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NSR database version of May 23, 2024.

Search: Author = R.J.Silva

Found 29 matches.

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1988HO19      J.Radioanal.Nucl.Chem. 124, 135 (1988)

D.C.Hoffman, R.A.Henderson, K.E.Gregorich, D.A.Bennett, R.M.Chasteler, C.M.Gannett, H.L.Hall, D.M.Lee, M.J.Nurmia, S.Cai, R.Agarwal, A.W.Charlop, Y.Y.Chu, G.T.Seaborg, R.J.Silva

Atom-at-a-time radiochemical separations of the heaviest elements: Lawrencium chemistry

NUCLEAR REACTIONS 249Bk(18O, 3nα), E=101 MeV; measured reaction products, Eα, Iα. 260Lr; deduced σ, T1/2.

doi: 10.1007/bf02035512
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2514.


1981NI01      Nucl.Phys. A352, 138 (1981)

J.M.Nitschke, M.Fowler, A.Ghiorso, R.E.Leber, M.E.Leino, M.J.Nurmia, L.P.Somerville, K.E.Williams, E.K.Hulet, J.H.Landrum, R.W.Lougheed, J.F.Wild, C.E.Bemis, Jr., R.J.Silva, P.Eskola

Search for an 80 ms Spontaneous Fission Activity in Bombardments of 249Bk with 15N

NUCLEAR REACTIONS, Fission 249Bk(15N, X), E=78, 82, 86, 88, 100 MeV; measured σ(E), spontaneous fission T1/2. 260Rf deduced no evidence for 80 ms spontaneous fission decay.

doi: 10.1016/0375-9474(81)90564-9
Citations: PlumX Metrics


1978OT03      J.Inorg.Nucl.Chem. 40, 589 (1978)

R.J.Otto, D.J.Morrissey, D.Lee, A.Ghiorso, J.M.Nitschke, G.T.Seaborg, M.M.Fowler, R.J.Silva

A Search for Superheavy Elements with Half-Lives between a Few Minutes and Several Hundred Days, Produced in the 48Ca + 248Cm Reaction

NUCLEAR REACTIONS 248Cm(48Ca, X), E=255 MeV; measured SF activity; deduced no superheavy yield.

doi: 10.1016/0022-1902(78)80372-8
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2537.


1977BE09      Phys.Rev. C15, 705 (1977)

C.E.Bemis, Jr., R.L.Ferguson, F.Plasil, R.J.Silva, F.Pleasonton, R.L.Hahn

Fragment-Mass and Kinetic-Energy Distributions from the Spontaneous Fission of 252No

RADIOACTIVITY, Fission 252No (SF); measured fragment-fragment coin, Eα, T1/2; deduced SF branching, α/SF, pre-neutron fragment masses, total kinetic energy distribution.

doi: 10.1103/PhysRevC.15.705
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14541.


1977BE36      Phys.Rev. C16, 1146 (1977)

C.E.Bemis, Jr., P.F.Dittner, R.J.Silva, R.L.Hahn, J.R.Tarrant, L.D.Hunt, D.C.Hensley

Production, L X-Ray Identification, and Decay of the Nuclide 260105

RADIOACTIVITY 260Db [from 249Cf(15N, 4n)]; measured Eα, Iα, Eγ, Iγ, I(EC), xα-coin, xsf-coin, αα(t), T1/2; deduced SF branching, EC branching, Qα. 256Lr deduced levels, K, J, π, α-hindrance, SF hindrance. 256Lr; measured T1/2, Eα. 257,258Lr, 256No, 212At, 252,254Fm; measured Eα. Enriched target.

doi: 10.1103/PhysRevC.16.1146
Citations: PlumX Metrics


1977BE43      Phys.Rev.Lett. 39, 1246 (1977)

C.E.Bemis, Jr., R.L.Ferguson, F.Plasil, R.J.Silva, G.D.O'Kelley, M.L.Klefer, R.L.Hahn, D.C.Hensley, E.K.Hulet, R.W.Lougheed

Mass Asymmetry and Total-Kinetic-Energy Release in the Spontaneous Fission of 262[105]

RADIOACTIVITY, Fission 262Db, 256Fm(SF); measured σ(A), total kinetic energy distributions.

doi: 10.1103/PhysRevLett.39.1246
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset10832.


1977HU04      Phys.Rev.Lett. 39, 385 (1977)

E.K.Hulet, R.W.Lougheed, J.F.Wild, J.H.Landrum, P.C.Stevenson, A.Ghiorso, J.M.Nitschke, R.J.Otto, D.J.Morrissey, P.A.Baisden, B.F.Gavin, D.Lee, R.J.Silva, M.M.Fowler, G.T.Seaborg

Search for Superheavy Elements in the Bombardment of 248Cm with 48Ca

NUCLEAR REACTIONS 248Cm(48Ca, X), E=267 MeV; measured σ for formation of superheavy elements.

doi: 10.1103/PhysRevLett.39.385
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2537.


