resonances (2006), ENSDF/B-VII.1, JEFF-3.2, BRC and KADoNiS databases, and with previous experimental data.
doi: 10.1103/PhysRevC.93.034602
2015BH09 Phys.Rev. C 91, 064604 (2015) C.Bhatia, B.F.Fallin, M.E.Gooden, C.R.Howell, J.H.Kelley, W.Tornow, C.W.Arnold, E.Bond, T.A.Bredeweg, M.M.Fowler, W.Moody, R.S.Rundberg, G.Y.Rusev, D.J.Vieira, J.B.Wilhelmy, J.A.Becker, R.Macri, C.Ryan, S.A.Sheets, M.A.Stoyer, A.P.Tonchev Exploratory study of fission product yields of neutron-induced fission of 235U, 238U, and 239Pu at 8.9 MeV NUCLEAR REACTIONS 235,238U, 239Pu(n, F), E=8.9 MeV; measured Eγ, Iγ of fission products of 92Sr, 97Zr, 99Mo, 105Ru, 132Te, 133I, 140Ba, 143Ce, 147Nd at TUNL facility; deduced absolute fission product yields by γ activation method. Comparison with previous experimental results.
doi: 10.1103/PhysRevC.91.064604
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
2015JA07 Eur.Phys.J. A 51, 179 (2015) M.Jandel, B.Baramsai, E.Bond, G.Rusev, C.Walker, T.A.Bredeweg, M.B.Chadwick, A.Couture, M.M.Fowler, A.Hayes, T.Kawano, S.Mosby, I.Stetcu, T.N.Taddeucci, P.Talou, J.L.Ullmann, D.J.Vieira, J.B.Wilhelmy Capture and fission with DANCE and NEUANCE
doi: 10.1140/epja/i2015-15179-7
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
2015WA18 Phys.Rev. C 92, 014324 (2015) C.L.Walker, M.Krticka, B.Baramsai, F.Becvar, T.A.Bredeweg, A.Chyzh, R.C.Haight, M.Jandel, J.Kroll, G.E.Mitchell, J.M.O'Donnell, R.S.Rundberg, J.L.Ullmann, S.Valenta, J.B.Wilhelmy Measurement of the 97Mo(n, γ) reaction with the DANCE γ calorimeter array NUCLEAR REACTIONS 97Mo(n, γ), E<1.7 eV. Measured Eγ, Iγ, multistep gamma cascades (MSCs) with the DANCE array of 160 BaF2 detectors at the LANSCE-LANL facility. 98Mo; deduced neutron resonances, J, π, neutron widths, photon-strength functions (PSFs), simulated total radiation width of resonances for all considered model combinations. Analysis using DICEBOX statistical computer code. 93,95,99Mo, 94Nb, 100Ru; deduced photon-strength functions (PSFs) using averaged s-wave resonance spacings D0 from literature. Comparison with statistical model calculations.
doi: 10.1103/PhysRevC.92.014324
2015WE14 Phys.Rev. C 92, 045810 (2015) M.Weigand, T.A.Bredeweg, A.Couture, K.Gobel, T.Heftrich, M.Jandel, F.Kappeler, C.Lederer, N.Kivel, G.Korschinek, M.Krticka, J.M.O'Donnell, J.Ostermoller, R.Plag, R.Reifarth, D.Schumann, J.L.Ullmann, A.Wallner 63Ni(n, γ) cross sections measured with DANCE NUCLEAR REACTIONS 63Ni(n, γ), E=40 eV-500 keV; measured Eγ, Iγ, σ(E) using 4π BaF2 array DANCE at LANSCE-LANL, neutron flux; deduced resonances, Maxwellian averaged cross sections (MACS), relative production of isotopes in the vicinity of 63Ni and Ni to As elements for the s process. Comparison with KADoNiS database and experimental data from n_TOF collaboration.
doi: 10.1103/PhysRevC.92.045810
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
2014BH11 Nucl.Data Sheets 119, 324 (2014) C.Bhatia, B.Fallin, C.Howell, W.Tornow, M.Gooden, J.Kelley, C.Arnold, E.Bond, T.Bredeweg, M.Fowler, W.Moody, R.Rundberg, G.Rusev, D.Vieira, J.Wilhelmy, J.Becker, R.Macri, C.Ryan, S.Sheets, M.Stoyer, A.Tonchev Fission Product Yield Study of 235U, 238U and 239Pu Using Dual-Fission Ionization Chambers NUCLEAR REACTIONS 235,238U, 239Pu(n, F), E=4.6, 9.0, 14.5 MeV; measured Eγ, Iγ(t) from fission fragments using dual fission chamber; deduced fission products yield ratio. Compared with other data and libraries.
