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NSR database version of April 11, 2024.

Search: Author = M.Schadel

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2023CO04      Phys.Rev. C 107, L021301 (2023)

D.M.Cox, A.Saamark-Roth, D.Rudolph, L.G.Sarmiento, R.M.Clark, J.L.Egido, P.Golubev, J.Heery, A.Yakushev, S.AAberg, H.M.Albers, M.Albertsson, M.Block, H.Brand, T.Calverley, R.Cantemir, B.G.Carlsson, Ch.E.Dullmann, J.Eberth, C.Fahlander, U.Forsberg, J.M.Gates, F.Giacoppo, M.Gotz, S.Gotz, R.-D.Herzberg, Y.Hrabar, E.Jager, D.Judson, J.Khuyagbaatar, B.Kindler, I.Kojouharov, J.V.Kratz, J.Krier, N.Kurz, L.Lens, J.Ljungberg, B.Lommel, J.Louko, C.-C.Meyer, A.Mistry, C.Mokry, P.Papadakis, E.Parr, J.L.Pore, I.Ragnarsson, J.Runke, M.Schadel, H.Schaffner, B.Schausten, D.A.Shaughnessy, P.Thorle-Pospiech, N.Trautmann, J.Uusitalo

Spectroscopy along flerovium decay chains. II. Fine structure in odd-A 289Fl

RADIOACTIVITY 289Fl(α) [from 244Pu(48Ca, X), E=6.02 MeV/nucleon]; 285Cn(α) [from 289Fl(α)]; 281Ds(α) [from 285Cn(α)]; 277Hs(SF) [from 281Ds(α)]; measured decay products, Eα, Iα, Eβ, Iβ αβ-coin, αα-coin, (fragment)αα-coin; deduced Q-values, T1/2, branching ratios, hindrance factor. 289Fl, 285Cn, 281Ds; deduced J, π and δ assignments based on the derived decay path. Comparison with structure calculations based on the symmetry-conserving configuration mixing theory. Gas-filled recoil separator TASCA was used to transmit, select, and focus the flerovium ions into an upgraded version of the TASISpec decay station consisting of implantation DSSD, veto DSSD and set of HPGe detectors (GSI).

doi: 10.1103/PhysRevC.107.L021301
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2023SA03      Phys.Rev. C 107, 024301 (2023)

A.Saamark-Roth, D.M.Cox, D.Rudolph, L.G.Sarmiento, M.Albertsson, B.G.Carlsson, J.L.Egido, P.Golubev, J.Heery, A.Yakushev, S.AAberg, H.M.Albers, M.Block, H.Brand, T.Calverley, R.Cantemir, R.M.Clark, Ch.E.Dullmann, J.Eberth, C.Fahlander, U.Forsberg, J.M.Gates, F.Giacoppo, M.Gotz, S.Gotz, R.-D.Herzberg, Y.Hrabar, E.Jager, D.Judson, J.Khuyagbaatar, B.Kindler, I.Kojouharov, J.V.Kratz, J.Krier, N.Kurz, L.Lens, J.Ljungberg, B.Lommel, J.Louko, C.-C.Meyer, A.Mistry, C.Mokry, P.Papadakis, E.Parr, J.L.Pore, I.Ragnarsson, J.Runke, M.Schadel, H.Schaffner, B.Schausten, D.A.Shaughnessy, P.Thorle-Pospiech, N.Trautmann, J.Uusitalo

Spectroscopy along flerovium decay chains. III. Details on experiment, analysis, 282Cn, and spontaneous fission branches

RADIOACTIVITY 290,288,286,284Fl(α)(SF) [from 244Pu(48Ca, X), E=6.02 MeV/nucleon]; 282Cn(α)(SF) [286Fl(α)]; 284Cn(α)(SF) [from 288Fl(α)]; 286Cn(α)(SF) [290Fl(α)]; 282Ds(α)(SF) [from 286Cn(α)]; 280Ds(α)(SF) [from 284Cn(α)]; measured decay products, Eα, Iα, Eβ, Iβ αβ-coin, αα-coin, (fragment)αα-coin; deduced Q-values, T1/2, branching ratios, hindrance factor. 282Cn; deduced levels, J, π, T1/2 of excited states, transition rates, monopole transition strengths. Comparison to macroscopic-microscopic finite-range liquid-drop model, self-consistent Hartree-Fock-Bogoliubov calculations and other experimental data. Gas-filled recoil separator TASCA was used to transmit, select, and focus the flerovium ions into an upgraded version of the TASISpec decay station consisting of implantation DSSD, veto DSSD and set of HPGe detectors (GSI).

doi: 10.1103/PhysRevC.107.024301
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2021SA01      Phys.Rev.Lett. 126, 032503 (2021)

A.Samark-Roth, D.M.Cox, D.Rudolph, L.G.Sarmiento, B.G.Carlsson, J.L.Egido, P.Golubev, J.Heery, A.Yakushev, S.Aberg, H.M.Albers, M.Albertsson, M.Block, H.Brand, T.Calverley, R.Cantemir, R.M.Clark, C.E.Dullmann, J.Eberth, C.Fahlander, U.Forsberg, J.M.Gates, F.Giacoppo, M.Gotz, S.Gotz, R.-D.Herzberg, Y.Hrabar, E.Jager, D.Judson, J.Khuyagbaatar, B.Kindler, I.Kojouharov, J.V.Kratz, J.Krier, N.Kurz, L.Lens, J.Ljungberg, B.Lommel, J.Louko, C.-C.Meyer, A.Mistry, C.Mokry, P.Papadakis, E.Parr, J.L.Pore, I.Ragnarsson, J.Runke, M.Schadel, H.Schaffner, B.Schausten, D.A.Shaughnessy, P.Thorle-Pospiech, N.Trautmann, J.Uusitalo

Spectroscopy along Flerovium Decay Chains: Discovery of 280Ds and an Excited State in 282Cn

RADIOACTIVITY 286,288Fl, 284Cn(α), 282Cn, 280Ds(SF) [from 242,244Pu(48Ca, X)286Fl/288Fl, E=6.021 MeV/nucleon]; measured decay products, Eα, Iα, Eβ, Iβ α-β coin.; deduced Q-values, T1/2, J, π. Comparison with theoretical calculations. The gas-filled separator TASCA at the GSI.

