NSR Query Results
Output year order : Descending NSR database version of April 25, 2024. Search: Author = R.A.Henderson Found 57 matches. 2024TA05 Nucl.Data Sheets 193, 153 (2024) A.S.Tamashiro, J.T.Harke, J.G.Duarte, Y.Mishnayot, S.W.Padgett, G.Slavik, S.Burcher, N.Harward, N.Gharibyan, R.A.Henderson, L.R.Greenwood, B.D.Pierson, J.M.Goda, J.A.Bounds, D.K.Hayes, C.J.Palmer 239Pu Fission Spectrum Cumulative Fission Product Yield Measurement Using Godiva IV Critical Assembly NUCLEAR REACTIONS 239Pu(n, F)85mKr/87Kr/88Kr/89Rb/91Sr/92Sr/93Y/95Zr/97Zr/99Mo/103Ru/105Ru/105Rh/127Sn/128Sn/127Sb/129Sb/130Sb/131Sb/131mTe/132Te/133mTe/134Te/131I/133I/135I/138Cs/139Ba/140Ba/141Ba/141La/142La/143Ce/146Pr/149Nd/151Pm, E<10 MeV; measured reaction products, Eγ, Iγ; deduced precise integral measurement of fast neutron-induced fission product yields, cumulative fission product yield . Comparison with England and Rider's evaluation. Godiva IV is a critical assembly composed of unreflected highly enriched uranium (HEU) metal fuel.
doi: 10.1016/j.nds.2024.01.007
2019DE11 Eur.Phys.J. A 55, 25 (2019) H.M.Devaraja, S.Heinz, O.Beliuskina, S.Hofmann, C.Hornung, G.Munzenberg, D.Ackermann, M.Gupta, Y.K.Gambhir, R.A.Henderson, F.P.Hessberger, A.V.Yeremin, B.Kindler, B.Lommel, J.Maurer, K.J.Moody, K.Nishio, A.G.Popeko, M.A.Stoyer, D.A.Shaughnessy Population of nuclides with A ≥ 98 in multi-nucleon transfer reactions of 48Ca + 248Cm NUCLEAR REACTIONS 248Cm(48Ca, x), E=265.4, 270.2 MeV; measured production σ for directly populated nuclei 252,254Cf, 254m,256mEs and 260No[the last reaction used was 18O+254Es at 99 MeV] and for 254,256Fm from parent decay using SHIP selector to select the fusion products and (in another run) target-like transfer reaction products, Compared with published data. RADIOACTIVITY 252,254,256Cf, 256Fm, 256,257,259,260Md, 259No, 262,263Lr(SF), (α); calculated T1/2, SF branching ratio.
doi: 10.1140/epja/i2019-12696-3
2018CH34 Phys.Lett. B 782, 652 (2018) A.Chyzh, P.Jaffke, C.Y.Wu, R.A.Henderson, P.Talou, I.Stetcu, J.Henderson, M.Q.Buckner, S.A.Sheets, R.Hughes, B.Wang, J.L.Ullmann, S.Mosby, T.A.Bredeweg, A.C.Hayes-Sterbenz, J.M.O'Donnell Dependence of the prompt fission γ-ray spectrum on the entrance channel of compound nucleus: Spontaneous vs. neutron-induced fission RADIOACTIVITY 240,242Pu(SF); measured decay products, Eγ, Iγ; deduced prompt γ-ray spectra. NUCLEAR REACTIONS 239,241Pu(n, F), E ∼ 100 keV; measured reaction products, Eγ, Iγ; deduced prompt fission γ-ray energy spectra. Comparison with Monte Carlo Hauser-Feshbach statistical model for the neutron-induced fission.
doi: 10.1016/j.physletb.2018.06.006
2018DE08 Nucl.Data Sheets 148, 322 (2018) M.Devlin, J.A.Gomez, K.J.Kelly, R.C.Haight, J.M.O'Donnell, T.N.Taddeucci, H.Y.Lee, S.M.Mosby, B.A.Perdue, N.Fotiades, J.L.Ullmann, C.Y.Wu, B.Bucher, M.Q.Buckner, R.A.Henderson, D.Neudecker, M.C.White, P.Talou, M.E.Rising, C.J.Solomon The Prompt Fission Neutron Spectrum of 235U(n, f) below 2.5 MeV for Incident Neutrons from 0.7 to 20 MeV NUCLEAR REACTIONS 235U(n, F), E=0.7-20 MeV; measured reaction products, En, In, TOF; deduced prompt fission neutron spectrum, σ(E).
doi: 10.1016/j.nds.2018.02.008
2018MO06 Nucl.Data Sheets 148, 312 (2018) S.Mosby, T.A.Bredeweg, A.Couture, M.Jandel, T.Kawano, J.Ullmann, R.A.Henderson, C.Y.Wu 239Pu(n, γ) from 10 eV to 1.3 MeV NUCLEAR REACTIONS 239Pu(n, γ), E=0.00001-1.3 MeV; measured reaction products, Eγ, Iγ; deduced σ and uncertainties. Detector for Advanced Neutron Capture Experiments (DANCE). Comparison with theoretical calculations.
doi: 10.1016/j.nds.2018.02.007
2018MO08 Phys.Rev. C 97, 041601 (2018) S.Mosby, T.A.Bredeweg, A.Couture, M.Jandel, T.Kawano, J.L.Ullmann, R.A.Henderson, C.Y.Wu Unifying measurement of 239Pu(n, γ) in the keV to MeV energy regime NUCLEAR REACTIONS 239Pu(n, γ), E=0.001-1.3 MeV; measured Eγ, Iγ, σ(E), using the Detector for Advanced Neutron Capture Experiments (DANCE) at LANL-LANSCE facility. Comparison with previous experimental results, evaluated data in ENDF/B-VII.1, ENDF/B-VIII.0, JENDL-4, and with theoretical calculations using CoH3 for the M1 scissors mode.
doi: 10.1103/PhysRevC.97.041601
2017BU04 Phys.Rev. C 95, 024610 (2017) M.Q.Buckner, C.Y.Wu, R.A.Henderson, B.Bucher, N.Wimer, A.Chyzh, T.A.Bredeweg, B.Baramsai, A.Couture, M.Jandel, S.Mosby, J.L.Ullmann Measurement of the 242mAm neutron-induced reaction cross sections NUCLEAR REACTIONS 242mAm(n, γ), (n, F), E=0.023-0.98 eV; measured Eγ, Iγ, σ(E) for both reactions using DANCE array of 160 BaF2 crystals at LANSCE-LLNL facility. Comparison with previous experimental data.
