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NSR database version of April 27, 2024.

Search: Author = D.Neudecker

Found 43 matches.

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2023KE09      Phys.Rev. C 108, 024603 (2023)

K.J.Kelly, M.Devlin, J.M.O'Donnell, D.Neudecker, A.E.Lovell, R.C.Haight, C.Y.Wu, R.Henderson, E.A.Bennett, T.Kawano, J.L.Ullmann, N.Fotiades, J.Henderson, S.M.Mosby, T.N.Taddeucci, P.Talou, M.C.White, J.A.Gomez, H.Y.Lee

Measurement of the ²³⁸U(n, f) prompt fission neutron spectrum from 10 keV to 10 MeV induced by neutrons with 1.5-20 MeV energy

NUCLEAR REACTIONS ²³⁸U(n, F), E=1.5-20 MeV; measured fission fragments, En, In, neutron time-of-flight, (fragment)n-coin; deduced prompt fission neutron spectrum (PFNS). Systematic trends in PFNS and PFNS ratios for ²³⁹Pu, ²³⁵U, and ²³⁸U obtained in series of Chi-Nu experiments. Comparison to other experimental results, CGMF calculations and data from JEFF-3.3, JENDL-5.0. ENDF/B-VIII libraries. Pulsed white neutron source at Weapons Neutron Research (WNR) facility of the Los Alamos Neutron Science Center (LANSCE). Li-glass array consisting of 22 detectors and liquid scintillator array consisting of 54 detector used for neutron detection, while PPAC used for detecting fission fragments in the frame of Chi-Nu experiment.

doi: 10.1103/PhysRevC.108.024603
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2023LE13      Eur.Phys.J. N 9, 34 (2023)

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

Templates of expected measurement uncertainties for total neutron cross-section observables

doi: 10.1051/epjn/2023018
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2023LE14      Eur.Phys.J. N 9, 33 (2023)

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

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

doi: 10.1051/epjn/2023015
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2023MU06      Phys.Rev. C 107, 034606 (2023)

M.R.Mumpower, D.Neudecker, H.Sasaki, T.Kawano, A.E.Lovell, M.W.Herman, I.Stetcu, M.Dupuis

Collective enhancement in the exciton model

NUCLEAR REACTIONS ²³⁹Pu(n, 2n), E=6-24 MeV; calculated σ(E). ²³⁹Pu(n, xn), E=14 MeV; ¹⁸¹Ta, ¹⁶⁵(n, xn), E=20 MeV; calculated neutron emission spectra. Calculation with statistical model framework CoH3 with increased one-particle-one-hole state density used in the exciton model. Comparison to experimental data and ENDF/B-VIII.0.

NUCLEAR STRUCTURE ²³⁹Pu; calculated 1p-1h state densities.

doi: 10.1103/PhysRevC.107.034606
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2023NE10      Eur.Phys.J. N 9, 35 (2023)

D.Neudecker, A.M.Lewis, E.F.Matthews, J.Vanhoy, R.C.Haight, D.L.Smith, P.Talou, S.Croft, A.D.Carlson, B.Pierson, A.Wallner, A.Al-Adili, L.Bernstein, R.Capote, M.Devlin, M.Drosg, D.L.Duke, S.Finch, M.W.Herman, K.J.Kelly, A.Koning, A.E.Lovell, P.Marini, K.Montoya, G.P.A.Nobre, M.Paris, B.Pritychenko, H.Sjostrand, L.Snyder, V.Sobes, A.Solders, J.Taieb

Templates of Expected Measurement Uncertainties: a CSEWG Effort

NUCLEAR REACTIONS ²³⁵U(n, F), E<20 MeV; analyzed available data; deduced nubar mean values and uncertainties.

doi: 10.1051/epjn/2023014
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2023NE11      Eur.Phys.J. N 9, 32 (2023)

D.Neudecker, M.Devlin, R.C.Haight, K.J.Kelly, P.Marini, A.D.Carlson, J.Taieb, M.C.White

Templates of expected measurement uncertainties for prompt fission neutron spectra

RADIOACTIVITY ²⁵²Cf(SF); analyzed available data; deduced prompt-fission neutron spectrum (PFNS), ratio to a Maxwellian function.

