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NSR database version of April 27, 2024.

Search: Author = R.J.Dougan

Found 21 matches.

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1995SC53      Radiochim.Acta 68, 7 (1995)

M.Schadel, E.Jager, W.Bruchle, K.Summerer, E.K.Hulet, J.F.Wild, R.W.Lougheed, R.J.Dougan, K.J.Moody

Radiochemical Search for Neutron-Rich Isotopes of Nielsbohrium in the ¹⁶O + ²⁵⁴Es Reaction

NUCLEAR REACTIONS, ICPND ²⁵⁴Es(¹⁶O, xn)E=113, 116 MeV; measured α-spectra following residual decay; deduced production σ for ^265,266,267107 vs assumed T_1/2. On-line gas chromatography.

1994WI17      J.Alloys and Compounds 213/214, 86 (1994)

J.F.Wild, E.K.Hulet, R.W.Lougheed, K.J.Moody, B.B.Bandong, R.J.Dougan, A.Veeck

Spontaneous fission properties of ^{252, 254}No and ^{256, 258}[104] and the disappearance of the outer fission barrier

RADIOACTIVITY ^252,254No(SF) [from ^244,246Cm(¹²C, 4n)]; ^256,258Rf(SF) [from ²⁴⁴Cm(¹⁶O, 4n) and ²⁴⁹Cf(¹²C, 3n)]; measured fission fragment kinetic energy and mass distributions; deduced fission barrier features.

doi: 10.1016/0925-8388(94)90885-0
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14054.

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.

1990MO01      Phys.Rev. C41, 152 (1990)

K.J.Moody, R.W.Lougheed, R.J.Dougan, E.K.Hulet, J.F.Wild, K.Summerer, R.L.Hahn, J.van Aarle, G.R.Bethune

Actinide Cross Sections from the Reaction of ¹³C with ^254gEs

NUCLEAR REACTIONS ²⁵⁴Es(¹³C, X), E=72 MeV; measured production σ for ^252-256Es, ^253-257Fm, ^255-260Md, ^256,257,259No, ^259-262Lr, ²⁶¹104, ²⁶²105; deduced reaction σ, production mechanism.

doi: 10.1103/PhysRevC.41.152
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC0898.

1990WI01      Phys.Rev. C41, 640 (1990)

J.F.Wild, J.van Aarle, W.Westmeier, R.W.Lougheed, E.K.Hulet, K.J.Moody, R.J.Dougan, E.-A.Koop, R.E.Glaser, R.Brandt, P.Patzelt

Prompt Neutron Emission from the Spontaneous Fission of ²⁶⁰Md

NUCLEAR REACTIONS ²⁵⁴Es(²²Ne, X), E=126 MeV; measured (neutron)(fragment)-coin; deduced ²⁶⁰Md production evidence.

RADIOACTIVITY ²⁶⁰Md(SF) [from ²⁵⁴Es(²²Ne, X), E=126 MeV]; measured fission neutron multiplicity distribution, emission probabilities.

doi: 10.1103/PhysRevC.41.640
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13186.

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.

1986BL10      Radiat.Eff. 92, 305 (1986)

R.C.Block, D.R.Harris, H.T.Maguire, Jr., C.R.S.Stopa, R.E.Slovacek, J.W.T.Dabbs, R.J.Dougan, R.W.Hoff, R.W.Lougheed

Intermediate Structure in the Fission Cross Sections of the Even Curium Isotopes

NUCLEAR REACTIONS ^244,246,248Cm(n, F), E ≤ 100 keV; analyzed fission σ(E); deduced structure. ^245,247,249Cm deduced barrier parameter differences.

doi: 10.1080/00337578608208340
Citations: PlumX Metrics

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

1986SC10      Phys.Rev. C33, 1547 (1986)

M.Schadel, W.Bruchle, M.Brugger, H.Gaggeler, K.J.Moody, D.Schardt, K.Summerer, E.K.Hulet, A.D.Dougan, R.J.Dougan, J.H.Landrum, R.W.Lougheed, J.F.Wild, G.D.O'Kelley

Transfer Cross Sections from Reactions with ²⁵⁴Es as a Target

NUCLEAR REACTIONS, ICPND ²⁵⁴Es(¹⁶O, X), E=98 MeV; measured production σ for No, Lr isotopes. ²⁵⁴Es(¹⁸O, X)²⁶⁰Md/²⁶¹Md/²⁶⁰No/²⁶¹No/²⁶²No/²⁶¹Lr/²⁶²Lr/²⁶³Lr, E=98 MeV; ²⁵⁴Es(²²Ne, X)²⁶⁰Md/²⁶¹Md/²⁶⁰No/²⁶¹No/²⁶²No/²⁶¹Lr/²⁶²Lr/²⁶³Lr, E=127 MeV; measured residual production σ. Activation technique.

doi: 10.1103/PhysRevC.33.1547
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0358.

