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Search: Author = E.K.Hulet

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1995LA20      Phys.Rev.Lett. 75, 1903 (1995)

Yu.A.Lazarev, Yu.V.Lobanov, Yu.Ts.Oganessian, Yu.S.Tsyganov, V.K.Utyonkov, F.Sh.Abdullin, S.Iliev, A.N.Polyakov, J.Rigol, I.V.Shirokovsky, V.G.Subbotin, A.M.Sukhov, G.V.Buklanov, B.N.Gikal, V.B.Kutner, A.N.Mezentsev, I.M.Sedykh, D.V.Vakatov, R.W.Lougheed, J.F.Wild, K.J.Moody, E.K.Hulet

New Nuclide ²⁶⁷108 Produced by the ²³⁸U + ³⁴S Reaction

NUCLEAR REACTIONS, ICPND ²³⁸U(³⁴S, X)²⁶⁷Hs, E=186 MeV; measured Eα, Iα; deduced residual production σ.

RADIOACTIVITY ²⁶⁷Hs(α) [from ²³⁸U(³⁴S, X), E=186 MeV]; measured Eα, Iα, T_1/2.

doi: 10.1103/PhysRevLett.75.1903
Citations: PlumX Metrics

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.

1994HU18      Yad.Fiz. 57, No 7, 1165 (1994); Phys.Atomic Nuclei 57, 1099 (1994)

E.K.Hulet

Role of the Second Barrier Upon Mass Division in the Spontaneous Fission of the Heaviest Elements

RADIOACTIVITY ^252,254No, ²⁵⁶Rf, ²⁵⁸Rf(SF); measured fission fragment mass, total kinetic energy distributions; deduced sharp asymmetrical to symmetrical mass division transition, second barrier role. Data on other nuclei included. Sources from (heavy ion, xn) reactions.

1994LA22      Phys.Rev.Lett. 73, 624 (1994)

Yu.A.Lazarev, Yu.V.Lobanov, Yu.Ts.Oganessian, V.K.Utyonkov, F.Sh.Abdullin, G.V.Buklanov, B.N.Gikal, S.Iliev, A.N.Mezentsev, A.N.Polyakov, I.M.Sedykh, I.V.Shirokovsky, V.G.Subbotin, A.M.Sukhov, Yu.S.Tsyganov, V.E.Zhuchko, R.W.Lougheed, K.J.Moody, J.F.Wild, E.K.Hulet, J.H.McQuaid

Discovery of Enhanced Nuclear Stability Near the Deformed Shells N = 162 and Z = 108

NUCLEAR REACTIONS ²⁴⁸Cm(²²Ne, X), E=116, 121 MeV; measured Eα, Iα; deduced evidence for ²⁶⁵Sg, ²⁶⁶Sg.

RADIOACTIVITY ²⁶⁵Sg, ²⁶⁶Sg(α); measured Eα, Iα; deduced T_1/2, SF-decay upper limits. ²⁶²Rf [from ²⁶⁶Sg(α-decay)]; measured T_1/2.

doi: 10.1103/PhysRevLett.73.624
Citations: PlumX Metrics

1994LO27      J.Alloys and Compounds 213/214, 61 (1994)

R.W.Lougheed, K.J.Moody, J.FD.Wild, E.K.Hulet, J.H.McQuaid, Yu.A.Lazarev, Yu.V.Lobanov, Yu.Ts.Oganessian, V.K.Utyonkov, F.Sh.Abdullin, G.V.Buklanov, B.N.Gikal, S.Iliev, A.N.Mezentsev, A.N.Polyakov, I.M.Sedykh, I.V.Shirokovsky, V.G.Subbotin, A.M.Sukhov, Yu.S.Tsyganov, V.E.Zhuchko

Observation of enhanced nuclear stability near the 162 neutron shell

RADIOACTIVITY ^265,266Sg(α) [from ²⁴⁸Cm(²²Ne, xn)]; measured Eα, T_1/2. ²⁶²Rf(SF) [from ²⁶⁶Sg decay]; measured T_1/2. Comparison with model predictions.

doi: 10.1016/0925-8388(94)90881-8
Citations: PlumX Metrics

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.