NUCLEAR REACTIONS ²³⁹Pu(n, F), E<20 MeV; analyzed available data; deduced prompt-fission neutron spectrum (PFNS), ratio to a Maxwellian function.

doi: 10.1051/epjn/2023013
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2023NE12      Eur.Phys.J. N 9, 30 (2023)

D.Neudecker, A.D.Carlson, S.Croft, M.Devlin, K.J.Kelly, A.E.Lovell, P.Marini, J.Taieb

Templates of expected measurement uncertainties for average prompt and total fission neutron multiplicities

RADIOACTIVITY ²⁵²Cf(SF); analyzed available data; deduced prompt-fission neutron spectrum (PFNS), nubar uncertainties.

NUCLEAR REACTIONS ²³⁹Pu(n, F), E<20 MeV; analyzed available data; deduced prompt-fission neutron spectrum (PFNS), nubar uncertainties.

doi: 10.1051/epjn/2023016
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2023VA11      Eur.Phys.J. N 9, 31 (2023)

J.R.Vanhoy, R.C.Haight, S.F.Hicks, M.Devlin, D.Neudecker, M.Herman, A.Koning, K.J.Kelly, I.Thompson

Templates of expected measurement uncertainties for (n, xn) cross sections

NUCLEAR REACTIONS ⁵⁶Fe, ²³Na(n, n'), ⁹Be(n, X), E=3.5, 6 MeV; analyzed available data; deduced a template for evaluating experimental uncertainties for neutron elastic and inelastic scattering σ and γ-ray production σ from (n, xn) measurements at laboratories with monoenergetic or white neutron sources.

doi: 10.1051/epjn/2023019
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2022KE01      Phys.Rev. C 105, 044615 (2022)

K.J.Kelly, J.A.Gomez, M.Devlin, J.M.O'Donnell, D.Neudecker, A.E.Lovell, R.C.Haight, C.Y.Wu, R.Henderson, T.Kawano, E.A.Bennett, S.M.Mosby, J.L.Ullmann, N.Fotiades, J.Henderson, T.N.Taddeucci, H.Y.Lee, P.Talou, M.C.White

Measurement of the ²³⁵U(n, f) prompt fission neutron spectrum from 10 keV to 10 MeV induced by neutrons of energy from 1 MeV to 20 MeV

NUCLEAR REACTIONS ²³⁵U(n, F), E=0.01-10 MeV; measured In, En, neutron time-of-flight, fission fragments, neutrons angular distributions, (fragment)n-coin; deduced prompt fission neutron spectrum (PFNS), components corresponding to first-, second-, and third-chance fission as well as pre-equilibrium neutron emission preceding fission, mean PFNS energy, ratio to PFNMS obtained in ²³⁹Pu(n, F) reaction. Experiment performed as a part of Chi-Nu project aimed to measure the PFNS of major actinides with the Weapons Neutron Research (WNR) facility at the Los Alamos Neutron Science Center (LANSCE). The results are compared with other experimental data, CGMF calculations and selected nuclear data evaluations - ENDF/B-VIII.0, JEFF-3.3, JENDL-5.0.

doi: 10.1103/PhysRevC.105.044615
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2022MA58      Phys.Lett. B 835, 137513 (2022)

P.Marini, J.Taieb, D.Neudecker, G.Belier, A.Chatillon, D.Etasse, B.Laurent, P.Morfouace, B.Morillon, M.Devlin, J.A.Gomez, R.C.Haight, K.J.Kelly, J.M.O'Donnell

Energy dependence of prompt fissions neutron multiplicity in the ²³⁹Pu(n, f) reaction

NUCLEAR REACTIONS ²³⁹Pu(n, F), E=1-700 MeV; calculated neutron multiplicity, nubar. Comparison with available data, ENDF/B-VIII.0 and JEFF3.3 libraries.

doi: 10.1016/j.physletb.2022.137513
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2022MO03      Nucl.Instrum.Methods Phys.Res. A1021, 165864 (2022)

M.Monterial, K.T.Schmitt, C.Prokop, E.Leal-Cidoncha, M.Anastasiou, N.S.Bowden, J.Bundgaard, R.J.Casperson, D.A.Cebra, T.Classen, D.H.Dongwi, N.Fotiades, J.Gearhart, V.Geppert-Kleinrath, U.Greife, C.Hagmann, M.Heffner, D.Hensle, D.Higgins, L.D.Isenhower, K.Kazkaz, A.Kemnitz, J.King, J.L.Klay, J.Latta, W.Loveland, J.A.Magee, B.Manning, M.P.Mendenhall, S.Mosby, D.Neudecker, S.Sangiorgio, B.Seilhan, L.Snyder, F.Tovesson, R.S.Towell, N.Walsh, T.S.Watson, L.Yao, W.Younes

