NSR Query Results
Output year order : Descending NSR database version of April 25, 2024. Search: Author = R.W.Lougheed Found 102 matches. Showing 1 to 100. [Next]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
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
2005AH03 Phys.Rev. C 71, 054305 (2005) I.Ahmad, F.G.Kondev, E.F.Moore, M.P.Carpenter, R.R.Chasman, J.P.Greene, R.V.F.Janssens, T.Lauritsen, C.J.Lister, D.Seweryniak, R.W.Hoff, J.E.Evans, R.W.Lougheed, C.E.Porter, L.K.Felker Energy levels of 249Bk populated in the α decay of 25399Es and β- decay of 24996Cm RADIOACTIVITY 253Es(α); measured Eα, Eγ, γγ-, αγ-coin. 249Cm(β-) [from 248Cm(n, γ)]; measured Eγ, Iγ. 249Bk deduced levels, J, π, configurations, B(λ), g factors. 253Es(SF); measured Eγ, Iγ from fission fragment decay; deduced fission branching ratio. Gammasphere array, comparisons with model predictions.
doi: 10.1103/PhysRevC.71.054305
2005OG02 Phys.Rev. C 72, 034611 (2005) Yu.Ts.Oganessian, V.K.Utyonkov, S.N.Dmitriev, Yu.V.Lobanov, M.G.Itkis, A.N.Polyakov, Yu.S.Tsyganov, A.N.Mezentsev, A.V.Yeremin, A.A.Voinov, E.A.Sokol, G.G.Gulbekian, S.L.Bogomolov, S.Iliev, V.G.Subbotin, A.M.Sukhov, G.V.Buklanov, S.V.Shishkin, V.I.Chepigin, G.K.Vostokin, N.V.Aksenov, M.Hussonnois, K.Subotic, V.I.Zagrebaev, K.J.Moody, J.B.Patin, J.F.Wild, M.A.Stoyer, N.J.Stoyer, D.A.Shaughnessy, J.M.Kenneally, P.A.Wilk, R.W.Lougheed, H.W.Gaggeler, D.Schumann, H.Bruchertseifer, R.Eichler Synthesis of elements 115 and 113 in the reaction 243Am + 48Ca NUCLEAR REACTIONS 243Am(48Ca, 3n), (48Ca, 4n), E=248, 253 MeV; measured delayed Eα, αα-coin; deduced σ. RADIOACTIVITY 287,288Mc, 283,284Nh, 279,280Rg, 275,276Mt, 272Bh(α) [from 243Am(48Ca, xn) and subsequent decay]; measured Eα, T1/2; deduced Qα. 267,268Db(SF); measured T1/2.
doi: 10.1103/PhysRevC.72.034611
2005OG03 Eur.Phys.J. A 25, Supplement 1, 589 (2005) Yu.Ts.Oganessian, V.K.Utyonkov, Yu.V.Lobanov, F.Sh.Abdullin, A.N.Polyakov, I.V.Shirokovsky, Yu.S.Tsyganov, G.G.Gulbekian, S.L.Bogomolov, B.N.Gikal, A.N.Mezentsev, S.Iliev, V.G.Subbotin, A.M.Sukhov, A.A.Voinov, G.V.Buklanov, K.Subotic, V.I.Zagrebaev, M.G.Itkis, J.B.Patin, K.J.Moody, J.F.Wild, M.A.Stoyer, N.J.Stoyer, D.A.Shaughnessy, J.M.Kenneally, P.A.Wilk, R.W.Lougheed New elements from Dubna NUCLEAR REACTIONS 238U(48Ca, 3n), (48Ca, 4n), 233U, 242Pu(48Ca, 2n), (48Ca, 3n), (48Ca, 4n), E ≈ 230-250 MeV; measured σ. RADIOACTIVITY 294Og, 290,291,292,293Lv, 287,288,289Fl, 285Cn, 275Hs(α); 286Fl, 283Cn, 279Ds, 271Sg(α), (SF);282,284Cn, 281Ds, 267Rf(SF); measured Eα, T1/2, branching ratios.
doi: 10.1140/epjad/i2005-06-134-9
2004OG03 Phys.Rev. C 69, 021601 (2004); Erratum Phys.Rev. C 69, 029902 (2004) Yu.Ts.Oganessian, V.K.Utyonkov, Yu.V.Lobanov, F.Sh.Abdullin, A.N.Polyakov, I.V.Shirokovsky, Yu.S.Tsyganov, G.G.Gulbekian, S.L.Bogomolov, A.N.Mezentsev, S.Iliev, V.G.Subbotin, A.M.Sukhov, A.A.Voinov, G.V.Buklanov, K.Subotic, V.I.Zagrebaev, M.G.Itkis, J.B.Patin, K.J.Moody, J.F.Wild, M.A.Stoyer, N.J.Stoyer, D.A.Shaughnessy, J.M.Kenneally, R.W.Lougheed Experiments on the synthesis of element 115 in the reaction 243Am(48Ca, xn)291-x115 NUCLEAR REACTIONS 243Am(48Ca, 3n), (48Ca, 4n), E=253 MeV; measured (recoil)α-, αα-coin following residual nucleus decay; deduced production σ. RADIOACTIVITY 287,288Mc, 283,284Nh, 279,280Rg, 275,276Mt, 272Bh(α) [from 243Am(48Ca, xn) and subsequent decay]; measured Eα, T1/2; deduced Qα. 267,268Db(SF) [from 243Am(48Ca, xn) and subsequent decay]; measured T1/2. Comparison with model predictions.
doi: 10.1103/PhysRevC.69.021601
2004OG05 Nucl.Phys. A734, 109 (2004) Yu.Ts.Oganessian, V.K.Utyonkov, Yu.V.Lobanov, F.Sh.Abdullin, A.N.Polyakov, I.V.Shirokovsky, Yu.S.Tsyganov, G.G.Gulbekian, S.L.Bogomolov, B.N.Gikal, A.N.Mezentsev, S.Iliev, V.G.Subbotin, A.M.Sukhov, A.A.Voinov, G.V.Buklanov, K.Subotic, V.I.Zagrebaev, M.G.Itkis, J.B.Patin, K.J.Moody, J.F.Wild, M.A.Stoyer, N.J.Stoyer, D.A.Shaughnessy, J.M.Kenneally, R.W.Lougheed Heavy Element Research at Dubna NUCLEAR REACTIONS 245Cm(48Ca, xn), E*=33 MeV; measured Eα, αα-, (fission fragment)α-coin following residual nucleus decay; deduced evidence for 290,291Lv. 244Pu(48Ca, xn), E*=31-53 MeV; measured evaporation residue excitation functions. Studies of other reactions and nuclides reviewed.