1985LO13      Phys.Rev. C32, 1760 (1985)

R.W.Lougheed, J.H.Landrum, E.K.Hulet, J.F.Wild, R.J.Dougan, A.D.Dougan, H.Gaggeler, M.Schadel, K.J.Moody, K.E.Gregorich, G.T.Seaborg

Search for Superheavy Elements using the ⁴⁸Ca + ^254gEs Reaction

NUCLEAR REACTIONS ²⁵⁴Es(⁴⁸Ca, X)²¹¹At/²⁰⁹At/²¹²Pb, E=240, 249 MeV; measured residuals, superheavy production σ. Aqueous, gas phase separation technique.

doi: 10.1103/PhysRevC.32.1760
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2550.

1985MA14      Nucl.Sci.Eng. 89, 293 (1985); see 1985Ma28

H.T.Maguire, Jr., C.R.S.Stopa, R.C.Block, D.R.Harris, R.E.Slovacek, J.W.T.Dabbs, R.J.Dougan, R.W.Hoff, R.W.Lougheed

Neutron-Induced Fission Cross-Section Measurements of ²⁴⁴Cm, ²⁴⁶Cm, and ²⁴⁸Cm

doi: 10.13182/NSE85-A18621
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset12788.

1985MA28      Nucl.Sci.Eng. 89, 293 (1985)

H.T.Maguire, Jr., C.R.S.Stopa, R.C.Block, D.R.Harris, R.E.Slovacek, J.W.T.Dabbs, R.J.Dougan, R.W.Hoff, R.W.Lougheed

Neutron-Induced Fission Cross-Section Measurements of ²⁴⁴Cm, ²⁴⁶Cm, and ²⁴⁸Cm

NUCLEAR REACTIONS ^244,246,248Cm(n, F), E=0.1 eV-80 keV; measured fission σ(E). ^245,247,249Cm deduced intermediate structure evidence.

doi: 10.13182/NSE85-A18621
Citations: PlumX Metrics

1985WI10      Phys.Rev. C32, 488 (1985)

J.F.Wild, P.A.Baisden, R.J.Dougan, E.K.Hulet, R.W.Lougheed, J.H.Landrum

Light-Charged-Particle Emission in the Spontaneous Fission of ²⁵⁰Cf, ²⁵⁶Fm, and ²⁵⁷Fm

RADIOACTIVITY ²⁵⁰Cf, ²⁵⁶Fm, ²⁵⁷Fm(SF); measured σ(Eα) following fission; deduced α-, t-, p-, total light particle emission probabilities.

doi: 10.1103/PhysRevC.32.488
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset12814.

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.

1983DA06      Nucl.Sci.Eng. 84, 1 (1983); Corrigendum Nucl.Sci.Eng. 85, 81 (1983)

J.W.T.Dabbs, C.E.Bemis, Jr., S.Raman, R.J.Dougan, R.W.Hoff

Measurement of the ^242mAm Neutron Fission Cross Section

NUCLEAR REACTIONS ^242mAm(n, F), E=0.000005-20 MeV; measured fission σ(E); deduced fission resonance integral. Tof.

doi: 10.13182/NSE83-A17453
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset12808.

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.

1982WI08      Phys.Rev. C26, 1531 (1982)

J.F.Wild, E.K.Hulet, R.W.Lougheed, P.A.Baisden, J.H.Landrum, R.J.Dougan, M.G.Mustafa

Unusually Low Fragment Energies in the Symmetric Fission of ²⁵⁹Md

RADIOACTIVITY ²⁵⁹No(EC), (α) [from ²⁴⁸Cm(¹⁸O, 3nα)]; measured α-decay T_1/2. ²⁵⁹Md(SF) [from ²⁵⁹No(EC-decay)]; measured T_1/2, (fragment)(fragment)-coin; deduced SF-decay upper limit, fragment mass, total kinetic energy distributions.

doi: 10.1103/PhysRevC.26.1531
Citations: PlumX Metrics

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.

1978IL01      Phys.Lett. 78B, 209 (1978)

J.D.Illige, E.K.Hulet, J.M.Nitschke, R.J.Dougan, R.W.Lougheed, A.Ghiorso, J.H.Landrum

Search for Volatile Superheavy Elements from the Reaction ²⁴⁸Cm + ⁴⁸Ca

NUCLEAR REACTIONS ²⁴⁸Cm(⁴⁸Ca, X), E=267 MeV; measured σ for α-, SF-decay fragments; deduced no volatile superheavy elements with T_1/2=1 sec-4.17 days.

doi: 10.1016/0370-2693(78)90007-2
Citations: PlumX Metrics