Measurement of material isotopics and atom number ratio with α-particle spectroscopy for a NIFFTE fission Time Projection Chamber actinide target

NUCLEAR REACTIONS ²³⁵U, ²³⁹Pu(n, F), E not given; measured fission products, Eα, Iα; deduced isotopic concentrations and atomic number ratio.

doi: 10.1016/j.nima.2021.165864
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2021HE28      Ann.Nucl.Energy 163, 108494 (2021)

M.Herman, D.A.Brown, R.Capote, M.B.Chadwick, W.Haeck, J.D.Hutchinson, T.Kawano, D.Neudecker, G.Palmiotti, M.Salvatores, P.Talou, A.Trkov, M.C.White

Infrastructure for the new paradigm of nuclear reaction evaluation

NUCLEAR REACTIONS ¹⁰⁵Pd(n, γ), ²³⁵U, ²³⁹Pu(n, F), E<20 MeV; analyzed available data; deduced pilot assimilation project needs.

doi: 10.1016/j.anucene.2021.108494
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2021KE05      Nucl.Data Sheets 173, 42 (2021)

K.J.Kelly, P.Marini, J.Taieb, M.Devlin, D.Neudecker, R.C.Haight, G.Belier, B.Laurent, P.Morfouace, J.M.O'Donnell, E.Bauge, M.B.Chadwick, A.Chatillon, D.Etasse, P.Talou, M.C.White, C.Y.Wu, E.A.Bennett

Comparison of Results from Recent NNSA and CEA Measurements of the ²³⁹Pu(n, f) Prompt Fission Neutron Spectrum

NUCLEAR REACTIONS ²³⁹Pu(n, F), E<20 MeV; analyzed the NNSA and CEA data; deduced prompt fission neutron spectrum (PFNS), systematic differences.

doi: 10.1016/j.nds.2021.04.003
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2021NE02      Ann.Nucl.Energy 159, 108345(2021)

D.Neudecker, O.Cabellos, A.R.Clark, W.Haeck, R.Capote, A.Trkov, M.C.White, M.E.Rising

Which nuclear data can be validated with LLNL pulsed-sphere experiments?

doi: 10.1016/j.anucene.2021.108345
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2021NE06      Phys.Rev. C 104, 034611 (2021)

D.Neudecker, O.Cabellos, A.R.Clark, M.J.Grosskopf, W.Haeck, M.W.Herman, J.Hutchinson, T.Kawano, A.E.Lovell, I.Stetcu, P.Talou, S.Vander Wiel

Informing nuclear physics via machine learning methods with differential and integral experiments

NUCLEAR REACTIONS ²³⁸U(n, n'), E=14 MeV; analyzed pulsed-sphere neutron-leakage experimental spectrum obtained at LLNL facility, and compared with evaluated data in ENDF/B-VIII.0. ²⁴¹Pu(n, F), E=0.1-1.0, 14 MeV; analyzed differential and integral experimental data for fission σ(E) by combining experimental σ data, nuclear-physics theory and neutron-transport simulations of the experiments using machine learning (ML) random forest algorithm and expert judgment. Relevance to improvement of description of nuclear-physics observables in particular application areas.

doi: 10.1103/PhysRevC.104.034611
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2020CA02      Nucl.Data Sheets 163, 191 (2020)

R.Capote, S.Badikov, A.D.Carlson, I.Duran, F.Gunsing, D.Neudecker, V.G.Pronyaev, P.Schillebeeckx, G.Schnabel, D.L.Smith, A.Wallner

Unrecognized Sources of Uncertainties (USU) in Experimental Nuclear Data

doi: 10.1016/j.nds.2019.12.004
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2020KE05      Phys.Rev. C 102, 034615 (2020)

K.J.Kelly, M.Devlin, J.M.O'Donnell, J.A.Gomez, D.Neudecker, R.C.Haight, T.N.Taddeucci, S.M.Mosby, H.Y.Lee, C.Y.Wu, R.Henderson, P.Talou, T.Kawano, A.E.Lovell, M.C.White, J.L.Ullmann, N.Fotiades, J.Henderson, M.Q.Buckner