doi: 10.1016/j.nuclphysa.2004.01.020
2004OG07 Phys.Rev. C 69, 054607 (2004) Yu.Ts.Oganessian, V.K.Utyonkov, Yu.V.Lobanov, F.Sh.Abdullin, A.N.Polyakov, I.V.Shirokovsky, Yu.S.Tsyganov, G.G.Gulbekian, S.L.Bogomolov, B.N.Gikal, A.N.Mezentsev, S.Iliev, V.G.Subbotin, A.M.Sukhov, A.A.Voinov, G.V.Buklanov, K.Subotic, V.I.Zagrebaev, M.G.Itkis, J.B.Patin, K.J.Moody, J.F.Wild, M.A.Stoyer, N.J.Stoyer, D.A.Shaughnessy, J.M.Kenneally, R.W.Lougheed Measurements of cross sections for the fusion-evaporation reactions 244Pu(48Ca, xn)292-x114 and 245Cm(48Ca, xn)293-x116 NUCLEAR REACTIONS 244Pu(48Ca, 3n), (48Ca, 4n), (48Ca, 5n), E=243-257 MeV; 245Cm(48Ca, 2n), (48Ca, 3n), E=243 MeV; measured production σ. RADIOACTIVITY 290,291Lv, 286,287,288,289Fl, 283,285Cn(α) [from 244Pu, 245Cm(48Ca, xn) and subsequent decay]; measured Eα, T1/2. 282,284Cn, 279,281Ds(SF); measured fission energy, T1/2.
doi: 10.1103/PhysRevC.69.054607
2004OG10 Prog.Theor.Phys.(Kyoto), Suppl. 154, 406 (2004) Yu.Ts.Oganessian, V.K.Utyonkov, Yu.V.Lobanov, F.Sh.Abdullin, A.N.Polyakov, I.V.Shirokovsky, Yu.S.Tsyganov, G.G.Gulbekian, S.L.Bogomolov, B.N.Gikal, A.N.Mezentsev, S.Iliev, V.G.Subbotin, A.M.Sukhov, A.A.Voinov, G.V.Buklanov, K.Subotic, V.I.Zagrebaev, M.G.Itkis, K.J.Moody, J.F.Wild, M.A.Stoyer, N.J.Stoyer, D.A.Shaughnessy, J.M.Kenneally, J.B.Patin, R.W.Lougheed Synthesis of Superheavy Nuclei in 48Ca-Induced Reactions NUCLEAR REACTIONS 244Pu(48Ca, 3n), (48Ca, 4n), (48Ca, 5n), E* ≈ 30-55 MeV; measured excitation functions. RADIOACTIVITY 290,291Lv, 287,288Mc, 286,287,288,289Fl, 283,284Nh, 283,285Cn, 279,280Rg, 275,276Mt, 272Bh(α); 286Fl, 282,284Cn, 279,281Ds(SF); 294Og(α), (SF); measured Eα, T1/2.
doi: 10.1143/PTPS.154.406
2004OG12 Phys.Rev. C 70, 064609 (2004); Erratum Phys.Rev. C 71, 029902 (2005) Yu.Ts.Oganessian, V.K.Utyonkov, Yu.V.Lobanov, F.Sh.Abdullin, A.N.Polyakov, I.V.Shirokovsky, Yu.S.Tsyganov, G.G.Gulbekian, S.L.Bogomolov, B.N.Gikal, A.N.Mezentsev, S.Iliev, V.G.Subbotin, A.M.Sukhov, A.A.Voinov, G.V.Buklanov, K.Subotic, V.I.Zagrebaev, M.G.Itkis, J.B.Patin, K.J.Moody, J.F.Wild, M.A.Stoyer, N.J.Stoyer, D.A.Shaughnessy, J.M.Kenneally, P.A.Wilk, R.W.Lougheed, R.I.Ilkaev, S.P.Vesnovskii Measurements of cross sections and decay properties of the isotopes of elements 112, 114, and 116 produced in the fusion reactions 233, 238U, 242Pu, and 248Cm + 48Ca NUCLEAR REACTIONS 233,238U, 242Pu, 248Cm(48Ca, 2n), (48Ca, 3n), (48Ca, 4n), (48Ca, 5n), E* ≈ 25-55 MeV; measured excitation functions. Comparison with model predictions. RADIOACTIVITY 271Sg, 275Hs, 279Ds, 282,283,285Cn, 286,287,288,289Fl, 292,293Lv(α); 267Rf, 271Sg, 279,281Ds, 284Cn, 286Fl(SF) [from 233,238U, 242Pu, 248Cm(48Ca, xn) and subsequent decay]; measured Eα, T1/2. Comparison with model predictions.
doi: 10.1103/PhysRevC.70.064609
2004SH21 Nucl.Phys. A734, E5 (2004) D.A.Shaughnessy, K.J.Moody, J.M.Kenneally, J.F.Wild, M.A.Stoyer, R.W.Lougheed, A.V.Yeremin, Yu.Ts.Oganessian Development of a Plutonium Ceramic Target for the MASHA Separator
doi: 10.1016/j.nuclphysa.2004.03.006
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. 2002OG09 Eur.Phys.J. A 15, 201 (2002) Y.T.Oganessian, V.K.Utyonkov, Y.V.Lobanov, F.S.Abdullin, A.N.Polyakov, I.V.Shirokovsky, Yu.S.Tsyganov, G.G.Gulbekian, S.L.Bogomolov, B.N.Gikal, A.N.Mezentsev, S.Iliev, V.G.Subbotin, A.M.Sukhov, O.V.Ivanov, G.V.Buklanov, K.Subotic, A.A.Voinov, M.G.Itkis, K.J.Moody, J.F.Wild, N.J.Stoyer, M.A.Stoyer, R.W.Lougheed, C.A.Laue Synthesis of superheavy nuclei in the reactions of 244Pu and 248Cm with 48Ca NUCLEAR REACTIONS 248Cm(48Ca, 4n), E=240 MeV; 244Pu(48Ca, 4n), (48Ca, 3n), E=236 MeV; measured delayed Eα, αα-coin. RADIOACTIVITY 292Lv, 288,289Fl, 284,285Cn, 281Ds(α) [from 248Cm, 244Pu(48Ca, xn) and subsequent decay]; measured Eα, T1/2.