doi: 10.1103/PhysRevC.95.024610
2017BU10 Phys.Rev. C 95, 061602 (2017) M.Q.Buckner, C.Y.Wu, R.A.Henderson, B.Bucher, N.Wimer, A.Chyzh, T.A.Bredeweg, B.Baramsai, A.Couture, M.Jandel, S.Mosby, J.L.Ullmann Comprehensive 242mAm neutron-induced reaction cross sections and resonance parameters NUCLEAR REACTIONS 242mAm(n, γ), (n, F), E=0.1 eV to 1 MeV; measured Eγ, Iγ, neutron capture and neutron-induced fission σ(E) using DANCE array of 160 equal-volume BaF2 crystals at the LANSCE-LLNL Lujan Neutron Scattering Center; deduced neutron-induced resonance energies, Γγ, Γn, and Γf of 106 resonances with energies between 0.15 and 45 eV by analyzing spectra using the R-matrix code SAMMY. Comparison with previous experimental data, and with evaluated data in ENDF/B-VII.1.
doi: 10.1103/PhysRevC.95.061602
2017CL01 Phys.Rev. C 95, 064612 (2017) S.D.Clarke, B.M.Wieger, A.Enqvist, R.Vogt, J.Randrup, R.C.Haight, H.Y.Lee, B.A.Perdue, E.Kwan, C.Y.Wu, R.A.Henderson, S.A.Pozzi Measurement of the energy and multiplicity distributions of neutrons from the photofission of 235U NUCLEAR REACTIONS 235U(γ, F), E<800 MeV white photon source; measured E(n), I(n), neutron time-of-flight spectrum, prompt fission neutron spectrum, neutron multiplicity distribution, average energy of correlated photofission neutron pairs as function of the angle between detectors at the WNR-15L beam line at LANSCE-LANL. Comparison with simulations using FREYA and MCNPX-POLIMI codes.
doi: 10.1103/PhysRevC.95.064612
2016BU09 Phys.Rev. C 93, 044613 (2016) M.Q.Buckner, C.Y.Wu, R.A.Henderson, B.Bucher, A.Chyzh, T.A.Bredeweg, B.Baramsai, A.Couture, M.Jandel, S.Mosby, J.M.O'Donnell, J.L.Ullmann Absolute measurement of the 242Pu neutron-capture cross section NUCLEAR REACTIONS 242Pu(n, γ), E=thermal-several hundred keV; measured Eγ, Iγ, summed γ-ray energy versus cluster multiplicity using LANSC-DANCE at LLNL facility, absolute σ(E) from thermal to ≈40 keV neutrons; deduced energies, Γγ and Γn of neutron resonances from 2.662 eV to 495.0 eV. Comparison with literature and evaluated data in ENDF/B-VII.1.
doi: 10.1103/PhysRevC.93.044613
2016HE13 Eur.Phys.J. A 52, 278 (2016) S.Heinz, H.M.Devaraja, O.Beliuskina, V.Comas, S.Hofmann, C.Hornung, G.Munzenberg, D.Ackermann, M.Gupta, R.A.Henderson, F.P.Hessberger, B.Kindler, B.Lommel, R.Mann, J.Maurer, K.J.Moody, K.Nishio, A.G.Popeko, D.A.Shaughnessy, M.A.Stoyer, A.V.Yeremin Synthesis of new transuranium isotopes in multinucleon transfer reactions using a velocity filter NUCLEAR REACTIONS 248Cm(48Ca, x), E=5.3 MeV/nucleon; measured Eα, Iα, 225Pa velocity spectrum; deduced, identified 90 known isotopes and 5 new ones (3 produced directly in the reaction, 2 via precursor decays), their production σ.
doi: 10.1140/epja/i2016-16278-7
2016HO06 Eur.Phys.J. A 52, 116 (2016) S.Hofmann, S.Heinz, R.Mann, J.Maurer, G.Munzenberg, S.Antalic, W.Barth, L.Dahl, K.Eberhardt, R.Grzywacz, J.H.Hamilton, R.A.Henderson, J.M.Kenneally, B.Kindler, I.Kojouharov, R.Lang, B.Lommel, K.Miernik, D.Miller, K.J.Moody, K.Morita, K.Nishio, A.G.Popeko, J.B.Roberto, J.Runke, K.P.Rykaczewski, C.Scheidenberger, D.A.Shaughnessy, M.A.Stoyer, P.Thorle-Pospiech, K.Tinschert, N.Trautmann, J.Uusitalo, A.V.Yeremin Remarks on the fission barriers of super-heavy nuclei RADIOACTIVITY 285Fl, 291,292,293Lv, 294Og(α); calculated mass excess, Qα, shell correction energies for complete α-decay chains. Z=118, 120(α); deduced estimates for synthesis σ. Compared with calculations using macroscopic-microscopic models.
doi: 10.1140/epja/i2016-16116-0
2016HO09 Eur.Phys.J. A 52, 180 (2016) S.Hofmann, S.Heinz, R.Mann, J.Maurer, G.Munzenberg, S.Antalic, W.Barth, H.G.Burkhard, L.Dahl, K.Eberhardt, R.Grzywacz, J.H.Hamilton, R.A.Henderson, J.M.Kenneally, B.Kindler, I.Kojouharov, R.Lang, B.Lommel, K.Miernik, D.Miller, K.J.Moody, K.Morita, K.Nishio, A.G.Popeko, J.B.Roberto, J.Runke, K.P.Rykaczewski, S.Saro, C.Scheidenberger, H.J.Schott, D.A.Shaughnessy, M.A.Stoyer, P.Thorle-Pospiech, K.Tinschert, N.Trautmann, J.Uusitalo, A.V.Yeremin Review of even element super-heavy nuclei and search for element
doi: 10.1140/epja/i2016-16180-4
2016LA02 Phys.Rev. C 93, 014323 (2016); Pub.Note Phys.Rev. C 100, 039901 (2019) T.A.Laplace, F.Zeiser, M.Guttormsen, A.C.Larsen, D.L.Bleuel, L.A.Bernstein, B.L.Goldblum, S.Siem, F.L.Bello Garotte, J.A.Brown, L.C.Campo, T.K.Eriksen, F.Giacoppo, A.Gorgen, K.Hadynska-Klek, R.A.Henderson, M.Klintefjord, M.Lebois, T.Renstrom, S.J.Rose, E.Sahin, T.G.Tornyi, G.M.Tveten, A.Voinov, M.Wiedeking, J.N.Wilson, W.Younes Statistical properties of 243Pu, and 242Pu(n, γ) cross section calculation NUCLEAR REACTIONS 242Pu(d, p), E=12 MeV; measured Eγ, particle spectra, (particle)γ-coin using CACTUS γ-spectrometer and SiRi (Silicon Ring) for particle detection at Oslo Cyclotron Laboratory; deduced γ-strength functions (γSF) in the quasicontinuum using the Oslo method, level density, centroid energy, strength and γSF of M1-scissors resonance, sum-rule estimates. 242Pu(n, γ), E=0.001-5 MeV; calculated σ(n, γ) using TALYS and level density and γSF parameters from the present work. Comparison with published data, and ENDF/B-VII.1, JENDL-4.0 and TENDL2014.