1973BE33      Phys.Rev.Lett. 31, 647 (1973)

C.E.Bemis, Jr., R.J.Silva, D.C.Hensley, O.L.Keller, Jr., J.R.Tarrant, L.D.Hunt, P.F.Dittner, R.L.Hahn, C.D.Goodman

X-Ray Identification of Element 104

RADIOACTIVITY 257Rf [from 249Cf(12C, 4n), E=73.0 MeV]; measured αx-coin, Eα. 214Ra measured T1/2. 253No levels deduced transitions, T1/2.

doi: 10.1103/PhysRevLett.31.647
Citations: PlumX Metrics


1973SI40      Nucl.Phys. A216, 97 (1973)

R.J.Silva, P.F.Dittner, M.L.Mallory, O.L.Keller, K.Eskola, P.Eskola, M.Nurmia, A.Ghiorso

The New Nuclide Nobelium-259

RADIOACTIVITY 259No; measured T1/2, Eα, Iα. Deduced α-hindrance.

NUCLEAR REACTIONS 248Cm(18O, 3nα), E=95, 80-110 MeV; measured σ(E), production σ for 259No.

doi: 10.1016/0375-9474(73)90520-4
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetB0004.


1971DI03      Phys.Rev.Lett. 26, 1037 (1971)

P.F.Dittner, C.E.Bemis, Jr., D.C.Hensley, R.J.Silva, C.D.Goodman

Identification of the Atomic Number of Nobelium by an X-Ray Technique

RADIOACTIVITY 255No; measured αX-coin, αX-delay, Eα. 251Fm level deduced T1/2.

doi: 10.1103/PhysRevLett.26.1037
Citations: PlumX Metrics


1970BE44      Inorg.Nucl.Chem.Lett. 6, 747 (1970); ORNL-4581, p.36 (1970)

C.E.Bemis, Jr., R.J.Silva, J.E.Bigelow, A.M.Friedman

Search for a Long-Lived Spontaneous Fission Isomer of 241Pu

NUCLEAR REACTIONS 240Pu(n, γ), E=thermal, > 1 MeV; 242Pu(n, 2n), E > 6.2 MeV; 238U(α, n), E=40 MeV; measured σ. 241Pu deduced no 0.3-yr SF-isomer.

doi: 10.1016/0020-1650(70)80091-5
Citations: PlumX Metrics


1970PE09      Phys.Rev. C2, 468 (1970)

C.M.Perey, R.J.Silva, J.K.Dickens, F.G.Perey

11-MeV Proton Inelastic Scattering from Even-Even Medium-Weight Nuclei

NUCLEAR REACTIONS 48Ti, 52Cr, 54,56Fe, 60,62,64Ni, 64,66,68Zn, 70,72,74,76Ge(p, p), E=11 MeV; measured nothing; analyzed σ(θ) data. 48Ti, 52Cr, 54,56Fe, 60,62,64Ni, 64,66,68Zn, 70,72,74,76Ge levels deduced β.

doi: 10.1103/PhysRevC.2.468
Citations: PlumX Metrics


1970SI03      Priv.Comm. (1970)

R.J.Silva


1970SI07      Phys.Rev. C1, 1564 (1970)

T.Sikkeland, R.J.Silva, A.Ghiorso, M.J.Nurmia

Study of Dy(40Ar, xn)Po Reactions

NUCLEAR REACTIONS Dy(40Ar, xn), E=160-280 MeV; measured σ(E) for 194,195,197,198,199,200Po production. 195,197,199Po deduced isomer ratios.

doi: 10.1103/PhysRevC.1.1564
Citations: PlumX Metrics


1970SI19      Phys.Rev. C2, 1948 (1970)

R.J.Silva, R.L.Hahn, K.S.Toth, M.L.Mallory, C.E.Bemis, Jr., P.F.Dittner, O.L.Keller

New Isotopes 241Cf and 240Cf

RADIOACTIVITY 240,241Cf; measured T1/2, Eα, Iα. 242Cf; measured Eα.

NUCLEAR REACTIONS 233,234,235U(12C, X), E=60-90 MeV; measured σ(E) for 240,241,242Cf production.

doi: 10.1103/PhysRevC.2.1948
Citations: PlumX Metrics


1968CH03      Nucl.Phys. A107, 645 (1968)

A.Chetham-Strode, Jr., R.J.Silva, J.R.Tarrant, I.R.Williams

The Decay of 251Cf

RADIOACTIVITY 251Cf; measured Eα, Iα, Eγ, Iγ, αγ-delay. 247Cm deduced levels, J, π, T1/2. Si(Au), NaI(Tl), Ge(Li) detectors.

doi: 10.1016/0375-9474(68)90791-4
Citations: PlumX Metrics


1968PE20      Phys.Rev. 175, 1460 (1968)

C.M.Perey, F.G.Perey, J.K.Dickens, R.J.Silva

11-MeV Proton Optical-Model Analysis

NUCLEAR REACTIONS 48Ti, 51V, 52Cr, 54,56Fe, 59Co, 60,62,64Ni, 63,65Cu, 64,66,68Zn(p, p), E=11 MeV; measured σ(θ); deduced model parameters. Optical model.

doi: 10.1103/PhysRev.175.1460
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2165.