doi: 10.1016/j.nds.2014.08.089
2014CH30 Phys.Rev. C 90, 014602 (2014) A.Chyzh, C.Y.Wu, E.Kwan, R.A.Henderson, T.A.Bredeweg, R.C.Haight, A.C.Hayes-Sterbenz, H.Y.Lee, J.M.O'Donnell, J.L.Ullmann Total prompt γ-ray emission in fission of 235U, 239, 241Pu, and 252Cf NUCLEAR REACTIONS 235U, 239,241Pu(n, F), E=0.025 eV-100 keV; measured Eγ, Iγ of prompt γ rays, fission fragments using DANCE detector array for γ rays and parallel-plate avalanche counter for fission fragments at LLNL facility; deduced γ-ray multiplicity distributions, mean values of the total prompt γ-ray energy. Discussed γ heating in nuclear reactors. Comparison with previous experimental results and ENDF/B-VII.1 evaluation. RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ of prompt γ rays, fission fragments using DANCE detector array for γ rays and parallel-plate avalanche counter for fission fragments at LLNL facility; deduced γ-ray multiplicity distributions, mean values of the total prompt γ-ray energy. Comparison with previous experimental results.
doi: 10.1103/PhysRevC.90.014602
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
2014KR08 Nucl.Data Sheets 119, 158 (2014) J.Kroll, U.Agvaanluvsan, B.Baramsai, J.A.Becker, F.Becvar, T.A.Bredeweg, A.Chyzh, A.Couture, D.Dashdorj, R.C.Haight, M.Jandel, A.L.Keksis, M.Krticka, G.E.Mitchell, J.M.O'Donnell, W.Parker, R.S.Rundberg, J.L.Ullmann, S.Valenta, D.J.Vieira, C.L.Walker, J.B.Wilhelmy, J.M.Wouters, C.Y.Wu Systematics of Scissors Mode in Gd Nuclei from Experiments with the DANCE Detector NUCLEAR REACTIONS 152,154,155,156,157,158Gd(n, γ), E=subthermal-1 MeV; measured Eγ, Iγ using ToF LANSCE/DANCE array (BaF2); calculated γ emission, γ cascades using MSC code DICEBOX with fitted parameters and all models of RIPL-3; deduced M1 scissors mode vibrations; calculated scissors mode B(M1) vs deformation for (n, γ), (γ, γ') and 3He-induced reactions data.
doi: 10.1016/j.nds.2014.08.044
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
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
2014MO04 Phys.Rev. C 89, 034610 (2014) S.Mosby, T.A.Bredeweg, A.Chyzh, A.Couture, R.Henderson, M.Jandel, E.Kwan, J.M.O'Donnell, J.Ullmann, C.Y.Wu Improved neutron capture cross section of 239Pu NUCLEAR REACTIONS 239Pu(n, γ), E=10-1000 eV; measured Eγ, Iγ, (fission fragment)γ-coin, time-of-flight spectrum, fission σ(E), ratio of capture to fission σ(E), α-particle derived capture σ(E), integrated σ using DANCE detector and a parallel-plate avalanche counter (PPAC) at LANSCE-LLNL facility. Comparison with theoretical calculations, ENDF/B-VII.1 evaluation, and with previous experimental data.
doi: 10.1103/PhysRevC.89.034610
2014MO21 Nucl.Data Sheets 119, 31 (2014) S.Mosby, C.Arnold, T.A.Bredeweg, A.Chyzh, A.Couture, R.Henderson, M.Jandel, E.Kwan, J.M.O'Donnell, G.Rusev, J.L.Ullmann, C.Y.Wu Neutron Capture Cross Section of 239Pu NUCLEAR REACTIONS 239Pu(n, γ), E=10 eV - 100 keV; measured prompt fission Eγ, Iγ using DANCE; deduced σ. Preliminary. Compared to ENDF/B-VII.1.
doi: 10.1016/j.nds.2014.08.010
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
2014RO17 Nucl.Data Sheets 119, 165 (2014) O.Roig, C.Theroine, A.Ebran, V.Meot, E.M.Bond, T.A.Bredeweg, A.Couture, R.C.Haight, M.Jandel, F.M.Nortier, J.M.O'Donnell, R.S.Rundberg, W.A.Taylor, J.L.Ullmann, D.J.Vieira Measurement of 173Lu(n, γ) Cross Sections at DANCE NUCLEAR REACTIONS 173Lu(n, γ), E=0-200 eV[target from Hf(p, xn)]; measured Eγ, Iγ using DANCE array; deduced radiative capture yield vs neutron energy, reduced neutron width vs neutron energy, resonances, resonance parameters; calculated radiative neutron capture σ from resonance parameters using SAMMY-7.0, σ from ROSFOND2010 data using TALYS.
