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Search: Author = J.H.Landrum

Found 28 matches.

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2009OG02      Phys.Rev. C 79, 024603 (2009)

Yu.Ts.Oganessian, V.K.Utyonkov, Yu.V.Lobanov, F.Sh.Abdullin, A.N.Polyakov, R.N.Sagaidak, I.V.Shirokovsky, Yu.S.Tsyganov, A.A.Voinov, A.N.Mezentsev, V.G.Subbotin, A.M.Sukhov, K.Subotic, V.I.Zagrebaev, S.N.Dmitriev, R.A.Henderson, K.J.Moody, J.M.Kenneally, J.H.Landrum, D.A.Shaughnessy, M.A.Stoyer, N.J.Stoyer, P.A.Wilk

Attempt to produce element 120 in the 244Pu+58Fe reaction

NUCLEAR REACTIONS 244Pu(58Fe, xn)298120/299120, E=330.4 MeV;measured α-particle spectra, (evaporation residues)α-coin, and upper limit of production cross section for Z=120 element. No decay chains for 298120 and 299120 were observed.

doi: 10.1103/PhysRevC.79.024603
Citations: PlumX Metrics


2007OG02      Phys.Rev. C 76, 011601 (2007)

Yu.Ts.Oganessian, V.K.Utyonkov, Yu.V.Lobanov, F.Sh.Abdullin, A.N.Polyakov, R.N.Sagaidak, I.V.Shirokovsky, Yu.S.Tsyganov, A.A.Voinov, G.G.Gulbekian, S.L.Bogomolov, B.N.Gikal, A.N.Mezentsev, V.G.Subbotin, A.M.Sukhov, K.Subotic, V.I.Zagrebaev, G.K.Vostokin, M.G.Itkis, R.A.Henderson, J.M.Kenneally, J.H.Landrum, K.J.Moody, D.A.Shaughnessy, M.A.Stoyer, N.J.Stoyer, P.A.Wilk

Synthesis of the isotope 282113 in the 237Np+48Ca fusion reaction

NUCLEAR REACTIONS 237Np(48Ca, 3n)282Nh, E=244 MeV; measured Eα, production cross section and T1/2.

doi: 10.1103/PhysRevC.76.011601
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0892. Data from this article have been entered in the XUNDL database. For more information, click here.


2007ST18      Nucl.Phys. A787, 388c (2007)

N.J.Stoyer, J.H.Landrum, P.A.Wilk, K.J.Moody, J.M.Kenneally, D.A.Shaughnessy, M.A.Stoyer, J.F.Wild, R.W.Lougheed, S.N.Dmitriev, Yu.Ts.Oganessian, S.V.Shishkin, N.V.Aksenov, E.E.Tereshatov, G.A.Bozhikov, G.K.Vostokin, V.K.Utyonkov, A.A.Yeremin

Chemical Identification of a Long-Lived Isotope of Dubnium, a Descendant of Element 115

NUCLEAR REACTIONS 238U(48Ca, 3n), E=247 MeV; measured super heavy element yield, Eα, Iα; analyzed production σ. Detailed chemical analysis procedure given.

NUCLEAR STRUCTURE 268Db, 272Bh, 276Mt, 280Rg, 284Nh, 288Mc; analyzed superheavy element production and decay data.

RADIOACTIVITY 268Db(SF); 272Bh, 276Mt, 280Rg, 284Nh, 288Mc(α); measured Eα, E(fragment), T1/2.

doi: 10.1016/j.nuclphysa.2006.12.060
Citations: PlumX Metrics


2006OG05      Phys.Rev. C 74, 044602 (2006)

Yu.Ts.Oganessian, V.K.Utyonkov, Yu.V.Lobanov, F.Sh.Abdullin, A.N.Polyakov, R.N.Sagaidak, I.V.Shirokovsky, Yu.S.Tsyganov, A.A.Voinov, G.G.Gulbekian, S.L.Bogomolov, B.N.Gikal, A.N.Mezentsev, S.Iliev, V.G.Subbotin, A.M.Sukhov, K.Subotic, V.I.Zagrebaev, G.K.Vostokin, M.G.Itkis, K.J.Moody, J.B.Patin, D.A.Shaughnessy, M.A.Stoyer, N.J.Stoyer, P.A.Wilk, J.M.Kenneally, J.H.Landrum, J.F.Wild, R.W.Lougheed

Synthesis of the isotopes of elements 118 and 116 in the 249Cf and 245Cm + 48Ca fusion reactions

NUCLEAR REACTIONS 245Cm(48Ca, 2n), (48Ca, 3n), E=249, 255 MeV; 249Cf(48Ca, 3n), E=251 MeV; measured Eα, αα-coin, fission fragment spectra following residual nucleus decay; deduced σ.