doi: 10.1103/PhysRevLett.126.032503
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2020KH11      Phys.Rev. C 102, 064602 (2020)

J.Khuyagbaatar, A.Yakushev, Ch.E.Dullmann, D.Ackermann, L.-L.Andersson, M.Asai, M.Block, R.A.Boll, H.Brand, D.M.Cox, M.Dasgupta, X.Derkx, A.Di Nitto, K.Eberhardt, J.Even, M.Evers, C.Fahlander, U.Forsberg, J.M.Gates, N.Gharibyan, P.Golubev, K.E.Gregorich, J.H.Hamilton, W.Hartmann, R.-D.Herzberg, F.P.Hessberger, D.J.Hinde, J.Hoffmann, R.Hollinger, A.Hubner, E.Jager, B.Kindler, J.V.Kratz, J.Krier, N.Kurz, M.Laatiaoui, S.Lahiri, R.Lang, B.Lommel, M.Maiti, K.Miernik, S.Minami, A.K.Mistry, C.Mokry, H.Nitsche, J.P.Omtvedt, G.K.Pang, P.Papadakis, D.Renisch, J.B.Roberto, D.Rudolph, J.Runke, K.P.Rykaczewski, L.G.Sarmiento, M.Schadel, B.Schausten, A.Semchenkov, D.A.Shaughnessy, P.Steinegger, J.Steiner, E.E.Tereshatov, P.Thorle-Pospiech, K.Tinschert, T.Torres De Heidenreich, N.Trautmann, A.Turler, J.Uusitalo, M.Wegrzecki, N.Wiehl, S.M.Van Cleve, V.Yakusheva

Search for elements 119 and 120

NUCLEAR REACTIONS 249Bk, 249Cf(50Ti, X)299119*/299120*, E(average)=281.5 MeV; measured evaporation residues (ERs), Eα, correlated ER-α and ER-α12-SF events using UNILAC accelerator, TASCA separator, and Focal plane detector system (FPDS) consisting of double-sided silicon strip (DSSD) detectors, and Si-strip detectors for position and time correlations of events. 295,296119, 295,296120; deduced no evidence for non-random correlated events related to 3n- or 4n-channel deexcitations of the compound nuclei 299119 and 299120, within a sensitivity limit of one event corresponding to σ=65 fb for 249Bk+50Ti reaction and σ=200 fb for 249Cf+50Ti; discussed nonobservation of Z=119 and 120 superheavy elements within the context of the fusion-evaporation reaction mechanism.

doi: 10.1103/PhysRevC.102.064602
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2019KH04      Phys.Rev. C 99, 054306 (2019)

J.Khuyagbaatar, A.Yakushev, Ch.E.Dullmann, D.Ackermann, L.-L.Andersson, M.Asai, M.Block, R.A.Boll, H.Brand, D.M.Cox, M.Dasgupta, X.Derkx, A.Di Nitto, K.Eberhardt, J.Even, M.Evers, C.Fahlander, U.Forsberg, J.M.Gates, N.Gharibyan, P.Golubev, K.E.Gregorich, J.H.Hamilton, W.Hartmann, R.-D.Herzberg, F.P.Hessberger, D.J.Hinde, J.Hoffmann, R.Hollinger, A.Hubner, E.Jager, B.Kindler, J.V.Kratz, J.Krier, N.Kurz, M.Laatiaoui, S.Lahiri, R.Lang, B.Lommel, M.Maiti, K.Miernik, S.Minami, A.Mistry, C.Mokry, H.Nitsche, J.P.Omtvedt, G.K.Pang, P.Papadakis, D.Renisch, J.Roberto, D.Rudolph, J.Runke, K.P.Rykaczewski, L.G.Sarmiento, M.Schadel, B.Schausten, A.Semchenkov, D.A.Shaughnessy, P.Steinegger, J.Steiner, E.E.Tereshatov, P.Thorle-Pospiech, K.Tinschert, T.Torres De Heidenreich, N.Trautmann, A.Turler, J.Uusitalo, D.E.Ward, M.Wegrzecki, N.Wiehl, S.M.Van Cleve, V.Yakusheva

Fusion reaction 48Ca + 249Bk leading to formation of the element Ts (Z=117)

NUCLEAR REACTIONS 249Bk(48Ca, 3n), (48Ca, 4n)293Ts/294Ts, E=252.1, 254.0, 258.0 MeV; measured reaction products, evaporation residues (ER), Eα, Iα, (ER)α-correlated decay chains, and σ using double-sided silicon strip detectors for α detection, TASCA separator for evaporation residue, and multiwire proportional counter for detection of residues at UNILAC accelerator facility of GSI. Comparison with previous experimental data for (ER)α-correlated decay chains from DGFRS-Dubna facility.

RADIOACTIVITY 294Ts, 290Mc, 286Nh, 282Rg, 278Mt, 274Bh, 270Db(α); 293Ts, 289Mc, 285Nh, 281Rg(α); 266Lr, 270Db, 277Mt, 277Hs(SF); measured Eα, Iα, SF events, half-lives. 266Lr, 270Db(α), (SF); measured half-lives and α/SF branching ratios. Comparison with previous experimental data for (ER)α-correlated decay chains from DGFRS-Dubna facility. A=200-240; A=240-260; systematics of α-decay half-lives of isotopes produced in 48Ca+249Bk and 48Ca+249Cf reactions.

doi: 10.1103/PhysRevC.99.054306
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0944. Data from this article have been entered in the XUNDL database. For more information, click here.