doi: 10.1016/j.nds.2014.08.046
2014UL01 Phys.Rev. C 89, 034603 (2014) J.L.Ullmann, T.Kawano, T.A.Bredeweg, A.Couture, R.C.Haight, M.Jandel, J.M.O'Donnell, R.S.Rundberg, D.J.Vieira, J.B.Wilhelmy, J.A.Becker, A.Chyzh, C.Y.Wu, B.Baramsai, G.E.Mitchell, M.Krticka Cross section and γ-ray spectra for 238U(n, γ) measured with the DANCE detector array at the Los Alamos Neutron Science Center NUCLEAR REACTIONS 238U(n, γ), E=1-500 keV; measured Eγ, Iγ, σ(E) using DANCE array at LANSCE-LLNL spallation neutron source facility. Comparison with Hauser-Feshbach calculations using CoH3 computer code and cascade spectra calculations by DICEBOX code using level data from ENSDF database, with evaluated cross section in ENDF/B-VII.1, and with previous experimental data. M1 scissors mode contribution to the radiative strength function.
doi: 10.1103/PhysRevC.89.034603
2014UL02 Nucl.Data Sheets 119, 22 (2014) J.L.Ullmann, S.Mosby, T.A.Bredeweg, A.J.Couture, R.C.Haight, M.Jandel, T.Kawano, J.M.O'Donnell, R.S.Rundberg, D.J.Vieira, J.B.Wilhelmy, C.-Y.Wu, J.A.Becker, A.Chyzh, B.Baramsai, G.E.Mitchell, M.Krticka Neutron Capture Cross Sections and Gamma Emission Spectra from Neutron Capture on 234, 236, 238U Measured with DANCE NUCLEAR REACTIONS 234,236,238U(n, γ), E=10 eV-700 keV; measured Eγ, Iγ using DANCE at LANSCE; deduced two-step cascade γ-ray spectrum. 238U deduced σ. Cross sections compared with data and ENDF/B-VII.
doi: 10.1016/j.nds.2014.08.008
2013BA15 Phys.Rev. C 87, 044609 (2013) B.Baramsai, J.Kroll, G.E.Mitchell, U.Agvaanluvsan, F.Becvar, T.A.Bredeweg, A.Chyzh, A.Couture, D.Dashdorj, R.C.Haight, M.Jandel, A.L.Keksis, M.Krticka, J.M.O'Donnell, R.S.Rundberg, J.L.Ullmann, D.J.Vieira, C.L.Walker Photon strength functions of 156Gd from radiative capture of resonance neutrons NUCLEAR REACTIONS 155Gd(n, γ), E=7.8, 21.0 eV; measured Eγ, Iγ, sum energy spectra, cluster multiplicity of γ cascades using DANCE γ-ray calorimeter at LANSCE facility; deduced spectra of multistep γ cascades (MSCs) and those of gated MSCs, E1 and M1 photon strength functions, scissors mode. DICEBOX algorithm. Validity of various photon strength functions (PSF), and nuclear level density (NLD) models Comparison with previous experimental studies, and with theoretical calculations.
doi: 10.1103/PhysRevC.87.044609
2013CH15 Phys.Rev. C 87, 034620 (2013) A.Chyzh, C.Y.Wu, E.Kwan, R.A.Henderson, J.M.Gostic, T.A.Bredeweg, A.Couture, R.C.Haight, A.C.Hayes-Sterbenz, M.Jandel, H.Y.Lee, J.M.O'Donnell, J.L.Ullmann Systematics of prompt γ-ray emission in fission NUCLEAR REACTIONS 235U, 239,241Pu(n, F), E=thermal to 1 MeV; measured prompt Eγ, Iγ, charged particles, (particle)γ(t), γ multiplicity, total γ-ray energy vs cluster multiplicity, TOF using DANCE array and PPACs at LANSCE facility. Possible population of pygmy resonances. Comparison of measured γ-ray multiplicity distributions with iterative Bayesian and SVD methods.
doi: 10.1103/PhysRevC.87.034620
2013CH48 Phys.Rev. C 88, 044607 (2013) A.Chyzh, C.Y.Wu, E.Kwan, R.A.Henderson, J.M.Gostic, T.A.Bredeweg, A.Couture, R.C.Haight, H.Y.Lee, J.M.O'Donnell, J.L.Ullmann Precision measurement of the 238Pu (n, γ) cross section NUCLEAR REACTIONS 238Pu(n, γ), E=thermal-30 keV; measured Eγ, Iγ, summed-γ spectra, γ-ray multiplicity, precise σ(E) using DANCE array at LANSCE facility; deduced resonance parameters, energies, γ and neutron widths from 2.87 eV to 407 eV energy region. Comparison with evaluated data in ENDF/B-VII.1.
