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NSR database version of April 27, 2024.

Search: Author = S.de Barros

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2001PE04      Eur.Phys.J. A 10, 69 (2001)

R.J.Peterson, S.de Barros, H.Schechter, S.G.Mashnik, A.G.daSilva, J.C.Suita

Fission Probabilities Across the π-Nucleon Delta Resonance

NUCLEAR REACTIONS ²⁰⁹Bi, ²³⁵U(π⁺, F), E ≈ 50-250 MeV; measured σ for pion-induced fission; deduced fission probabilities, reaction mechanism features. Comparison with statistical model predictions.

doi: 10.1007/s100500170145
Citations: PlumX Metrics

2000SA08      J.Phys.(London) G26, 301 (2000)

W.M.S.Santos, S.de Barros, J.C.Suita

Cross Sections and Thermonuclear Reaction Rates for ¹⁸¹Ta(α, n)¹⁸⁴Re, ¹⁶⁹Tm(α, n)¹⁷²Lu, ¹⁹¹Ir(α, n)¹⁹⁴Au and ¹⁹⁷Au(α, n)²⁰⁰Tl

NUCLEAR REACTIONS ¹⁸¹Ta(α, n), E=14-28 MeV; measured σ. ¹⁸¹Ta, ¹⁶⁹Tm, ¹⁹¹Ir, ¹⁹⁷Au(α, n), E=12-32 MeV; calculated σ; deduced thermonuclear reaction rates. Comparison with data.

doi: 10.1088/0954-3899/26/3/308
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0090.

1997DE34      Z.Phys. A359, 35 (1997)

S.de Barros, A.G.da Silva, J.C.Suita, R.J.Peterson

Barriers for Pion-Induced Fission Near A = 208

NUCLEAR REACTIONS ¹⁹⁷Au, ^203,205Tl, ^206,207,208Pb, ²⁰⁹Bi, ²³¹Pa(π^-, F), (π⁺, F), ¹⁸¹Ta(π⁺, F), E=150 MeV; measured fission σ; deduced fission barriers, reaction mechanism features. Solid state nuclear track detectors.

doi: 10.1007/s002180050364
Citations: PlumX Metrics

1997SU17      Nucl.Sci.Eng. 126, 101 (1997)

J.C.Suita, A.G.da Silva, L.T.Auler, S.de Barros

Neutron-Induced Reaction Cross Sections Between 9 and 14 MeV

NUCLEAR REACTIONS ⁵⁸Ni, ⁵⁹Co(n, p), ⁵¹V(n, α), ⁵⁹Co(n, 2n), E=9-14 MeV; measured residuals production σ vs E, isomer ratios in ⁵⁸Ni(n, p) reaction. Hauser-Feshbach model analyses.

doi: 10.13182/NSE97-A24461
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset31498.

1995PE11      Z.Phys. A352, 181 (1995)

R.J.Peterson, S.de Barros, I.O.de Souza, M.B.Gaspar, H.A.Khan, S.Manzoor

Mass and Energy Dependence of Pion-Induced Fission

NUCLEAR REACTIONS Fe, Cu, ⁹³Nb, Ag, Cd(π⁺, F), E=80, 100 MeV; measured binary, ternary fission σ; deduced fission probability. Data on other nuclei, other (π^-, F) reactions analyzed.

doi: 10.1007/BF01298906
Citations: PlumX Metrics

1992DE22      Nucl.Phys. A542, 511 (1992)

S.de Barros, I.O.de Souza, M.B.Gaspar, R.J.Peterson

Pion-Induced Fission of Actinide Targets

NUCLEAR REACTIONS ²⁰⁹Bi, ²³¹Pa, ^233,234,235U, ²³⁷Np, ^241,242Pu(π⁺, F), (π^-, F), E=131, 138 MeV; measured fission σ.

doi: 10.1016/0375-9474(92)90255-I
Citations: PlumX Metrics

1986DE04      Z.Phys. A323, 101 (1986)

S.de Barros, S.D.de Magalhaes, H.Wolf, J.Barreto, J.Eichler, N.Lisbona, I.O.de Souza, D.M.Vianna

Excitation Function and Half-Life for the Fission Isomer ^240mPu from the ²³⁸U(α, 2n)^240mPu Reaction

RADIOACTIVITY ^240mPu(SF) [from ²³⁸U(α, 2n), E=20.1-27.3 MeV]; measured T_1/2.