doi: 10.1140/epja/i2001-10254-4
2001OG01 Phys.Rev. C63, 011301 (2001) Yu.Ts.Oganessian, V.K.Utyonkov, Yu.V.Lobanov, F.Sh.Abdullin, A.N.Polyakov, I.V.Shirokovsky, Yu.S.Tsyganov, G.G.Gulbekian, S.L.Bogomolov, B.N.Gikal, A.N.Mezentsev, S.Iliev, V.G.Subbotin, A.M.Sukhov, O.V.Ivanov, G.V.Buklanov, K.Subotic, M.G.Itkis, K.J.Moody, J.F.Wild, N.J.Stoyer, M.A.Stoyer, R.W.Lougheed, C.A.Laue, Ye.A.Karelin, A.N.Tatarinov Observation of the Decay of 292116 NUCLEAR REACTIONS 248Cm(48Ca, 4n), E=240 MeV; measured Eα, (recoil)α-, αα-coin; deduced evidence for 296Lv, 288Fl, 284Cn, 280Ds. RADIOACTIVITY 292Lv, 288Fl, 284Cn(α); 280Ds(SF) [From 248Cm(48Ca, 4n), E=240 MeV, and subsequent decay]; measured Eα, T1/2.
doi: 10.1103/PhysRevC.63.011301
2001OG08 Phys.Rev. C64, 054606 (2001) Yu.Ts.Oganessian, V.K.Utyonkov, Yu.V.Lobanov, F.Sh.Abdullin, A.N.Polyakov, I.V.Shirokovsky, Yu.S.Tsyganov, A.N.Mezentsev, S.Iliev, V.G.Subbotin, A.M.Sukhov, K.Subotic, O.V.Ivanov, A.N.Voinov, V.I.Zagrebaev, K.J.Moody, J.F.Wild, N.J.Stoyer, M.A.Stoyer, R.W.Lougheed Measurements of Cross Sections for the Fusion-Evaporation Reactions 204, 206, 207, 208Pb + 48Ca and 207Pb + 34S: Decay properties of the even-even nuclides 238Cf and 250No NUCLEAR REACTIONS 206Pb(48Ca, n), (48Ca, 2n), (48Ca, 3n), (48Ca, 4n), E=214-243 MeV; 204,207,208Pb(48Ca, 2n), E=213-220 MeV; 207Pb(34S, 3n), E=160-180 MeV; measured σ. Recoil separator. Comparison with model predictions. RADIOACTIVITY 250No(SF) [from 204,206Pb(48Ca, xn)]; measured T1/2.
doi: 10.1103/PhysRevC.64.054606
2001OG09 Phys.Rev. C64, 064309 (2001) Yu.Ts.Oganessian, V.K.Utyonkov, Yu.V.Lobanov, F.Sh.Abdullin, A.N.Polyakov, I.V.Shirokovsky, Yu.S.Tsyganov, A.N.Mezentsev, S.Iliev, V.G.Subbotin, A.M.Sukhov, G.V.Buklanov, K.Subotic, Yu.A.Lazarev, K.J.Moody, J.F.Wild, N.J.Stoyer, M.A.Stoyer, R.W.Lougheed, C.A.Laue Average Charge States of Heavy Atoms in Dilute Hydrogen ATOMIC PHYSICS Z=89-116; measured average charge states of ions vs velocity in gas-filled recoil separator. Application to synthesis of superheavy nuclei discussed.
doi: 10.1103/PhysRevC.64.064309
2001ZH05 Phys.Rev. C63, 027302 (2001) X.Q.Zhang, J.H.Hamilton, A.V.Ramayya, S.J.Zhu, J.K.Hwang, C.J.Beyer, J.Kormicki, E.F.Jones, P.M.Gore, B.R.S.Babu, T.N.Ginter, R.Aryaeinejad, K.Butler-Moore, J.D.Cole, M.W.Drigert, J.K.Jewell, E.L.Reber, J.Gilat, I.Y.Lee, J.O.Rasmussen, A.V.Daniel, Yu.Ts.Oganessian, G.M.Ter-Akopian, W.C.Ma, P.G.Varmette, L.A.Bernstein, R.W.Lougheed, K.J.Moody, M.A.Stoyer, R.Donangelo, J.-Y.Zhang Observation of a νh11/2 Pair Alignment in Neutron-Rich 118Pd RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 118Pd deduced high-spin levels, J, π, configurations. Gammasphere array.
doi: 10.1103/PhysRevC.63.027302
2000LA34 Phys.Rev. C62, 064307 (2000) Yu.A.Lazarev, Yu.V.Lobanov, Yu.Ts.Oganessian, V.K.Utyonkov, F.Sh.Abdullin, A.N.Polyakov, J.Rigol, I.V.Shirokovsky, Yu.S.Tsyganov, S.Iliev, V.G.Subbotin, A.M.Sukhov, G.V.Buklanov, A.N.Mezentsev, K.Subotic, K.J.Moody, N.J.Stoyer, J.F.Wild, R.W.Lougheed Decay Properties of 257No, 261Rf, and 262Rf NUCLEAR REACTIONS 244Pu(22Ne, 4n), (22Ne, 5n), E=114, 120 MeV; 242Pu(22Ne, 4n), (22Ne, 5n), E=114 MeV; 238U(26Mg, 4n), (26Mg, 5n), E=134, 140 MeV; measured Eα, αα-coin following residual nucleus decay; deduced production σ. RADIOACTIVITY 261,262Rf, 257No(α) [from 244Pu(22Ne, xn) and subsequent decay]; measured Eα, T1/2.