doi: 10.1103/PhysRevC.88.044607
2013KR07 Phys.Scr. T154, 014009 (2013) J.Kroll, F.Becvar, M.Krticka, S.Valenta, B.Baramsai, G.E.Mitchell, C.L.Walker, T.A.Bredeweg, A.Couture, R.C.Haight, M.Jandel, J.M.O'Donnell, R.S.Rundberg, J.L.Ullmann, D.J.Vieira, J.B.Wilhelmy, J.M.Wouters, J.A.Becker, A.Chyzh, D.Dashdorj, W.Parker, C.Y.Wu Scissors mode of Gd nuclei measured, with the DANCE detector NUCLEAR REACTIONS 152,154,155,156,157,158Gd(n, γ), E<1 MeV; measured reaction products, Eγ, Iγ; deduced photon strength, summed scissors-mode strength B(M1). Comparison with available data.
doi: 10.1088/0031-8949/2013/T154/014009
2013KR11 Phys.Rev. C 88, 034317 (2013) J.Kroll, B.Baramsai, G.E.Mitchell, U.Agvaanluvsan, F.Becvar, T.A.Bredeweg, A.Chyzh, A.Couture, D.Dashdorj, R.C.Haight, M.Jandel, A.L.Keksis, M.Krticka, J.M.O'Donnell, W.Parker, R.S.Rundberg, J.L.Ullmann, S.Valenta, D.J.Vieira, C.Walker, C.Y.Wu Strength of the scissors mode in odd-mass Gd isotopes from the radiative capture of resonance neutrons NUCLEAR REACTIONS 152,154,156,158Gd(n, γ), E<1 MeV white neutron spectrum; measured multistep cascade (MSC) γ spectra for different multiplicities and several resolved s-wave resonances using DANCE array at LANSCE, LANL facility; deduced E1 and M1 photon strength functions, level density. GEANT4-based simulations. Comparison with several model calculations of photon strength functions (PSF) and nuclear level densities (NLD) for deformed nuclei, and with experimental data from other reactions. Discussed scissors mode in odd-A Gd isotopes from summed reduced M1 strengths. Evidence of odd-even effect in strength of scissors mode.
doi: 10.1103/PhysRevC.88.034317
2013RU05 Phys.Rev. C 87, 054603 (2013) G.Rusev, M.Jandel, M.Krticka, T.A.Bredeweg, A.Couture, T.N.Taddeucci, J.L.Ullmann γ-ray cascade transitions in 112Cd and 114Cd following resonance capture of epithermal neutrons NUCLEAR REACTIONS 111,113Cd(n, γ), E=epithermal; measured E(n), I(n), TOF, Eγ, Iγ, γγ-coin, σ, multiplicity distribution using DANCE calorimeter at LANSCE facility. 112,114Cd; deduced levels, resonances, J, π, neutron, two-step γ cascades and radiative width of s-wave resonances, E1, M1 and E2 strength function. Comparison with statistical-model calculations using DICEBOX code, SLO and KMF models.
doi: 10.1103/PhysRevC.87.054603
2013RU14 Phys.Rev. C 88, 057602 (2013) G.Rusev, M.Jandel, M.Krticka, C.W.Arnold, T.A.Bredeweg, A.Couture, W.A.Moody, S.M.Mosby, J.L.Ullmann Cascade γ rays following capture of thermal neutrons on 113Cd NUCLEAR REACTIONS 113Cd(n, γ), E=0.178 eV; measured Eγ, Iγ, γγ-coin using DANCE array of BaF2 detectors at LANSCE-LANL facility; deduced multiplicity of γ cascades. DICEBOX analysis. GEANT4 simulations. Comparison with ENDF-6 evaluation.
doi: 10.1103/PhysRevC.88.057602
2013UL01 Phys.Rev. C 87, 044607 (2013) J.L.Ullmann, E.M.Bond, T.A.Bredeweg, A.Couture, R.C.Haight, M.Jandel, T.Kawano, H.Y.Lee, J.M.O'Donnell, A.C.Hayes, I.Stetcu, T.N.Taddeucci, P.Talou, D.J.Vieira, J.B.Wilhelmy, J.A.Becker, A.Chyzh, J.Gostic, R.Henderson, E.Kwan, C.Y.Wu Prompt γ-ray production in neutron-induced fission of 239Pu NUCLEAR REACTIONS 239Pu(n, F), E<30 keV; measured prompt Eγ, Iγ, fission σ(E), Gamma-ray multiplicity using DANCE γ-ray calorimeter at LANSCE facility; deduced average multiplicity, average total energy. GEANT4 simulation of DANCE detector. Fission Tagging. Comparison with Monte Carlo Hauser-Feshbach (MCHF) calculations, previous experimental studies, and with ENDF/B-VII.