Measurement of the ²³⁹Pu(n, f) prompt fission neutron spectrum from 10 keV to 10 MeV induced by neutrons of energy 1-20 MeV

NUCLEAR REACTIONS ²³⁹Pu(n, F), E=1-20 MeV; measured outgoing prompt fission neutron spectrum (PFNS) in the range of E(n)=0.01-10 MeV, I(n) using Li-glass detector array and 54-detector EJ-309 liquid scintillator array in Chi-Nu experiment at the WNR-LANSCE-Los Alamos facility; deduced correlation matrix for PFNS from the Li-glass and the liquid scintillator. Comparison of present PFNS results with previous experimental results, and with evaluated data in ENDF/B-VIII.0 and JEFF-3.3 libraries.

doi: 10.1103/PhysRevC.102.034615
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14682.

2020NE03      Nucl.Data Sheets 163, 228 (2020)

D.Neudecker, D.L.Smith, F.Tovesson, R.Capote, M.C.White, N.S.Bowden, L.Snyder, A.D.Carlson, R.J.Casperson, V.Pronyaev, S.Sangiorgio, K.T.Schmitt, B.Seilhan, N.Walsh, W.Younes

Applying a Template of Expected Uncertainties to Updating ²³⁹Pu(n, f) Cross-section Covariances in the Neutron Data Standards Database

doi: 10.1016/j.nds.2019.12.005
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2020NE07      Nucl.Data Sheets 167, 36 (2020)

D.Neudecker, M.Grosskopf, M.Herman, W.Haeck, P.Grechanuk, S.Vander Wiel, M.E.Rising, A.C.Kahler, N.Sly, P.Talou

Enhancing nuclear data validation analysis by using machine learning

doi: 10.1016/j.nds.2020.07.002
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2020WH03      Nucl.Instrum.Methods Phys.Res. A978, 164305 (2020)

B.Whewell, M.Grosskopf, D.Neudecker

Evaluating ²³⁹Pu(n, f) cross sections via machine learning using experimental data, covariances, and measurement features

NUCLEAR REACTIONS ²³⁹Pu(n, F), E<20 MeV; analyzed available data; deduced evaluated σ using a modified version of the Hybrid Robust Support Vector Machine and logistic regression with elastic net regularization and random forest regression with SHAP feature importance metric.

doi: 10.1016/j.nima.2020.164305
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2019KE04      Phys.Rev.Lett. 122, 072503 (2019)

K.J.Kelly, T.Kawano, J.M.O'Donnell, J.A.Gomez, M.Devlin, D.Neudecker, P.Talou, A.E.Lovell, M.C.White, R.C.Haight, T.N.Taddeucci, S.M.Mosby, H.Y.Lee, C.Y.Wu, R.Henderson, J.Henderson, M.Q.Buckner

Preequilibrium Asymmetries in the ²³⁹Pu(n, f) Prompt Fission Neutron Spectrum

NUCLEAR REACTIONS ²³⁹Pu(n, F), E=15-17.5 MeV; measured reaction products, En, In; deduced neutron excess of the preequilibrium prefission distribution above the postfission neutron spectrum. Comparison with theoretical calculations.

doi: 10.1103/PhysRevLett.122.072503
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2019LE12      Eur.Phys.J. A 55, 141 (2019)

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

Ratio method for estimating uncertainty in calculated gamma cascades

doi: 10.1140/epja/i2019-12826-y
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2018BR05      Nucl.Data Sheets 148, 1 (2018)

D.A.Brown, M.B.Chadwick, R.Capote, A.C.Kahler, A.Trkov, M.W.Herman, A.A.Sonzogni, Y.Danon, A.D.Carlson, M.Dunn, D.L.Smith, G.M.Hale, G.Arbanas, R.Arcilla, C.R.Bates, B.Beck, B.Becker, F.Brown, R.J.Casperson, J.Conlin, D.E.Cullen, M.-A.Descalle, R.Firestone, T.Gaines, K.H.Guber, A.I.Hawari, J.Holmes, T.D.Johnson, T.Kawano, B.C.Kiedrowski, A.J.Koning, S.Kopecky, L.Leal, J.P.Lestone, C.Lubitz, J.I.Marquez Damian, C.M.Mattoon, E.A.McCutchan, S.Mughabghab, P.Navratil, D.Neudecker, G.P.A.Nobre, G.Noguere, M.Paris, M.T.Pigni, A.J.Plompen, B.Pritychenko, V.G.Pronyaev, D.Roubtsov, D.Rochman, P.Romano, P.Schillebeeckx, S.Simakov, M.Sin, I.Sirakov, B.Sleaford, V.Sobes, E.S.Soukhovitskii, I.Stetcu, P.Talou, I.Thompson, S.van der Marck, L.Welser-Sherrill, D.Wiarda, M.White, J.L.Wormald, R.Q.Wright, M.Zerkle, G.Zerovnik, Y.Zhu