doi: 10.1103/PhysRevC.93.014323
2015DE22 Phys.Lett. B 748, 199 (2015) H.M.Devaraja, S.Heinz, O.Beliuskina, V.Comas, S.Hofmann, C.Hornung, G.Munzenberg, K.Nishio, D.Ackermann, Y.K.Gambhir, M.Gupta, R.A.Henderson, F.P.Hessberger, J.Khuyagbaatar, B.Kindler, B.Lommel, K.J.Moody, J.Maurer, R.Mann, A.G.Popeko, D.A.Shaughnessy, M.A.Stoyer, A.V.Yeremin Observation of new neutron-deficient isotopes with Z≥92 in multinucleon transfer reactions NUCLEAR REACTIONS 248Cm(48Ca, X)216U/212Th/208Fr/219Np/223Am/215Pa/211Ac/207Fr/229Am/225Np/213Fr/233Bk/225Np, E=270 MeV; measured reaction fragments, Eα, Iα; deduced five new isotopes σ, T1/2. Comparison with available data.
doi: 10.1016/j.physletb.2015.07.006
2014CH30 Phys.Rev. C 90, 014602 (2014) A.Chyzh, C.Y.Wu, E.Kwan, R.A.Henderson, T.A.Bredeweg, R.C.Haight, A.C.Hayes-Sterbenz, H.Y.Lee, J.M.O'Donnell, J.L.Ullmann Total prompt γ-ray emission in fission of 235U, 239, 241Pu, and 252Cf NUCLEAR REACTIONS 235U, 239,241Pu(n, F), E=0.025 eV-100 keV; measured Eγ, Iγ of prompt γ rays, fission fragments using DANCE detector array for γ rays and parallel-plate avalanche counter for fission fragments at LLNL facility; deduced γ-ray multiplicity distributions, mean values of the total prompt γ-ray energy. Discussed γ heating in nuclear reactors. Comparison with previous experimental results and ENDF/B-VII.1 evaluation. RADIOACTIVITY 252Cf(SF); measured Eγ, Iγ of prompt γ rays, fission fragments using DANCE detector array for γ rays and parallel-plate avalanche counter for fission fragments at LLNL facility; deduced γ-ray multiplicity distributions, mean values of the total prompt γ-ray energy. Comparison with previous experimental results.
doi: 10.1103/PhysRevC.90.014602
2014KW05 Nucl.Data Sheets 119, 221 (2014) E.Kwan, C.Y.Wu, R.C.Haight, H.Y.Lee, T.A.Bredeweg, A.Chyzh, M.Devlin, N.Fotiades, J.M.Gostic, R.A.Henderson, M.Jandel, A.Laptev, R.O.Nelson, J.M.O'Donnell, B.A.Perdue, T.N.Taddeucci, J.L.Ullmann, S.A.Wender Prompt Fission γ-rays Measured Using Liquid Scintillators NUCLEAR REACTIONS 235U(n, F), E=1-20 MeV; measured prompt Eγ, Iγ, γγ-coin using FIGARO; deduced γ-ray spectrum, unfolded using SVD and iterative Bayesian techniques. Compared to 235Cf(SF). RADIOACTIVITY 235Cf(SF); measured prompt Eγ, Iγ, γγ-coin using FIGARO; deduced γ-ray spectrum, unfolded using SVD and iterative Bayesian techniques. Compared to 235U(n, F).
doi: 10.1016/j.nds.2014.08.061
2014PE14 Nucl.Data Sheets 119, 371 (2014) B.A.Perdue, T.N.Taddeucci, R.C.Haight, T.Bredeweg, M.Devlin, N.Fotiades, M.Jandel, A.Laptev, H.Y.Lee, R.O.Nelson, J.M.O'Donnell, J.L.Ullmann, S.A.Wender, C.Y.Wu, E.Kwan, A.Chyzh, R.A.Henderson, J.M.Gostic Development of an Array of Liquid Scintillators to Measure the Prompt Fission Neutron Spectrum at LANSCE
doi: 10.1016/j.nds.2014.08.102
2013CH15 Phys.Rev. C 87, 034620 (2013) A.Chyzh, C.Y.Wu, E.Kwan, R.A.Henderson, J.M.Gostic, T.A.Bredeweg, A.Couture, R.C.Haight, A.C.Hayes-Sterbenz, M.Jandel, H.Y.Lee, J.M.O'Donnell, J.L.Ullmann Systematics of prompt γ-ray emission in fission NUCLEAR REACTIONS 235U, 239,241Pu(n, F), E=thermal to 1 MeV; measured prompt Eγ, Iγ, charged particles, (particle)γ(t), γ multiplicity, total γ-ray energy vs cluster multiplicity, TOF using DANCE array and PPACs at LANSCE facility. Possible population of pygmy resonances. Comparison of measured γ-ray multiplicity distributions with iterative Bayesian and SVD methods.
doi: 10.1103/PhysRevC.87.034620
2013CH48 Phys.Rev. C 88, 044607 (2013) A.Chyzh, C.Y.Wu, E.Kwan, R.A.Henderson, J.M.Gostic, T.A.Bredeweg, A.Couture, R.C.Haight, H.Y.Lee, J.M.O'Donnell, J.L.Ullmann Precision measurement of the 238Pu (n, γ) cross section NUCLEAR REACTIONS 238Pu(n, γ), E=thermal-30 keV; measured Eγ, Iγ, summed-γ spectra, γ-ray multiplicity, precise σ(E) using DANCE array at LANSCE facility; deduced resonance parameters, energies, γ and neutron widths from 2.87 eV to 407 eV energy region. Comparison with evaluated data in ENDF/B-VII.1.
doi: 10.1103/PhysRevC.88.044607
2013OG01 Phys.Rev. C 87, 014302 (2013) Yu.Ts.Oganessian, F.Sh.Abdullin, S.N.Dmitriev, J.M.Gostic, J.H.Hamilton, R.A.Henderson, M.G.Itkis, K.J.Moody, A.N.Polyakov, A.V.Ramayya, J.B.Roberto, K.P.Rykaczewski, R.N.Sagaidak, D.A.Shaughnessy, I.V.Shirokovsky, M.A.Stoyer, N.J.Stoyer, V.G.Subbotin, A.M.Sukhov, Yu.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin Investigation of the 243Am + 48Ca reaction products previously observed in the experiments on elements 113, 115, and 117 NUCLEAR REACTIONS 243Am(48Ca, xn)287Mc/288Mc/289Mc, E=239.8-253.8 MeV; measured evaporation residues (ER), α, and SF fragments, ER-α and ER-SF correlated events, σ at U400 cyclotron facility of FLNR, JINR. 249Bk(48Ca, xn)293Ts/294Ts; 237Np(48Ca, 3n)282Nh; analyzed data. RADIOACTIVITY 287,288,289Mc, 283,284,285Nh, 279,280Rg, 275,276Mt, 271,272Bh(α); 267,268Db, 281Rg(SF); measured T1/2. 293,297Ts, 290Mc, 282,286Nh, 278,282Rg, 274,278Mt, 270,274Bh(α); 266,270Db(SF); analyzed and compared previous half-life data.