doi: 10.1103/PhysRevC.87.044607
2012BA07 Phys.Rev. C 85, 024622 (2012) B.Baramsai, G.E.Mitchell, U.Agvaanluvsan, F.Becvar, T.A.Bredeweg, A.Chyzh, A.Couture, D.Dashdorj, R.C.Haight, M.Jandel, A.L.Keksis, M.Krticka, J.M.O'Donnell, R.S.Rundberg, J.L.Ullmann, D.J.Vieira, C.L.Walker Neutron resonance parameters in 155Gd measured with the DANCE γ-ray calorimeter array NUCLEAR REACTIONS 155Gd(n, γ), E=1.36-185 eV; measured neutron spectra by time-of-flight, E(n), I(n), Eγ, sum-energy spectra, average γ-ray multiplicity of s-wave resonances, cross sections using DANCE calorimeter at LANSC. 156Gd; deduced resonances, spins by various methods, resonance parameters, s-wave level density, normalized yields for J=1 and J=2 resonances, neutron and radiative width, Sammy fit of experimental cross sections. Comparison with previous studies, and ENDF/B-VII.0, JENDL-4.0, JEFF-3.1, ROSFOND-2010 libraries.
doi: 10.1103/PhysRevC.85.024622
2012CH07 Phys.Rev. C 85, 021601 (2012) A.Chyzh, C.Y.Wu, E.Kwan, R.A.Henderson, J.M.Gostic, T.A.Bredeweg, R.C.Haight, A.C.Hayes-Sterbenz, M.Jandel, J.M.O'Donnell, J.L.Ullmann Evidence for the stochastic aspect of prompt γ emission in spontaneous fission RADIOACTIVITY 252Cf(SF); measured prompt γ spectra, and γ-ray multiplicity distributions, total γ-ray energy distribution using 4π γ-ray calorimeter DANCE array at LANSCE facility. Data analyzed by iterative Bayesian and SVD methods. Stochastic features of the prompt γ emission in spontaneous fission at higher multiplicities.
doi: 10.1103/PhysRevC.85.021601
2012JA16 Phys.Rev.Lett. 109, 202506 (2012) M.Jandel, T.A.Bredeweg, E.M.Bond, M.B.Chadwick, A.Couture, J.M.O'Donnell, M.Fowler, R.C.Haight, T.Kawano, R.Reifarth, R.S.Rundberg, J.L.Ullmann, D.J.Vieira, J.M.Wouters, J.B.Wilhelmy, C.Y.Wu, J.A.Becker New Precision Measurements of the 235U(n, γ) Cross Section NUCLEAR REACTIONS 235U(n, γ), (n, F), E=0.000004-1 MeV; measured reaction products, Eγ, Iγ; deduced thick-target σ. Comparison with ENDF/B-VII, JENDL-4 evaluated libraries and available data.
doi: 10.1103/PhysRevLett.109.202506
2012KO14 Phys.Rev.Lett. 108, 142502 (2012) P.E.Koehler, R.Reifarth, J.L.Ullmann, T.A.Bredeweg, J.M.O'Donnell, R.S.Rundberg, D.J.Vieira, J.M.Wouters Abrupt Change in Radiation-Width Distribution for 147Sm Neutron Resonances NUCLEAR REACTIONS 147Sm(n, γ), E<1 keV; measured reaction products, Eγ, Iγ; deduced σ, total radiation width of s-wave resonances. R-matrix analysis.
doi: 10.1103/PhysRevLett.108.142502
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
2011CH31 Phys.Rev. C 84, 014306 (2011) A.Chyzh, B.Baramsai, J.A.Becker, F.Becvar, T.A.Bredeweg, A.Couture, D.Dashdorj, R.C.Haight, M.Jandel, J.Kroll, M.Krticka, G.E.Mitchell, J.M.O'Donnell, W.Parker, R.S.Rundberg, J.L.Ullmann, D.J.Vieira, C.L.Walker, J.B.Wilhelmy, J.M.Wouters, C.Y.Wu Measurement of the 157Gd(n, γ) reaction with the DANCE γ calorimeter array NUCLEAR REACTIONS 157Gd(n, γ), E=<300 eV; measured Eγ, Iγ using DANCE γ calorimeter. 158Gd; deduced E1, M1 and E1 photon strength distributions, resonances, multiplicity, spin distribution, multistep cascade (MSC) spectra. Statistical model calculations using DICEBOX code. Scissors mode.
