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NSR database version of April 26, 2024.

Search: Author = R.R.Spencer

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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, 37}Cl

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
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14090.

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
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13891.

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, 120}Sn, 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
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13909.

2000GU18      Nucl.Sci.Eng. 135, 141 (2000)

K.H.Guber, R.R.Spencer, L.C.Leal, J.A.Harvey, N.W.Hill, G.Dos Santos, R.O.Sayer, D.C.Larson

New High-Resolution Fission Cross-Section Measurements of ²³³U in the 0.4-eV to 700-keV Energy Range

NUCLEAR REACTIONS ²³³U(n, F), E < 700 keV; measured fission σ. High-resolution measurement, comparisons with previous data.

doi: 10.13182/NSE00-A2130
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13890.

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
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13742.

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
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13695.

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
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13647.

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
Citations: PlumX Metrics

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
Citations: PlumX Metrics

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
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13729.

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
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13729.

1987SP07      Nucl.Sci.Eng. 96, 318 (1987)

R.R.Spencer, J.A.Harvey, N.W.Hill, L.W.Weston

Parameters of the 1.056-eV Resonance in ²⁴⁰Pu and the 2200 m/s Neutron Total Cross Sections of ²³⁵U, ²³⁹Pu, and ²⁴⁰Pu

NUCLEAR REACTIONS ²⁴⁰Pu(n, X), E ≈ 1 eV; measured transmission ratios. ²⁴¹Pu deduced resonance parameters Γγ, Γn. ²³⁵U, ^239,240Pu(n, X), E=thermal; measured transmission; deduced total σ. Tof, ⁶Li glass scintillator.

doi: 10.13182/NSE87-A16395
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset12941.

1986GW01      Radiat.Eff. 93, 253 (1986)

R.Gwin, R.R.Spencer, R.W.Ingle

Measurement of the Energy Dependence of Prompt Fission Neutron Emission from ²³³U, ²³⁵U, and ²³⁹Pu for E = 0.0005 to 10 MeV Relative to Emission from Spontaneous Fission of ²⁵²Cf

NUCLEAR REACTIONS ^233,235U, ²³⁹Pu(n, F), E=0.0005-10 MeV; measured per fission prompt neutron average number. Fissile sample, ²⁵²Cf standard enclosed in large volume liquid scintillator loaded with Gd.

doi: 10.1080/00337578608207465
Citations: PlumX Metrics

1986GW02      Nucl.Sci.Eng. 94, 365 (1986)

R.Gwin, R.R.Spencer, R.W.Ingle

Measurements of the Energy Dependence of Prompt Neutron Emission from ²³³U, ²³⁵U, and ²³⁹Pu for E(n) = 0.0005 to 10 MeV Relative to Emission from Spontaneous Fission of ²⁵²Cf

RADIOACTIVITY ²⁵²Cf(SF); measured prompt neutron emission vs E; deduced ν-bar(E) ratio relative to ^233,235U, ²³⁹Pu(n, F) reaction.

NUCLEAR REACTIONS ^233,235U, ²³⁹Pu(n, F), E=0.0005-10 MeV; measured prompt neutron emission vs E following fission; deduced model parameters, ν-bar(E) ratio relative to ²⁵²Cf(SF). Liquid scintillator loaded with Gd, ²⁵²Cf standard.

doi: 10.13182/NSE86-A18347
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13101.

1986SP03      Radiat.Eff. 93, 245 (1986)

R.R.Spencer, J.A.Harvey, N.W.Hill, L.W.Weston

Neutron Total Cross Section of ²⁴⁰Pu below 6 eV and the Parameters of the 1.056-eV Resonance

NUCLEAR REACTIONS ²⁴⁰Pu(n, X), E ≤ 6 eV; measured transmission. ²⁴¹Pu resonance deduced Γn, Γγ, ΓnΓγ.

doi: 10.1080/00337578608207463
Citations: PlumX Metrics

1984GW01      Nucl.Sci.Eng. 88, 37 (1984)

R.Gwin, R.R.Spencer, R.W.Ingle, J.H.Todd, S.W.Scoles

Measurements of the Neutron Fission Cross Sections of ²³⁵U(E(n) = 0.01 eV to 30 keV) and ²³⁹Pu(E(n) = 0.01 to 60 eV)

NUCLEAR REACTIONS ²³⁵U(n, F), E=0.00001-30 keV; ²³⁹Pu(n, F), E=0.01-60 eV; measured fission σ(E).

doi: 10.13182/NSE84-A17138
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset12905.