2018DI11      Phys.Lett. B 784, 199 (2018)

A.Di Nitto, J.Khuyagbaatar, D.Ackermann, L.-L.Andersson, E.Badura, M.Block, H.Brand, I.Conrad, D.M.Cox, Ch.E.Dullmann, J.Dvorak, K.Eberhardt, P.A.Ellison, N.E.Esker, J.Even, C.Fahlander, U.Forsberg, J.M.Gates, P.Golubev, O.Gothe, K.E.Gregorich, W.Hartmann, R.D.Herzberg, F.P.Hessberger, J.Hoffmann, R.Hollinger, A.Hubner, E.Jager, B.Kindler, S.Klein, I.Kojouharov, J.V.Kratz, J.Krier, N.Kurz, S.Lahiri, B.Lommel, M.Maiti, R.Mandl, E.Merchan, S.Minami, A.K.Mistry, C.Mokry, H.Nitsche, J.P.Omtvedt, G.K.Pang, D.Renisch, D.Rudolph, J.Runke, L.G.Sarmiento, M.Schadel, H.Schaffner, B.Schausten, A.Semchenkov, J.Steiner, P.Thorle-Pospiech, N.Trautmann, A.Turler, J.Uusitalo, D.Ward, M.Wegrzecki, P.Wieczorek, N.Wiehl, A.Yakushev, V.Yakusheva

Study of non-fusion products in the 50Ti + 249Cf reaction

NUCLEAR REACTIONS 249Cf(50Ti, X)211Po/212At/213Rn/214Fr/215Ra/222Ra/221Ra/223Ac/218Rn/224Th/219Fr/223Th/218Rn/219Fr/220Ra/214Po/219Ra/217Rn/215At, E=306 MeV; measured reaction products, Eα, Iα; deduced σ.

doi: 10.1016/j.physletb.2018.07.058
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2018SA45      Phys.Rev. C 98, 044307 (2018)

A.Saamark-Roth, L.G.Sarmiento, D.Rudolph, J.Ljungberg, B.G.Carlsson, C.Fahlander, U.Forsberg, P.Golubev, I.Ragnarsson, D.Ackermann, L.-L.Andersson, M.Block, H.Brand, D.M.Cox, A.Di Nitto, Ch.E.Dullmann, K.Eberhardt, J.Even, J.M.Gates, J.Gerl, K.E.Gregorich, C.J.Gross, R.-D.Herzberg, F.P.Hessberger, E.Jager, J.Khuyagbaatar, B.Kindler, I.Kojouharov, J.V.Kratz, J.Krier, N.Kurz, B.Lommel, A.Mistry, C.Mokry, J.P.Omtvedt, P.Papadakis, J.Runke, K.Rykaczewski, M.Schadel, H.Schaffner, B.Schausten, P.Thorle-Pospiech, N.Trautmann, T.Torres, A.Turler, A.Ward, N.Wiehl, A.Yakushev

Low-lying states in 219Ra and 215Rn: Sampling microsecond α-decaying nuclei

RADIOACTIVITY 219Ra(α)[from 243Am(48Ca, X), E=242.1, 245.0 MeV]; measured Eα, Iα, Eγ, Iγ, αγ-coin, α(x ray)-coin, α-α correlations using TASISpec at the TASCA, GSI facility. Pileup analysis and GEANT4 simulation of 219Ra to 215Rn decay. 219,219m,220,221Ra, 215,216,217Rn, 212,213Po, 219Fr, 215At(α); measured half-lives, Qα. 219Ra, 215Rn; deduced levels, J, π, isomer in 219Ra Comparison with shell model calculations and theoretical calculations of deformation, rotational states and α-decay rates, and with evaluated data in the ENSDF database.

doi: 10.1103/PhysRevC.98.044307
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2017GO06      Nucl.Phys. A961, 1 (2017)

M.Gotz, S.Gotz, J.V.Kratz, Ch.E.Dullmann, Ch.Mokry, J.Runke, P.Thorle-Pospiech, N.Wiehl, M.Schadel, J.Ballof, H.Dorrer, J.Grund, D.Huber, E.Jager, O.Keller, J.Krier, J.Khuyagbaatar, L.Lens, B.Lommel, M.Mendel, K.J.Moody, P.Scharrer, B.Schausten, D.Shaughnessy, M.Schmitt, J.Steiner, N.Trautmann, A.Yakushev, V.Yakusheva

Radiochemical study of the kinematics of multi-nucleon transfer reactions in 48Ca + 248Cm collisions 10 percent above the Coulomb barrier

NUCLEAR REACTIONS 248Cm(48Ca, x), E=262 MeV; measured multinucleon transfer reaction products, Eα, Iα (for identification of the fragments); deduced TKE vs θ, E* vs θ for target-like (trans-target ones, like Fm, Es, Cf, Bk and others) fragments using radiochemical methods.

doi: 10.1016/j.nuclphysa.2017.02.006
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2016FO10      Nucl.Phys. A953, 117 (2016)

U.Forsberg, D.Rudolph, L.-L.Andersson, A.Di Nitto, Ch.E.Dullmann, C.Fahlander, J.M.Gates, P.Golubev, K.E.Gregorich, C.J.Gross, R.-D.Herzberg, F.P.Hessberger, J.Khuyagbaatar, J.V.Kratz, K.Rykaczewski, L.G.Sarmiento, M.Schadel, A.Yakushev, S.Aberg, D.Ackermann, M.Block, H.Brand, B.G.Carlsson, D.Cox, X.Derkx, J.Dobaczewski, K.Eberhardt, J.Even, J.Gerl, E.Jager, B.Kindler, J.Krier, I.Kojouharov, N.Kurz, B.Lommel, A.Mistry, C.Mokry, W.Nazarewicz, H.Nitsche, J.P.Omtvedt, P.Papadakis, I.Ragnarsson, J.Runke, H.Schaffner, B.Schausten, Y.Shi, P.Thorle-Pospiech, T.Torres, T.Traut, N.Trautmann, A.Turler, A.Ward, D.E.Ward, N.Wiehl

Recoil-α-fission and recoil-α-α- fission events observed in the reaction 48Ca + 243Am

NUCLEAR REACTIONS 243Am(48Ca, x), E=242.1, 245.0 MeV; measured reaction products, fission products, Eα, Iα(t), αα-coin, (recoil)α-coin, En, In using He-gas filled TASCA, TASISpec based on DSSSDs, other DSSSDs; deduced correlation times, α energy spectra, 23 α-decay chains of five α's and α+3n, fragments T1/2. Discussed existence of long decay chains; compared with published results.