NUCLEAR REACTIONS, ICPND ²³⁸U(α, 2n), E=20.1-27.3 MeV; measured residual fission isomer production σ(E). ^240mPu deduced delayed fission σ, isomeric σ ratio.

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0691.

1985EI02      Phys.Rev. A32, 789 (1985)

J.Eichler, S.de Barros

Coherent Scattering of 59.54-keV γ Rays by Al, Cu, Zn, Cd, and Pb

ATOMIC PHYSICS ²⁷Al, Cu, Zn, Cd, Pb(γ, γ), E=59.54 keV; measured coherent σ(θ). Second-order perturbation theory.

doi: 10.1103/PhysRevA.32.789
Citations: PlumX Metrics

1982EI02      Z.Naturforsch., 37a, 1124 (1982)

J.Eichler, S.de Barros, A.M.Goncalves

Compton Cross Section of 662 keV Photons from the K-Shell of Co, Cu, Ge, , Nb, Mo and Ag

ATOMIC PHYSICS Co, Cu, Ge, Nb, Mo, Ag(γ, X), E=662 keV; measured I(K X-ray); deduced photoelectric, Compton σ(total).

1981DE23      Z.Naturforsch. 36a, 595 (1981)

S.de Barros, J.Eichler, O.Goncalves, M.Gaspar

Experiments on Rayleigh Scattering of 145 keV and 317 keV and Photons

ATOMIC PHYSICS Pb, W, Sn, Cd, Ag, Mo, Cu(γ, γ), E=145, 317 keV; measured σ(θ). Dirac-Hartree-Fock-Slater form factor calculations, Rayleigh scattering.

1981DE30      Phys.Rev. C24, 1765 (1981)

S.de Barros, J.Eichler, M.Gaspar, O.Goncalves

Rayleigh Scattering of 468 keV Photons by Different Atoms

ATOMIC PHYSICS Pb, W, Sn, Cd, Ag, Mo, Cu(γ, γ), E=468 keV; measured σ(θ). Rayleigh scattering, Dirac-Hartree-Fock-Slater wave functions.

doi: 10.1103/PhysRevC.24.1765
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1980DE16      Phys.Rev. C22, 332 (1980)

S.de Barros, O.Goncalves, M.Gaspar, J.R.Moreira

Elastic Scattering of 412, 468, and 662 keV γ Rays

NUCLEAR REACTIONS U, Pt, W, Ba, Cd, Ag(γ, γ), E=412, 468, 662 keV [from ¹⁹⁸Au, ¹³⁷Cs, ¹⁹²Ir]; measured σ(Eγ, θ); deduced Rayleigh amplitudes. Dirac-Hartree-Fock-Slater form factor.

doi: 10.1103/PhysRevC.22.332
Citations: PlumX Metrics

1974AL25      Z.Naturforsch. 29a, 1917 (1974)

S.C.Alves, S.de Barros, A.Goncalves

Energy Levels of Pt¹⁹⁷

RADIOACTIVITY ¹⁹⁷Ir; measured Eγ, Iγ; deduced log ft lower limits. ¹⁹⁷Pt deduced levels, J, π.

1974CA15      Z.Naturforsch. 29a, 702 (1974)

L.F.Canto, S.de Barros

Energy Levels of ⁵³Mn from the β-Decay of ⁵³Fe

RADIOACTIVITY ⁵³Fe; measured Eγ, Iγ. ⁵³Mn deduced levels, log ft, J, π.

1974DE10      Phys.Lett. 49B, 113 (1974)

S.De Barros, M.J.Bechara, T.Borello-Lewin, V.Paar

Spectroscopic Factors of Negative-Parity Multiplet States in Odd Sn Isotopes

NUCLEAR STRUCTURE ^{113,115,117,119,121,123,125}Sn; calculated S.

doi: 10.1016/0370-2693(74)90485-7
Citations: PlumX Metrics

1970DE34      Z.Naturforsch. 25a, 1250 (1970)

S.de Barros, P.R.Maurenzig, G.Baptista, L.F.Canto, A.G.de Pinho, J.M.F.Jeronymo

Decay Schemes of Mo⁹¹ and Mo⁹¹m

RADIOACTIVITY ^91,91mMo; measured Eγ, Iγ; deduced log ft. ⁹¹Nb deduced levels.

