NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = P.E.Koehler Found 69 matches. 2023MA44 Sci. Rep. 13, 1736 (2023) A.V.Matyskin, A.Stamatopoulos, E.M.O'Brien, B.J.DiGiovine, V.Mocko, M.E.Fassbender, C.E.Vermeulen, P.E.Koehler Production of zirconium-88 via proton irradiation of metallic yttrium and preparation of target for neutron transmission measurements at DICER NUCLEAR REACTIONS 89Y(p, X)88Zr, E=32.7, 34.3 MeV; measured reaction products, Eγ, Iγ; deduced integrated reaction rate, elution yields. Comparison with available data. Los Alamos Isotope Production Facility (IPF). NUCLEAR REACTIONS Zr(n, X), E<30 eV; measured reaction products, En, In, TOF; deduced transmission. Comparison with ENDF/B-VII.0 library. The DICER (Device for Indirect Capture Experiments on Radionuclides) instrument, Los Alamos Neutron Science Center (LANSCE).
doi: 10.1038/s41598-023-27993-7
2022KO15 Phys.Rev. C 105, 054306 (2022) Improved 95Mo neutron resonance parameters and astrophysical reaction rates NUCLEAR REACTIONS 95Mo(n, γ), E=3-500 keV; measured neutron time-of-flight, In, En, neutron transmission; deduced σ(E), astrophysical reaction rates, average resonance spacings, neutron strength functions, resonance parameters - radiation and reduced-neutron widths, energy, J, π, p- and s-wave parameters. 95Mo(n, α);E=0.001-5.2 keV; analyzed σ(θ) from 2003RA26; deduced resonance parameters with fitting the data using obtained capture and transmission data. R-matrix analysis done with SAMMY code. Comparison to other experimental data, TALYS-1.8 calculations with different level densities models and to ENDF/B-VIII.0 evaluated data. Pulsed neutron beam provided by The Oak Ridge Electron Linear Accelerator (ORELA).
doi: 10.1103/PhysRevC.105.054306
2022KO29 Eur.Phys.J. A 58, 195 (2022) P.E.Koehler, J.L.Ullmann, A.J.Couture, S.M.Mosby Constraining the nuclear spin distribution using improved 197Au neutron resonance parameters NUCLEAR REACTIONS 197Au(n, X), E<3 keV; measured reaction products, En, In; deduced transmission, resonance parameters, distributions of total radiation widths for 197Au neutron resonances . R-matrix analysis. Comparison with available data, ENDF library. An early version of the Device for Indirect Capture Experiments on Radionuclides (DICER), which is under development at the Los Alamos Neutron Science Center (LANSCE).
doi: 10.1140/epja/s10050-022-00842-3
2017KH08 Phys.Rev. C 95, 045805 (2017) B.V.Kheswa, M.Wiedeking, J.A.Brown, A.C.Larsen, S.Goriely, M.Guttormsen, F.L.Bello Garrote, L.A.Bernstein, D.L.Bleuel, T.K.Eriksen, F.Giacoppo, A.Gorgen, B.L.Goldblum, T.W.Hagen, P.E.Koehler, M.Klintefjord, K.L.Malatji, J.E.Midtbo, H.T.Nyhus, P.Papka, T.Renstrom, S.J.Rose, E.Sahin, S.Siem, T.G.Tornyi 137, 138, 139La (n, γ) cross sections constrained with statistical decay properties of 138, 139, 140La nuclei NUCLEAR REACTIONS 139La(3He, α), (3He, 3He'), E=38 MeV; 139La(d, p), E=13.5 MeV; measured α, 3He and proton spectra, Eγ, Iγ, αγ-, (3He)γ-, and pγ-coin using SiRi array for particles and CACTUS array for γ rays. 138,139,140La; deduced nuclear level densities (NLDs)and γ-ray strength functions (γSF). Comparison with previous experimental data, and with microscopic calculations using HFB+Comb, Fermi gas (BSFG1+CT) and BSFG2+CT models. 137,138,139La(n, γ), E=0.001-1 MeV; calculated σ(E) with the TALYS reaction code using the measured NLDs and γSFs as inputs, and compared to available experimental data.
doi: 10.1103/PhysRevC.95.045805
2015GI02 Phys.Rev. C 91, 054327 (2015) F.Giacoppo, F.L.Bello Garrote, L.A.Bernstein, D.L.Bleuel, R.B.Firestone, A.Gorgen, M.Guttormsen, T.W.Hagen, M.Klintefjord, P.E.Koehler, A.C.Larsen, H.T.Nyhus, T.Renstrom, E.Sahin, S.Siem, T.Tornyi γ decay from the quasicontinuum of 197, 198Au NUCLEAR REACTIONS 197Au(d, p), E=12.5 MeV; 197Au(3He, 3He'), E=34.0 MeV; measured Eγ, Iγ, particle spectra, (particle)γ-coin using CACTUS spectrometer for γ rays and SiRi (Silicon Ring) for particle detection at Oslo Cyclotron Laboratory; deduced γ strength functions, level density, spin cutoff distributions as function of excitation energy, σ(E) for 197Au(n, γ). Comparison with (γ, n) experimental results, and with theoretical calculations using EGLO model with four SLO components, and QRPA.