doi: 10.1103/PhysRevC.87.014302
2013OG03 Phys.Rev. C 87, 034605 (2013) Yu.Ts.Oganessian, V.K.Utyonkov, F.Sh.Abdullin, S.N.Dmitriev, R.Graeger, R.A.Henderson, M.G.Itkis, Yu.V.Lobanov, A.N.Mezentsev, K.J.Moody, S.L.Nelson, A.N.Polyakov, M.A.Ryabinin, R.N.Sagaidak, D.A.Shaughnessy, I.V.Shirokovsky, M.A.Stoyer, N.J.Stoyer, V.G.Subbotin, K.Subotic, A.M.Sukhov, Yu.S.Tsyganov, A.Turler, A.A.Voinov, G.K.Vostokin, P.A.Wilk, A.Yakushev Synthesis and study of decay properties of the doubly magic nucleus 270Hs in the 226Ra + 48Ca reaction NUCLEAR REACTIONS 226Ra(48Ca, 4n)270Hs, E=229, 234, 241 MeV; measured reaction products, σ(E), ER-α correlations using U400 cyclotron and Dubna gas-filled recoil separator at FLNR, JINR facility. Relatively high production cross section due to high fission barrier arising from nuclear shell effects. RADIOACTIVITY 270Hs(α)[from 226Ra(48Ca, 4n), E=229, 234, 241 MeV]; 266Sg(SF)[from 270Hs α decay]; measured Eα, evaporation residues-α correlations, T1/2. Comparison with previous studies. Systematics of α decay and SF half-lives for N=148-172 No, Rf, Sg, and Hs nuclei.
doi: 10.1103/PhysRevC.87.034605
2013OG04 Phys.Rev. C 87, 054621 (2013) Yu.Ts.Oganessian, F.Sh.Abdullin, C.Alexander, J.Binder, R.A.Boll, S.N.Dmitriev, J.Ezold, K.Felker, J.M.Gostic, R.K.Grzywacz, J.H.Hamilton, R.A.Henderson, M.G.Itkis, K.Miernik, D.Miller, K.J.Moody, A.N.Polyakov, A.V.Ramayya, J.B.Roberto, M.A.Ryabinin, K.P.Rykaczewski, R.N.Sagaidak, D.A.Shaughnessy, I.V.Shirokovsky, M.V.Shumeiko, M.A.Stoyer, N.J.Stoyer, V.G.Subbotin, A.M.Sukhov, Yu.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin Experimental studies of the 249Bk+48Ca reaction including decay properties and excitation function for isotopes of element 117, and discovery of the new isotope 277Mt NUCLEAR REACTIONS 249Bk(48Ca, 3n), (48Ca, 4n), E=243.7, 255.7, 259.8 MeV; measured σ(E) for production of 293,294Ts using DGFRS separator at FLNR, JINR facility. Comparison with theoretical calculations. RADIOACTIVITY 293,294Ts, 289,290Mc, 285,286Nh, 281,282Rg, 278Mt, 274Bh(α)[from α decay chains of 293Ts and 294Ts formed in 249Bk(48Ca, 3n), (48Ca, 4n), E=243.7, 255.7, 259.8 MeV]; measured Eα, Iα, half-lives. 270Db, 277Mt, 281Rg(SF); measured decay energy, half-lives. 281Rg(α), (SF); measured α/SF branching ratio. 277Mt; identified new isotope. Systematics of Q(α), SF- and α-decay half-lives for isotopes in Z=104-117, N=150-177 regions.
doi: 10.1103/PhysRevC.87.054621
2012CH07 Phys.Rev. C 85, 021601 (2012) A.Chyzh, C.Y.Wu, E.Kwan, R.A.Henderson, J.M.Gostic, T.A.Bredeweg, R.C.Haight, A.C.Hayes-Sterbenz, M.Jandel, J.M.O'Donnell, J.L.Ullmann Evidence for the stochastic aspect of prompt γ emission in spontaneous fission RADIOACTIVITY 252Cf(SF); measured prompt γ spectra, and γ-ray multiplicity distributions, total γ-ray energy distribution using 4π γ-ray calorimeter DANCE array at LANSCE facility. Data analyzed by iterative Bayesian and SVD methods. Stochastic features of the prompt γ emission in spontaneous fission at higher multiplicities.
doi: 10.1103/PhysRevC.85.021601
2012HO12 Eur.Phys.J. A 48, 62 (2012) S.Hofmann, S.Heinz, R.Mann, J.Maurer, J.Khuyagbaatar, D.Ackermann, S.Antalic, W.Barth, M.Block, H.G.Burkhard, V.F.Comas, L.Dahl, K.Eberhardt, J.Gostic, R.A.Henderson, J.A.Heredia, F.P.Hessberger, J.M.Kenneally, B.Kindler, I.Kojouharov, J.V.Kratz, R.Lang, M.Leino, B.Lommel, K.J.Moody, G.Munzenberg, S.L.Nelson, K.Nishio, A.G.Popeko, J.Runke, S.Saro, D.A.Shaughnessy, M.A.Stoyer, P.Thorle-Pospiech, K.Tinschert, N.Trautmann, J.Uusitalo, P.A.Wilk, A.V.Yeremin The reaction 48Ca + 248Cm → 296116* studied at the GSI-SHIP NUCLEAR REACTIONS 248Cm(48Ca, X)292Lv/293Lv, E=265.4, 270.2 MeV; measured reaction products, Eα, Iα(t) from 116 decay, 116 fission using SHIP velocity filter. 288,289Fl, 284,285Cn, 281Ds, 277Hs; deduced σ, T1/2, ground state quadrupole deformation, quasiparticle excitations, Q-values for different α decay chains. Comparison with other data.
doi: 10.1140/epja/i2012-12062-1
2012KW01 Nucl.Instrum.Methods Phys.Res. A688, 55 (2012) E.Kwan, C.Y.Wu, R.C.Haight, H.Y.Lee, T.A.Bredeweg, A.Chyzh, M.Devlin, N.Fotiades, J.M.Gostic, R.A.Henderson, M.Jandel, A.Laptev, R.O.Nelson, J.M.O'Donnell, B.A.Perdue, T.N.Taddeucci, J.L.Ullmann, S.A.Wender Prompt energy distribution of 235U(n, f)γ at bombarding energies of 1-20 MeV NUCLEAR REACTIONS 235U(n, F), E=1-20 MeV; measured reaction products, Eγ, Iγ; deduced prompt γ-rays distribution. Comparison with GEANT4 simulations. RADIOACTIVITY 252Cf(SF); measured decay products, Eγ, Iγ; deduced prompt γ-rays distribution. Comparison with GEANT4 simulations.
