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NSR database version of May 24, 2024.

Search: Author = R.J.Dupzyk

Found 18 matches.

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2002LO18      Radiochim.Acta 90, 833 (2002)

R.W.Lougheed, W.Webster, M.N.Namboodiri, D.R.Nethaway, K.J.Moody, J.H.Landrum, R.W.Hoff, R.J.Dupzyk, J.H.McQuaid, R.Gunnink, E.D.Watkins

239Pu and 241Am (n, 2n) cross-section measurements near En=14 MeV

NUCLEAR REACTIONS 239Pu, 241Am(n, 2n), E=13.7-15.1 MeV; measured σ. Activation technique.

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13883.


1993MO18      Nucl.Phys. A563, 21 (1993)

K.J.Moody, R.W.Lougheed, J.F.Wild, R.J.Dougan, E.K.Hulet, R.W.Hoff, C.M.Henderson, R.J.Dupzyk, R.L.Hahn, K.Summerer, G.D.O'Kelley, G.R.Bethune

Decay Properties of Heavy Mendelevium Isotopes

NUCLEAR REACTIONS, ICPND 254Es(18O, X)256Md/255Md/257Md/258Md/258mMd/259Md/260Md, E=105 MeV; 254Es(22Ne, X)256Md/255Md/257Md/258Md/258mMd/259Md/260Md, E=126 MeV; measured Eα, Iα; deduced residual nuclei production σ.

RADIOACTIVITY 256Md(EC), (α); 257Md(EC), (α), (SF); 258Md(α), (SF), (EC), (β-); 258mMd(EC), (α), (SF), (β-); 259Md(SF), (α); measured Eα, Iα, γ-spectra, SF-decay; deduced T1/2, branching ratio. 256,257,258Md deduced mass excess. 259Md deduced SF-decay hindrance factor. 252,253,254Es deduced levels, J, π, γ transitions.

doi: 10.1016/0375-9474(93)90010-U
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14283.


1990HO02      Phys.Rev. C41, 484 (1990)

R.W.Hoff, S.Drissi, J.Kern, W.Strassmann, H.G.Borner, K.Schreckenbach, G.Barreau, W.D.Ruhter, L.G.Mann, D.H.White, J.H.Landrum, R.J.Dupzyk, R.F.Casten, W.R.Kane, D.D.Warner

Nuclear Structure of 238Np from Neutron-Capture and α-Decay Measurements

NUCLEAR REACTIONS 237Np(n, γ), E=thermal, resonance; measured Eγ, Iγ, I(ce). 238Np deduced levels, J, π, γ-multipolarity, subshell ICC ratios, band structure. Other data input. Semi-empirical model calculation.

RADIOACTIVITY 242mAm(α); measured Eα, Iα, Eγ, Iγ, γγ-coin. 238Np deduced levels, J, π, γ-multipolarity, subshell ICC ratios, band structure. Other data input. Semi-empirical model calculation.

doi: 10.1103/PhysRevC.41.484
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22164.


1989HU09      Phys.Rev. C40, 770 (1989)

E.K.Hulet, J.F.Wild, R.J.Dougan, R.W.Lougheed, J.H.Landrum, A.D.Dougan, P.A.Baisden, C.M.Henderson, R.J.Dupzyk, R.L.Hahn, M.Schadel, K.Summerer, G.R.Bethune

Spontaneous Fission Properties of 258Fm, 259Md, 260Md, 258No, and 260[104]: Bimodal fission

RADIOACTIVITY 258Fm, 258No, 259,260Md, 260Rf(SF); measured fission fragment mass, kinetic energy distributions; deduced fission features.

doi: 10.1103/PhysRevC.40.770
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13191.


1986HU01      Phys.Rev.Lett. 56, 313 (1986)

E.K.Hulet, J.F.Wild, R.J.Dougan, R.W.Lougheed, J.H.Landrum, A.D.Dougan, M.Schadel, R.L.Hahn, P.A.Baisden, C.M.Henderson, R.J.Dupzyk, K.Summerer, G.R.Bethune

Bimodal Symmetric Fission Observed in the Heaviest Elements

RADIOACTIVITY 258Fm(SF); 258m,259,260Md(SF) [from 254Es(18O, X), E=105 MeV; 254Es(22Ne, X), E=16 MeV]; 258No(SF) [from 248Cm(13C, X), E=81 MeV]; 260Rf(SF) [from 249Bk(15N, X), E=81 MeV]; measured fission fragment mass, kinetic energy partitioning; deduced bimodal symmetric fission evidence.