doi: 10.1103/PhysRevC.84.014306
2011UL01 J.Korean Phys.Soc. 59, 1406s (2011) J.L.Ullmann, A.J.Couture, A.L.Keksis, D.J.Vieira, J.M.O'Donnell, J.M.Wouters, M.Jandel, R.C.Haight, R.S.Rundberg, T.A.Bredeweg, T.Kawano, C.Y.Wu, J.A.Becker, A.Chyzh, B.Baramsai, G.E.Mitchell, M.Krticka Measurement of the 238U Neutron-capture Cross Section and Gamma-emission Spectra from 10 eV to 100 keV Using the DANCE Detector at LANSCE NUCLEAR REACTIONS 238U(n, γ), E=10 eV-100 keV; measured Eγ, Iγ, γγ-coin using DANCE at LANSCE; deduced σ, γ multiplicity, 36 eV resonance σ(Eγ); calculated γ multiplicity, σ(Eγ) using DICEBOX code.
doi: 10.3938/jkps.59.1406
2009CH04 Ann.Nucl.Energy 36, 258 (2009) M.B.Chadwick, R.C.Little, T.Kawano, P.Talou, D.Viera, M.Jandel, T.A.Bredeweg, M.C.White, A.P.Tonchev, J.A.Becker Actinide ENDF/B-VII cross-section evaluations and validation testing NUCLEAR REACTIONS 241Am(n, γ), E < 1000 MeV; 241Am(n, 2n), E < 20 MeV; analyzed cross sections. 239Pu(n, X), E=1.0 MeV; 238U(n, γ), E < 1.0 MeV; calculated cross sections.
doi: 10.1016/j.anucene.2008.11.011
2009SH05 Phys.Rev. C 79, 024301 (2009) S.A.Sheets, U.Agvaanluvsan, J.A.Becker, F.Becvar, T.A.Bredeweg, R.C.Haight, M.Jandel, M.Krticka, G.E.Mitchell, J.M.O'Donnell, W.Parker, R.Reifarth, R.S.Rundberg, E.I.Sharapov, J.L.Ullmann, D.J.Vieira, J.B.Wilhelmy, J.M.Wouters, C.Y.Wu Test of the statistical model in 96Mo with the BaF2γ calorimeter DANCE array NUCLEAR REACTIONS 95Mo(n, γ), E<2 keV; measured Eγ, Iγ, from multi-step γ cascades for s- and p-wave neutron resonances below 2 keV. Compared γ spectral shapes to DICEBOX statistical model simulations. Compared multi-step γ-cascade spectra for different multiplicities from various resonances with predictions of different photon strength function models.
doi: 10.1103/PhysRevC.79.024301
2008AL03 Phys.Rev. C 77, 015806 (2008) A.M.Alpizar-Vicente, T.A.Bredeweg, E.-I.Esch, U.Greife, R.C.Haight, R.Hatarik, J.M.O'Donnell, R.Reifarth, R.S.Rundberg, J.L.Ullmann, D.J.Vieira, J.M.Wouters Neutron capture cross section of 62Ni at s-process energies NUCLEAR REACTIONS 62Ni(n, γ), E=35 eV-500 keV; measured neutron capture cross sections, Eγ.
doi: 10.1103/PhysRevC.77.015806
2008ES01 Phys.Rev. C 77, 034309 (2008) E.-I.Esch, R.Reifarth, E.M.Bond, T.A.Bredeweg, A.Couture, S.E.Glover, U.Greife, R.C.Haight, A.M.Hatarik, R.Hatarik, M.Jandel, T.Kawano, A.Mertz, J.M.O'Donnell, R.S.Rundberg, J.M.Schwantes, J.L.Ullmann, D.J.Vieira, J.B.Wilhelmy, J.M.Wouters Measurement of the 237Np(n, γ) cross section from 20 meV to 500 keV with a high efficiency, highly segmented 4π BaF2 detector NUCLEAR REACTIONS 237Np(n, γ), E=0.02-500 keV; measured σ, neutron flux, Eγ, Iγ, time-of-flight spectra, α-spectra. DANCE array. Comparisons with Hauser-Feshbach-Moldauer calculations.
doi: 10.1103/PhysRevC.77.034309
2008JA08 Phys.Rev. C 78, 034609 (2008); Publishers Note Phys.Rev. C 78, 049904 (2008) M.Jandel, T.A.Bredeweg, E.M.Bond, M.B.Chadwick, R.R.Clement, A.Couture, J.M.O'Donnell, R.C.Haight, T.Kawano, R.Reifarth, R.S.Rundberg, J.L.Ullmann, D.J.Vieira, J.B.Wilhelmy, J.M.Wouters, U.Agvaanluvsan, W.E.Parker, C.Y.Wu, J.A.Becker Neutron capture cross section of 241Am NUCLEAR REACTIONS 241Am(n, γ), E=0.02 eV-320 keV; measured Eγ, Iγ, σ, resonance parameters. Comparison with evaluated cross sections databases.