doi: 10.1103/PhysRevC.91.054327
2015KH02 Phys.Lett. B 744, 268 (2015) B.V.Kheswa, M.Wiedeking, F.Giacoppo, S.Goriely, M.Guttormsen, A.C.Larsen, F.L.Bello Garrote, T.K.Eriksen, A.Gorgen, T.W.Hagen, P.E.Koehler, M.Klintefjord, H.T.Nyhus, P.Papka, T.Renstrom, S.Rose, E.Sahin, S.Siem, T.Tornyi Galactic production of 138La: Impact of 138, 139La statistical properties NUCLEAR REACTIONS 139La(3He, X)138La/139La, E=38 MeV; measured reaction products, Eγ, Iγ; deduced σ, γ-ray strength functions, nuclear level densities, Maxwellian-averaged σ. Comparison with available data.
doi: 10.1016/j.physletb.2015.03.065
2014GI08 Phys.Rev. C 90, 054330 (2014) F.Giacoppo, F.L.Bello Garrote, L.A.Bernstein, D.L.Bleuel, T.K.Eriksen, R.B.Firestone, A.Gorgen, M.Guttormsen, T.W.Hagen, B.V.Kheswa, M.Klintefjord, P.E.Koehler, A.C.Larsen, H.T.Nyhus, T.Renstrom, E.Sahin, S.Siem, T.Tornyi Level densities and thermodynamical properties of Pt and Au isotopes NUCLEAR REACTIONS 195Pt(d, p), (p, p'), (p, d), E=11.3, 16.5 MeV; 197Au(d, p), (d, d'), E=12.5 MeV; 197Au(3He, 3He'), E=34.0 MeV; measured Eγ, Iγ, particle spectra, (particle)γ-coin using SiRi particle detector array and CACTUS multidetector array for γ rays at Oslo cyclotron facility. 194,195,196Pt, 197,198Au; deduced level densities from the population of excited states below S(n), density as function of temperature, single-particle level space for the last unpaired valence neutron, heat capacity and temperature, evidence of consecutive breaking of nucleon Cooper pairs in the heated nuclear system.
doi: 10.1103/PhysRevC.90.054330
2013KO05 Fortsch.Phys. 61, 80 (2013) P.E.Koehler, F.Becvar, M.Krticka, K.H.Guber, J.L.Ullmann Neutron resonance data exclude random matrix theory NUCLEAR REACTIONS 147Sm, 192,194Pt, 232Th(n, γ), E<15 keV; analyzed available data; deduced disagreements with random matrix theory.
doi: 10.1002/prop.201200067
2013KO24 Phys.Rev. C 88, 035802 (2013) Improved 192, 194, 195, 196Pt(n, γ) and 192Ir(n, γ) astrophysical reaction rates NUCLEAR REACTIONS 192,194,195,196Pt(n, γ), E=3-500 keV; measured neutron spectra by TOF, capture σ(E) using ORELA at ORNL facility; deduced Maxwellian averaged cross sections, average resonance parameters, astrophysical reaction rates, effect on photon-strength functions. R-matrix analysis. Comparison with calculations using TALYS code, and with KADoNiS compilation. 191,193Ir(n, γ), E=3-400 keV; analyzed σ(E); deduced reduced σ(E) compared with TALYS calculations. 192Ir(n, γ), kT=5-40 keV; deduced Maxwellian averaged cross sections. Application to s-process nucleosynthesis.
doi: 10.1103/PhysRevC.88.035802
2013KO27 Phys.Rev. C 88, 041305 (2013) P.E.Koehler, A.C.Larsen, M.Guttormsen, S.Siem, K.H.Guber Extreme nonstatistical effects in γ decay of 95Mo neutron resonances NUCLEAR REACTIONS 95Mo(n, γ), E=white neutron source; measured Eγ, Iγ, γγ-coin using ORELA facility at ORNL; deduced levels, resonance energies, J, π, Γn, total Γγ for s- and p-wave resonances of six Jπ values. R-matrix analysis. Large set of experimental Γγ values. Poor fit in comparison with nuclear statistical model calculations; better agreement with inclusion of doorway effects.
doi: 10.1103/PhysRevC.88.041305
2013UT02 Phys.Rev. C 88, 015805 (2013) H.Utsunomiya, S.Goriely, T.Kondo, C.Iwamoto, H.Akimune, T.Yamagata, H.Toyokawa, H.Harada, F.Kitatani, Y.-W.Lui, A.C.Larsen, M.Guttormsen, P.E.Koehler, S.Hilaire, S.Peru, M.Martini, A.J.Koning Photoneutron cross sections for Mo isotopes: A step toward a unified understanding of (γ, n) and (n, γ) reactions NUCLEAR REACTIONS 94,95,96,97,98,100Mo(γ, n), E=7.55-13.00 MeV laser Compton scattered (LCS) γ rays; measured neutron spectra, σ(E). Comparison with previous experimental measurements, and with predictions of Skyrme Hartree-Fock-Bogoliubov (HFB) plus quasiparticle random phase approximation (QRPA) model, and axially symmetric-deformed Gogny HFB plus QRPA model of E1 γ-ray strength. 94,95,96,97(n, γ); analyzed σ(E) data by combining data from (γ, n), (γ, γ'), (3He, αγ) and (3He, 3He'γ) experiments. 93,99Mo(n, γ); predicted TALYS σ using (γ, γ') and (3He, 3He'γ) data. Comparison with JENDL-4.0, ENDF/B-VII.1, and ROSFOND-2010 evaluated reaction data files.