RADIOACTIVITY 289,288Mc, 284Nh, 280Rg, 276Mt, 272Bh(α), 268Db(SF); measured decay products, Eα, Iα; deduced T1/2. Comparison with available data.

doi: 10.1016/j.nuclphysa.2016.04.025
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2015KH09      Phys.Rev.Lett. 115, 242502 (2015)

J.Khuyagbaatar, A.Yakushev, Ch.E.Dullmann, D.Ackermann, L.L-.Andersson, M.Block, H.Brand, D.M.Cox, J.Even, U.Forsberg, P.Golubev, W.Hartmann, R.-D.Herzberg, F.P.Hessberger, J.Hoffmann, A.Hubner, E.Jager, J.Jeppsson, b.Kindler, J.V.Kratz, J.Krier, N.Kurz, B.Lommel, M.Maiti, S.Minami, A.K.Mistry, C.M.Mrosek, I.Pysmenetska, D.Rudolph, L.G.Sarmiento, H.Schaffner, M.Schadel, B.Schausten, J.Steiner, T.Torres De Heidenreich, J.Uusitalo, M.Wegrzecki, N.Wiehl, V.Yakusheva

New Short-Lived Isotope 221U and the Mass Surface Near N = 126

RADIOACTIVITY 221,222U, 218Ac(α) [from 176Yb(50Ti, X)221U/222U, E=231-255 MeV]; measured decay products, Eα, Iα. 214,215Ra, 217,218,219Th, 214Fr, 221,222U; deduced T1/2, Q-values. A fast data readout technique, comparison with FRDM95 and HFB26 calculations.

doi: 10.1103/PhysRevLett.115.242502
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2015NA19      Nucl.Phys. A944, 614 (2015)

Y.Nagame, J.V.Kratz, M.Schadel

Chemical studies of elements with Z ≥ 104 in liquid phase

doi: 10.1016/j.nuclphysa.2015.07.013
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2015RU11      J.Radioanal.Nucl.Chem. 303, 1185 (2015)

D.Rudolph, U.Forsberg, P.Golubev, L.G.Sarmiento, A.Yakushev, L.-L.Andersson, A.Di Nitto, Ch.E.Dullmann, J.M.Gates, K.E.Gregorich, C.J.Gross, R.-D.Herzberg, F.P.Hessberger, J.Khuyagbaatar, J.V.Kratz, K.Rykaczewski, M.Schadel, S.Aberg, D.Ackermann, M.Block, H.Brand, B.G.Carlsson, D.Cox, X.Derkx, K.Eberhardt, J.Even, C.Fahlander, J.Gerl, E.Jager, B.Kindler, J.Krier, I.Kojouharov, N.Kurz, B.Lommel, A.Mistry, C.Mokry, H.Nitsche, J.P.Omtvedt, P.Papadakis, I.Ragnarsson, J.Runke, H.Schaffner, B.Schausten, P.Thorle-Pospiech, T.Torres, T.Traut, N.Trautmann, A.Turler, A.Ward, D.E.Ward, N.Wiehl

Selected spectroscopic results on element 115 decay chains

RADIOACTIVITY 288Mc, 284Nh, 280Rg, 276Mt, 272Bh(α), 268Db(SF); measured decay products, Eα, Iα; deduced Q-values, level energies, branching ratios. Comparison with GEANT4 Monte-Carlo simulations.

doi: 10.1007/s10967-014-3445-y
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2014KH04      Phys.Rev.Lett. 112, 172501 (2014)

J.Khuyagbaatar, A.Yakushev, C.E.Dullmann, D.Ackermann, L.-L.Andersson, M.Asai, M.Block, R.A.Boll, H.Brand, D.M.Cox, M.Dasgupta, X.Derkx, A.Di Nitto, K.Eberhardt, J.Even, M.Evers, C.Fahlander, U.Forsberg, J.M.Gates, N.Gharibyan, P.Golubev, K.E.Gregorich, J.H.Hamilton, W.Hartmann, R.-D.Herzberg, F.P.Hessberger, D.J.Hinde, J.Hoffmann, R.Hollinger, A.Hubner, E.Jager, B.Kindler, J.V.Kratz, J.Krier, N.Kurz, M.Laatiaoui, S.Lahiri, R.Lang, B.Lommel, M.Maiti, K.Miernik, S.Minami, A.Mistry, C.Mokry, H.Nitsche, J.P.Omtvedt, G.K.Pang, P.Papadakis, D.Renisch, J.Roberto, D.Rudolph, J.Runke, K.P.Rykaczewski, L.G.Sarmiento, M.Schadel, B.Schausten, A.Semchenkov, D.A.Shaughnessy, P.Steinegger, J.Steiner, E.E.Tereshatov, P.Thorle-Pospiech, K.Tinschert, T.Torres De Heidenreich, N.Trautmann, A.Turler, J.Uusitalo, D.E.Ward, M.Wegrzecki, N.Wiehl, S.M.Van Cleve, V.Yakusheva

48Ca + 249Bk Fusion Reaction Leading to Element Z=117: Long-Lived α-Decaying 270Db and Discovery of 266Lr

NUCLEAR REACTIONS 249Bk(48Ca, X)294Ts, E=268.3, 270.2, 274.1 MeV; measured reaction products, Eα, Iα; deduced σ. Comparison with experimental data.

RADIOACTIVITY 294Ts, 290Mc, 286Nh, 282Rg, 278Mt, 274Bh, 270Db, 266Lr(α); measured decay products, Eα, Iα; deduced T1/2. Comparison with experimental data.

doi: 10.1103/PhysRevLett.112.172501
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0731. Data from this article have been entered in the XUNDL database. For more information, click here.