doi: 10.1103/PhysRevC.78.034609
2007AG09 Nucl.Instrum.Methods Phys.Res. B261, 934 (2007) U.Agvaanluvsan, J.A.Becker, R.A.Macri, W.Parker, P.Wilk, C.Y.Wu, T.A.Bredeweg, E.Esch, R.C.Haight, J.M.O'Donnell, R.Reifarth, R.S.Rundberg, J.M.Schwantes, J.L.Ullmann, D.J.Vieira, J.B.Wilhelmy, J.M.Wouters, G.E.Mitchell, S.Sheets, F.Becvar, M.Krticka Progress on the europium neutron capture study using DANCE NUCLEAR REACTIONS 151,153Eu(n, γ), E=0.1-100 keV; measured Eγ, Iγ, and multiplicity distributions.
doi: 10.1016/j.nimb.2007.03.107
2007BR16 Nucl.Instrum.Methods Phys.Res. B261, 986 (2007) T.A.Bredeweg, M.M.Fowler, J.A.Becker, E.M.Bond, M.B.Chadwick, R.R.C.Clement, E.-I.Esch, T.Ethvignot, T.Granier, M.Jandel, R.A.Macri, J.M.O'Donnell, R.Reifarth, R.S.Rundberg, J.L.Ullmann, D.J.Vieira, J.B.Wilhelmy, J.M.Wouters, C.Y.Wu Simultaneous measurement of (n, γ) and (n, fission) cross sections with the DANCE 4π BaF2 array NUCLEAR REACTIONS 235U, 252Cf(n, γ), (n, X), E < 18 eV; measured Eγ, Iγ, fission fragments. Deduced cross sections.
doi: 10.1016/j.nimb.2007.04.226
2007KO54 Phys.Rev. C 76, 025804 (2007) P.E.Koehler, J.L.Ullmann, T.A.Bredeweg, J.M.O'Donnell, R.Reifarth, R.S.Rundberg, D.J.Vieira, J.M.Wouters Spin measurements for 147Sm + n resonances: Further evidence for nonstatistical effects NUCLEAR REACTIONS 147Sm(n, γ), E=spectrum; measured Eγ, Iγ, multiplicities. 147Sm deduced resonance energies and spins.
doi: 10.1103/PhysRevC.76.025804
2007SH46 Phys.Rev. C 76, 064317 (2007) S.A.Sheets, U.Agvaanluvsan, J.A.Becker, F.Becvar, T.A.Bredeweg, R.C.Haight, M.Krticka, M.Jandel, G.E.Mitchell, J.M.O'Donnell, W.E.Parker, R.Reifarth, R.S.Rundberg, E.I.Sharapov, I.Tomandl, J.L.Ullmann, D.J.Vieira, J.M.Wouters, J.B.Wilhelmy, C.Y.Wu Spin and parity assignments for 94, 95Mo neutron resonances NUCLEAR REACTIONS 94,95Mo(n, γ), E=800 MeV; measured neutron energies, Eγ, Iγ, γ-ray multiplicities. 95,96Mo; deduced neutron resonance levels, J, π.
doi: 10.1103/PhysRevC.76.064317
2006RO22 Nucl.Instrum.Methods Phys.Res. A562, 771 (2006) C.Romano, Y.Danon, R.C.Haight, S.A.Wender, D.J.Vieira, E.M.Bond, R.S.Rundberg, J.B.Wilhelmy, J.M.O'Donnell, A.F.Michaudon, T.A.Bredeweg, D.Rochman, T.Granier, T.Ethvignot Measurements of (n, α) cross-section of small samples using a lead-slowing-down-spectrometer NUCLEAR REACTIONS 6Li(n, α), E ≈ 0.1-10000 eV; measured Eα, σ(E). Lead-slowing-down spectrometer.
doi: 10.1016/j.nima.2006.02.052
2006RO28 Nucl.Instrum.Methods Phys.Res. A564, 400 (2006) D.Rochman, R.C.Haight, J.M.O'Donnell, S.A.Wender, D.J.Vieira, E.M.Bond, T.A.Bredeweg, J.B.Wilhelmy, T.Granier, T.Ethvignot, M.Petit, Y.Danon, C.Romano Cross-section measurements for 239Pu(n, f) and 6Li(n, α) with a lead slowing-down spectrometer NUCLEAR REACTIONS 239Pu(n, F), E < 100 keV; measured fission σ. 6Li(n, α), E < 10 keV; measured σ. Lead slowing-down spectrometer.