1992MO03      Phys.Rev. C45, 1392 (1992)

K.J.Moody, E.K.Hulet, P.B.Price

Search for Cluster Radioactivity of ²³⁷Np

RADIOACTIVITY ²³⁷Np; measured cluster emission T_1/2 lower limit; deduced ³⁰Mg, ³²Si as most likely clusters.

doi: 10.1103/PhysRevC.45.1392
Citations: PlumX Metrics

1992MO25      Phys.Rev. C46, 2624 (1992)

K.J.Moody, R.W.Lougheed, E.K.Hulet

Search for the Double Beta Decay of ²⁴⁴Pu

RADIOACTIVITY ²⁴⁴Pu(2β^-); measured ingrowth of ²⁴⁴Cm, alpha activity; deduced T_1/2 limit.

doi: 10.1103/PhysRevC.46.2624
Citations: PlumX Metrics

1991PR02      Phys.Rev. C43, 1781 (1991)

P.B.Price, K.J.Moody, E.K.Hulet, R.Bonetti, C.Migliorino

High-Statistics Study of Cluster Radioactivity from ²³³U

RADIOACTIVITY ²³³U(α), (²⁴Ne), (²⁵Ne), (²⁸Mg); measured T_1/2; deduced relative branching ratios. Track recording phosphate glass detector.

doi: 10.1103/PhysRevC.43.1781
Citations: PlumX Metrics

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.

1989MO07      Phys.Rev. C39, 2445 (1989)

K.J.Moody, E.K.Hulet, S.Wang, P.B.Price

Heavy-Fragment Radioactivity of ²³⁴U

RADIOACTIVITY ²³⁴U(²⁴Ne), (²⁶Ne), (²⁸Mg); measured T_1/2, branching ratios, fragment energies.

doi: 10.1103/PhysRevC.39.2445
Citations: PlumX Metrics

1989WA10      Phys.Rev. C39, 1647 (1989)

S.Wang, D.Snowden-Ifft, P.B.Price, K.J.Moody, E.K.Hulet

Heavy-Fragment Radioactivity of ²³⁸Pu: Si and Mg emission

RADIOACTIVITY ²³⁸Pu(²⁸Mg), (³⁰Mg), (³²Si); measured decay T_1/2, branching ratio relative to α-decay.

doi: 10.1103/PhysRevC.39.1647
Citations: PlumX Metrics

1987MO28      Phys.Rev. C36, 2710 (1987)

K.J.Moody, E.K.Hulet, Shicheng Wang, P.B.Price, S.W.Barwick

Search for Heavy-Ion Radioactivity from ²⁴¹Am

RADIOACTIVITY ²⁴¹Am(³⁴Si), (α); measured (³⁴Si)/α branching upper limit. Track detectors. Cluster model, super asymmetric fission predictions comparisons.

doi: 10.1103/PhysRevC.36.2710
Citations: PlumX Metrics

1987SH27      Phys.Rev. C36, 2717 (1987)

Shicheng Wang, P.B.Price, S.W.Barwick, K.J.Moody, E.K.Hulet

Radioactive Decay of ²³⁴U via Ne and Mg Emission

RADIOACTIVITY ²³⁴U(²⁴Ne), (²⁶Ne), (²⁸Mg), (SF), (α); measured T_1/2, Ne, Mg, SF-decay fragment charges, ranges; deduced branching ratio relative to alpha decay. Track recording phosphate glass detector.

doi: 10.1103/PhysRevC.36.2717
Citations: PlumX Metrics

1986CZ02      Nucl.Phys. A458, 123 (1986)

T.Czosnyka, D.Cline, L.Hasselgren, C.Y.Wu, R.M.Diamond, H.Kluge, C.Roulet, E.K.Hulet, R.W.Lougheed, C.Baktash