2014NI16      Nucl.Data Sheets 119, 299 (2014)

K.Nishio, H.Ikezoe, S.Hofmann, D.Ackermann, Y.Aritomo, V.F.Comas, Ch.E.Dullmann, S.Heinz, J.A.Heredia, F.P.Hessberger, K.Hirose, J.Khuyagbaatar, B.Kindler, I.Kojouharov, B.Lommel, M.Makii, R.Mann, S.Mitsuoka, I.Nishinaka, T.Ohtsuki, S.Saro, M.Schadel, A.G.Popeko, A.Turler, Y.Wakabayashi, Y.Watanabe, A.Yakushev, A.Yeremin

Study of Heavy-ion Induced Fission for Heavy Element Synthesis

NUCLEAR REACTIONS 238U(30Si, F), (34S, F), E*=30-68 MeV;238U(36S, F), E(cm)=140-180 MeV; measured reaction products; calculated σ; deduced σ. 238U(30Si, xn), E(cm)=125-160 MeV;238U(34S, xn), E(cm)=140-180 MeV; measured reaction products; deduced σ; calculated σ.

doi: 10.1016/j.nds.2014.08.082
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2014RU04      Acta Phys.Pol. B45, 263 (2014)

D.Rudolph, U.Forsberg, P.Golubev, L.G.Sarmiento, A.Yakushev, L.-L.Andersson, A.Di Nitto, Ch.E.Dullmann, J.M.Gates, K.E.Gregorich, C.J.Gross, R.-D.Herzberg, F.P.Hessberger, J.Khuyagbaatar, J.V.Kratz, K.Rykaczewski, M.Schadel, S.Aberg, D.Ackermann, M.Block, H.Brand, B.G.Carlsson, D.Cox, X.Derkx, K.Eberhardt, J.Even, C.Fahlander, J.Gerl, E.Jager, B.Kindler, J.Krier, I.Kojouharov, N.Kurz, B.Lommel, A.Mistry, C.Mokry, H.Nitsche, J.P.Omtvedt, P.Papadakis, I.Ragnarsson, J.Runke, H.Schaffner, B.Schausten, P.Thorle-Pospiech, T.Torres, T.Traut, N.Trautmann, A.Turler, A.Ward, D.E.Ward, N.Wiehl

Alpha-Photon Coincidence Spectroscopy Along Element 115 Decay Chains

RADIOACTIVITY 287,288Mc, 283,284Nh, 279,280Rg, 275,276Mt, 271,272Bh(α), 267,268Db(SF) [from 243Am(48Ca, X), E not given]; measured decay products, Eα, Iα, Eγ, Iγ, X-rays; deduced T1/2, correlated α-decay chains. Comparison with available data.

doi: 10.5506/APhysPolB.45.263
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2014SA21      Radiochim.Acta 102, 211 (2014)

N.Sato, T.K.Sato, M.Asai, A.Toyoshima, K.Tsukada, Z.J.Li, K.Nishio, Y.Nagame, M.Schadel, H.Haba, S.Ichikawa, H.Kikunaga

Production of 256Lr in the 249, 250, 251Cf + 11B, 243Am + 18O, and 248Cm + 14N reactions

NUCLEAR REACTIONS 249,250,251Cf(11B, xn)256Lr, E=65.1-76.4 MeV; 243Am(18O, 5n), E=106.9-112.4 MeV; 248Cm(14N, 6n), E=101.5 MeV; measured reaction products, Eα, Iα; deduced σ, T1/2. Comparison with available data.

doi: 10.1515/ract-2014-2142
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2465.


2014YA33      Inorg. Chem. 53, 1624 (2014)

A.Yakushev, J.M.Gates, A.Turler, M.Schadel, C.E.Dullmann, D.Ackermann, L.-L.Andersson, M.Block, W.Bruchle, J.Dvorak, K.Eberhardt, H.G.Essel, J.Even, U.Forsberg, A.Gorshkov, R.Graeger, K.E.Gregorich, W.Hartmann, R.-D.Herzberg, F.P.Hessberger, D.Hild, A.Hubner, E.Jager, J.Khuyagbaatar, B.Kindler, J.V.Kratz, J.Krier, N.Kurz, B.Lommel, L.J.Niewisch, H.Nitsche, J.P.Omtvedt, E.Parr, Z.Qin, D.Rudolph, J.Runke, B.Schausten, E.Schimpf, A.Semchenkov, J.Steiner, P.Thorle-Pospiech, J.Uusitalo, M.Wegrzecki, N.Wiehl

Superheavy Element Flerovium (Element 114) Is a Volatile Metal

NUCLEAR REACTIONS 244Pu(48Ca, Xn)288Fl/289Fl, E=259.4 MeV; measured reaction products, Eα, Iα; deduced two atoms of flerovium, the observed adsorption behavior of Fl points to a higher inertness compared to its nearest homologue in the group, Pb. However, the measured lower limit for the adsorption enthalpy of Fl on a Au surface points to the formation of a metal-metal bond of Fl with Au. Fl is the least reactive element in the group, but still a metal.

doi: 10.1021/ic4026766
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2013KR14      Phys.Rev. C 88, 054615 (2013)

J.V.Kratz, M.Schadel, H.W.Gaggeler

Reexamining the heavy-ion reactions 238U+238U and 238U+248Cm and actinide production close to the barrier

NUCLEAR REACTIONS 238U(238U, X), E=6.49, 6.84, 7.50, 8.30, 8.65, 9.00 MeV/nucleon; 238U(136Xe, X), E=7.50 MeV/nucleon; 248Cm(238U, X), E=10 MeV/nucleon; measured reaction products, Eα, Iα, Eγ, Iγ, SF events; deduced fission σ and TKEL for Z=79-91 fission products. 248,249,250,251,252,253,254Cf, 252,253,254m,254,255,256mEs, 252,253,254,255,256,257Fm; deduced average thick-target σ(E), significance of 3n- and/or 4n-evaporation channels for surviving heavy actinides.

doi: 10.1103/PhysRevC.88.054615
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0776.


2013RU11      Phys.Rev.Lett. 111, 112502 (2013)

D.Rudolph, U.Forsberg, P.Golubev, L.G.Sarmiento, A.Yakushev, L.-L.Andersson, A.Di Nitto, Ch.E.Dullmann, J.M.Gates, K.E.Gregorich, C.J.Gross, F.P.Hessberger, R.-D.Herzberg, J.Khuyagbaatar, J.V.Kratz, K.Rykaczewski, M.Schadel, S.Aberg, D.Ackermann, M.Block, H.Brand, B.G.Carlsson, D.Cox, X.Derkx, K.Eberhardt, J.Even, C.Fahlander, J.Gerl, E.Jager, B.Kindler, J.Krier, I.Kojouharov, N.Kurz, B.Lommel, A.Mistry, C.Mokry, H.Nitsche, J.P.Omtvedt, P.Papadakis, I.Ragnarsson, J.Runke, H.Schaffner, B.Schausten, P.Thorle-Pospiech, T.Torres, T.Traut, N.Trautmann, A.Turler, A.Ward, D.E.Ward, N.Wiehl