doi: 10.1016/j.nima.2012.06.003
2012OG02 Phys.Rev.Lett. 108, 022502 (2012) Yu.Ts.Oganessian, F.Sh.Abdullin, S.N.Dmitriev, J.M.Gostic, J.H.Hamilton, R.A.Henderson, M.G.Itkis, K.J.Moody, A.N.Polyakov, A.V.Ramayya, J.B.Roberto, K.P.Rykaczewski, R.N.Sagaidak, D.A.Shaughnessy, I.V.Shirokovsky, M.A.Stoyer, V.G.Subbotin, A.M.Sukhov, Yu.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin New Insights into the 243Am+48Ca Reaction Products Previously Observed in the Experiments on Elements 113, 115, and 117 NUCLEAR REACTIONS 243Am(48Ca, 3n)288Mc, E=240 MeV; 243Am, 249Bk(48Ca, X)289Mc, E not given; measured reaction products. 291Mc, 291Mc, 297Ts; deduced σ. Comparison with other data. RADIOACTIVITY 288Mc, 284Nh, 280Rg, 276Mt, 272Bh(α), 268Db(SF); 289Mc, 285Nh, 281Rg(α); 293Ts, 289Mc, 285Nh, 281Rg(α); measured decay products, Eα, Iα; deduced decay chains, strong support for the elements of 113 and 115.
doi: 10.1103/PhysRevLett.108.022502
2012OG06 Phys.Rev.Lett. 109, 162501 (2012) Yu.Ts.Oganessian, F.Sh.Abdullin, C.Alexander, J.Binder, R.A.Boll, S.N.Dmitriev, J.Ezold, K.Felker, J.M.Gostic, R.K.Grzywacz, J.H.Hamilton, R.A.Henderson, M.G.Itkis, K.Miernik, D.Miller, K.J.Moody, A.N.Polyakov, A.V.Ramayya, J.B.Roberto, M.A.Ryabinin, K.P.Rykaczewski, R.N.Sagaidak, D.A.Shaughnessy, I.V.Shirokovsky, M.V.Shumeiko, M.A.Stoyer, N.J.Stoyer, V.G.Subbotin, A.M.Sukhov, Yu.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin Production and Decay of the Heaviest Nuclei 293, 294117 and 294118 NUCLEAR REACTIONS 249Bk(48Ca, X)293Ts/294Ts, E=247, 252 MeV; 249Cf(48Ca, 3n)294Og, E=245, 251 MeV; measured reaction products, Eα, Iα; deduced average σ, T1/2. Comparison with available data. RADIOACTIVITY 294Og, 293,294Ts, 290Lv, 289,290Mc(α), 286Fl(α), (SF), 285,286Nh(α), 282Cn(SF), 281Rg(SF), 282Rg(α), 278Mt, 274Bh(α), 270Db(SF); measured decay products, Eα, Iα; deduced discovery z=117 element, T1/2, decay branch, Q-values. Comparison with available data.
doi: 10.1103/PhysRevLett.109.162501
2012TH05 Nucl.Sci.Eng. 171, 85 (2012) I.J.Thompson, Y.M.X.M.Dardenne, J.M.Kenneally, A.Robertson, L.E.Ahle, C.A.Hagmann, R.A.Henderson, D.Vogt, C.-Y.Wu, W.Younes Evaluations of Fission Chain Yields for 239Pu from Fission-Spectrum Neutrons NUCLEAR REACTIONS 239Pu(n, F)95Zr/97Zr/95Nb/97Nb/99Mo/144Ce/146Nd/147Nd/148Nd/150Nd/155Eu/156Eu/140Ba/90Sr/103Ru/131I/140La, E<10 MeV; analyzed available data; deduced fission chain yields.
doi: 10.13182/NSE10-101
2011HA63 J.Phys.:Conf.Ser. 312, 082026 (2011) J.H.Hamilton, Yu.Ts.Oganessian, F.Sh.Abdullin, P.D.Bailey, D.Benker, M.E.Bennett, S.N.Dmitriev, J.Ezold, R.A.Henderson, M.G.Itkis, Yu.V.Lobanov, A.N.Mezentsev, K.J.Moody, S.L.Nelson, A.N.Polyakov, C.E.Porter, A.V.Ramayya, F.Riley, J.B.Roberto, M.A.Ryabinin, K.P.Rykaczewski, R.N.Sagaidak, D.A.Shaughnessy, I.V.Shirokovsky, M.A.Stoyer, V.G.Subbotin, R.Sudowe, A.M.Sukhov, Tu.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin, P.A.Wilk Synthesis of the New Element with Z=117 NUCLEAR REACTIONS 249Bk(48Ca, 4n)293Ts, E=252 MeV;249Bk(48Ca, 3n)294Ts, E=252 MeV; measured Eα, α-decay chains, ER, fission fragments; deduced new element 117, T1/2.
doi: 10.1088/1742-6596/312/4/082026
2011OG04 Phys.Rev. C 83, 054315 (2011) Yu.Ts.Oganessian, F.Sh.Abdullin, P.D.Bailey, D.E.Benker, M.E.Bennett, S.N.Dmitriev, J.G.Ezold, J.H.Hamilton, R.A.Henderson, M.G.Itkis, Yu.V.Lobanov, A.N.Mezentsev, K.J.Moody, S.L.Nelson, A.N.Polyakov, C.E.Porter, A.V.Ramayya, F.D.Riley, J.B.Roberto, M.A.Ryabinin, K.P.Rykaczewski, R.N.Sagaidak, D.A.Shaughnessy, I.V.Shirokovsky, M.A.Stoyer, V.G.Subbotin, R.Sudowe, A.M.Sukhov, R.Taylor, Yu.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin, P.A.Wilk Eleven new heaviest isotopes of elements Z = 105 to Z = 117 identified among the products of 249Bk+48Ca reactions RADIOACTIVITY 293,294Ts(α)[from 249Bk(48Ca, xn), E=252 MeV]; 274Bh, 278Mt, 282Rg, 286Nh, 290Mc(α) [from α decay chain of 294Ts]; 281Rg, 285Nh, 289Mc(α)[from α decay chain of 293Ts]; 270Db(SF), (α), (EC)[from α decay of 274Bh]; 281Rg(SF)[from α decay of 285Nh]; measured Eα, half-lives and β decay energies of residues; deduced Q(α). Systematics of α decay half-lives, Q(α) values and β+, EC half-lives of Z=106-118, N=150-175, A=260-295 isotopes. NUCLEAR REACTIONS 249Bk(48Ca, xn)293Ts/294Ts, E=252 MeV; measured production cross sections.
