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NSR database version of April 27, 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 E_n=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 T_1/2, 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 T_1/2, 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 T_1/2. ^258mMd(EC), ^258,259Md, ²⁵⁸Fm(SF) [from ²⁵⁴Es(¹⁸O, xnyp), E=105 MeV; ²⁵⁴Es(²²Ne, xnyp), E=126 MeV]; measured decay characteristics, T_1/2.

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), T_1/2; 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 T_1/2.

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 T_1/2, (fragment)(fragment)-coin; deduced total kinetic energy, mass distribution. ²⁵⁸Md[from ²⁵⁵Es(α, n), E=26.3 MeV]; measured T_1/2. 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 T_1/2, Eα, Iα; deduced hindrance factors, α/(α+EC) ratios, lower limit T_1/2(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 T_1/2, 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.