1967DI03      ORNL-4182 (1967)

J.K.Dickens, F.G.Perey, R.J.Silva

Elastic and Inelastic Scattering of 11.0 MeV Protons from 48Ti, 51V, 52Cr, 54Fe, 56Fe, 59Co, 60Ni, 62Ni, 63Cu, 65Cu, 64Zn, 66Zn, and 68Zn: Tabulation of Differential Cross-Sections

NUCLEAR STRUCTURE 68Zn, 63Cu, 66Zn, 64Zn, 64Ni, 62Ni, 65Cu, 48Ti, 60Ni, 59Co, 52Cr, 52V, 54Fe, 56Fe; measured not abstracted; deduced nuclear properties.

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2165.


1966DI01      Phys.Lett. 21, 657 (1966)

J.K.Dickens, E.Eichler, R.J.Silva, I.R.Williams

Level Structure of 92Mo

NUCLEAR STRUCTURE 92Mo; measured not abstracted; deduced nuclear properties.

doi: 10.1016/0031-9163(66)90114-4
Citations: PlumX Metrics


1966SI03      Bull.Am.Phys.Soc. 11, No.3, 408, KB9 (1966); and Priv.Comm.

R.J.Silva, A.Chetham-Strode, Jr., J.R.Tarrant, I.R.Williams

Alpha Decay of 251Cf

NUCLEAR STRUCTURE 251Cf; measured not abstracted; deduced nuclear properties.


1965DI11      ORNL-3851 (1965)

J.K.Dickens, R.J.Silva

Elastic and Inelastic Scattering of 12.0-MeV Protons from 62Ni, 63Cu, and 64Zn: Tabulated Differential Cross Sections

NUCLEAR STRUCTURE 63Cu, 64Zn, 62Ni; measured not abstracted; deduced nuclear properties.

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2175.


1965DI12      ORNL-3858, Vol.1, p.3 (1965)

J.K.Dickens, F.G.Perey, R.J.Silva

Level Structure of 64Zn

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


1964SI18      Phys.Rev. 136, B618 (1964)

R.J.Silva, G.E.Gordon

Nuclear Levels of Cd115 and Cd117 from (d, p) Reaction Studies

NUCLEAR STRUCTURE 117Cd, 115Cd; measured not abstracted; deduced nuclear properties.

doi: 10.1103/PhysRev.136.B618
Citations: PlumX Metrics


1963DI11      Phys.Lett. 6, 53 (1963)

J.K.Dickens, F.G.Perey, R.J.Silva, T.Tamura

Proton Excitation of Two-Phonon Levels

NUCLEAR STRUCTURE 64Ni, 62Ni; measured not abstracted; deduced nuclear properties.

doi: 10.1016/0031-9163(63)90219-1
Citations: PlumX Metrics


1963DI14      Conf.Compd. Nucl.States, Gatlinburg, Tenn. p.38, CB6 (1963)

J.K.Dickens, F.G.Perey, R.J.Silva

Fluctuations in the Excitation Function for Elastic and Inelastic Scattering of Protons from Ni62

NUCLEAR STRUCTURE 62Ni; measured not abstracted; deduced nuclear properties.


1963DI15      Phys.Rev. 132, 1190 (1963)

J.K.Dickens, F.G.Perey, R.J.Silva

Level Structure of Ni64

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

doi: 10.1103/PhysRev.132.1190
Citations: PlumX Metrics


1963DI18      WASH-1044, p.66 (1963)

J.K.Dickens, F.G.Perey, R.J.Silva

Inelastic Scattering of 11 MeV Protons from Medium Weight Nuclei

NUCLEAR STRUCTURE 70Ge, 76Ge, 72Ge, 74Ge; measured not abstracted; deduced nuclear properties.


1963PE06      Phys.Letters 4, 25 (1963)

F.Perey, R.J.Silva, G.R.Satchler

Excited-Core Model of Odd-A Nuclei and the Cu63(p, p') Reaction

NUCLEAR STRUCTURE 63Cu; measured not abstracted; deduced nuclear properties.

doi: 10.1016/0031-9163(63)90571-7
Citations: PlumX Metrics


1962SI02      Bull.Am.Phys.Soc. 7, No.4, 315, MB5 (1962); Priv. Comm. (April 1962)

R.J.Silva, E.Eichler

Level Structure of Ge71, Ge73, Ge75, and Ge77 from the (d, p) Reaction


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