doi: 10.1103/PhysRevC.83.054315
2010EI01 Radiochim.Acta 98, 133 (2010) R.Eichler, N.V.Aksenov, Yu.V.Albin, A.V.Belozerov, G.A.Bozhikov, V.I.Chepigin, S.N.Dmitriev, R.Dressler, H.W.Gaggeler, V.A.Gorshkov, R.A.Henderson, A.M.Johnsen, J.M.Kenneally, V.Ya.Lebedev, O.N.Malyshev, K.J.Moody, Yu.Ts.Oganessian, O.V.Petrushkin, D.Piguet, A.G.Popeko, P.Rasmussen, A.Serov, D.A.Shaughnessy, S.V.Shishkin, A.V.Shutov, M.A.Stoyer, N.J.Stoyer, A.I.Svirikhin, E.E.Tereshatov, G.K.Vostokin, M.Wegrzecki, P.A.Wilk, D.Wittwer, A.V.Yeremin Indication for a volatile element 114 RADIOACTIVITY 287,288Fl(α); measured atomic properties of element 114; deduced volatility. Comparison with Hg, At, and element 112 (Cn).
doi: 10.1524/ract.2010.1705
2010OG01 Phys.Rev.Lett. 104, 142502 (2010) Yu.Ts.Oganessian, F.Sh.Abdullin, P.D.Bailey, D.E.Benker, M.E.Bennett, S.N.Dmitriev, J.G.Ezold, J.H.Hamilton, R.A.Henderson, M.G.Itkis, Yu.V.Lobanov, A.N.Mezentsev, K.J.Moody, S.L.Nelson, A.N.Polyakov, C.E.Porter, A.V.Ramayya, F.D.Riley, J.B.Roberto, M.A.Ryabinin, K.P.Rykaczewski, R.N.Sagaidak, D.A.Shaughnessy, I.V.Shirokovsky, M.A.Stoyer, V.G.Subbotin, R.Sudowe, A.M.Sukhov, Yu.S.Tsyganov, V.K.Utyonkov, A.A.Voinov, G.K.Vostokin, P.A.Wilk Synthesis of a New Element with Atomic Number Z = 117 NUCLEAR REACTIONS 249Bk(48Ca, 4n), E=252 MeV; 249Bk(48Ca, 3n) , E=247 MeV;measured Eα, Iα, α-α correlations. 293,294Ts; deduced σ, decay chains, T1/2. RADIOACTIVITY 293,294Ts, 289,290Mc, 285,286Nh, 282Rg, 278Mt, 274Bh(α); measured Eα, Iα, and half-lives. 270Db, 281Rg(SF); measured TKE, and T1/2.
doi: 10.1103/PhysRevLett.104.142502
2010WI14 Nucl.Instrum.Methods Phys.Res. B268, 28 (2010) D.Wittwer, F.Sh.Abdullin, N.V.Aksenov, Yu.V.Albin, G.A.Bozhikov, S.N.Dmitriev, R.Dressler, R.Eichler, H.W.Gaggeler, R.A.Henderson, S.Hubener, J.M.Kenneally, V.Ya.Lebedev, Yu.V.Lobanov, K.J.Moody, Yu.Ts.Oganessian, O.V.Petrushkin, A.N.Polyakov, D.Piguet, P.Rasmussen, R.N.Sagaidak, A.Serov, I.V.Shirokovsky, D.A.Shaughnessy, S.V.Shishkin, A.M.Sukhov, M.A.Stoyer, N.J.Stoyer, E.E.Tereshatov, Yu.S.Tsyganov, V.K.Utyonkov, G.K.Vostokin, M.Wegrzecki, P.A.Wilk Gas phase chemical studies of superheavy elements using the Dubna gas-filled recoil separator - Stopping range determination RADIOACTIVITY 289Fl, 285Cn(α) [from 244Pu(48Ca, 3n)289Fl, E=265 MeV]; measured decay products, Eα, Iα; deduced α-decay chains.
doi: 10.1016/j.nimb.2009.09.062
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
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
1994KR03 Phys.Rev. C49, 1859 (1994) S.A.Kreek, H.L.Hall, K.E.Gregorich, R.A.Henderson, J.D.Leyba, K.R.Czerwinski, B.Kadkhodayan, M.P.Neu, C.D.Kacher, T.M.Hamilton, M.R.Lane, E.R.Sylwester, A.Turler, D.M.Lee, M.J.Nurmia, D.C.Hoffman Electron-Capture Delayed Fission Properties of the New Isotope 238Bk NUCLEAR REACTIONS 241Am(α, 7n), E=75 MeV; measured residue production σ. 238Bk deduced EC-delayed fission probability, T1/2. Isotope obtained by chemical separation, identification from daughter activity measurements. RADIOACTIVITY 238Bk(EC) [from 241Am(α, 7n), E=75 MeV]; measured EC-delayed fission (fragment)(X-ray)-coin, T1/2; deduced delayed fission probability.
doi: 10.1103/PhysRevC.49.1859
1994KR13 Phys.Rev. C50, 2288 (1994) S.A.Kreek, H.L.Hall, K.E.Gregorich, R.A.Henderson, J.D.Leyba, K.R.Czerwinski, B.Kadkhodayan, M.P.Neu, C.D.Kacher, T.M.Hamilton, M.R.Lane, E.R.Sylwester, A.Turler, D.M.Lee, M.J.Nurmia, D.C.Hoffman Electron-Capture Delayed Fission Properties of 228Np RADIOACTIVITY 228Np(EC), (α) [from 233U(p, 6n), E=50 MeV]; measured fission (fragment)(X-ray)-coin; deduced EC-delayed fission T1/2, fission probability, fragment mass yield distribution, EC/α-decay ratio. NUCLEAR REACTIONS, ICPND 233U(p, 6n), E=50 MeV; measured (particle)(X-ray)-coin; deduced residual production σ.
doi: 10.1103/PhysRevC.50.2288
1992GA31 Radiochim.Acta 57, 93 (1992) H.W.Gaggeler, D.T.Jost, J.Kovacs, U.W.Scherer, A.Weber, D.Vermeulen, A.Turler, K.E.Gregorich, R.A.Henderson, K.R.Czerwinski, B.Kadkhodayan, D.M.Lee, M.Nurmia, D.C.Hoffman, J.V.Kratz, M.K.Gober, H.P.Zimmermann, M.Schadel, W.Bruchle, E.Schimpf, I.Zvara Gas Phase Chromatography Experiments with Bromides for Tantalum and Element 105 RADIOACTIVITY 262,263Db(SF) [from 249Bk(18O, X), E=114 MeV]; measured decay products, Eα, Iα; deduced T1/2, σ.