E2 Properties of the Ground State Band in ²⁴⁸Cm

NUCLEAR REACTIONS ²⁴⁸Cm(¹³⁶Xe, ¹³⁶Xe'), E=641 MeV; ²⁴⁸Cm(⁵⁸Ni, ⁵⁸Ni'), E=260 MeV; measured Eγ, Iγ following Coulomb excitation. ²⁴⁸Cm levels deduced J, π, E2 transition matrix elements.

doi: 10.1016/0375-9474(86)90286-1
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

1986KR02      Phys.Rev. C33, 504 (1986)

J.V.Kratz, W.Bruchle, H.Folger, H.Gaggeler, M.Schadel, K.Summerer, G.Wirth, N.Greulich, G.Herrmann, U.Hickmann, P.Peuser, N.Trautmann, E.K.Hulet, R.W.Lougheed, J.M.Nitschke, R.L.Ferguson, R.L.Hahn

Search for Superheavy Elements in Damped Collisions between ²³⁸U and ²⁴⁸Cm

NUCLEAR REACTIONS ²⁴⁸Cm(²³⁸U, X), E=6.2-7.3 MeV/nucleon; measured SF-fission fragment kinetic energies, neutron multiplicities; deduced superheavy nuclei production σ upper limit. Chemical separation, spontaneous fission counting.

doi: 10.1103/PhysRevC.33.504
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

1986MO06      Phys.Rev. C33, 1315 (1986)

K.J.Moody, D.Lee, R.B.Welch, K.E.Gregorich, G.T.Seaborg, R.W.Lougheed, E.K.Hulet

Actinide Production in Reactions of Heavy Ions with ²⁴⁸Cm

NUCLEAR REACTIONS ²⁴⁸Cm(¹⁶O, X), E=96.5 MeV; ²⁴⁸Cm(¹³⁶Xe, X), E=699-790 MeV; ²⁴⁸Cm(⁸⁶Kr, X), E=493-546 MeV; measured actinide (²³²Pa-²⁵⁶Fm) yields; deduced optimum reactions.

doi: 10.1103/PhysRevC.33.1315
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2552.

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.

1985SO03      Phys.Rev. C31, 1801 (1985)

L.P.Somerville, M.J.Nurmia, J.M.Nitschke, A.Ghiorso, E.K.Hulet, R.W.Lougheed

Spontaneous Fission of Rutherfordium Isotopes

RADIOACTIVITY ²⁵⁶Rf(SF) [from ²⁴⁹Cf(¹²C, 5n), E=85 MeV]; ²⁵⁷Rf(SF) [from ²⁴⁹Cf(¹²C, 4n), E=75 MeV]; ²⁵⁸Rf(SF) [from ²⁴⁶Cm(¹⁶O, 4n), E=95 MeV]; ²⁵⁹Rf(SF) [from ²⁴⁵Cm(¹⁸O, 4n), E=93 MeV]; ²⁶⁰Rf(SF) [from ²⁴⁹Bk(¹⁵N, 4n), E=80 MeV; ²⁴⁸Cm(¹⁶O, 4n), E=92 MeV; ²⁴⁹Cf(¹⁶O, 3nα), E=96 MeV]; ²⁶²Rf(SF) [from ²⁴⁸Cm(¹⁸O, 4n), E=89 MeV; ²⁴⁴Pu(²²Ne, 4n), E=113 MeV]; measured T_1/2(SF), fission branching. Fast tape system.

NUCLEAR REACTIONS, ICPND ²⁴⁴Pu(²²Ne, 4n), E=113 MeV; ²⁴⁸Cm(¹⁸O, 4n), E=89 MeV; ²⁴⁹Cf(¹⁸O, 3nα), E=96 MeV; ²⁴⁸Cm(¹⁶O, 4n), E=92 MeV; ²⁴⁹Bk(¹⁵N, 4n), E=80 MeV; ²⁴⁵Cm(¹⁸O, 4n), E=93 MeV; ²⁴⁶Cm(¹⁶O, 4n), E=95 MeV; ²⁴⁹Cf(¹²C, 4n), E=75 MeV; ²⁴⁹Cf(¹²C, 5n), E=85 MeV; measured residual production σ, T_1/2(SF), fission branch estimate. Fast tape system.

doi: 10.1103/PhysRevC.31.1801
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.