1984GW02      Nucl.Sci.Eng. 87, 381 (1984)

R.Gwin, R.R.Spencer, R.W.Ingle

Measurements of the Energy Dependence of Prompt Neutron Emission from ²³³U, ²³⁵U, ²³⁹Pu, and ²⁴¹Pu for E(n) = 0.005 to 10 eV Relative to Emission from Spontaneous Fission of ²⁵²Cf

NUCLEAR REACTIONS ^233,235U, ^239,241Pu(n, F), E=0.005-10 eV; measured prompt neutron energy dependence following fission; deduced average prompt neutron number ratio relative to ²⁵²Cf(SF) decay.

doi: 10.13182/NSE84-A18506
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset12833.

1982SP04      Nucl.Sci.Eng. 80, 603 (1982)

R.R.Spencer, R.Gwin, R.Ingle

A Measurement of the Average Number of Prompt Neutrons from Spontaneous Fission of Californium-252

RADIOACTIVITY, Fission ²⁵²Cf(SF); measured prompt neutron number. Liquid scintillator detector, high precision.

doi: 10.13182/NSE82-A18973
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset10954.

1979BE18      Nucl.Sci.Eng. 70, 98 (1979)

H.Beer, R.R.Spencer

The Total Neutron Cross Section of Boron-10 between 90 and 420 keV

NUCLEAR REACTIONS ¹⁰B(n, X), E=90-420 keV; measured σ(E). ¹¹B deduced S-wave resonance. R-matrix analysis. Thick target.

doi: 10.13182/NSE79-A18932
Citations: PlumX Metrics

1978BE04      Z.Phys. A284, 173 (1978)

H.Beer, R.R.Spencer, F.Kappeler

Measurement of Partial Radiation Widths of High Energy Transitions from keV Capture Resonances in ⁵⁶Fe and ^58,60Ni

NUCLEAR REACTIONS ⁵⁶Fe, ^58,60Ni(n, γ), E=7-70 keV; measured σ(Eγ). ⁵⁷Fe, ^59,61Ni deduced resonances, partial radiation Γ, M1 strength.

doi: 10.1007/BF01411325
Citations: PlumX Metrics

1976SP13      Nucl.Sci.Eng. 61, 346 (1976)

R.R.Spencer, R.L.Macklin

Neutron Capture Cross Section of Cobalt-59 in the Energy Range 2.5 to 1000 keV

NUCLEAR REACTIONS ⁵⁹Co(n, γ), E ≤ 1 MeV; measured σ(E). ⁶⁰Co deduced resonances, Γγ.

doi: 10.13182/NSE76-A26920
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset10543.

1976SP14      Nucl.Sci.Eng. 60, 390 (1976)

R.R.Spencer, H.Beer

Measurement of Neutron Radiative Capture in Cobalt-59

NUCLEAR REACTIONS ⁵⁹Co(n, γ), E=6-200 keV; measured σ(E, Eγ). ⁶⁰Co deduced resonances, Γn, Γγ.

doi: 10.13182/NSE76-A26900
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20555.

1975BE07      Nucl.Phys. A240, 29 (1975)

H.Beer, R.R.Spencer

keV Neutron Radiative Capture and Total Cross Section of ^50,52,53Cr, ^54,57Fe, and ^62,64Ni

NUCLEAR REACTIONS ^50,52,53Cr, ^54,57Fe, ^62,64Ni(n, γ), E=5-200 keV; ^50,52Cr, ⁵⁴Fe, ^62,64Ni(n, t), E=10-300 keV; measured σ(E, Eγ), σ(E, Et). ^51,53,54Cr, ^55,58Fe, ^63,65Ni deduced resonances, J, L, n-width, γ-width. Enriched targets.

doi: 10.1016/0375-9474(75)90435-2
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20374.

1974BE81      Astron.Astrophys. 37, 197 (1974)

H.Beer, R.R.Spencer, A.Ernst

The s-Process near the Iron Seed - Some Improved Capture Cross Sections

NUCLEAR REACTIONS ^50,52,53Cr, ^54,56,57Fe, ⁵⁹Co, ^{58,60,61,62,64}Ni(n, γ), E=5-75 keV; measured reaction products, Eγ, Iγ; deduced σ, Maxwellian-averaged σ, ⁶²Ni neutron resonance parameters.

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20374.