doi: 10.1103/PhysRevC.88.015805
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
2012KR10 J.Phys.:Conf.Ser. 337, 012012 (2012) M.Krticka, P.E.Koehler, F.Becvar, J.A.Harvey, K.H.Guber Anomalous properties of neutron resonances in Pt isotopes NUCLEAR REACTIONS Pt, 192,194,195,196Pt(n, γ), (n, X), E≈10 eV-300 keV; re-analyzed earlier data of the authors on s-wave neutron widths, total radiation width distribution in even-even Pt targets using multilevel multichannel R-matrix code SAMMY; deduced resonance parameters, number of degrees of freedom of their width distributions.
doi: 10.1088/1742-6596/337/1/012012
2011BE58 Nucl.Instrum.Methods Phys.Res. A647, 73 (2011) F.Becvar, P.E.Koehler, M.Krticka, G.E.Mitchell, J.L.Ullmann Optimized γ-multiplicity-based spin assignments of s-wave neutron resonances NUCLEAR REACTIONS 147,149Sm(n, γ), E<600 eV; analyzed available data; deduced yields, neutron resonance parameters. Comparison with available data.
doi: 10.1016/j.nima.2011.04.026
2011GU24 J.Korean Phys.Soc. 59, 1685s (2011) K.H.Guber, P.E.Koehler, D.Wiarda, J.A.Harvey Neutron Cross-Section Measurements on Structural Materials at ORELA NUCLEAR REACTIONS 48Ti(n, γ), E=5-50 keV;53Cr(n, γ), E=0-22 keV; measured Eγ, Iγ using white neutron source ORELA; deduced σ, transmission coefficients. Compared with ENDF/B-VII.
doi: 10.3938/jkps.59.1685
2011KO35 Phys.Rev. C 84, 034312 (2011) Reduced neutron widths in the nuclear data ensemble: Experiment and theory do not agree NUCLEAR STRUCTURE 64,66,68Zn, 114Cd, 152,154Sm, 154,156,158,160Gd, 160,162,164Dy, 166,168,170Er, 172,174,176Yb, 182,184,186W, 232Th, 238U; analyzed reduced neutron widths for 1245 neutron resonances in the nuclear data ensemble (NDE); deduced disagreement with Porter Thomas distribution (PTD) based on Random matrix theory (RMT) predictions.
doi: 10.1103/PhysRevC.84.034312
2011KO55 J.Korean Phys.Soc. 59, 2088s (2011) P.E.Koehler, J.A.Harvey, F.Becvar, M.Krticka, K.H.Guber New Techniques for Determining Spins and Parities of Neutron Resonances and Their Impact on Nuclear Astrophysics COMPILATION 95Mo(n, γ), E=resonance; compiled, analyzed parity distributions. 95Mo, 120Sn, 194Pt(n, γ), E=resonance; calculated, analyzed γ widths, GDR parameters for s- or p-wave resonances using R-matrix applied to ORELA data, DICEBOX.
doi: 10.3938/jkps.59.2088
2011ZH50 Phys.Rev.Lett. 107, 252502 (2011) G.Zhang, Yu.M.Gledenov, G.Khuukhenkhuu, M.V.Sedysheva, P.J.Szalanski, P.E.Koehler, Yu.N.Voronov, J.Liu, X.Liu, J.Han, J.Chen 149Sm(n, α)146Nd Cross Sections in the MeV Region NUCLEAR REACTIONS 149Sm(n, α), E=4.5, 5.0, 5.5, 6.0, 6.5 MeV; measured Eα, Iα, En, In; deduced σ. Comparison with TALYS code calculations and evaluated nuclear libraries.
doi: 10.1103/PhysRevLett.107.252502
2010GL03 Phys.Rev. C 82, 014601 (2010) Yu.M.Gledenov, G.Zhang, G.Khuukhenkhuu, M.V.Sedysheva, P.J.Szalanski, P.E.Koehler, J.Liu, H.Wu, X.Liu, J.Chen Cross-section measurement and analysis for the 149Sm(n, γ)146Nd reaction at 6.0 MeV NUCLEAR REACTIONS 149Sm(n, α), E=6.0 MeV; measured σ. Comparison with statistical-model calculations using TALYS code and with existing evaluations in various databases such as ENDF/B-VII.
doi: 10.1103/PhysRevC.82.014601
2010GU19 Phys.Rev. C 82, 057601 (2010) K.H.Guber, H.Derrien, L.C.Leal, G.Arbanas, D.Wiarda, P.E.Koehler, J.A.Harvey Astrophysical reaction rates for 58, 60Ni(n, γ) from new neutron capture cross section measurements NUCLEAR REACTIONS 58,60Ni(n, γ), E=0.100-600 keV; measured E(n), I(n) using time-of-flight method, Maxwellian-averaged σ in the region of astrophysics. R-matrix analysis. Comparison with evaluated reaction cross section libraries.
doi: 10.1103/PhysRevC.82.057601
2010KO21 Phys.Rev.Lett. 105, 072502 (2010) P.E.Koehler, F.Becvar, M.Krticka, J.A.Harvey, K.H.Guber Anomalous Fluctuations of s-Wave Reduced Neutron Widths of 192, 194Pt Resonances NUCLEAR REACTIONS 192,194Pt(n, γ), 197Au(n, γ), E not given; analyzed experimental data using R-matrix; deduce neutron widths, resonance parameters, rejection of Porter-Thomas distribution. SAMMY code.