1969AL09      Nucl.Phys. A134, 118 (1969)

R.N.Alves, S.de Barros, P.L.Chevillon, J.Julien, J.Morgenstern, C.Samour

Determination du Spin et des Parametres des Resonances pour Cl+n, Cu+n, Ba+n et Nd+n

NUCLEAR REACTIONS Cl(n, X), E < 115 keV; Cu(n, X), E < 32 keV; Ba(n, X), E < 1300 eV; Nd(n, X), E < 740 eV; measured σ(nt)(E). ^36,38Cl, ^64,66Cu, ^{131,133,135,136,137,138}Ba, ^{144,145,146,149,151}Nd deduced resonances, resonance parameters, strength function.

doi: 10.1016/0375-9474(69)90688-5
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20688.

1969DE09      Nucl.Phys. A131, 305 (1969)

S.de Barros, V.D.Huynh, J.Julien, J.Morgenstern, C.Samour

Determination du Spin et des Parametres des Resonances pour ^107,109Ag+n, ¹⁶⁰Tm+n, Pt+n de 4 eV a 830 eV

NUCLEAR REACTIONS ^107,109Ag, ¹⁶⁹Tm, Pt(n, X), E=4-830 eV; measured σ(nT)(E). ^108,110Ag, ¹⁷⁰Tm, ^{193,195,196,197,199}Pt deduced resonances, resonance parameters, J. Time-of-flight method.

doi: 10.1016/0375-9474(69)90538-7
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20685.

1969DO11      Z.Naturforsch. 24a, 1196 (1969)

L.C.M.do Amaral, C.F.de Barros Leite, J.M.F.Jeronymo, A.G.de Pinho, D.Russo, S.de Barros

Decay Scheme of ¹¹⁸In (4.45 min)

RADIOACTIVITY ¹¹⁸In [from ¹¹⁹Sn(γ, p)]; measured T_1/2, Eγ, Iγ. Deduced log ft. ¹¹⁸Sn deduced levels, Ge(Li) detector.

1969JU01      Nucl.Phys. A132, 129 (1969); UCRL-TRANS-10397

J.Julien, R.Alves, S.de Barros, V.D.Huynh, J.Morgenstern, C.Samour

Variations de la Largeur Radiative Totale Gamma γ en Fonction du Nombre de Masse A et de la Valeur du Spin J = I(1/2)

NUCLEAR REACTIONS Fe, Cu, Zn, Ga, As, Se, Br, Zr, Nb, Mo, Ag, Cd, Sn, Ba, La, Pr, Nd, Gd, Tb, Tm, W, Pt, Au, Hg(n, X), E = 4-2000 eV; measured σ(nγ). ⁵⁷Fe, ^64,66Cu, ^65,66,68Zn, ^70,72Ga, ⁷⁶As, ^75,77,78,79Se, ^80,82Br, ^92,97Zr, ⁹⁴Nb, ^96,97,98Mo, ^108,110Ag, ^{111,112,113,114}Cd, ^{113,117,118,119,120,125}Sn, ^133,135,136Ba, ¹⁴⁰La, ¹⁴²Pr, ^144,146Nd, ^156,158Gd, ¹⁶⁰Tb, ¹⁷⁰Tm, ¹⁸⁴W, ^{193,195,196,197,199}Pt, ¹⁹⁸Au, ^199,200,202Hg deduced resonances, resonance parameters, γ-width, J, level spacing D.

doi: 10.1016/0375-9474(69)90618-6
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20687.

1969SA01      Nucl.Phys. A123, 581 (1969)

C.Samour, J.Julien, R.N.Alves, S.de Barros, J.Morgenstern

Capture Radiative Partielle des Neutrons de Resonance dans le Tungstene

NUCLEAR REACTIONS W(n, γ), E=7-360 eV; measured Eγ, Iγ, σ(E; Eγ). ^{183,184,185,187}W deduced levels, J. ¹⁸⁴W deduced resonances. Ge(Li) detector.

doi: 10.1016/0375-9474(69)91006-9
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20677.