1982SC05      Phys.Rev.Lett. 48, 852 (1982)

M.Schadel, W.Bruchle, H.Gaggeler, J.V.Kratz, K.Summerer, G.Wirth, G.Herrmann, R.Stakemann, G.Tittel, N.Trautmann, J.M.Nitschke, E.K.Hulet, R.W.Lougheed, R.L.Hahn, R.L.Ferguson

Actinide Production in Collisions of ²³⁸U with ²⁴⁸Cm

NUCLEAR REACTIONS ²⁴⁸Cm(²³⁸U, X), E=7.4 MeV/nucleon; measured production σ for ^{244,246,248,250,251}Bk, ^{246,248,250,251,252,253,254}Cf, ^{252,253,254,255,256}Es, ^{252,253,254,255,256}Fm, ^{255,256,257,258}Md; deduced dominant transfer reaction deexcitation channel.

doi: 10.1103/PhysRevLett.48.852
Citations: PlumX Metrics

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

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.

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 T_1/2. ²⁶⁰Rf deduced no evidence for 80 ms spontaneous fission decay.

doi: 10.1016/0375-9474(81)90564-9
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.

1980HU03      Phys.Rev. C21, 966 (1980)

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

Spontaneous Fission of ²⁵⁹Fm

NUCLEAR REACTIONS ²⁵⁷Fm(t, p), E=16 MeV; measured σ, (fragment)(fragment)-coin. ²⁵⁹Fm deduced SF isomer, T_1/2, fragment mass distribution.

doi: 10.1103/PhysRevC.21.966
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset10924.

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

1978LO13      J.Inorg.Nucl.Chem. 40, 1865 (1978)

R.W.Lougheed, J.F.Wild, E.K.Hulet, R.W.Hoff, J.H.Landrum

A New Isotope of Curium and its Decay Properties: ²⁵¹Cm

RADIOACTIVITY ²⁵¹Cm [from ²⁵⁰Cm(n, γ)]; measured T_1/2, Eγ, Iγ, Qβ-, Eβ. ²⁵¹Bk deduced levels, J, K, π.

doi: 10.1016/0022-1902(78)80244-9
Citations: PlumX Metrics

1978WI12      S.Afr.J.Phys. 1, 116 (1978)

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

Fission Properties of the Heavy Actinides

NUCLEAR REACTIONS ²⁵⁴Es(d, pF), (t, pF), E not given; measured fission barriers.

RADIOACTIVITY, Fission ²⁵⁶Cf(SF) [from ²⁵⁴Cf(t, p)]; ²⁵⁸Fm(SF) [from ²⁵⁵Es(α, n)²⁵⁸Md+electron capture]; ²⁵⁹Fm(SF) [from ²⁵⁷Fm(t, p)]; measured fragment mass distribution, average kinetic energy release.

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.

1977BU14      Phys.Lett. 68B, 122 (1977)

P.A.Butler, I.Y.Lee, J.O.Newton, Y.El-Masri, M.M.Aleonard, P.Colombani, R.M.Diamond, F.S.Stephens, R.W.Lougheed, E.K.Hulet

Fission of ²³²Th, ²³⁸U, ²⁴⁴Pu, ²⁴⁸Cm Induced by Xe and Kr Ions at Coulomb Barrier Energies

NUCLEAR REACTIONS ²³²Th, ²³⁸U, ²⁴⁴Pu, ²⁴⁸Cm(⁸⁶Kr, F), (¹³⁶Xe, F), E ≈ Coulomb barrier; measured σ(θ).

doi: 10.1016/0370-2693(77)90181-2
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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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2537.