doi: 10.1103/PhysRevLett.105.072502
2010ZH01 Appl.Radiat.Isot. 68, 180 (2010) G.Zhang, H.Wu, J.Zhang, J.Liu, Y.Yin, J.Chen, Yu.M.Gledenov, M.V.Sedysheva, G.Khuukhenkhuu, P.E.Koehler, P.J.Szalanski Cross section measurement for the 95Mo(n, α)92Zr reaction at 4.0, 5.0 and 6.0 MeV NUCLEAR REACTIONS 95Mo(n, α), E=4, 5, 6 MeV; measured Iα, Eα, reaction fragments; deduced σ. Comparison with ENDF/B-VII.0, JEFF-3.1/A and JENDL-3.3 libraries.
doi: 10.1016/j.apradiso.2009.09.013
2009GL02 Phys.Rev. C 80, 044602 (2009) Yu.M.Gledenov, M.V.Sedysheva, V.A.Stolupin, G.Zhang, J.Zhang, H.Wu, J.Liu, J.Chen, G.Khuukhenkhuu, P.E.Koehler, P.J.Szalanski Cross sections of the 143Nd(n, α)140Ce and 147Sm(n, α)144Nd reactions in the MeV neutron energy region NUCLEAR REACTIONS 143Nd(n, α)140Ce, E=4.0, 5.0, 6.0 MeV; 147Sm(n, α)144Nd, E=5.0, 6.0 MeV; measured α spectra, σ, forward and backward α rates. 143Nd, 147Sm(n, α), E=0.5 keV-20 MeV; compared present and previous measured cross sections with several evaluations, and calculations from TALYS code.
doi: 10.1103/PhysRevC.80.044602
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
2007NA05 J.Nucl.Sci.Technol.(Tokyo) 44, 21 (2007) S.Nakamura, H.Harada, S.Raman, P.E.Koehler Thermal Neutron Capture Cross Sections of Zirconium-91 and Zirconium-93 by Prompt γ-ray Spectroscopy NUCLEAR REACTIONS 91,93Zr(n, γ), E=thermal; measured prompt Eγ, Iγ; deduced σ lower limits.
doi: 10.1080/18811248.2007.9711252
2007NA10 J.Nucl.Sci.Technol.(Tokyo) 44, 103 (2007) S.Nakamura, H.Harada, S.Raman, P.E.Koehler Thermal Neutron Capture Cross Section of Palladium-107 NUCLEAR REACTIONS 107Pd(n, γ), E=thermal; measured Eγ, Iγ; deduced capture σ. Comparison with previous results.
doi: 10.1080/18811248.2007.9711262
2005GU34 Nucl.Instrum.Methods Phys.Res. B241, 218 (2005) K.H.Guber, L.C.Leal, R.O.Sayer, P.E.Koehler, T.E.Valentine, H.Derrien, J.A.Harvey New neutron cross-section measurements at ORELA and their application in nuclear criticality calculations NUCLEAR REACTIONS 35Cl(n, X), E ≈ 10-1000 keV; measured total σ. Comparison with previous results, other targets discussed.
doi: 10.1016/j.nimb.2005.07.083
2005KO30 Nucl.Phys. A758, 493c (2005) Progress and Challenges in Determining Reaction Rates for the s and p Processes NUCLEAR REACTIONS 30Si, 142Nd, 154Eu(n, γ), 147Sm(n, α), E=low; calculated astrophysical reaction rates.
doi: 10.1016/j.nuclphysa.2005.05.091
2004KO06 Phys.Rev. C 69, 015803 (2004) P.E.Koehler, Yu.M.Gledenov, T.Rauscher, C.Frohlich Resonance analysis of 147Sm(n, α) cross sections: Comparison to optical model calculations and indications of nonstatistical effects NUCLEAR REACTIONS 147Sm(n, α), E=0.003-500 keV; measured σ; deduced resonance parameters, nonstatistical features. R-matrix analysis, comparison with model predictions.
doi: 10.1103/PhysRevC.69.015803
2004PA06 Phys.Rev. C 69, 025803 (2004) N.Patronis, S.Dababneh, P.A.Assimakopoulos, R.Gallino, M.Heil, F.Kappeler, D.Karamanis, P.E.Koehler, A.Mengoni, R.Plag Neutron capture studies on unstable 135Cs for nucleosynthesis and transmutation NUCLEAR REACTIONS 135Cs(n, γ), E=30, 500 keV; measured capture σ. 133,134,135,136,137Cs(n, γ), E=low; deduced Maxwellian averaged σ. Activation technique, comparison with previous results. RADIOACTIVITY 136Cs(β-) [from 135Cs(n, γ)]; measured T1/2.
doi: 10.1103/PhysRevC.69.025803
2003GU05 Phys.Rev. C 67, 062802 (2003) K.H.Guber, P.E.Koehler, H.Derrien, T.E.Valentine, L.C.Leal, R.O.Sayer, T.Rauscher Neutron capture reaction rates for silicon and their impact on the origin of presolar mainstream SiC grains NUCLEAR REACTIONS 28,29,30Si(n, γ), E=0.1-700 keV; measured capture σ; deduced resonance parameters, astrophysical reaction rates.