Spectroscopy of Element 115 Decay Chains

RADIOACTIVITY 288Mc, 284Nh, 280Rg, 276Mt, 272Bh(α) [from 243Am(48Ca, X), E=5.4 MeV/nucleon]; measured decay products, Eα, Iα, Eγ, Iγ, X-rays. 280Rg, 276Mt; deduced T1/2, Q-value, α-decay scheme. Comparison with Monte Carlo calculations.

doi: 10.1103/PhysRevLett.111.112502
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2012FO03      Acta Phys.Pol. B43, 305 (2012)

U.Forsberg, P.Golubev, L.G.Sarmiento, J.Jeppsson, D.Rudolph, L.-L.Andersson, D.Ackermann, M.Asai, M.Block, K.Eberhardt, J.Even, Ch.E.Dullmann, J.Dvorak, J.M.Gates, K.E.Gregorich, R.-D.Herzberg, F.P.Hessberger, E.Jager, J.Khuyagbaatar, I.Kojouharov, J.V.Kratz, J.Krier, N.Kurz, S.Lahiri, B.Lommel, M.Maiti, E.Merchan, J.P.Omtvedt, E.Parr, J.Runke, H.Schaffner, M.Schadel, A.Yakushev

First Experiment at TASCA Towards X-Ray Fingerprinting of Element 115 Decay Chains

NUCLEAR REACTIONS 208Pb(48Ca, 2n)254No, E=4.59 MeV/nucleon; measured reaction fusion-evaporation products; deduced distribution of evaporation residue. Comparison with theoretical calculations.

doi: 10.5506/APhysPolB.43.305
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2011GA19      Phys.Rev. C 83, 054618 (2011)

J.M.Gates, Ch.E.Dullmann, M.Schadel, A.Yakushev, A.Turler, K.Eberhardt, J.V.Kratz, D.Ackermann, L.-L.Andersson, M.Block, W.Bruchle, J.Dvorak, H.G.Essel, P.A.Ellison, J.Even, U.Forsberg, J.Gellanki, A.Gorshkov, R.Graeger, K.E.Gregorich, W.Hartmann, R.-D.Herzberg, F.P.Hessberger, D.Hild, A.Hubner, E.Jager, J.Khuyagbaatar, B.Kindler, J.Krier, N.Kurz, S.Lahiri, D.Liebe, B.Lommel, M.Maiti, H.Nitsche, J.P.Omtvedt, E.Parr, D.Rudolph, J.Runke, H.Schaffner, B.Schausten, E.Schimpf, A.Semchenkov, J.Steiner, P.Thorle-Pospiech, J.Uusitalo, M.Wegrzecki, N.Wiehl

First superheavy element experiments at the GSI recoil separator TASCA: The production and decay of element 114 in the 244Pu(48Ca, 3-4n) reaction

NUCLEAR REACTIONS 206Pb(48Ca, 2n)252No, E=231.2 MeV; 207Pb(48Ca, 2n)253No, E=231.2 MeV; 208Pb(48Ca, 2n)254No, E=231.2 MeV; 244Pu(48Ca, 3n)289Fl, E=254.6, 259.4 MeV; 244Pu(48Ca, 4n)288Fl, E=254.6, 259.4 MeV; measured evaporation residue spectra, Eα, Iα, fission fragment spectra, Eγ, αγ-, α(particle)-coin, production cross sections. TASCA recoil separator at GSI. Comparison with previous measurements. RADIOACTIVITY 252,253,254No, 288,289Fl(α), (SF); measured Eα, half-lives, branching ratios for α and SF decay modes, (evaporation residues)α- and (evaporation residues)(fission fragments)-correlations, αγ-, γ(SF events)-coin. 248Fm, 281Ds, 284,285Cn, (α); measured Eα, EVR-α-α correlations, Eγ, half-lives. 277Hs(SF); measured total kinetic energy (TKE), half-life.

doi: 10.1103/PhysRevC.83.054618
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2010DU06      Phys.Rev.Lett. 104, 252701 (2010)

Ch.E.Dullmann, M.Schadel, A.Yakushev, A.Turler, K.Eberhardt, J.V.Kratz, D.Ackermann, L.-L.Andersson, M.Block, W.Bruchle, J.Dvorak, H.G.Essel, P.A.Ellison, J.Even, J.M.Gates, A.Gorshkov, R.Graeger, K.E.Gregorich, W.Hartmann, R.-D.Herzberg, F.P.Hessberger, D.Hild, A.Hubner, E.Jager, J.Khuyagbaatar, B.Kindler, J.Krier, N.Kurz, S.Lahiri, D.Liebe, B.Lommel, M.Maiti, H.Nitsche, J.P.Omtvedt, E.Parr, D.Rudolph, J.Runke, B.Schausten, E.Schimpf, A.Semchenkov, J.Steiner, P.Thorle-Pospiech, J.Uusitalo, M.Wegrzecki, N.Wiehl

Production and Decay of Element 114: High Cross Sections and the New Nucleus 277Hs

NUCLEAR REACTIONS 244Pu(48Ca, 3n)289Fl, 244Pu(48Ca, 4n)288Fl, E=259.4, 254.6 MeV; measured reaction products, Eα, Iα; deduced σ, α-decay chains, T1/2.

RADIOACTIVITY 288,289Fl, 285Cn(α), 281Ds(α), 284Cn, 281Ds, 277Hs(SF); measured reaction products, Eα, Iα; deduced α-decay chains, T1/2.

doi: 10.1103/PhysRevLett.104.252701
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2010GR04      Phys.Rev. C 81, 061601 (2010)

R.Graeger, D.Ackermann, M.Chelnokov, V.Chepigin, Ch.E.Dullmann, J.Dvorak, J.Even, A.Gorshkov, F.P.Hessberger, D.Hild, A.Hubner, E.Jager, J.Khuyagbaatar, B.Kindler, J.V.Kratz, J.Krier, A.Kuznetsov, B.Lommel, K.Nishio, H.Nitsche, J.P.Omtvedt, O.Petrushkin, D.Rudolph, J.Runke, F.Samadani, M.Schadel, B.Schausten, A.Turler, A.Yakushev, Q.Zhi

Experimental study of the 238U(36S, 3-5n)269-271Hs reaction leading to the observation of 270Hs

NUCLEAR REACTIONS 238U(36S, 3n), (36S, 4n), (36S, 5n), E=256.4 MeV; measured reaction products using COMPACT system of efficient and rapid chemical-separation and online detection based on the cryo-thermo chromatography method. 269,270,271Hs; deduced production σ.