1969FA01      Nucl.Phys. A123, 616 (1969)

K.T.Faler, R.R.Spencer, R.A.Harlan

Excited States in ¹⁷⁸Hf from Resonance Neutron-Capture Gamma-Ray Studies

NUCLEAR REACTIONS ¹⁷⁷Hf(n, γ), E=0.06-8.8 eV; measured Eγ, γγ-coin, resonance capture; deduced Q. ¹⁷⁸Hf deduced levels. Enriched target, Ge(Li) detector.

doi: 10.1016/0375-9474(69)91009-4
Citations: PlumX Metrics

1968FA07      Phys.Rev. 175, 1495 (1968)

K.T.Faler, R.R.Spencer, R.A.Harlan

A Kπ = 0⁺ Band in ¹⁸⁴W

NUCLEAR STRUCTURE ¹⁸⁴W; measured not abstracted; deduced nuclear properties.

doi: 10.1103/PhysRev.175.1495
Citations: PlumX Metrics

1967SP03      Phys.Rev. 155, 1368 (1967)

R.R.Spencer, K.T.Faler

Neutron-Capture Gamma-Ray Studies in Isotopes of Tungsten

NUCLEAR STRUCTURE ¹⁸⁷W, ¹⁸⁴W, ¹⁸³W; measured not abstracted; deduced nuclear properties.

doi: 10.1103/PhysRev.155.1368
Citations: PlumX Metrics

1966FA11      Bull.Am.Phys.Soc. 11, No.3, 336, DB14 (1966)

K.T.Faler, R.R.Spencer, D.R.Dixon

Thermal and Resonance Neutron-Capture Gamma Rays in W-184

NUCLEAR STRUCTURE ¹⁸⁴W; measured not abstracted; deduced nuclear properties.

1960SP08      Nuclear Phys. 21, 310 (1960)

R.R.Spencer, G.C.Phillips, T.E.Young

Energy Levels of Be⁹ and B⁹

NUCLEAR STRUCTURE ⁹B, ⁹Be; measured not abstracted; deduced nuclear properties.

doi: 10.1016/0029-5582(60)90056-0
Citations: PlumX Metrics

1959RA01      Bull.Am.Phys.Soc. 4, No.2, 96, C9 (1959)

D.A.A.S.N.Rao, T.E.Young, R.R.Spencer, E.H.Beckner, G.C.Phillips

Excited States in F¹⁸ from O¹⁶(He³, p)F¹⁸

1959SP17      Bull.Am.Phys.Soc. 4, No.2, 95, C4 (1959); Oral Report

R.R.Spencer, G.C.Phillips

Low Excited States in Be⁹ and B⁹

1959YO19      Phys.Rev.Letters 3, 535 (1959)

T.E.Young, G.C.Phillips, R.R.Spencer

Nuclear Energy Levels in C¹³, N¹³, N¹⁴, N¹⁵, O¹⁵, and F¹⁸ from He³-Induced Reactions

doi: 10.1103/PhysRevLett.3.535
Citations: PlumX Metrics

1959YO25      Phys.Rev. 116, 962 (1959)

T.E.Young, G.C.Phillips, R.R.Spencer, D.A.A.S.N.Rao

Nuclear Energy Levels in C¹³, N¹³, N¹⁴, N¹⁵, O¹⁵, and F¹⁸ from He³ Induced Reactions

doi: 10.1103/PhysRev.116.962
Citations: PlumX Metrics

1957DA10      Bull.Am.Phys.Soc. 2, No.6, 304, E9 (1957)

R.H.Davis, F.W.Prosser, Jr., R.R.Spencer, T.E.Young, J.H.Johnson

Elastic Scattering of Protons from Ca Observed at 180°

1957SP90      Phys.Rev. 108, 69 (1957)

R.R.Spencer, G.C.Phillips, T.E.Young

Inelastic Scattering of Protons from Cu⁶⁵, Ni⁵⁸, Ni⁶⁰, and Ni⁶²

doi: 10.1103/PhysRev.108.69
Citations: PlumX Metrics

1957YO01      Bull.Am.Phys.Soc. 2, No.2, 104, J6 (1957)

T.E.Young, G.C.Phillips, R.R.Spencer

Energy Levels in O¹⁶, F¹⁹, and Cu⁶⁵

1957YO04      Phys.Rev. 108, 72 (1957)

T.E.Young, G.C.Phillips, R.R.Spencer

Nuclear Energy Levels in O¹⁶, O¹⁸, and F¹⁹

doi: 10.1103/PhysRev.108.72
Citations: PlumX Metrics