doi: 10.1103/PhysRevC.67.062802
2003RA26 Phys.Rev. C 68, 015802 (2003) W.Rapp, P.E.Koehler, F.Kappeler, S.Raman 95Mo(n, α) cross section from 1 eV to 500 keV: A test of the α + nucleus optical potential used in calculating reaction rates for explosive nucleosynthesis NUCLEAR REACTIONS 95Mo(n, α), E=0.001-500 keV; measured σ; deduced resonance parameters. Determination of global α-nucleus potential parameters discussed.
doi: 10.1103/PhysRevC.68.015802
2002GL03 Fiz.Elem.Chastits At.Yadra 33, 261 (2002); Phys.Part.Nucl. 33, 129 (2002) Investigation of (n, p) and (n, α) Reactions Induced by Thermal and Resonant Neutrons NUCLEAR REACTIONS 3He, 7,10Be, 14N, 22Na, 26Al, 35,36Cl, 37Ar, 40K, 41Ca, 50V, 59Ni(n, p), E=low; 6Li, 7,10Be, 17O, 21Ne, 22Na, 26Al, 33S, 36Cl, 36,37Ar, 40K, 41Ca, 59Ni, 147Sm(n, α), E=low; compiled, analyzed σ, particle spectra, resonance parameters. Astrophysical aspects discussed.
2002GU17 Phys.Rev. C65, 058801 (2002) K.H.Guber, R.O.Sayer, T.E.Valentine, L.C.Leal, R.R.Spencer, J.A.Harvey, P.E.Koehler, T.Rauscher New Maxwellian Averaged Neutron Capture Cross Sections for 35, 37Cl NUCLEAR REACTIONS 35,37Cl(n, γ), (n, X), E=0.1-600 keV; measured capture and total σ; deduced parameters, Maxwellian averaged σ, astrophysical reaction rates.
doi: 10.1103/PhysRevC.65.058801
2002KO57 Phys.Rev. C 66, 055805 (2002) Constraints on the 22Ne(α, n)25Mg s-process neutron source from analysis of natMg+n total and 25Mg(n, γ) cross sections NUCLEAR REACTIONS Mg(n, X), 25Mg(n, γ), E < 500 MeV; analyzed data; deduced resonance parameters. 22Ne(α, n), E=low; deduced astrophysical reaction rate uncertainties.
doi: 10.1103/PhysRevC.66.055805
2001GU26 Nucl.Sci.Eng. 139, 111 (2001) K.H.Guber, R.R.Spencer, L.C.Leal, P.E.Koehler, J.A.Harvey, R.O.Sayer, H.Derrien, T.E.Valentine, D.E.Pierce, V.M.Cauley, T.A.Lewis High-Resolution Transmission Measurements of 233U using a Cooled Sample at the Temperature T = 11 K NUCLEAR REACTIONS 233U(n, X), E < 300 keV; measured total σ. High-resolution transmission spectra, comparisons with previous results.
doi: 10.13182/NSE01-A2226
2001KO36 Nucl.Phys. A688, 86c (2001) P.E.Koehler, Yu.M.Gledenov, J.Andrzejewski, K.H.Guber, S.Raman, T.Rauscher Improving Explosive Nucleosynthesis Models via (n, α) Measurements NUCLEAR REACTIONS 143Nd, 147Sm(n, α), E=1, 500 keV; measured σ. Comparison with earlier data and with Statistical Model calculations.
doi: 10.1016/S0375-9474(01)00674-1
2001KO76 Phys.Rev. C64, 065802 (2001) P.E.Koehler, J.A.Harvey, R.R.Winters, K.H.Guber, R.R.Spencer High-Resolution Neutron Capture and Transmission Measurements for 116, 120Sn, and Their Stellar Neutron-Capture Cross Sections at s-Process Temperatures NUCLEAR REACTIONS 116,120Sn(n, γ), (n, X), E=0.05-500 keV; measured total and capture σ; deduced resonance parameters, astrophysical reaction rates. Comparison with previous results.
doi: 10.1103/PhysRevC.64.065802
2000GL06 Phys.Rev. C62, 042801 (2000) Yu.M.Gledenov, P.E.Koehler, J.Andrzejewski, K.H.Guber, T.Rauscher 147Sm(n, α) Cross Section Measurements from 3 eV to 500 keV: Implications for explosive nucleosynthesis reaction rates NUCLEAR REACTIONS 147Sm(n, α), E=0.003-500 keV; measured σ. Comparisons with statistical models for nucleosynthesis.
doi: 10.1103/PhysRevC.62.042801
2000KO58 Phys.Rev. C62, 055803 (2000); Erratum Phys.Rev. C63, 049901 (2001) P.E.Koehler, R.R.Winters, K.H.Guber, T.Rauscher, J.A.Harvey, S.Raman, R.R.Spencer, J.C.Blackmon, D.C.Larson, D.W.Bardayan, T.A.Lewis High-Resolution Neutron Capture and Transmission Measurements, and the Stellar Neutron-Capture Cross Section of 88Sr NUCLEAR REACTIONS 88Sr(n, γ), (n, X), E=0.1-950 keV; measured Eγ, Iγ, capture and total σ; deduced resonance parameters, astrophysical reaction rates. R-matrix analysis, comparisons with previous results.
doi: 10.1103/PhysRevC.62.055803
1998KO07 Phys.Rev. C57, R1558 (1998) P.E.Koehler, R.R.Spencer, K.H.Guber, R.R.Winters, S.Raman, J.A.Harvey N.W.Hill, J.C.Blackmon, D.W.Bardayan, D.C.Larson, T.A.Lewis, D.E.Pierce, M.S.Smith High Resolution Neutron Capture and Transmission Measurements on 137Ba and Their Impact on the Interpretation of Meteoric Barium Anomalies NUCLEAR REACTIONS 137Ba(n, γ), E=20 eV-500 keV; measured capture σ(E); deduced astrophysical reaction rates. Comparison with meteorite isotopic abundances.