doi: 10.1103/PhysRevLett.56.313
Citations: PlumX Metrics


1986HU05      Phys.Rev. C34, 1394 (1986)

E.K.Hulet, R.W.Lougheed, J.F.Wild, R.J.Dougan, K.J.Moody, R.L.Hahn, C.M.Henderson, R.J.Dupzyk, G.R.Bethune

Z and A Identification of 370-μs 258Fm

RADIOACTIVITY 258mFm(SF) [from 258mMd(EC-decay)]; measured fission (fragment)(X-ray) time correlation; deduced T1/2, charge, mass. Ge and Si-Au detectors.

doi: 10.1103/PhysRevC.34.1394
Citations: PlumX Metrics


1986LO16      J.Less-Common Met. 122, 461 (1986)

R.W.Lougheed, E.K.Hulet, R.J.Dougan, J.F.Wild, R.J.Dupzyk, C.M.Henderson, K.J.Moody, R.L.Hahn, K.Summerer, G.Bethune

The Discovery of 260Md and the Decay Properties of 258Fm, 258m,258gMd and 259Md

NUCLEAR REACTIONS 254Es(18O, xnyp), E=105 MeV; 254Es(22Ne, xnyp), E=126 MeV; measured Fm, Md isotope production σ.

RADIOACTIVITY 260Md(SF) [from 254Es(18O, xnyp), E=105 MeV; 254Es(22Ne, xnyp), E=126 MeV]; measured T1/2. 258mMd(EC), 258,259Md, 258Fm(SF) [from 254Es(18O, xnyp), E=105 MeV; 254Es(22Ne, xnyp), E=126 MeV]; measured decay characteristics, T1/2.

doi: 10.1016/0022-5088(86)90442-X
Citations: PlumX Metrics


1984BR10      Phys.Rev. C29, 2188 (1984)

J.C.Browne, R.M.White, R.E.Howe, J.H.Landrum, R.J.Dougan, R.J.Dupzyk

242mAm Fission Cross Section

NUCLEAR REACTIONS 242mAm(n, F), E ≈ 0.001 eV-20 MeV; measured fission σ(E). 243Am deduced resonaces, Γn, ΓF, average level spacing, s-wave strength function. Breit-Wigner single level sum analysis.

doi: 10.1103/PhysRevC.29.2188
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset10805.


1984BR14      Phys.Rev. C30, 559 (1984)

H.C.Britt, D.C.Hoffman, J.van der Plicht, J.B.Wilhelmy, E.Cheifetz, R.J.Dupzyk, R.W.Lougheed

Fission of 255,256Es, 255-257Fm, and 258Md at Moderate Excitation Energies

NUCLEAR REACTIONS, ICPND 254Es(d, pF), (t, pF), (3He, dF), (3He, pF), E=tandem; 254Es(p, F), (d, F), (t, F), E=11-17 MeV; 254Es(α, F), E=20-26 MeV; measured fission fragment yield, total kinetic energy vs mass, (fragment)(fragment)-coin. 255,256Es, 255,256,257Fm, 258Md deduced fission characteristics, potential energy surface role.

doi: 10.1103/PhysRevC.30.559
Citations: PlumX Metrics


1983HO21      Nucl.Phys. A407, 193 (1983)

R.E.Howe, R.M.White, J.C.Browne, J.H.Landrum, R.J.Dougan, R.W.Lougheed, R.J.Dupzyk

Measurement of the Prompt Fission Neutron Multiplicity from the 245Cm(n, f) and 242mAm(n, f) Reactions

NUCLEAR REACTIONS 245Cm(n, F), E=0.00005-14000 keV; 242mAm(n, F), E=14 MeV; measured prompt fission neutron multiplicity.

doi: 10.1016/0375-9474(83)90314-7
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset12851.


1981HO08      Nucl.Sci.Eng. 77, 454 (1981)

R.E.Howe, J.C.Browne, R.J.Dougan, R.J.Dupzyk, J.H.Landrum

Fission Neutron Multiplicity for the 242mAm(n, f) Reaction

NUCLEAR REACTIONS, Fission 242mAm(n, F), E=0.037-30 MeV; measured neutron multiplicity vs E. Semiempirical model. Liquid benzene scintillator, tof.

doi: 10.13182/NSE81-A18958
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset10993.