doi: 10.1103/PhysRevC.62.064307
2000OG05 Phys.Rev. C62, 041604 (2000) Yu.Ts.Oganessian, V.K.Utyonkov, Yu.V.Lobanov, F.Sh.Abdullin, A.N.Polyakov, I.V.Shirokovsky, Yu.S.Tsyganov, G.G.Gulbekian, S.L.Bogomolov, B.N.Gikal, A.N.Mezentsev, S.Iliev, V.G.Subbotin, A.M.Sukhov, O.V.Ivanov, G.V.Buklanov, K.Subotic, M.G.Itkis, K.J.Moody, J.F.Wild, N.J.Stoyer, M.A.Stoyer, R.W.Lougheed Synthesis of Superheavy Nuclei in the 48Ca + 244Pu Reaction: 288114 NUCLEAR REACTIONS 244Pu(48Ca, 4n), E ≈ 236 MeV; measured Eα, αα-coin following residual nucleus decay, production σ; deduced evidence for 288Fl, 284Cn, 280Ds. RADIOACTIVITY 288Fl, 284Cn(α); 280Ds(SF) [from 244Pu(48Ca, 4n) and subsequent decay]; measured Eα, T1/2. Comparison with model predictions.
doi: 10.1103/PhysRevC.62.041604
2000OG07 Yad.Fiz. 63, No 10, 1769 (2000); Phys.Atomic Nuclei 63, 1679 (2000) Yu.Ts.Oganessian, V.K.Utyonkov, Yu.V.Lobanov, F.Sh.Abdullin, A.N.Polyakov, I.V.Shirokovsky, Yu.S.Tsyganov, G.G.Gulbekian, S.L.Bogomolov, B.N.Gikal, A.N.Mezentsev, S.Iliev, V.G.Subbotin, A.M.Sukhov, O.V.Ivanov, G.V.Buklanov, K.Subotic, M.G.Itkis, K.J.Moody, J.F.Wild, N.J.Stoyer, M.A.Stoyer, R.W.Lougheed Synthesis of Superheavy Nuclei in 48Ca + 244Pu Interactions NUCLEAR REACTIONS 244Pu(48Ca, 3n), (48Ca, 4n), E ≈ 236 MeV; 248Cm(48Ca, 4n), E not given; measured Eα, fission fragments, (recoil)α-, αα-coin following residual nucleus decay; deduced evidence for 292Lv, 288,289Fl, 284,285Cn, 280,281Ds, 277Hs. RADIOACTIVITY 292Lv, 288,289Fl, 284,285Cn, 281Ds(α); 280Ds, 277Hs(SF) [from 244Pu, 248Cm(48Ca, xn) and subsequent decay ]; measured Eα, T1/2.
doi: 10.1134/1.1320137
2000ST30 Nucl.Instrum.Methods Phys.Res. A455, 433 (2000) N.J.Stoyer, M.A.Stoyer, J.F.Wild, K.J.Moody, R.W.Lougheed, Yu.Ts.Oganessian, V.K.Utyonkov Random Probability Analysis of Heavy-Element Data RADIOACTIVITY 289Fl(α); analyzed Eα, αα-coin; deduced background features. Monte Carlo random probability method, Geiger-Nuttall criteria. Comparisons with other approaches.
doi: 10.1016/S0168-9002(00)00503-9
2000ZH04 Phys.Rev. C61, 014305 (2000) X.Q.Zhang, J.H.Hamilton, A.V.Ramayya, S.J.Zhu, J.K.Hwang, C.J.Beyer, J.Kormicki, E.F.Jones, P.M.Gore, B.R.S.Babu, T.N.Ginter, R.Aryaeinejad, K.Butler-Moore, J.D.Cole, M.W.Drigert, J.K.Jewell, E.L.Reber, J.Gilat, J.O.Rasmussen, A.V.Daniel, Yu.Ts.Oganessian, G.M.Ter-Akopian, W.C.Ma, P.G.Varmette, L.A.Bernstein, R.W.Lougheed, K.J.Moody, M.A.Stoyer Identification of High Spin States in Neutron-Rich 113, 115, 117Pd Nuclei RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 113,115,117Pd deduced high-spin levels, J, π, configurations. Collective features in neighboring isotopes discussed.
doi: 10.1103/PhysRevC.61.014305
1999BU32 J.Phys.(London) G25, 2253 (1999) K.Butler-Moore, R.Aryaeinejad, X.Q.Zhang, B.R.S.Babu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, V.E.Oberacker, S.J.Zhu, J.Kormicki, L.K.Peker, J.D.Cole, Y.X.Dardenne, W.C.Ma, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, I.Y.Lee, M.F.Mohar, J.O.Rasmussen, R.W.Lougheed, K.J.Moody, M.A.Stoyer, J.F.Wild, S.G.Prussin, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, J.Kliman, M.Morhac High-Spin States in Neutron-Rich Even-Even Pd Isotopes RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 112,114,116Pd deduced high-spin levels, J, π, configurations. Gammasphere array. IBA calculations, level systematics in Pd isotopes discussed.
Data from this article have been entered in the XUNDL database.
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1999OG10 Phys.Rev.Lett. 83, 3154 (1999) Yu.Ts.Oganessian, V.K.Utyonkov, Yu.V.Lobanov, F.Sh.Abdullin, A.N.Polyakov, I.V.Shirokovsky, Yu.S.Tsyganov, G.G.Gulbekian, S.L.Bogomolov, B.N.Gikal, A.N.Mezentsev, S.Iliev, V.G.Subbotin, A.M.Sukhov, G.V.Buklanov, K.Subotic, M.G.Itkis, K.J.Moody, J.F.Wild, N.J.Stoyer, M.A.Stoyer, R.W.Lougheed Synthesis of Superheavy Nuclei in the 48Ca + 244Pu Reaction NUCLEAR REACTIONS 244Pu(48Ca, 3n), E=236 MeV; measured σ, Eα, Iα(t), αα-, (recoil)α-coin following residual nucleus decay; deduced evidence for 289Fl, 285Cn, 281Ds. RADIOACTIVITY 289Fl, 285Cn, 281Ds(α) [from 244Pu(48Ca, 3n) and subsequent decay]; measured Eα, T1/2; deduced enhanced stability with respect to neutron number.
doi: 10.1103/PhysRevLett.83.3154
1999SA58 Phys.Rev. C60, 067303 (1999) M.Sakhaee, S.J.Zhu, J.H.Hamilton, A.V.Ramayya, J.K.Hwang, X.Q.Zhang, L.M.Yang, L.Y.Zhu, C.Y.Gan, E.F.Jones, P.M.Gore, T.N.Ginter, B.R.S.Babu, W.C.Ma, J.Kormicki, C.J.Beyer, G.L.Long, J.K.Deng, K.Li, J.D.Cole, R.Aryaeinejad, M.W.Drigert, J.O.Rasmussen, S.Asztalos, I.Y.Lee, A.O.Macchiavelli, S.Y.Chu, K.E.Gregorich, M.F.Mohar, M.A.Stoyer, R.W.Lougheed, K.J.Moody, J.F.Wild, S.G.Prussin, G.M.Ter-Akopian, A.V.Daniel, Yu.Ts.Oganessian Identification of Levels in Neutron-Rich 145Ce and 147Ce Nuclei RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 145,147Ce deduced high-spin levels, J, π, configurations. Gammasphere array. Comparison with particle-plus-rotor calculations.