1976BO13      J.Inorg.Nucl.Chem. 38, 1291 (1976)

D.D.Bode, J.F.Wild, E.K.Hulet

Mossbauer Studies of Americium Compounds

NUCLEAR MOMENTS ²⁴³Am; measured isomer shift, quadrupole moment ratio. Mossbauer studies in Am compounds.

doi: 10.1016/0022-1902(76)80138-8
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1974GH04      Phys.Rev.Lett. 33, 1490 (1974)

A.Ghiorso, J.M.Nitschke, J.R.Alonso, C.T.Alonso, M.Nurmia, G.T.Seaborg, E.K.Hulet, R.W.Lougheed

Element 106

NUCLEAR REACTIONS ²⁴⁹Cf(¹⁸O, X)²⁶³Sg, E=95 MeV; measured reaction products, Eα, Iα; deduced σ.

RADIOACTIVITY ²⁶³Sg(α); measured decay products, Eα, Iα; deduced T_1/2.

doi: 10.1103/PhysRevLett.33.1490
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2532.

1974RA02      Phys.Rev. C9, 399 (1974)

R.C.Ragaini, E.K.Hulet, R.W.Lougheed, J.Wild

Symmetric Fission in the Neutron-Induced Fission of ²⁵⁵Fm

NUCLEAR REACTIONS ²⁵¹Cf, ²⁵⁵Fm(n, F), E=thermal; measured E(fragment), deduced fragment mass distribution.

doi: 10.1103/PhysRevC.9.399
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset10393.

1973HU01      Radiochim.Radioanal.Lett. 13, 217 (1973)

E.K.Hulet, J.F.Wild

Decay of Californium-248

RADIOACTIVITY ²⁴⁸Cf; measured T_1/2, α/SF-ratio, xα-coin.

1973WI03      J.Inorg.Nucl.Chem. 35, 1063 (1973)

J.F.Wild, E.K.Hulet, R.W.Lougheed

Some Nuclear Properties of Fermium-257

RADIOACTIVITY ²⁵⁷Fm; measured T_1/2, α/SF ratio.

doi: 10.1016/0022-1902(73)80176-9
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 dataset10341.

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
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1971HU03      Phys.Rev. Lett. 26, 523 (1971)

E.K.Hulet, J.F.Wild, R.W.Lougheed, J.E.Evans, B.J.Qualheim, M.Nurmia, A.Ghiorso

Spontaneous-Fission Half-Life of ²⁵⁸Fm and Nuclear Instability

RADIOACTIVITY, Fission ²⁵⁸Fm(SF)[from ²⁵⁷Fm(d, p)]; measured T_1/2.

doi: 10.1103/PhysRevLett.26.523
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1971JO13      Phys.Rev.Lett. 27, 45 (1971)

W.John, E.K.Hulet, R.W.Lougheed, J.J.Wesolowski

Symmetric Fission Observed in Thermal-Neutron-Induced and Spontaneous Fission of ²⁵⁷Fm

RADIOACTIVITY, Fission ²⁵⁷Fm(SF); measured (fragment)(fragment)-coin; deduced mass distributions.

NUCLEAR REACTIONS, Fission ²⁵⁷Fm(n, F), E=thermal; measured (fragment)(fragment)-coin; deduced mass distributions.

doi: 10.1103/PhysRevLett.27.45
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14532.

1970HU17      UCRL-72858 (1970)

E.K.Hulet, J.F.Wild, R.W.Lougheed, J.E.Evans, B.J.Qualheim, M.Nurmia, A.Ghiorso

Spontaneous-Fission Half-Life of ²⁵⁸Fm and Nuclear Instability

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
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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.

1968HU06      Bull.Am.Phys.Soc. 13, No.4, 604, DF7 (1968); Oral Report

E.K.Hulet, A.Ghiorso, R.W.Lougheed, J.E.Evans, J.D.Brady, R.W.Hoff, R.E.Stone, B.J.Qualheim

Discovery of ²⁵⁸Md

NUCLEAR STRUCTURE ²⁵⁸Md; measured not abstracted; deduced nuclear properties.