doi: 10.1016/j.nima.2006.03.032
2005AH02 Phys.Rev. C 71, 024311 (2005) I.Ahmad, J.C.Banar, J.A.Becker, T.A.Bredeweg, J.R.Cooper, D.S.Gemmell, A.Kraemer, A.Mashayekhi, D.P.McNabb, G.G.Miller, E.F.Moore, P.Palmer, L.N.Pangault, R.S.Rundberg, J.P.Schiffer, S.D.Shastri, T.-F.Wang, J.B.Wilhelmy Search for x-ray induced decay of the 31-yr isomer of 178Hf using synchrotron radiation NUCLEAR REACTIONS 178mHf(X-ray, X), E=8-30 keV; measured prompt and delayed Eγ, X-ray spectra; deduced σ upper limit for induced isomer decay. Comparison with previous results.
doi: 10.1103/PhysRevC.71.024311
2005RE25 Nucl.Instrum.Methods Phys.Res. B241, 176 (2005) R.Reifarth, E.-I.Esch, A.Alpizar-Vicente, E.M.Bond, T.A.Bredeweg, S.E.Glover, U.Greife, R.Hatarik, R.C.Haight, A.Kronenberg, J.M.O'Donnell, R.S.Rundberg, J.M.Schwantes, J.L.Ullmann, D.J.Vieira, J.B.Wilhelmy, J.M.Wouters (n, γ) measurements on radioactive isotopes with DANCE NUCLEAR REACTIONS 237Np(n, γ), E=0.01-10 eV; measured σ. Comparison with previous results.
doi: 10.1016/j.nimb.2005.07.022
2005RO30 Nucl.Instrum.Methods Phys.Res. A550, 397 (2005) D.Rochman, R.C.Haight, J.M.O'Donnell, A.Michaudon, S.A.Wender, D.J.Vieira, E.M.Bond, T.A.Bredeweg, A.Kronenberg, J.B.Wilhelmy, T.Ethvignot, T.Granier, M.Petit, Y.Danon Characteristics of a lead slowing-down spectrometer coupled to the LANSCE accelerator NUCLEAR REACTIONS 235U, 239Pu(n, F), E < 100 keV; measured fission σ. Lead slowing-down spectrometer.
doi: 10.1016/j.nima.2005.04.075
2003AH03 Phys.Rev. C 67, 041305 (2003) I.Ahmad, J.C.Banar, J.A.Becker, T.A.Bredeweg, J.R.Cooper, D.S.Gemmell, A.Mashayekhi, D.P.McNabb, E.F.Moore, P.Palmer, R.S.Rundberg, J.P.Schiffer, S.D.Shastri, T.F.Wang, J.B.Wilhelmy Search for x-ray induced decay of the 31-yr isomer of 178Hf at low x-ray energies NUCLEAR REACTIONS 178mHf(X-ray, X), E=6-20 keV; measured upper limit for energy-integrated σ of x-ray induced isomer decay. Comparison with previous results.
doi: 10.1103/PhysRevC.67.041305
2002BR36 Phys.Rev. C66, 014608 (2002) T.A.Bredeweg, R.Yanez, B.P.Davin, K.Kwiatkowski, R.T.de Souza, R.Lemmon, R.Popescu, R.J.Charity, L.G.Sobotka, D.Hofman, N.Carjan Near-Scission Emission of Intermediate Mass Fragments in 12C + 232Th at E/A = 16 and 22 MeV NUCLEAR REACTIONS 232Th(12C, X), E=16, 22 MeV/nucleon; measured intermediate mass fragment yields, energy, angular distribution in coincidence with fission fragments following incomplete fusion; deduced statistical emission mechanism, other reaction mechanism features. Comparison with ternary fission data. NUCLEAR STRUCTURE 216,236U; calculated saddle-to-scission shapes vs angular momentum. Dynamical model.
doi: 10.1103/PhysRevC.66.014608
1999YA05 Phys.Rev.Lett. 82, 3585 (1999); Comment Phys.Rev.Lett. 85, 2645 (2000) R.Yanez, T.A.Bredeweg, E.Cornell, B.Davin, K.Kwiatkowski, V.E.Viola, R.T.de Souza, R.Lemmon, R.Popescu Experimental Evidence for Dynamical Decay of Finite Nuclear Matter NUCLEAR REACTIONS 232Th(12C, F), E=22 MeV/nucleon; measured intermediate mass fragments energy, charge distributions, correlations with heavy fragments following ternary fission; deduced dynamical decay features.
doi: 10.1103/PhysRevLett.82.3585
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