doi: 10.1103/PhysRevC.60.067303
1999UT01 Phys.Rev.Lett. 82, 505 (1999) S.B.Utter, P.Beiersdorfer, A.Barnes, R.W.Lougheed, J.R.C.Lopez-Urrutia, J.A.Becker, M.S.Weiss Reexamination of the Optical Gamma Ray Decay in 229Th RADIOACTIVITY 233U(α); measured photon spectra; deduced alpha flourescence in air. 229Th deduced no observation of decay from first excited level.
doi: 10.1103/PhysRevLett.82.505
1999ZH05 Phys.Rev. C59, 1316 (1999) S.J.Zhu, J.H.Hamilton, A.V.Ramayya, M.G.Wang, J.K.Hwang, E.F.Jones, L.K.Peker, B.R.S.Babu, G.Drafta, W.C.Ma, G.L.Long, L.Y.Zhu, M.Li, C.Y.Gan, T.N.Ginter, J.Kormicki, J.K.Deng, D.T.Shi, W.E.Collins, J.D.Cole, R.Aryaeinejad, M.W.Drigert, J.O.Rasmussen, R.Donangelo, J.Gilat, S.Asztalos, I.Y.Lee, A.O.Macchiavelli, S.Y.Chu, K.E.Gregorich, M.F.Mohar, M.A.Stoyer, R.W.Lougheed, K.J.Moody, J.F.Wild, S.G.Prussin, G.M.Ter-Akopian, A.V.Daniel, Yu.Ts.Oganessian Octupole Correlations in Neutron-Rich 145, 147La Nuclei: Coriolis-limit-coupling bands with aligned h11/2 Proton RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 145,147La deduced high-spin levels, possible J, π, B(E1)/B(E2), octupole correlations. Cranked shell model analysis. Gammasphere array.
doi: 10.1103/PhysRevC.59.1316
1999ZH31 Phys.Rev. C60, 051304 (1999) S.J.Zhu, J.H.Hamilton, A.V.Ramayya, E.F.Jones, J.K.Hwang, M.G.Wang, X.Q.Zhang, P.M.Gore, L.K.Peker, G.Drafta, B.R.S.Babu, W.C.Ma, G.L.Long, L.Y.Zhu, C.Y.Gan, L.M.Yang, M.Sakhaee, M.Li, J.K.Deng, T.N.Ginter, C.J.Beyer, J.Kormicki, J.D.Cole, R.Aryaeinejad, M.W.Drigert, J.O.Rasmussen, S.Asztalos, I.Y.Lee, A.O.Macchiavelli, S.Y.Chu, K.E.Gregorich, M.F.Mohar, G.M.Ter-Akopian, A.V.Daniel, Yu.Ts.Oganessian, R.Donangelo, M.A.Stoyer, R.W.Lougheed, K.J.Moody, J.F.Wild, S.G.Prussin, J.Kliman, H.C.Griffin Octupole Correlations in Neutron-Rich 143, 145Ba and a Type of Superdeformed Band in 145Ba RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 143,145Ba deduced high-spin levels, J, π, B(E1)/B(E2), possible stable octupole deformation. Gammasphere array.
doi: 10.1103/PhysRevC.60.051304
1998HA65 Nuovo Cim. 111A, 633 (1998) J.H.Hamilton, E.F.Jones, P.M.Gore, A.V.Ramayya, R.S.Dodder, C.J.Beyer, J.K.Hwang, X.Q.Zhang, S.J.Zhu, A.P.de Lima, J.Kormicki, J.D.Cole, R.Aryaeinejad, W.C.Ma, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, J.O.Rasmussen, S.J.Asztalos, I.Y.Lee, A.O.Macchiavelli, M.A.Stoyer, R.W.Lougheed, S.G.Prussin, R.Donangelo A New Phenomenon-Shifted Identical Bands and New Region of Stable Octupole Deformation NUCLEAR STRUCTURE Nd, Sm, Gd, Dy, Hf, Yb; analyzed rotational bands transition energies; deduced shifted identical bands. 107,109Mo; analyzed levels, J, π; deduced stable octupole deformation.
1998HW02 J.Phys.(London) G24, L9 (1998) J.K.Hwang, A.V.Ramayya, J.H.Hamilton, L.K.Peker, J.Kormicki, B.R.S.Babu, T.N.Ginter, C.J.Beyer, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.O.Rasmussen, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, A.O.Macchiavelli, R.W.Macleod, J.Gilat, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, M.W.Drigert, M.A.Stoyer, L.A.Bernstein, R.W.Lougheed, K.J.Moody, S.G.Prussin, H.C.Griffin, R.Donangelo Close Doublet Structures in 103Mo, 109,111Ru, and Neighbours: Rotation-alignment for the half-filled h11/2 subshell ( Question ) RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 103,105Mo, 109,111Ru deduced levels, band structure, possible J, π, configurations, evidence for rotation alignment. Comparison with other nuclei.
doi: 10.1088/0954-3899/24/5/009
1998HW04 Phys.Rev. C57, 2250 (1998); Erratum Phys.Rev. C58, 3013 (1998) J.K.Hwang, A.V.Ramayya, J.H.Hamilton, L.K.Peker, J.Kormicki, B.R.S.Babu, T.N.Ginter, C.J.Beyer, J.O.Rasmussen, J.Gilat, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, A.O.Macchiavelli, R.W.Macleod, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, M.W.Drigert, M.A.Stoyer, L.A.Bernstein, R.W.Lougheed, K.J.Moody, S.G.Prussin, H.C.Griffin, R.Donangelo, S.J.Zhu Identification of the γ Transitions in Tc and Cs Products of 252Cf Fission and Possible (7/2)+ [413] Bands in 105-109Tc Isotopes RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 105Tc deduced high-spin levels, J, π, rotational bands. 106,107,108,109Tc deduced levels, possible J, π. 139,140,141,142,143Cs deduced levels.