1968ST02      J.Inorg.Nucl.Chem. 30, 2003 (1968)

R.E.Stone, E.K.Hulet

Radiochemical Determination of the Alpha Half-Life of ²⁴¹Am

NUCLEAR STRUCTURE ²⁴¹Am; measured not abstracted; deduced nuclear properties.

doi: 10.1016/0022-1902(68)80190-3
Citations: PlumX Metrics

1967HU04      UCRL-70636 (1967); Priv.Comm. (September 1967)

E.K.Hulet

Nuclear Decay Properties of Separated Isotopes of Mendelevium and Fermium

NUCLEAR STRUCTURE Fm, Md; measured not abstracted; deduced nuclear properties.

1967WO01      J.Opt.Soc.Am. 57, 550 (1967)

E.F.Worden, E.K.Hulet, R.Lougheed, J.G.Conway

Nuclear Spin of ²⁴⁹Bk from the Hyperfine Structure in its Emission Spectrum

NUCLEAR STRUCTURE ²⁴⁹Bk; measured not abstracted; deduced nuclear properties.

doi: 10.1364/JOSA.57.000550
Citations: PlumX Metrics

1966HO01      Phys.Rev. 148, 1192 (1966); See keynumber 1966RG01

R.W.Hoff, C.P.Bailey, G.W.Barton, G.H.Coleman, M.S.Coops, J.E.Evans, B.A.Hannon, W.N.Hayes, R.A.Heckman, E.K.Hulet, R.W.Lougheed, R.J.Morrow, R.S.Newbury, B.J.Qualheim, R.Quong, E.H.Stearns, H.D.Wilson, J.P.Balagna, J.W.Barnes, G.A.Cowan, W.R.Daniels, B.J.Dropesky, G.P.Ford, J.S.Gilmore, S.B.Helmick, D.C.Hoffman, J.D.Knight, G.W.Knobeloch, C.J.Orth, T.T.Shull, H.L.Smith, W.G.Warren, K.Wolfsberg, F.Asaro, J.Burnett, B.B.Cunningham, S.M.Fried, J.T.Haley, A.Ghiorso, J.Green, R.Latimer, F.T.McCarthy, H.V.Michel, M.C.Michel, D.F.Mosier, T.C.Parsons, I.Perlman, J.E.Rees, J.C.Wallmann, R.F.Barnes, L.J.Basile, H.Diamond, P.R.Fields, A.M.Friedman, E.P.Horowitz, J.K.Lerner, D.N.Metta, J.Milsted, R.K.Sjoblom, C.M.Stevens

Nuclear Decay Properties of Heavy Nuclides Produced in Thermonuclear Explosions - Par and Barbel Events

RADIOACTIVITY ^{251,252,253,254}Cf, ²⁵⁵Es, ^257,258Fm(α), ²⁵⁰Cm(SF), ²⁵¹Bk, ²⁵²Cm(β^-) [from U(n, F), U(n, X), E ∼ 2 MeV]; measured decay products, Eα, Iα; deduced α-particles energies, α-decay branchings, T_1/2. Two low-yield thermonuclear explosions, the Par and Barbel events, chemical separation of products.

NUCLEAR REACTIONS Cm(n, X)²⁴⁹Cf/²⁵⁰Cf/²⁵²Cf/²⁵²Cf/²⁵³Cf/²⁵⁴Cf/²⁵³Es/²⁵⁴Es/²⁵⁵Es, E thermal; measured reaction products, Eα, Iα, Eβ, Iβ; deduced isotopic abundances. Cm irradions, reactor.

doi: 10.1103/PhysRev.148.1192
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1964AS11      Priv.Comm., quoted by 1964Hy02 unpublished (1964)

F.Asaro, F.S.Stephens, Jr., J.M.Hollander, E.K.Hulet, R.W.Hoff, I.Perlman

1964HU02      Phys.Rev.Letters 13, 343 (1964)

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

79-Day Fermium Isotope of Mass 257

NUCLEAR STRUCTURE ²⁵⁷Fm; measured not abstracted; deduced nuclear properties.

doi: 10.1103/PhysRevLett.13.343
Citations: PlumX Metrics

1961HU18      Priv.Comm., quoted by 1964Hy02, unpublished (1961)

E.K.Hulet, F.Asaro

RADIOACTIVITY ²⁴⁸Cm; measured Eα, Iα. Magnetic spectrograph.