1968DA23      Notas Fis.Centro Brasil.Pesquisas Fis. 14, 226 (1968)

A.G.da Silva, R.H.Topke, S.de Barros, S.Calzavara

Search for New Transitions in the Decay of ¹⁶⁴Ho

RADIOACTIVITY ¹⁶⁴Ho[from ¹⁶⁵Ho(γ, n)]; measured Eγ, Iγ, T_1/2; deduced log ft.

1967MO16      Nucl.Phys. A102, 602 (1967); Erratum Nucl.Phys. A149, 684 (1970)

J.Morgenstern, S.De Barros, A.Bloch, P.L.Chevillon, V.D.Huynh, H.E.Jackson, J.Julien, C.Lopata, C.Samour

Analyse des Parametres de Resonances du Cobalt et du Manganese, Induites par des Neutrons d'Energie Inferieure a 120 keV

NUCLEAR REACTIONS ⁵⁹Co(n, X), E < 500 keV; ⁵⁵Mn(n, X), E < 80 keV; measured σ(E); deduced potential scattering length. ⁶⁰Co, ⁵⁶Mn deduced resonance parameters, strength functions.

doi: 10.1016/0375-9474(67)90398-3
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20683.

1966JU01      Nucl.Phys. 76, 391(1966)

J.Julien, S.De Barros, G.Bianchi, C.Corge, V.D.Huynh, G.Le Poittevin, J.Morgenstern, F.Netter, C.Samour, R.Vastel

Determination du Spin et des Parametres des Resonances pour ¹⁹⁷Au+n de 10 eV a 1000 eV

NUCLEAR REACTIONS ¹⁹⁷Au(n, γ), E = 10-1000 eV; measured σ(ns), σ(nγ). ¹⁹⁸Au deduced resonances, resonance parameters, J.

doi: 10.1016/0029-5582(66)90034-4
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20686.

1966MO26      Proc.Intern.Conf.Study of Nucl.Struct.with Neutrons, Antwerp, Belgium (1965), M.N.De Mevergnies, P.Van Assche, J.Vervier, Eds., North-Holland Publishing Co., Amsterdam, p.531 (1966); EANDC-50-S, Paper 86

J.Morgenstern, S.De Barros, G.Bianchi, C.Corge, V.Huynh, J.Julien, G.Le poittevin, F.Netter, C.Samour

Neutron Total Cross Section Measurements on V, Co, Mn

1966MO27      Proc.Intern.Conf.Study of Nucl.Struct.with Neutrons, Antwerp, Belgium (1965), M.N.De Mevergnies, P.Van Assche, J.Vervier, Eds., North-Holland Publishing Co., Amsterdam, p.531 (1966); EANDC-50-S, Paper 87

J.Morgenstern, S.De Barros, G.Bianchi, C.Corge, P.L.Chevillon, V.Huynh, J.Julien, G.Le Poittevin, F.Netter, C.Samour

Strength Function Values from A=50 up to A=201

1965HU12      Nucl.Instr.Methods 36, 29 (1965)

V.D.Huynh, J.P.Meinadier, S.De Barros, J.Julien, G.Le Poittevin, J.Morgenstern, F.Netter, C.Samour

Traitement sur Ordinateur des Spectres de Rayons γ de Capture Obtenus a l'Aide d'un Cristal Central Associe a un Cristal Annulaire

NUCLEAR STRUCTURE ⁶⁴Cu; measured not abstracted; deduced nuclear properties.

doi: 10.1016/0029-554X(65)90402-7
Citations: PlumX Metrics

1965JU02      Nucl.Phys. 66, 433 (1965)

J.Julien, S.De Barros, V.D.Huynh, G.Le Poittevin, J.Morgenstern, F.Netter, C.Samour

Variation de la Fonction Densite (Strength Function) avec la Valeur du Spin

doi: 10.1016/0029-5582(65)90191-4
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20683.

1965LE20      Nucl.Phys. 70, 497(1965)

G.Le Poittevin, S.De Barros, V.D.Huynh, J.Julien, J.Morgenstern, F.Netter, C.Samour

Determination des Fonctions Densite (Strength Functions) S₀ et S₁ dans Nb par Identification de la Nature des Resonances de Neutrons

NUCLEAR REACTIONS ⁹³Nb(n, X), E = 30-4000 eV; measured σ(E), γ. ⁹⁴Nb deduced levels, L, J, resonance parameters g level-width n, level-width, γ-width, average width/spacing.

doi: 10.1016/0029-5582(65)90450-5
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset20682.