doi: 10.1103/PhysRevC.57.2250
1998RA09 Phys.Rev. C57, 2370 (1998) A.V.Ramayya, J.H.Hamilton, J.K.Hwang, L.K.Peker, J.Kormicki, B.R.S.Babu, T.N.Ginter, A.Sandulescu, A.Florescu, F.Carstoiu, W.Greiner, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.O.Rasmussen, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, A.O.Macchiavelli, R.W.Macleod, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, M.W.Drigert, M.A.Stoyer, L.A.Bernstein, R.W.Lougheed, K.J.Moody, S.G.Prussin, S.J.Zhu, H.C.Griffin, R.Donangelo Cold (Neutronless) α Ternary Fission of 252Cf RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin; deduced α-associated ternary fission isotopic yields.
doi: 10.1103/PhysRevC.57.2370
1998ZH12 Phys.Rev. C57, 2040 (1998); Erratum Phys.Rev. C58, 3012 (1998) X.Q.Zhang, J.H.Hamilton, A.V.Ramayya, L.K.Peker, J.K.Hwang, E.F.Jones, J.Kormicki, C.J.Beyer, P.M.Gore, B.R.S.Babu, T.N.Ginter, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, I.Y.Lee, A.O.Macchiavelli, R.W.Macleod, J.O.Rasmussen, J.Gilat, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, Y.X.Dardenne, M.W.Drigert, M.A.Stoyer, J.F.Wild, J.A.Becker, L.A.Bernstein, R.W.Lougheed, K.J.Moody, R.Donangelo, S.G.Prussin, H.C.Griffin, S.J.Zhu Identification of New Negative-Parity Levels in 152,154Nd RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 152,154Nd deduced high-spin levels, J, π, negative-parity bands.
doi: 10.1103/PhysRevC.57.2040
1997DO20 Nuovo Cim. 110A, 949 (1997) R.S.Dodder, E.F.Jones, J.H.Hamilton, A.V.Ramayya, P.Gore, C.J.Beyer, A.P.De Lima, J.K.Hwang, X.Q.Zhang, S.J.Zhu, Q.H.Lu, T.Ginter, B.R.S.Babu, M.G.Wang, J.Kormicki, J.K.Deng, D.Shi, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, M.W.Drigert, W.C.Ma, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, J.O.Rasmussen, S.J.Asztalos, I.Y.Lee, A.O.Machiavelli, M.A.Stoyer, R.W.Lougheed, Y.X.Dardenne, S.G.Prussin, R.Donangelo Identical and Shifted Identical Bands RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-, (X-ray)γ-coin. 156,158,160Sm, 160,162Gd deduced levels, J, π, identical bands features.
doi: 10.1007/BF03035931
1997HA64 Prog.Part.Nucl.Phys. 38, 273 (1997) J.H.Hamilton, A.V.Ramayya, J.K.Hwang, J.Kormicki, B.R.S.Babu, A.Sandulescu, A.Florescu, W.Greiner, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, S.J.Zhu, M.G.Wang, T.Ginter, J.K.Deng, W.C.Ma, G.S.Popeko, Q.H.Lu, E.Jones, R.Dodder, P.Gore, W.Nazarewicz, J.O.Rasmussen, S.Asztalos, I.Y.Lee, S.Y.Chu, K.E.Gregorich, A.O.Macchiavelli, M.F.Mohar, S.Prussin, M.A.Stoyer, R.W.Lougheed, K.J.Moody, J.F.Wild, L.A.Bernstein, J.A.Becker, J.D.Cole, R.Aryaeinejad, Y.X.Dardenne, M.W.Drigert, K.Butler-Moore, R.Donangelo, H.C.Griffin New Cold and Ultra Hot Binary and Cold Ternary Spontaneous Fission Modes for 252Cf and New Band Structures with Gammasphere RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-, (X-ray)γ-coin, prompt neutron multiplicity following binary, ternary fission; deduced fragments isotopic yields. 142,143,144,145,146,148Ba, 140Xe, 144Ce, 99,100,102Zr, 98,100Sr, 112,114,116Pd, 156,158,160Sm deduced high-spin levels, J, π, rotational bands features. 108,110,112Ru, 148,150,152Ce, 146,148,150,152,154Nd, 140Ba, 98Sr, 104Zr deduced rotational bands features. Gammasphere array.
doi: 10.1016/S0146-6410(97)00037-9
1997HW02 Int.J.Mod.Phys. E6, 331 (1997) J.K.Hwang, A.V.Ramayya, J.H.Hamilton, J.Kormicki, L.K.Peker, B.R.S.Babu, T.N.Ginter, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, I.Y.Lee, A.O.Macchiavelli, R.W.Macleod, J.O.Rasmussen, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, Y.X.Dardenne, M.W.Drigert, M.A.Stoyer, J.F.Wild, J.A.Becker, L.A.Bernstein, R.W.Lougheed, K.J.Moody, R.Donangelo, S.G.Prussin, H.C.Griffin Identification of the ν3/2-[521] Band in 153Nd and the γ-Transitions in 149Nd RADIOACTIVITY 252Cf(SF); measured γγ-coin; deduced E2 transition energies in N=93 isotones, N=89 isotones Eγ. 149Nd deduced high-spin level associated transitions. 153Nd deduced high-spin levels, band structure, signature splitting related features, moment of inertia. Other data input.
doi: 10.1142/S0218301397000226
1997HW03 Phys.Rev. C56, 1344 (1997) J.K.Hwang, A.V.Ramayya, J.H.Hamilton, L.K.Peker, J.Kormicki, B.R.S.Babu, T.N.Ginter, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.O.Rasmussen, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, A.O.Macchiavelli, R.W.Macleod, J.Gilat, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, M.W.Drigert, M.A.Stoyer, Y.X.Dardenne, J.A.Becker, L.A.Bernstein, R.W.Lougheed, K.J.Moody, S.G.Prussin, H.C.Griffin, R.Donangelo Identification of 109Mo and Possible Octupole Correlations in 107,109Mo RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin. 107,109Mo deduced high-spin levels, J, π, B(E1)/B(E2), configurations, octupole deformation.