doi: 10.1103/PhysRevC.57.R1558
1998SE21 Phys.Rev. C58, 2977 (1998) S.J.Seestrom, J.D.Bowman, B.E.Crawford, P.P.J.Delheij, C.M.Frankle, C.R.Gould, D.G.Haase, M.Iinuma, J.N.Knudson, P.E.Koehler, L.Y.Lowie, A.Masaike, Y.Masuda, Y.Matsuda, G.E.Mitchell, S.I.Penttila, Yu.P.Popov, H.Postma, N.R.Roberson, E.I.Sharapov, H.M.Shimizu, D.A.Smith, S.L.Stephenson, Y.F.Yen, V.W.Yuan Parity Nonconservation in Neutron Capture on 113Cd NUCLEAR REACTIONS Cd, 113Cd(polarized n, γ), E=7-520 eV; measured Eγ, Iγ, transmission spectra, total capture σ helicity dependence. 113Cd deduced resonances J, π, widths, parity-violating asymmetries.
doi: 10.1103/PhysRevC.58.2977
1997GU04 Phys.Rev.Lett. 78, 2704 (1997) K.H.Guber, R.R.Spencer, P.E.Koehler, R.R.Winters New 142,144Nd(n, γ) Cross Sections and the s-Process Origin of the Nd Anomalies in Presolar Meteoric Silicon Carbide Grains NUCLEAR REACTIONS 142,144Nd(n, γ), E=5-50 keV; measured Maxwellian averaged σ; deduced s-process nucleosyntheis related features in the Ce-Nd-Sm region.
doi: 10.1103/PhysRevLett.78.2704
1997GU15 Nucl.Phys. A621, 254c (1997) K.H.Guber, R.R.Spencer, P.E.Koehler, R.R.Winters A BaF2 Detector System for (n, γ) Cross Section Measurements at ORELA NUCLEAR REACTIONS 142Nd(n, γ), E=2-3 keV; measured neutron tof vs Eγ, multiplicity. 144Nd, 197Au(n, γ), E=1-2 keV; measured tof spectra; deduced detector characteristics. 4π BaF2 detector array.
doi: 10.1016/S0375-9474(97)00249-2
1997GU16 Nucl.Phys. A621, 266c (1997) K.H.Guber, R.R.Spencer, P.E.Koehler, R.R.Winters Measurements of 142,144Nd(n, γ) Cross Sections at ORELA for Astrophysical s-Process Studies NUCLEAR REACTIONS 142,144Nd(n, γ), E < 200 keV; measured σ; deduced reaction rates. Astrophysical s-process implications.
doi: 10.1016/S0375-9474(97)00252-2
1997KE06 Nucl.Phys. A621, 243c (1997) V.V.Ketlerov, A.A.Goverdovsky, V.A.Khryachkov, V.F.Mitrofanov, Yu.B.Ostapenko, R.C.Haight, P.E.Koehler, S.M.Grimes, R.S.Smith Detailed Study of Double-Differential Cross-Sections for the 17O(n, α)14C Reaction NUCLEAR REACTIONS 17O(n, γ), E < 1.01 MeV; measured α spectra, σ(θ).
doi: 10.1016/S0375-9474(97)00246-7
1997KO31 Phys.Rev. C56, 1138 (1997) P.E.Koehler, R.W.Kavanagh, R.B.Vogelaar, Yu.M.Gledenov, Yu.P.Popov 26Al(n, p1) and (n, α0) Cross Sections from Thermal Energy to 70 keV and the Nucleosynthesis of 26Al NUCLEAR REACTIONS 26Al(n, α), E thermal-10 keV; 26Al(n, p), E thermal-70 keV; measured σ(E); deduced astrophysical reaction rates. 27Al deduced resonances, Γ, resonance strength.
doi: 10.1103/PhysRevC.56.1138
1997KO35 Nucl.Phys. A621, 258c (1997) P.E.Koehler, R.R.Spencer, R.R.Winters, K.H.Guber, J.A.Harvey, N.W.Hill, M.S.Smith New Neutron Capture and Transmission Measurements for 134,136Ba at ORELA and Their Impact on s-Process Nucleosynthesis Calculations NUCLEAR REACTIONS 134,136Ba(n, γ), E < 500 keV; measured σ; deduced reaction rates. Other data compared, astrophysical s-process implications.
doi: 10.1016/S0375-9474(97)00250-9
1996DA42 Nucl.Sci.Eng. 124, 482 (1996) Y.Danon, M.S.Moore, P.E.Koehler, P.E.Littleton, G.G.Miller, M.A.Ott, L.J.Rowton, W.A.Taylor, J.B.Wilhelmy, M.A.Yates, A.D.Carlson, N.W.Hill, R.Harper, R.Hilko Fission Cross-Section Measurements of the Odd-Odd Isotopes 232Pa, 238Np, and 236Np NUCLEAR REACTIONS, ICPND 232Th(p, n), (p, 3n), E=threshold-20 MeV; 232Th(d, n), (d, 2n), E=threshold-20 MeV; measured residuals production σ(E). 232Pa, 238,236Np(n, F), E < 100 keV; measured fission σ(E). 237Np deduced resonances, fission width, 2gΓn.