RADIOACTIVITY 294Og, 290,291Lv, 286,287Fl, 283Cn, 279Ds, 275Hs, 271Sg(α) [from 245Cm, 249Cf(48Ca, xn) and subsequent decay]; measured Eα, T1/2. 282Cn, 267Rf(SF) [from α-decay of 286Rf and 271Sg]; measured fission fragment spectra, T1/2.

doi: 10.1103/PhysRevC.74.044602
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0856. Data from this article have been entered in the XUNDL database. For more information, click here.


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.


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


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.


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.


1983HI03      Phys.Rev. C27, 2203 (1983)

H.G.Hicks, J.H.Landrum, E.A.Henry, R.A.Meyer, S.Brant, V.Paar

Population of 133I from the Beta Decay of Fission Product 133gTe and the Cluster-Vibration Model

NUCLEAR STRUCTURE 133I; calculated levels, B(λ), branching ratios, static quadrupole moment, μ.

RADIOACTIVITY 133Te(β-) [from 235U(n, F), E=thermal]; measured Eγ, Iγ, γγ-coin; deduced log ft. 133I deduced levels, J, π, β-branching, γ-branching, B(λ). Cluster vibration model. Hyperpure Ge, Ge(Li) detectors.

doi: 10.1103/PhysRevC.27.2203
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.


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 T1/2. 259Md(SF) [from 259No(EC-decay)]; measured T1/2, (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.


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


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.


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, T1/2, fragment mass distribution.

doi: 10.1103/PhysRevC.21.966
Citations: PlumX Metrics

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 T1/2=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 T1/2, 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.


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.


1976ME07      Phys.Rev. C13, 1617 (1976)

R.A.Meyer, J.H.Landrum, S.V.Jackson, W.H.Zoller, W.B.Walters

Three-Particle One-Hole Configurations in Odd-Odd 134I and the Decay of 134Te

RADIOACTIVITY 134Te; measured Eγ, Iγ, γγ-coin. 134I deduced levels, J, π.

doi: 10.1103/PhysRevC.13.1617
Citations: PlumX Metrics


1976ME16      Phys.Rev. C14, 1152 (1976)

R.A.Meyer, F.F.Momyer, J.H.Landrum, E.A.Henry, R.P.Yaffe, W.B.Walters

Levels of Odd-Mass Xe Populated in the Beta Decay of 129Cs and 133I

RADIOACTIVITY 129Cs, 133I; measured Eγ, Iγ, γγ-coin; deduced log ft. 129,133Xe deduced levels, J, π.

doi: 10.1103/PhysRevC.14.1152
Citations: PlumX Metrics


1973LA28      Phys.Rev. C8, 1938 (1973)

J.H.Landrum, R.J.Nagle, M.Lindner

(n, 2n) Cross Sections for 238U and 237Np in the Region of 14 MeV

NUCLEAR REACTIONS 237Np, 238U(n, 2n), E=13.7-14.9 MeV; measured σ, production σ for 237U, 236Pu.

doi: 10.1103/PhysRevC.8.1938
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset10376.


1972MC25      Z.Phys. 255, 335 (1972)

J.C.McGeorge, D.W.Nix, R.W.Fink, J.H.Landrum

L-Subshell Fluorescence and Coster-Kronig Yields at Z = 92 and the Decay of 235Np

RADIOACTIVITY 235Np; measured (K X-ray)(L X-ray)-coin, L/K EC ratio deduced Q(EC), Pl/Pk, Pk. U deduced L-subshell fluorescence, Coster-Kronig yields.

doi: 10.1007/BF01392538
Citations: PlumX Metrics


1970LA08      J.Inorg.Nucl.Chem. 32, 2131 (1970)

J.H.Landrum

Mass-Spectrometric Determination of the Half-Life of Neptunium-235

RADIOACTIVITY 235Np; measured T1/2. Mass-spectrometric method.

doi: 10.1016/0022-1902(70)80488-2
Citations: PlumX Metrics


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