doi: 10.1103/PhysRevC.56.1344
1997RA39 Nuovo Cim. 110A, 1073 (1997) A.V.Ramayya, J.H.Hamilton, J.K.Hwang, L.K.Peker, J.Kormicki, B.R.S.Babu, T.N.Ginter, A.Sandulescu, A.Florescu, F.Carstoiu, W.Greiner, G.M.Ter-Akopian, Yu.Ts.Oganessian, A.V.Daniel, W.C.Ma, P.G.Varmette, J.O.Rasmussen, S.J.Asztalos, S.Y.Chu, K.E.Gregorich, A.O.Macchiavelli, R.W.MacLeod, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, M.W.Drigert, M.A.Stoyer, L.A.Bernstein, R.W.Lougheed, K.J.Moody, S.G.Prussin, S.J.Zhu, H.C.Griffin, R.Donangelo Cold Binary and Ternary Fragmentations in Spontaneous Fission of 252Cf RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ, γγ-coin; deduced fragment isotopic yields, binary, α-associated ternary events features.
doi: 10.1007/BF03035948
1996BA34 Phys.Rev. C54, 568 (1996) B.R.S.Babu, S.J.Zhu, A.V.Ramayya, J.H.Hamilton, L.K.Peker, M.G.Wang, T.N.Ginter, J.Kormicki, W.C.Ma, J.D.Cole, R.Aryaeinejad, K.Butler-Moore, Y.X.Dardenne, M.W.Drigert, G.M.Ter-Akopian, Yu.Ts.Oganessian, J.O.Rasmussen, S.Asztalos, I.Y.Lee, A.O.Macchiavelli, S.Y.Chu, K.E.Gregorich, M.F.Mohar, S.Prussin, M.A.Stoyer, R.W.Lougheed, K.J.Moody, J.F.Wild Identification of γ Transitions in 147Ba, 149Ce, and 151,153Nd RADIOACTIVITY 252Cf(SF); measured γγγ-, γ(X-ray)-, γγ(X-ray)-, γγ-coin. 147Ba, 151,153Nd, 149Ce deduced high-spin levels, J, π, configuration, band structure.
doi: 10.1103/PhysRevC.54.568
1996DA16 Phys.Rev. C54, 206 (1996) Y.X.Dardenne, R.Aryaeinejad, S.J.Asztalos, B.R.S.Babu, K.Butler-Moore, S.Y.Chu, J.D.Cole, M.W.Drigert, K.E.Gregorich, J.H.Hamilton, J.Kormicki, I.Y.Lee, R.W.Lougheed, Q.H.Lu, W.-C.Ma, M.F.Mohar, K.J.Moody, S.G.Prussin, A.V.Ramayya, J.O.Rasmussen, M.A.Stoyer, J.F.Wild Observation of Cold Fission in 242Pu Spontaneous Fission RADIOACTIVITY 242Pu(SF); measured γγ-coin following fission; deduced relative yields for Zr-Xe, Sr-Ba, Mo-Te isotope pairs.
doi: 10.1103/PhysRevC.54.206
1996LA12 Phys.Rev. C54, 620 (1996) Yu.A.Lazarev, Yu.V.Lobanov, Yu.Ts.Oganessian, V.K.Utyonkov, F.Sh.Abdullin, A.N.Polyakov, J.Rigol, I.V.Shirokovsky, Yu.S.Tsyganov, S.Iliev, V.G.Subbotin, A.M.Sukhov, G.V.Buklanov, B.N.Gikal, V.B.Kutner, A.N.Mezentsev, K.Subotic, J.F.Wild, R.W.Lougheed, K.J.Moody α Decay of 273110: Shell closure at N = 162 NUCLEAR REACTIONS 244Pu(34S, X), E=190 MeV; measured Eα, Iα; deduced production σ for 273Ds. RADIOACTIVITY 273Ds(α) [from 244Pu(34S, X), E=190 MeV]; measured Eα, Iα, T1/2.
doi: 10.1103/PhysRevC.54.620
1995BU14 Phys.Rev. C52, 1339 (1995) K.Butler-Moore, R.Aryaeinejad, J.D.Cole, Y.Dardenne, R.G.Greenwood, J.H.Hamilton, A.V.Ramayya, W.-C.Ma, B.R.S.Babu, J.O.Rasmussen, M.A.Stoyer, S.Y.Chu, K.E.Gregorich, M.Mohar, S.Asztalus, S.G.Prussin, K.J.Moody, R.W.Lougheed, J.F.Wild Evidence of Unique-Parity Band Structure in Neutron-Rich Odd-A Ru Isotopes RADIOACTIVITY 252Cf(SF); measured γγγ-, γγ-, γ(X-ray), (X-ray)(X-ray)-coin following fission fragment decay. 109,111Ru deduced transitions, γ-multipolarity, levels, J, π. Models comparison.
doi: 10.1103/PhysRevC.52.1339
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, T1/2.
doi: 10.1103/PhysRevLett.75.1903
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 T1/2. On-line gas chromatography.
1995ZH34 Phys.Lett. 357B, 273 (1995) S.J.Zhu, Q.H.Lu, J.H.Hamilton, A.V.Ramayya, L.K.Peker, M.G.Wang, W.C.Ma, B.R.S.Babu, T.N.Ginter, J.Kormicki, D.Shi, J.K.Deng, W.Nazarewicz, J.O.Rasmussen, M.A.Stoyer, S.Y.Chu, K.E.Gregorich, M.F.Mohar, S.Asztalos, S.G.Prussin, J.D.Cole, R.Aryaeinejad, Y.K.Dardenne, M.Drigert, K.J.Moody, R.W.Lougheed, J.F.Wild, N.R.Johnson, I.Y.Lee, F.K.McGowan, G.M.Ter-Akopian, Yu.Ts.Oganessian Octupole Deformation in 142,143Ba and 144Ce: New band structures in neutron-rich Ba-isotopes RADIOACTIVITY 252Cf(SF); 242Pu(SF); measured γγ-, γγγ-coin following fission fragment decay. 142,143,144,145,146,147Ba, 144Ce deduced high-spin levels, J, π, band structure, shape features, B(λ) in some cases.