RADIOACTIVITY 269,270,271Hs, 265,267Sg(α); measured decay products, Iα, Eα; deduced T1/2, αα correlations; 261,263Rf, 264Sg(SF); measured decay products, Eα, Iα; deduced α-SF correlations.

doi: 10.1103/PhysRevC.81.061601
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2010NI14      Phys.Rev. C 82, 024611 (2010)

K.Nishio, S.Hofmann, F.P.Hessberger, D.Ackermann, S.Antalic, Y.Aritomo, V.F.Comas, Ch.E.Dullmann, A.Gorshkov, R.Graeger, K.Hagino, S.Heinz, J.A.Heredia, K.Hirose, H.Ikezoe, J.Khuyagbaatar, B.Kindler, I.Kojouharov, B.Lommel, R.Mann, S.Mitsuoka, Y.Nagame, I.Nishinaka, T.Ohtsuki, A.G.Popeko, S.Saro, M.Schadel, A.Turler, Y.Watanabe, A.Yakushev, A.V.Yeremin

Nuclear orientation in the reaction 34S+238U and synthesis of the new isotope 268Hs

NUCLEAR REACTIONS 238U(34S, xn)267Hs/268Hs, E=148-170 MeV; measured evaporation residues and Eα, Eγ, x-rays, (fragment)α-, (fragment)γ-coin, production σ, fission σ(E), mass distribution of fission fragments as a function of energy. Comparison of fission σ(E) with calculations based on the three-dimensional Langevin equation and deformed target nuclei. Coupled-channel calculations for mass distributions. 268,269Sg, 272,273Hs, 269,271,272Mt, 274,275,276,277Sg, 273,275,276Rg, 278,279,280,281Cn; theoretical estimates of production rates in 243Am, 244Pu, 248Cm(34S, xn), (36S, xn) reactions.

RADIOACTIVITY 267,268Hs(α)[from 238U(34S, X), E=163.0 MeV]; 263Sg, 259Rf(α); 264Sg(SF); measured Eα, Eγ, x-rays, (fragment)α-, (fragment)γ-coin, half-lives; deduced Qα. Systematics of Qα values for even-even Z=104-114 and N=150-170 nuclei.

doi: 10.1103/PhysRevC.82.024611
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2009DV01      Phys.Rev. C 79, 037602 (2009)

J.Dvorak, W.Bruchle, Ch.E.Dullmann, Z.Dvorakova, K.Eberhardt, R.Eichler, E.Jager, Y.Nagame, Z.Qin, M.Schadel, B.Schausten, E.Schimpf, R.Schuber, A.Semchenkov, P.Thorle, A.Turler, M.Wegrzecki, A.Yakushev

Cross section limits for the 248Cm(25Mg, 4n-5n)268, 269Hs reactions

NUCLEAR REACTIONS 248Cm(25Mg, 4n)269Hs, (25Mg, 5n)268Hs, E(cm)=140 MeV; measured α, fission events, α-SF and α-α correlations, production cross section limits. No events were assigned to 268Hs and 269Hs.

RADIOACTIVITY 268Hs, 269Hs(α); measured Eα, half-lives.

doi: 10.1103/PhysRevC.79.037602
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1682. Data from this article have been entered in the XUNDL database. For more information, click here.


2008DV02      Phys.Rev.Lett. 100, 132503 (2008)

J.Dvorak, W.Bruchle, M.Chelnokov, Ch.E.Dullmann, Z.Dvorakova, K.Eberhardt, E.Jager, R.Krucken, A.Kuznetsov, Y.Nagame, F.Nebel, K.Nishio, R.Perego, Z.Qin, M.Schadel, B.Schausten, E.Schimpf, R.Schuber, A.Semchenkov, P.Thorle, A.Turler, M.Wegrzecki, B.Wierczinski, A.Yakushev, A.Yeremin

Observation of the 3n Evaporation Channel in the Complete Hot-Fusion Reaction 26Mg+248Cm Leading to the New Superheavy Nuclide 271Hs

NUCLEAR REACTIONS 248Cm(26Mg, xn)269Hs/270Hs/271Hs, E=13-15 MeV; measured production σ. 271Hs; deduced T1/2.

doi: 10.1103/PhysRevLett.100.132503
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2008QI03      Radiochim.Acta 96, 455 (2008)

Z.Qin, W.Bruchle, D.Ackermann, K.Eberhardt, F.P.Hessberger, E.Jager, J.V.Kratz, P.Kuusiniemi, D.Liebe, G.Munzenberg, D.Nayak, Yu.N.Novikov, M.Schadel, B.Schausten, E.Schimpf, A.Semchenkov, B.Sulignano, P.Thorle, X.L.Wu

Search for the "missing" α-decay branch in 239Cm

RADIOACTIVITY 239Cm(α) [from 232Th(12C, 5n), E=70, 74 MeV]; measured measured Eγ, Iγ, Eα, Iα.

NUCLEAR REACTIONS 232Th(12C, 6n), (12C, 5n), (12C, 4n), E=70, 74 MeV; measured cross sections.

doi: 10.1524/ract.2008.1517
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2007KA15      Eur.Phys.J. A 31, 319 (2007)

O.Kavatsyuk, C.Mazzocchi, Z.Janas, A.Banu, L.Batist, F.Becker, A.Blazhev, W.Bruchle, J.Doring, T.Faestermann, M.Gorska, H.Grawe, A.Jungclaus, M.Karny, M.Kavatsyuk, O.Klepper, R.Kirchner, M.La Commara, K.Miernik, I.Mukha, C.Plettner, A.Plochocki, E.Roeckl, M.Romoli, K.Rykaczewski, M.Schadel, K.Schmidt, R.Schwengner, J.Zylicz

Beta decay of 101Sn

RADIOACTIVITY 101Sn(β+), (EC), (β+p) [from 50Cr(58Ni, 3nα)]; measured β-delayed Ep, Eγ, γγ-coin, T1/2. 101Sn deduced ground-state J, π. 101In deduced transitions. Mass separator.