1992GR02 Phys.Rev. C45, 1058 (1992) K.E.Gregorich, H.L.Hall, R.A.Henderson, J.D.Leyba, K.R.Czerwinski, S.A.Kreek, B.A.Kadkhodayan, M.J.Nurmia, D.M.Lee, D.C.Hoffman Fission Branch in 259Lr and Confirmation of 258Lr and 259Lr Mass Assignments RADIOACTIVITY 259,258Lr [from 248Cm(15N, 4n), (15N, 5n), E=93 MeV]; 255,254Fm(α) [from 255,254Md decay following 259,258Lr(α-decay)]; measured α-spectra, αα-correlations. 258Lr deduced T1/2, mass assignment. 259Lr deduced T1/2, SF-decay branch, mass assignment.
doi: 10.1103/PhysRevC.45.1058
1992KA08 Radiochim.Acta 56, 1 (1992) B.Kadkhodayan, R.A.Henderson, H.L.Hall, J.D.Leyba, K.R.Czerwinski, S.A.Kreek, N.J.Hannink, K.E.Gregorich, D.M.Lee, M.J.Nurmia, D.C.Hoffman Identification of 253Md NUCLEAR REACTIONS 243Am(13C, 3n), E=66-74 MeV; measured α-spectra, production σ; deduced evidence for 253Md. RADIOACTIVITY 253Md(α) [from 243Am(13C, 3n), E=66-74 MeV]; measured α-spectra, 252,253Fm growth curves, T1/2.
doi: 10.1524/ract.1992.56.1.1
1992TU04 Phys.Rev. C46, 1364 (1992) A.Turler, H.R.von Gunten, J.D.Leyba, D.C.Hoffman, D.M.Lee, K.E.Gregorich, D.A.Bennett, R.M.Chasteler, C.M.Gannett, H.L.Hall, R.A.Henderson, M.J.Nurmia Actinide Production from the Interactions of 40Ca and 44Ca with 248Cm and a Comparison with the 48Ca + 248Cm System NUCLEAR REACTIONS 248Cm(40Ca, X), (44Ca, X), E=231-323 MeV; measured production σ(E) for 227Th to 249Cm; deduced isotopic distribution widths.
doi: 10.1103/PhysRevC.46.1364
1991LE19 Phys.Rev. C44, 1850 (1991) J.D.Leyba, R.A.Henderson, H.L.Hall, K.R.Czerwinski, B.A.Kadkhodayan, S.A.Kreek, E.K.Brady, K.E.Gregorich, D.M.Lee, M.J.Nurmia, D.C.Hoffman Excitation Functions for Actinides Produced in the Interactions of 31P with 248Cm NUCLEAR REACTIONS, ICPND 248Cm(31P, X), E=174-239 MeV; measured σ(E) for Bk, Cf, Es, Fm isotopes production. Potential energy surface calculations comparison.
doi: 10.1103/PhysRevC.44.1850
1990HA02 Phys.Rev. C41, 618 (1990) H.L.Hall, K.E.Gregorich, R.A.Henderson, C.M.Gannett, R.B.Chadwick, J.D.Leyba, K.R.Czerwinski, B.Kadkhodayan, S.A.Kreek, D.M.Lee, M.J.Nurmia, D.C.Hoffman, C.E.A.Palmer, P.A.Baisden Electron-Capture-Delayed Fission Properties of 234Am RADIOACTIVITY 234Am(EC) [from 237Np(α, 7n), E=75 MeV]; measured EC-delayed fission T1/2, probability, (X-ray)(fragment)-correlation, (X-ray)γ-coin, Eγ, Iγ, Eα, Iα; deduced α-branching. Rotating wheel system. NUCLEAR REACTIONS 237Np(α, 7n), E=75 MeV; measured X-ray spectra; deduced residual production σ.
doi: 10.1103/PhysRevC.41.618
1990HA28 Phys.Rev. C42, 1480 (1990) H.L.Hall, K.E.Gregorich, R.A.Henderson, C.M.Gannett, R.B.Chadwick, J.D.Leyba, K.R.Czerwinski, B.Kadkhodayan, S.A.Kreek, N.J.Hannink, D.M.Lee, M.J.Nurmia, D.C.Hoffman, C.E.A.Palmer, P.A.Baisden Electron-Capture-Delayed Fission Properties of 232Am RADIOACTIVITY 232Am(EC) [from 237Np(α, 9n), E=99 MeV]; measured EC-delayed fission T1/2, (fragment)(X-ray)-, (fragment)γ-coin; deduced delayed-fission probability. Multiple 237Np targets, rotating wheel system. NUCLEAR REACTIONS, ICPND 237Np(α, 9n), E=99 MeV; measured (particle)(X-ray)-, (particle)(γ)-coin following residue fission; deduced residue production σ.
doi: 10.1103/PhysRevC.42.1480
1990HO03 Phys.Rev. C41, 631 (1990) D.C.Hoffman, D.M.Lee, K.E.Gregorich, M.J.Nurmia, R.B.Chadwick, K.B.Chen, K.R.Czerwinski, C.M.Gannett, H.L.Hall, R.A.Henderson, B.Kadkhodayan, S.A.Kreek, J.D.Leyba Spontaneous Fission Properties of 2.9-s 256No RADIOACTIVITY 256No(α), (SF) [from 248Cm(12C, X), E=71 MeV]; measured T1/2, Eα, Qα, α/SF ratio, (fragment)(fragment) kinetic energies, total kinetic energy distribution; deduced fragment mass distributions. NUCLEAR REACTIONS, ICPND 248Cm(12C, 4n), E=71 MeV; measured Eα, Iα; deduced residual production σ.
doi: 10.1103/PhysRevC.41.631
1990LE09 Phys.Rev. C41, 2092 (1990) J.D.Leyba, R.A.Henderson, H.L.Hall, C.M.Gannett, R.B.Chadwick, K.R.Czerwinski, B.A.Kadkhodayan, S.A.Kreek, G.R.Haynes, K.E.Gregorich, D.M.Lee, M.J.Nurmia, D.C.Hoffman Heavy Actinide Production from the Interactions of 40Ar with 248Cm and a Comparison with the 44Ca-248Cm System NUCLEAR REACTIONS, ICPND 248Cm(40Ar, X), E=207, 225, 245, 266, 286 MeV; measured σ(E) for production of Bk, Cf, Es, Fm Isotopes. Radiochemical separations.
doi: 10.1103/PhysRevC.41.2092
1989BR24 Nucl.Phys. A501, 477 (1989) E.Browne, B.Sur, E.B.Norman, H.L.Hall, R.A.Henderson, K.T.Lesko, R.M.Larimer, D.C.Hoffman Nuclear Penetration Effects in 233U RADIOACTIVITY 233Pa(β-) [from 237Np(α decay)]; measured Eγ, Iγ, I(ce), Iβ. 233U deduced transitions ICC, nuclear penetration parameter λ.