doi: 10.1016/0370-2693(95)00900-6
1994DA41 Proc.Intern.Conf.Nuclear Data for Science and Technology, Gatlinburg, Tennesse, 9-13 May, 1994, J.K.Dickens, Ed., American Nuclear Society, Vol.1, p.245 (1994) Y.Danon, M.S.Moore, P.E.Koehler, R.W.Lougheed, R.W.Hoff, N.W.Hill Measurement and analysis of the neutron-induced fission cross section s of 247Cm, 250Cf and 254Es NUCLEAR REACTIONS 247Cm(n, n), 247Cm(n, f), 250Cf(n, f), 254Es(n, f), E=-8.8E-4 eV-9.8 keV; measured products; deduced σ, σ(E), resonance parameters. Data were imported from EXFOR entry 13646. Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13646. 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 T1/2, SF-decay upper limits. 262Rf [from 266Sg(α-decay)]; measured T1/2.
doi: 10.1103/PhysRevLett.73.624
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, T1/2. 262Rf(SF) [from 266Sg decay]; measured T1/2. Comparison with model predictions.
doi: 10.1016/0925-8388(94)90881-8
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, 254No 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
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
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 T1/2 limit.
doi: 10.1103/PhysRevC.46.2624
1991DA19 Nucl.Sci.Eng. 109, 341 (1991) Y.Danon, R.E.Slovacek, R.C.Block, R.W.Lougheed, R.W.Hoff, M.S.Moore Fission Cross-Section Measurements of 247Cm, 254Es, and 250Cf from 0.1 eV to 80 keV NUCLEAR REACTIONS 247Cm, 254Es, 250Cf(n, F), E ≤ 80 keV; measured fission σ(E). 248Cm deduced resonance widths.
doi: 10.13182/NSE91-A23859
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
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
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
1988SA18 Phys.Rev. C37, 2371 (1988) J.-L.Salicio, S.Drissi, M.Gasser, J.Kern, H.G.Borner, G.G.Colvin, K.Schreckenbach, R.W.Hoff, R.W.Lougheed Level Structure of the Doubly-Odd 242Am Nucleus NUCLEAR REACTIONS 241Am(n, γ), (n, e-), E=thermal; measured Eγ, Iγ. 242Am levels deduced J, π, δ. Nilsson model.
doi: 10.1103/PhysRevC.37.2371
1987WH01 Phys.Rev. C35, 81 (1987) D.H.White, H.G.Borner, R.W.Hoff, K.Schreckenbach, W.F.Davidson, T.von Egidy, D.D.Warner, P.Jeuch, G.Barreau, W.R.Kane, M.L.Stelts, R.E.Chrien, R.F.Casten, R.G.Lanier, R.W.Lougheed, R.T.Kouzes, R.A.Naumann, R.Dewberry Nuclear Structure of 231Th from Neutron Capture and (d, p) Reaction Measurements NUCLEAR REACTIONS 230Th(n, γ), E=thermal, 2 keV; 230Th(d, p), E=20 MeV; measured Eγ, Iγ, I(ce), σ(θp), σ(Ep). 231Th deduced levels, J, π, rotational bands, Nilsson assignments, K. Enriched target, curved crystal, Q3D spectrometer.
doi: 10.1103/PhysRevC.35.81
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
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
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
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
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
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
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
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
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
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
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
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 T1/2(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, T1/2(SF), fission branch estimate. Fast tape system.
doi: 10.1103/PhysRevC.31.1801
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
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
1984HO02 Phys.Rev. C29, 618 (1984) R.W.Hoff, T.von Egidy, R.W.Lougheed, D.H.White, H.G.Borner, K.Schreckenbach, G.Barreau, D.D.Warner Levels of 244Cm Populated by the Beta Decay of 10-h 244gAm and 26-min 244mAm RADIOACTIVITY 244Am(β-); 244mAm(β-), (EC) [from 243Am(n, F), E=thermal]; measured Eγ, Iγ, I(ce). 244Cm deduced levels, J, π, ICC, γ-multipolarity, B(E0)/B(E2).
doi: 10.1103/PhysRevC.29.618
1984VO07 Phys.Rev. C29, 1243 (1984) T.von Egidy, R.W.Hoff, R.W.Lougheed, D.H.White, H.G.Borner, K.Schreckenbach, D.D.Warner, G.Barreau, P.Hungerford Nuclear Structure of 244Am Investigated with the (n, γ) Reaction NUCLEAR REACTIONS 243Am(n, γ), E=thermal; measured Eγ, Iγ, I(ce). 244Am deduced levels, J, π, rotational bands, Nilsson assignment, K.
doi: 10.1103/PhysRevC.29.1243
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
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 244,246,248,250,251Bk, 246,248,250,251,252,253,254Cf, 252,253,254,255,256Es, 252,253,254,255,256Fm, 255,256,257,258Md; deduced dominant transfer reaction deexcitation channel.
doi: 10.1103/PhysRevLett.48.852
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
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
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
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
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
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
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
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
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
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
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
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 T1/2.
doi: 10.1103/PhysRevLett.33.1490
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
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 T1/2, α/SF ratio.
doi: 10.1016/0022-1902(73)80176-9
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
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 T1/2.
doi: 10.1103/PhysRevLett.26.523
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
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
1970WO14 J.Opt.Soc.Amer. 60, 1297 (1970) E.F.Worden, R.G.Gutmacher, R.W.Lougheed, J.G.Conway, R.J.Mehlhorn Hyperfine Structure in the 253Es Emission Spectrum. II. Nuclear Spin, Nuclear Magnetic Dipole Moment, and Energy Levels of Es II NUCLEAR MOMENTS 253Es; measured a, B; deduced J, μ.
doi: 10.1364/JOSA.60.001297
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.
1968LO11 Priv.Comm.(1968) NUCLEAR STRUCTURE 255Es, 256Es; measured not abstracted; deduced nuclear properties.
1968WO07 J.Opt.Soc.Am. 58, 998 (1968) E.F.Worden, R.G.Gutmacher, R.W.Lougheed, J.E.Evans, J.G.Conway Hyperfine Structure in the 253Es Emission Spectrum NUCLEAR STRUCTURE 253Es; measured not abstracted; deduced nuclear properties.
doi: 10.1364/JOSA.58.000998
1966FU13 Phys.Rev. 152, 1046 (1966) S.C.Fultz, J.T.Caldwell, B.L.Berman, R.L.Bramblett, M.A.Kelly, H.D.Wilson, M.S.Coops, R.W.Lougheed, J.E.Evans, R.W.Hoff Measurement of the Average Neutron Yield Per Fission for Am-242m NUCLEAR REACTIONS, Fission 233,235U, 242Am(n, F), E = thermal; measured neutrons/fission.
doi: 10.1103/PhysRev.152.1046
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