1981LI30      J.Inorg.Nucl.Chem. 43, 3071 (1981)

M.Lindner, R.J.Dupzyk, R.W.Hoff, R.J.Nagle

Lifetime of the Long-Lived Isomer of 236Np from α-, β- and Electron-Capture Decay Measurements

RADIOACTIVITY 236Np(EC), (α), (β-); measured Eγ, Iγ, Eα, Iα, γγ-coin, I(ce), T1/2; deduced relative β-, EC-, α-branching, log ft, Qβ, Q(EC). 236Pu levels deduced γ-branching, transition energy. 236U levels deduced γ-branching. Compton suppression, mass spectrometric isotope ratio measurements, 232Pa decay input.

doi: 10.1016/0022-1902(81)80064-4
Citations: PlumX Metrics


1981LO15      J.Inorg.Nucl.Chem. 43, 2239 (1981)

R.W.Lougheed, E.K.Hulet, J.F.Wild, B.J.Qualheim, J.E.Evans, R.J.Dupzyk

Two New Isotopes with N = 157: 256Es and 255Cf

RADIOACTIVITY 256Es, 255Cf [from neutron irradiation of 255Es, 254Cf]; measured β-decay T1/2.

NUCLEAR REACTIONS 255Es, 254Cf(n, γ), E=reactor; measured σ(effective); deduced evidence for 256Es, 255Cf. Enriched targets.

doi: 10.1016/0022-1902(81)80239-4
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset12723.


1980BR02      Phys.Rev. C21, 761 (1980)

H.C.Britt, E.Cheifetz, D.C.Hoffman, J.B.Wilhelmy, R.J.Dupzyk, R.W.Lougheed

Fission Barriers for 255Es, 256Es, and 255Fm

NUCLEAR REACTIONS 254Es(t, pF), (d, pF), (3He, dF), E not given; measured fission coin spectra. 255Fm, 255,256Es deduced first barrier height.

doi: 10.1103/PhysRevC.21.761
Citations: PlumX Metrics


1980HO04      Phys.Rev. C21, 972 (1980)

D.C.Hoffman, J.B.Wilhelmy, J.Weber, W.R.Daniels, E.K.Hulet, R.W.Lougheed, J.H.Landrum, J.F.Wild, R.J.Dupzyk

12.3-min 256Cf and 43-min 258Md and Systematics of the Spontaneous Fission Properties of Heavy Nuclides

RADIOACTIVITY 256Cf(SF) [from 254Cf(t, p), E=16 MeV]; measured T1/2, (fragment)(fragment)-coin; deduced total kinetic energy, mass distribution. 258Md[from 255Es(α, n), E=26.3 MeV]; measured T1/2. 258Fm (SF) [from ϵ decay of 258Md]; measured (fragment)(fragment)-coin; deduced total kinetic energy, mass distribution.

doi: 10.1103/PhysRevC.21.972
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset10923.


1971HO16      Nucl.Phys. A169, 641 (1971)

R.W.Hoff, E.K.Hulet, R.J.Dupzyk, R.W.Lougheed, J.E.Evans

Alpha Decay of 255Md, 256Md and 257Md

RADIOACTIVITY 255,256,257Md [from 253,254Es(α, xn)]; measured T1/2, Eα, Iα; deduced hindrance factors, α/(α+EC) ratios, lower limit T1/2(SF). 253Es(α, n), (α, 2n), 254Es(α, n), E = 38 MeV; measured relative σ.

doi: 10.1016/0375-9474(71)90708-1
Citations: PlumX Metrics


1968HO13      Nucl.Phys. A115, 225 (1968)

R.W.Hoff, J.E.Evans, E.K.Hulet, R.J.Dupzyk, B.J.Qualheim

Nuclear Decay Properties of 256Fm

RADIOACTIVITY 256Fm [from 253Es(α, p), 253Es(α, n)256Md EC]; measured T1/2, Eα, Iα. Reactor-produced target. Isotopically enriched 256Fm.

NUCLEAR REACTIONS 255Fm(n, γ), E = reactor spectrum; measured σ. Reactor-produced target.

doi: 10.1016/0375-9474(68)90657-X
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14279.


1968HO15      Bull.Am.Phys.Soc. 13, No.4, 604, DF6 (1968); Oral Report

R.W.Hoff, E.K.Hulet, R.J.Dupzyk, R.W.Lougheed, J.E.Evans

Alpha Decay of 255Md, 256Md, and 257Md

NUCLEAR STRUCTURE 256Md, 257Md, 255Md; measured not abstracted; deduced nuclear properties.


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