doi: 10.13182/NSE96-A17926
1996KO27 Phys.Rev. C54, 1463 (1996) P.E.Koehler, R.R.Spencer, R.R.Winters, K.H.Guber, J.A.Harvey, N.W.Hill, M.S.Smith Resonance Neutron Capture and Transmission Measurements and the Stellar Neutron Capture Cross Sections of 134Ba and 136Ba NUCLEAR REACTIONS 134,136Ba(n, γ), (n, X), E=20 eV-500 keV; measured capture σ(E), transmission; deduced σ vs E; calculated astrophysical reaction rates. 135,137Ba levels deduced l, J, π, Γn, Γγ, (gΓnΓγ)/Γ. Enriched targets. R-matrix analysis.
doi: 10.1103/PhysRevC.54.1463
1995KO55 Nucl.Instrum.Methods Phys.Res. A361, 270 (1995) P.E.Koehler, J.A.Harvey, N.W.Hill Two Detectors for (n, p) and (n, α) Measurements at White Neutron Sources NUCLEAR REACTIONS 17O(n, α), E ≈ 100-2000 keV; measured yield vs E. 33S(n, α), E=10-300 keV; measured σ(E). Two new detectors at white neutron sources.
doi: 10.1016/0168-9002(95)00123-9
1995SC02 Phys.Rev. C51, 379 (1995) H.Schatz, S.Jaag, G.Linker, R.Steininger, F.Kappeler, P.E.Koehler, S.M.Graff, M.Wiescher Stellar Cross Sections for 33S(n, α)30Si, 36Cl(n, p)36S, and 36Cl(n, α)33P and the Origin of 36S NUCLEAR REACTIONS 33S(n, α), 36Cl(n, p), (n, α), E=10-260 keV; measured < σ(E) >; deduced stellar reaction rate for 33S(n, α), nucleosynthesis of 36S. Ionization chamber.
doi: 10.1103/PhysRevC.51.379
1994DA41 Proc.Intern.Conf.Nuclear Data for Science and Technology, Gatlinburg, Tennesse, 9-13 May, 1994, J.K.Dickens, Ed., American Nuclear Society, Vol.1, p.245 (1994) Y.Danon, M.S.Moore, P.E.Koehler, R.W.Lougheed, R.W.Hoff, N.W.Hill Measurement and analysis of the neutron-induced fission cross section s of 247Cm, 250Cf and 254Es NUCLEAR REACTIONS 247Cm(n, n), 247Cm(n, f), 250Cf(n, f), 254Es(n, f), E=-8.8E-4 eV-9.8 keV; measured products; deduced σ, σ(E), resonance parameters. Data were imported from EXFOR entry 13646. Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13646. 1994KO54 Nucl.Instrum.Methods Phys.Res. A350, 511 (1994) A Determination of the Energy Resolution at LANSCE NUCLEAR REACTIONS 197Au(n, γ), E ≤ 60 keV; measured σ(E); deduced white neutron source energy resolution. Data on 36Cl(n, p) included.
doi: 10.1016/0168-9002(94)91251-3
1994KO56 Proc.Intern.Conf.Nuclear Data for Science and Technology, Gatlinburg, Tennesse, 9-13 May, 1994, J.K.Dickens, Ed., American Nuclear Society, Vol.1, p.179 (1994) Measurements of (n, γ) cross sections for very small stable and radioactive samples of interest to the s- and p- process NUCLEAR REACTIONS 191Ir(n, γ), 193Ir(n, γ), E=1-37.5 keV; measured products, 192Ir, Eγ, Iγ; deduced σ, σ(E). Data were imported from EXFOR entry 14027. Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14027. 1993KO13 Phys.Rev. C47, 2107 (1993) P.E.Koehler, S.M.Graff, H.A.O'Brien, Yu.M.Gledenov, Yu.P.Popov 36Cl(n, p)36S Cross Section from 25 meV to 800 keV and the Nucleosynthesis of the Rare Isotope 36S NUCLEAR REACTIONS 36Cl(n, p), E=thermal-800 keV; measured σ(E); deduced astrophysical reaction rate. 36S deduced resonances, Γ, γ-strength function. Other data input.
doi: 10.1103/PhysRevC.47.2107
1993KO18 Phys.Rev. C48, 439 (1993) 14N(n, p)14C Cross Section Near Thermal Energy NUCLEAR REACTIONS 14N(n, p), E=thermal-5 eV; measured σ(E) relative to 6Li(n, α) reaction; deduced astrophysical implications.
doi: 10.1103/PhysRevC.48.439
1993SC36 Astrophys.J. 413, 750 (1993) H.Schatz, F.Kappeler, P.E.Koehler, M.Wiescher, H.-P.Trautvetter 17O(n, α)14C: Closure of Primordial CNO Bi-Cycle ( Question ) NUCLEAR REACTIONS 17O(n, α), E=10-250 keV; measured σ(E); calculated astrophysical reaction rates, big bang model implications. Other data input.
doi: 10.1086/173042
1992BE05 Astrophys.J. 387, 258 (1992) H.Beer, M.Wiescher, F.Kappeler, J.Gorres, P.E.Koehler A Measurement of the 14C(n, γ)15C Cross Section at a Stellar Temperature of kT = 23.3 keV NUCLEAR REACTIONS 14C(n, γ), E=low; measured Eγ, Iγ; deduced capture σ at kT=23.3 keV. High resolution hyperpure Ge detector.