1959HO02      J.Nuclear Energy 8, 224 (1959)

R.W.Hoff, E.K.Hulet, M.C.Michel

Branching Ratio of ^242mAm Decay

1958HO98      J.Nuclear Energy 8, 224 (1958)

R.W.Hoff, E.K.Hulet, M.C.Michel

Branching Ratio of ^242mAm Decay

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset12578.

1957HU06      Priv.Comm., quoted by 1958ST50, unpublished (1957)

E.K.Hulet

1957HU70      Phys.Rev. 107, 1294 (1957)

E.K.Hulet, R.W.Hoff, H.R.Bowman, M.C.Michel

Thermal-Neutron Fission Cross Sections for Isotopes of Plutonium, Americium, and Curium

doi: 10.1103/PhysRev.107.1294
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset12497.

1956HU27      Phys.Rev. 102, 182 (1956)

E.K.Hulet

New Isotope of Berkelium

doi: 10.1103/PhysRev.102.182
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1956HU97      Phys.Rev. 102, 1621 (1956)

E.K.Hulet, H.R.Bowman, M.C.Michel, R.W.Hoff

Thermal-Neutron Fission Cross Section Of Pu²⁴⁰

NUCLEAR REACTIONS ²⁴⁰Pu(n, f), E=0.0253 eV; measured products; deduced σ, σ(E). Data were imported from EXFOR entry 13466.

doi: 10.1103/PhysRev.102.1621
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13466.

1955HO67      Phys.Rev. 100, 1403 (1955)

R.W.Hoff, H.Jaffe, T.O.Passell, F.S.Stephens, E.K.Hulet, S.G.Thompson

Radioactive Decay of the Isomers of Americium-242

doi: 10.1103/PhysRev.100.1403
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1954HU50      Phys.Rev. 95, 1703 (1954)

E.K.Hulet, S.G.Thompson, A.Ghiorso

Isotopes of Curium, Berkelium, and Californium

doi: 10.1103/PhysRev.95.1703
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1954HU58      Phys.Rev. 95, 1703 (1954)

E.K.Hulet, S.G.Thompson, A.Ghiorso

Isotopes of Curium, Berkelium, and Californium

doi: 10.1103/PhysRev.95.1703
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1953HU60      Thesis, Univ.California (1953); UCRL-2283 (1953)

E.K.Hulet

An Investigation of the Isotopes of Berkelium and Californium

1953HU85      Phys.Rev. 89, 878 (1953)

E.K.Hulet, S.G.Thompson, A.Ghiorso

Spontaneous Fission Rate of Cf²⁴⁶

doi: 10.1103/PhysRev.89.878
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1951HU39      Phys.Rev. 84, 366 (1951)

E.K.Hulet, S.G.Thompson, A.Ghiorso, K.Street, Jr.

New Isotopes of Berkelium and Californium

RADIOACTIVITY ^243,245Bk(EC), (α), ^243,245Cm, ²⁴⁶Cf(α) [from ^242,243,244Cm(d, X), E=16 MeV; ^242,243,244Cm(³He, X), E=35 MeV]; measured decay products, Eβ, Iβ, Eα, Iα; deduced new isotopes T_1/2. Comparison with available data. The pile facilities of the Atomic Energy Project, National Research Council of Canada, Chalk River, Ontario, Canada. The 60-inch cyclotron of the Crocker Laboratory.

doi: 10.1103/PhysRev.84.366.2
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1950RE55      Phys.Rev. 80, 467 (1950)

F.L.Reynolds, E.K.Hulet, K.Street, Jr.

Mass-Spectrographic Identification of Cm²⁴³ and Cm²⁴⁴

doi: 10.1103/PhysRev.80.467
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