ENDF/B-VIII.0: The 8 th Major Release of the Nuclear Reaction Data Library with CIELO-project Cross Sections, New Standards and Thermal Scattering Data

COMPILATION Z=1-118; compiled, analyzed decay data, Maxwellian averaged neutron capture σ, neutron-induced fission σ.

NUCLEAR REACTIONS ^1,2H, ³He, ^6,7Li, ⁹Be, ^10,11B, ^12,13C, ^14,15N, ^16,17,18O, ¹⁹F, ^20,21,22Ne, ^22,23Na, ^24,25,26Mg, ^26,27Al, ^{28,29,30,31,32}Si, ³¹P, ^{32,33,34,35,36}S, ^35,36,37Cl, ^{36,37,38,39,40,41}Ar, ^39,40,41K, ^{40,41,42,43,44,45,46,47,48}Ca, ⁴⁵Sc, ^{46,47,48,49,50}Ti, ^49,50,51V, ^{50,51,52,53,54}Cr, ^54,55Mn, ^{54,55,56,57,58}Fe, ^58,59Co, ^{58,59,60,61,62,63,64}Ni, ^63,64,65Cu, ^{64,65,66,67,68,69,70}Zn, ^69,70,71Ga, ^{70,71,72,73,74,75,76}Ge, ^73,74,75As, ^{74,75,76,77,78,79,80,81,82}Se, ^79,80,81Br, ^{78,79,80,81,82,83,84,85,86}Kr, ^85,86,87Rb, ^{84,85,86,87,88,89,90}Sr, ^89,90,91Y, ^{90,91,92,93,94,95,96}Zr, ^93,94,95Nb, ^{92,93,94,95,96,97,98,99,100}Mo, ^98,99Tc, ^{96,97,98,99,100,101,102,103,104,105,106}Ru, ^103,104,105Rh, ^{102,103,104,105,106,107,108,109,110}Pd, ^{107,108,109,110,111,112,113,114,115,116,117,118}Ag, ^{106,107,108,109,110,111,112,113,114,115,116}Cd, ^113,114,115In, ^{112,113,114,115,116,117,118,119,120,121,122,123,124,125,126}Sn, ^{121,122,123,124,125,126}Sb, ^{120,121,122,123,124,125,126,127,128,129,130,121,132}Te, ^{127,128,129,130,131,132,133,134,135}I, ^{123,124,125,126,127,128,129,130,131,132,133,134,135,136}Xe, ^{133,134,135,136,137}Cs, ^{130,131,132,133,134,135,136,137,138,139,140}Ba, ^138,139,140La, ^{136,137,138,139,140,141,142,143,144}Ce, ^141,142,143Pr, ^{142,143,144,145,146,147,148,149,150}Nd, ^{143,144,145,146,147,148,149,151}Pm, ^{144,145,146,147,148,149,150,151,152,153,154}Sm, ^{151,152,153,154,155,156,157}Eu, ^{152,153,154,155,156,157,158,159,160}Gd, ^{158,159,160,161}Tb, ^{154,155,156,157,158,159,160,161,162,163,164}Dy, ^165,166Ho, ^{162,163,164,165,166,167,168,170,170}Er, ^{168,169,170,171}Tm, ^{168,169,170,171,172,173,174,175,176}Yb, ^175,176Lu, ^{174,175,176,177,178,179,180,181,182}Hf, ^180,181,182Ta, ^{180,181,182,183,184,185,186}W, ^185,186,187Re, ^{184,185,186,187,188,189,190,191,192}Os, ^191,192,193Ir, ^{190,191,192,193,194,195,196,197,198}Pt, ¹⁹⁷Au, ^{196,197,198,199,200,201,202,203,204}Hg, ^203,204,205Tl, ^{204,205,206,207,208,209,210}Pb, ^209,210Bi, ^208,209,210Po, ^{223,224,225,226}Ra, ^225,226,227Ac, ^{227,228,229,230,231,232,233,234}Th, ^{229,230,231,232,233}Pa, ^{230,231,232,233,234,235,236,237,238,239,240,241}U, ^{234,235,236,237,238,239}Np, ^{236,237,238,239,240,241,242,243,244,245,246}Pu, ^{240,241,242,243,244}Am, ^{240,241,242,243,244,245,246,247,248,249,250}Cm, ^{245,246,247,248,249,250}Bk, ^{246,247,248,249,250,251,252,253,254}Cf, ^{251,252,253,254,255}Es, ²⁵⁵Fm(n, γ), E=30 keV; calculated Maxwellian-averaged σ using ENDF/B-VIII.0 evaluated neutron library. Comparison with ENDF/B-VII.1 and KADONIS values.