doi: 10.1016/0375-9474(89)90142-5
1989HA10 Phys.Rev. C39, 1866 (1989) H.L.Hall, K.E.Gregorich, R.A.Henderson, D.M.Lee, D.C.Hoffman, M.E.Bunker, M.M.Fowler, P.Lysaight, J.W.Starner, J.B.Wilhelmy β-Delayed Fission from 256mEs and the Level Scheme of 256Fm RADIOACTIVITY 256mEs(β-) [from 254Es(t, p), E=16 MeV]; measured Eγ, Iγ, βγ-, γγ-coin, β(fragment)(θ) following β-delayed fission; deduced β-delayed fission evidence. 256Fm deduced isomer, T1/2, fission characteristics, other levels, J, π.
doi: 10.1103/PhysRevC.39.1866
1989HA27 Nucl.Phys. A500, 90 (1989) Y.Hatsukawa, T.Ohtsuki, K.Sueki, H.Nakahara, I.Kohno, M.Magara, N.Shinohara, H.L.Hall, R.A.Henderson, C.M.Gannett, J.A.Leyba, R.B.Chadwick, K.E.Gregorich, D.Lee, M.J.Nurmia, D.C.Hoffman Alpha Decay Properties of Light Einsteinium Isotopes RADIOACTIVITY 249,248,247,246,245,243Es(α) [from 249Cf(p, xn), 238U(14N, xn), 237Np(12C, xn), 233U(14N, xn)]; measured T1/2, Eα, Iα. 245,243,241,239Bk deduced levels, J, π, moment of inertia. Calculated α transition probability.
doi: 10.1016/0375-9474(89)90131-0
1989HA37 Phys.Rev.Lett. 63, 2548 (1989) H.L.Hall, K.E.Gregorich, R.A.Henderson, C.M.Gannett, R.B.Chadwick, J.D.Leyba, K.R.Czerwinski, B.Kadkhodayan, S.A.Kreek, D.M.Lee, M.J.Nurmia, D.C.Hoffmann Direct Proof of Electron-Capture-Delayed-Fission Process RADIOACTIVITY 234Am(EC), (β+) [from 237Np(α, X), E=70-73 MeV]; measured delayed fission (K X-ray)-, fission (fragment)(γ)-coin; deduced T1/2, evidence for (EC)-delayed fission process. 234Pu levels deduced I(K X-ray).
doi: 10.1103/PhysRevLett.63.2548
1989KR17 Radiochim.Acta 48, 121 (1989) J.V.Kratz, H.P.Zimmermann, U.W.Scherer, M.Schadel, W.Bruchle, K.E.Gregorich, C.M.Gannett, H.L.Hall, R.A.Henderson, D.M.Lee, J.D.Leyba, M.J.Nurmia, D.C.Hoffman, H.Gaggeler, D.Jost, U.Baltensperger, N.-Q.Ya, A.Turler, Ch.Lienert Chemical Properties of Element 105 in Aqueous Solution: Halide complex formation and anion exchange into triisoctyl amine NUCLEAR REACTIONS 249Bk(18O, 5n), E=114 MeV; measured Eα, Iα; deduced residual nucleus production.
1988BR41 Inorganica chimica acta 146, 267 (1988) W.Bruchle, M.Schadel, U.W.Scherer, J.V.Kratz, K.E.Gregorich, D.Lee, M.Nurmia, R.M.Chasteler, H.L.Hall, R.A.Henderson, D.C.Hoffman The Hydration Enthalpies of Md3+ and Lr3+ NUCLEAR REACTIONS 249Bk(18O, X)260Lr, E=117 MeV; measured reaction products, Eα, Iα; deduced yields, extraction procedures.
doi: 10.1016/s0020-1693(00)80619-2
1988GR30 Radiochim.Acta 43, 223 (1988) K.E.Gregorich, R.A.Henderson, D.M.Lee, M.J.Nurmia, R.M.Chasteler, H.L.Hall, D.A.Bennett, C.M.Gannett, R.B.Chadwick, J.D.Leyba, D.C.Hoffman, G.Herrmann Aqueous Chemistry of Element 105 NUCLEAR REACTIONS 249Bk(18O, 5n), E=117 MeV; measured α-spectra following residual decay; deduced 262Db fission branch, fission, α-activity production σ. RADIOACTIVITY 262Db(α), (SF) [from 249Bk(18O, 5n), E=117 MeV]; 258Lr [from 262Db decay]; measured Eα, Iα, αα(t). 262Db deduced fission branch.
1988HO19 J.Radioanal.Nucl.Chem. 124, 135 (1988) D.C.Hoffman, R.A.Henderson, K.E.Gregorich, D.A.Bennett, R.M.Chasteler, C.M.Gannett, H.L.Hall, D.M.Lee, M.J.Nurmia, S.Cai, R.Agarwal, A.W.Charlop, Y.Y.Chu, G.T.Seaborg, R.J.Silva Atom-at-a-time radiochemical separations of the heaviest elements: Lawrencium chemistry NUCLEAR REACTIONS 249Bk(18O, 3nα), E=101 MeV; measured reaction products, Eα, Iα. 260Lr; deduced σ, T1/2.
doi: 10.1007/bf02035512
1988SC24 Inorganica chimica acta 146, 249 (1988) U.W.Scherer, J.V.Kratz, M.Schadel, W.Bruchle, K.E.Gregorich, R.A.Henderson, D.Lee, M.Nurmia, D.C.Hoffman Lawrencium chemistry: no evidence for oxidation states lower than 3+ in aqueous solution NUCLEAR REACTIONS 249Bk(18O, X)249Cf/211Bi/252Fm/254Fm/255Fm/249Fm/254Md/255Md/260Lr, E=100-101 MeV; measured reaction products, Eα, Iα. 260Lr; deduced yields.
doi: 10.1016/S0020-1693(00)80616-7
1987CH30 Phys.Rev. C36, 1820 (1987) R.M.Chasteler, R.A.Henderson, D.Lee, K.E.Gregorich, M.J.Nurmia, R.B.Welch, D.C.Hoffman Excitation Functions for Production of Heavy Actinides from Interactions of 16O with 249Cf NUCLEAR REACTIONS, ICPND 249Cf(16O, X)244Bk/245Bk/246Bk/248Bk/248mBk/247Cf/248Cf/248Es/249Es/250Es/251Es/253Es/250Fm/251Fm/252Fm/253Fm/254Fm/256Fm, E=90, 96, 106, 115, 122, 139, 150 MeV; measured residual production σ(E), isotopic distributions.
doi: 10.1103/PhysRevC.36.1820
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