doi: 10.1086/171077
1992LY01 Phys.Rev. C45, 308 (1992) C.R.Lyndon, H.O.Funsten, C.F.Perdrisat, V.Punjabi, J.M.Finn, B.J.Lieb, C.E.Stronach, N.L.Fuqua, H.S.Plendl, J.R.Mackenzie, R.Nair, J.R.Comfort, R.A.Giannelli, J.J.Reidy, L.Redmond, P.E.Koehler, S.A.Wender Coincidence Analyzing-Power Measurements of the Reaction 12C(p(pol), p'γ)12C(*) Through the 15.11-MeV State NUCLEAR REACTIONS 12C(polarized p, p'γ), E=318 MeV; measured coincidence analyzing powers vs φp. Relativistic, non-relativistic DWBA.
doi: 10.1103/PhysRevC.45.308
1991KO20 Phys.Rev. C44, 1675 (1991) 35Cl(n, p)35S Cross Section from 25 meV to 100 keV NUCLEAR REACTIONS 35Cl(n, p), E=25 meV-100 keV; measured σ(E); calculated astrophysical reaction rate.
doi: 10.1103/PhysRevC.44.1675
1991KO31 Phys.Rev. C44, 2788 (1991) 17O(n, α)14C Cross Section from 25 meV to Approximately 1 MeV NUCLEAR REACTIONS 17O(n, α), E=25 meV-1 MeV; measured σ(E); calculated astrophysical reaction rate. Non standard, big-bang nucleosynthesis. Enriched targets.
doi: 10.1103/PhysRevC.44.2788
1989KO11 Phys.Rev. C39, 1655 (1989) 14N(n, p)14C Cross Section from 61 meV to 34.6 keV and Its Astrophysical Implications NUCLEAR REACTIONS 14N(n, p), E=61 meV-34.6 keV; measured σ(E); deduced reduced σ(E), astrophysical implications.
doi: 10.1103/PhysRevC.39.1655
1989KO16 Nucl.Instrum.Methods Phys.Res. B40/41, 494 (1989) Nuclear Astrophysics from Neutron Cross-Section Measurements on Radioactive Samples NUCLEAR REACTIONS 36Cl(n, p), E=low; measured yields. Preliminary data. 22Na(n, p), E=low; calculated astrophysical reaction rate.
doi: 10.1016/0168-583X(89)91029-X
1989RE01 Phys.Rev. C39, 766 (1989) D.A.Resler, H.D.Knox, P.E.Koehler, R.O.Lane, G.F.Auchampaugh Structure of 14C via Elastic and Inelastic Neutron Scattering from 13C: Measurement and R-matrix analysis NUCLEAR REACTIONS 13C(n, n), (n, n'), E=4.5-11 MeV; measured σ(θ); deduced 13C(n, α)10Be σ. 14C deduced levels, J, π, reduced widths. R-matrix analysis.
doi: 10.1103/PhysRevC.39.766
1988KO03 Phys.Rev. C37, 917 (1988) P.E.Koehler, C.D.Bowman, F.J.Steinkruger, D.C.Moody, G.M.Hale, J.W.Starner, S.A.Wender, R.C.Haight, P.W.Lisowski, W.L.Talbert 7Be(n, p)7Li Total Cross Section from 25 MeV to 13.5 keV NUCLEAR REACTIONS 7Be(n, p), E=0.025-13500 eV; measured σ. 8Be levels deduced Γp, Γn, Γ. Calculated astrophysical reaction rate. R-matrix analysis.
doi: 10.1103/PhysRevC.37.917
1988KO25 Phys.Rev. C38, 2019 (1988) 22Na(n, p)22Ne and 22Na(n, α)19F Cross Sections from 25 meV to 35 keV NUCLEAR REACTIONS 22Na(n, p), (n, α), E=thermal; measured reduced σ(E); deduced (n, p) reaction astrophysical rate. 23Na deduced resonances, J, π, widths, ratios, parameters.
doi: 10.1103/PhysRevC.38.2019
1986KO10 Nucl.Phys. A453, 429 (1986) P.E.Koehler, H.D.Knox, D.A.Resler, R.O.Lane, G.F.Auchampaugh Structure of 19O from Measurement and R-Matrix Analysis of σ(θ) for 18O(n, n)18O and 18O(n, n')18O*(1.98 MeV) NUCLEAR REACTIONS 18O(n, n), (n, n'), E=5-7.5 MeV; measured σ(θ). 19O deduced levels, J, π, reduced widths. R-matrix analysis.
doi: 10.1016/0375-9474(86)90446-X
1983KO03 Nucl.Phys. A394, 221 (1983) P.E.Koehler, H.D.Knox, D.A.Resler, R.O.Lane, D.J.Millener Structure of 12B from Measurement and R-Matrix Analysis of σ(θ) for 11B(n, n)11B and 11B(n, n')11B*(2.12 MeV), and Shell-Model Calculations NUCLEAR STRUCTURE 12B; calculated levels, spectroscopic amplitudes. Shell model. NUCLEAR REACTIONS 11B(n, n), (n, n'), E=4.8-7.6 MeV; measured σ(θ). 12B deduced levels, J, π, reduced widths. R-matrix analysis.
doi: 10.1016/0375-9474(83)90170-7
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