NUCLEAR REACTIONS ^{227,228,229,230,231,232,233,234}Th, ^{229,230,231,232,233}Pa, ^{230,231,232,233,234,235,236,237,238,239,240,241}U, ^{234,235,236,237,238,239}Np, ^{236,237,238,239,240,241,242,243,244,245,246}Pu, ^{240,241,242,243,244}Am, ^{240,241,242,243,244,245,246,247,248,249,250}Cm, ^{245,246,247,248,249,250}Bk, ^{246,247,248,249,250,251,252,253,254}Cf, ^{251,252,253,254,255}Es, ²⁵⁵Fm(n, γ), (n, F), E=thermal; calculated thermal σ. Comparison with ENDF/B-VII.1, JENDL-4.0u+ and Atlas of Neutron Resonances values.

doi: 10.1016/j.nds.2018.02.001
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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
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2018CA08      Nucl.Data Sheets 148, 254 (2018)

R.Capote, A.Trkov, M.Sin, M.T.Pigni, V.G.Pronyaev, J.Balibrea, D.Bernard, D.Cano-Ott, Y.Danon, A.Daskalakis, T.Goricanec, M.W.Herman, B.Kiedrowski, S.Kopecky, E.Mendoza, D.Neudecker, L.Leal, G.Noguere, P.Schillebeeckx, I.Sirakov, E.S.Soukhovitskii, I.Stetcu, P.Talou

IAEA CIELO Evaluation of Neutron-induced Reactions on ²³⁵U and ²³⁸U Targets

NUCLEAR REACTIONS ^235,238U(n, X), E<20 MeV; analyzed available data; calculated σ, σ(θ), σ(θ, E).

doi: 10.1016/j.nds.2018.02.005
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2018CH12      Nucl.Data Sheets 148, 189 (2018)

M.B.Chadwick, R.Capote, A.Trkov, M.W.Herman, D.A.Brown, G.M.Hale, A.C.Kahler, P.Talou, A.J.Plompen, P.Schillebeeckx, M.T.Pigni, L.Leal, Y.Danon, A.D.Carlson, P.Romain, B.Morillon, E.Bauge, F.-J.Hambsch, S.Kopecky, G.Giorginis, T.Kawano, J.Lestone, D.Neudecker, M.Rising, M.Paris, G.P.A.Nobre, R.Arcilla, O.Cabellos, I.Hill, E.Dupont, A.J.Koning, D.Cano-Ott, E.Mendoza, J.Balibrea, C.Paradela, I.Duran, J.Qian, Z.Ge, T.Liu, L.Hanlin, X.Ruan, W.Haicheng, M.Sin, G.Noguere, D.Bernard, R.Jacqmin, O.Bouland, C.De Saint Jean, V.G.Pronyaev, A.V.Ignatyuk, K.Yokoyama, M.Ishikawa, T.Fukahori, N.Iwamoto, O.Iwamoto, S.Kunieda, C.R.Lubitz, M.Salvatores, G.Palmiotti, I.Kodeli, B.Kiedrowski, D.Roubtsov, I.Thompson, S.Quaglioni, H.I.Kim, Y.O.Lee, U.Fischer, S.Simakov, M.Dunn, K.Guber, J.I.Marquez Damian, F.Cantargi, I.Sirakov, N.Otuka, A.Daskalakis, B.J.McDermott, S.C.van der Marck

CIELO Collaboration Summary Results: International Evaluations of Neutron Reactions on Uranium, Plutonium, Iron, Oxygen and Hydrogen

NUCLEAR REACTIONS ¹H, ¹⁶O, ⁵⁶Fe, ^235,238U, ²³⁹Pu(n, X), E<20 MeV; analyzed available data; calculated σ, σ(θ), σ(θ, E).

doi: 10.1016/j.nds.2018.02.003
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2018DE08      Nucl.Data Sheets 148, 322 (2018)

M.Devlin, J.A.Gomez, K.J.Kelly, R.C.Haight, J.M.O'Donnell, T.N.Taddeucci, H.Y.Lee, S.M.Mosby, B.A.Perdue, N.Fotiades, J.L.Ullmann, C.Y.Wu, B.Bucher, M.Q.Buckner, R.A.Henderson, D.Neudecker, M.C.White, P.Talou, M.E.Rising, C.J.Solomon

The Prompt Fission Neutron Spectrum of ²³⁵U(n, f) below 2.5 MeV for Incident Neutrons from 0.7 to 20 MeV

NUCLEAR REACTIONS ²³⁵U(n, F), E=0.7-20 MeV; measured reaction products, En, In, TOF; deduced prompt fission neutron spectrum, σ(E).

doi: 10.1016/j.nds.2018.02.008
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2018NE02      Nucl.Data Sheets 148, 293 (2018)

D.Neudecker, P.Talou, T.Kawano, A.C.Kahler, M.C.White, T.N.Taddeucci, R.C.Haight, B.Kiedrowski, J.M.O'Donnell, J.A.Gomez, K.J.Kelly, M.Devlin, M.E.Rising

Evaluations of Energy Spectra of Neutrons Emitted Promptly in Neutron-induced Fission of ²³⁵U and ²³⁹Pu

NUCLEAR REACTIONS ²³⁵U, ²³⁹Pu(n, F)¹NN, E<20 MeV; analyzed available data; deduced σ(E), total kinetic energies.

doi: 10.1016/j.nds.2018.02.006
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2016CA03      Nucl.Data Sheets 131, 1 (2016)

R.Capote, Y.-J.Chen, F.-J.Hambsch, N.V.Kornilov, J.P.Lestone, O.Litaize, B.Morillon, D.Neudecker, S.Oberstedt, T.Ohsawa, N.Otuka, V.G.Pronyaev, A.Saxena, O.Serot, O.A.Shcherbakov, N.-C.Shu, D.L.Smith, P.Talou, A.Trkov, A.C.Tudora, R.Vogt, A.S.Vorobyev

Prompt Fission Neutron Spectra of Actinides

NUCLEAR REACTIONS ²³²Th, ^{233,234,235,238}U, ²³⁷Np, ²³⁹Pu(n, F), E<30 MeV; calculated prompt fission En, In; Comparison with available data.

doi: 10.1016/j.nds.2015.12.002
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset33084.

2016NE02      Nucl.Data Sheets 131, 289 (2016)

D.Neudecker, T.N.Taddeucci, R.C.Haight, H.Y.Lee, M.C.White, M.E.Rising

The Need for Precise and Well-documented Experimental Data on Prompt Fission Neutron Spectra from Neutron-induced Fission of ²³⁹Pu

NUCLEAR REACTIONS ²³⁹Pu(n, F), E<20 MeV; calculated prompt fission En, In. Comparison with available data.

doi: 10.1016/j.nds.2015.12.005
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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
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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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2015NE02      Nucl.Data Sheets 123, 146 (2015)

D.Neudecker, P.Talou, T.N.Taddeucci, R.C.Haight, T.Kawano, H.Y.Lee, D.L.Smith, R.Capote, M.E.Rising, M.C.White

Preliminary Evaluation and Uncertainty Quantification of the Prompt Fission Neutron Spectrum of ²³⁹Pu

NUCLEAR REACTIONS ²³⁹Pu(n, X), E<20 MeV; calculated σ correlation matrices, prompt fission neutron spectrum and associated covariances. ENDF/B-VII.1 evaluated nuclear data library.

doi: 10.1016/j.nds.2014.12.026
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2015NE08      Nucl.Instrum.Methods Phys.Res. A791, 80 (2015)

D.Neudecker, P.Talou, T.Kawano, D.L.Smith, R.Capote, M.E.Rising, A.C.Kahler

Evaluation of the ²³⁹Pu prompt fission neutron spectrum induced by neutrons of 500 keV and associated covariances

NUCLEAR REACTIONS ²³⁹Pu(n, F), E=500 keV; analyzed available data; deduced σ(E) and its covariances. Comparison with ENDF/B-VII.1 evaluated nuclear library.

doi: 10.1016/j.nima.2015.04.044
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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
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2015TA10      J.Phys.(London) G42, 034025 (2015)

P.Talou, T.Kawano, M.B.Chadwick, D.Neudecker, M.E.Rising

Uncertainties in nuclear fission data

NUCLEAR REACTIONS ²³⁵U, ²³⁹Pu(n, F), E<20 MeV; analyzed available data; deduced fission fragment yields, prompt fission neutrons and γ-rays, average prompt fission neutron spectrum (PFNS), σ uncertainties. Comparison with ENDF/B-VII.0 library.

doi: 10.1088/0954-3899/42/3/034025
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2014NE05      Nucl.Data Sheets 118, 353 (2014)

D.Neudecker, P.Talou, T.Kawano, F.Tovesson

Advanced Uncertainty Quantification For Fission Observables

NUCLEAR REACTIONS ²³⁷Np(n, F), E=0.5-20 MeV; evaluated σ, σ uncertainties; deduced correlation matrix, influence of correlations.

doi: 10.1016/j.nds.2014.04.078
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2014NE06      Nucl.Data Sheets 118, 364 (2014)

D.Neudecker, R.Fruhwirth, T.Kawano, H.Leeb

Adequate Treatment of Correlated Experimental Data in Nuclear Data Evaluations Avoiding Peelle's Pertinent Puzzle

NUCLEAR REACTIONS ²³⁷Np(n, F), E=35-200 MeV; evaluated σ using two different estimates of covariance matrix. Compared to data.

doi: 10.1016/j.nds.2014.04.081
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2011LE30      J.Korean Phys.Soc. 59, 959s (2011)

H.Leeb, St.Gundacker, D.Neudecker, Th.Srdinko, V.Wildpaner

The GENEUS Project - Development of an Evaluation Tool

NUCLEAR REACTIONS ⁵⁵Mn(n, 2n), E≈150 MeV; calculated, evaluated σ, covariance matrix. Baynesian statistics, GENEUS program package.

doi: 10.3938/jkps.59.959
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2011LE34      J.Korean Phys.Soc. 59, 1230s (2011)

H.Leeb, St.Gundacker, D.Neudecker, Th.Srdinko, V.Wildpaner

Bayesian Based Uncertainties of Neutron-Induced Reaction Cross Sections of Mn-55

NUCLEAR REACTIONS ⁵⁵Mn(n, n), (n, n'), (n, 2n), (n, 3n), (n, 4n), (n, α), (n, p), (n, ³H), (n, pα), E=1-150 MeV; calculated, evaluated σ, σ covariances; deduced optical model parameters, uncertainties. TALYS-1.0, comparison with data.

doi: 10.3938/jkps.59.1230
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2011NE10      J.Korean Phys.Soc. 59, 951s (2011)

D.Neudecker, J.Haidvogl, H.Leeb

Excitation-Dependent Nucleon-Nucleus Optical Potentials

NUCLEAR REACTIONS ⁵⁶Fe(n, n), E=135 MeV; calculated σ(θ); deduced optical model potential using nuclear matter approach with g-matrix evaluated using Bethe-Goldstoen potential with Pauli operator.

doi: 10.3938/jkps.59.951
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2011NE11      J.Korean Phys.Soc. 59, 1272s (2011)

D.Neudecker, St.Gundacker, Th.Srdinko, V.Wildpaner, H.Leeb

Comparison of Covariance Matrices Obtained by Different Methods

COMPILATION ²⁰⁸Pb(n, p), E=1.2-3.7 eV;²⁰⁸Pb(n, X), E=0.5-2.7 eV; compiled experimental, calculated σ. ²⁰⁸Pb(n, X), (n, p), E=0-25 MeV; calculated, evaluated correlation matrix.

doi: 10.3938/jkps.59.1272
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2008LE24      Nucl.Data Sheets 109, 2762 (2008)

H.Leeb, D.Neudecker, Th.Srdinko

Consistent Procedure for Nuclear Data Evaluation Based on Modeling

doi: 10.1016/j.nds.2008.11.006
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