NUCLEAR REACTIONS 50Cr(58Ni, 3nα), E=4.9, 5.2 MeV/nucleon; measured delayed Ep; deduced σ. Mass separator.

doi: 10.1140/epja/i2006-10217-3
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2007SC33      Eur.Phys.J. D 45, 67 (2007)

M.Schadel

Superheavy element chemistry at GSI - status and perspectives

doi: 10.1140/epjd/e2007-00036-6
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2007SC47      J.Nucl.Radiochem.Sci. 8, 47 (2007)

M.Schadel

Superheavy Element Chemistry-Achievements and Perspectives

doi: 10.14494/jnrs2000.8.47
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2006DV01      Phys.Rev.Lett. 97, 242501 (2006)

J.Dvorak, W.Bruchle, M.Chelnokov, R.Dressler, Ch.E.Dullmann, K.Eberhardt, V.Gorshkov, E.Jager, R.Krucken, A.Kuznetsov, Y.Nagame, F.Nebel, Z.Novackova, Z.Qin, M.Schadel, B.Schausten, E.Schimpf, A.Semchenkov, P.Thorle, A.Turler, M.Wegrzecki, B.Wierczinski, A.Yakushev, A.Yeremin

Doubly Magic Nucleus 270108Hs162

RADIOACTIVITY 269,270Hs, 265Sg(α) [from 248Cm(26Mg, xn) and subsequent decay]; measured Eα, T1/2. 266Sg(SF) [from 270Hs decay]; measured T1/2. Rapid chemical separation.

NUCLEAR REACTIONS 248Cm(26Mg, 4n), (26Mg, 5n), E=136, 145 MeV; measured delayed Eα, αα-coin; deduced production σ.

doi: 10.1103/PhysRevLett.97.242501
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1650. Data from this article have been entered in the XUNDL database. For more information, click here.


2006EI01      Radiochim.Acta 94, 181 (2006)

R.Eichler, W.Bruchle, R.Buda, S.Burger, R.Dressler, Ch.E.Dullmann, J.Dvorak, K.Eberhardt, B.Eichler, C.M.Folden III, H.W.Gaggeler, K.E.Gregorich, F.Haenssler, D.C.Hoffman, H.Hummrich, E.Jager, J.V.Kratz, B.Kuczewski, D.Liebe, D.Nayak, H.Nitsche, D.Piguet, Z.Qin, U.Rieth, M.Schadel, B.Schausten, E.Schimpf, A.Semchenkov, S.Soverna, R.Sudowe, N.Trautmann, P.Thorle, A.Turler, B.Wierczinski, N.Wiehl, P.A.Wilk, G.Wirth, A.B.Yakushev, A.von Zweidorf

Attempts to chemically investigate element 112

NUCLEAR REACTIONS 238U(48Ca, X), E=231, 235 MeV; measured delayed fission, Eα, (fission)α-coin; deduced no evidence for 283Cn. Thermochromatography.

doi: 10.1524/ract.2006.94.4.181
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2006KA16      Eur.Phys.J. A 27, 129 (2006)

M.Karny, L.Batist, A.Banu, F.Becker, A.Blazhev, B.A.Brown, W.Bruchle, J.Doring, T.Faestermann, M.Gorska, H.Grawe, Z.Janas, A.Jungclaus, M.Kavatsyuk, O.Kavatsyuk, R.Kirchner, M.La Commara, S.Mandal, C.Mazzocchi, K.Miernik, I.Mukha, S.Muralithar, C.Plettner, A.Plochocki, E.Roeckl, M.Romoli, K.Rykaczewski, M.Schadel, K.Schmidt, R.Schwengner, J.Zylicz

Beta decay of the proton-rich nuclei 102Sn and 104Sn

RADIOACTIVITY 102,104Sn(EC), (β+) [from 50Cr(58Ni, X), E=284-302 MeV]; measured Eβ, Iβ, β-delayed Eγ, Iγ, βγ-, γγ-coin; deduced Gamow-Teller strength. 102,104In deduced levels, J, π. Mass separated source, total absorption spectrometer.

doi: 10.1140/epja/i2005-10258-0
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2006KA44      Eur.Phys.J. A 29, 183 (2006)

M.Kavatsyuk, L.Batist, F.Becker, A.Blazhev, W.Bruchle, J.Doring, T.Faestermann, M.Gorska, H.Grawe, Z.Janas, A.Jungclaus, M.Karny, O.Kavatsyuk, R.Kirchner, M.La Commara, S.Mandal, C.Mazzocchi, I.Mukha, S.Muralithar, C.Plettner, A.Plochocki, E.Roeckl, M.Romoli, M.Schadel, J.Zylicz

Gamow-Teller beta decay of 105Sn

RADIOACTIVITY 105Sn(β+), (EC), (β+p) [from 50Cr(58Ni, n2p)]; measured Eγ, Eβ, Ep, βγ-, βp-coin, T1/2; deduced branching ratios. 105In deduced isomer feeding intensity, transition ICC. Total absorption spectrometer.

doi: 10.1140/epja/i2006-10077-9
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2006SC02      Angew.Chem.Int.Ed. 45, 368 (2006)

M.Schadel

Chemistry of Superheavy Elements

doi: 10.1002/anie.200461072
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2005KA34      Eur.Phys.J. A 25, 211 (2005)

O.Kavatsyuk, M.Kavatsyuk, L.Batist, A.Banu, F.Becker, A.Blazhev, W.Bruchle, J.Doring, T.Faestermann, M.Gorska, H.Grawe, Z.Janas, A.Jungclaus, M.Karny, R.Kirchner, M.La Commara, S.Mandal, C.Mazzocchi, I.Mukha, S.Muralithar, C.Plettner, A.Plochocki, E.Roeckl, M.Romoli, M.Schadel, R.Schwengner, J.Zylicz

Beta decay of 103Sn

RADIOACTIVITY 103Sn(β+), (EC), (ECp), (β+p) [from 50Cr(58Ni, nα)]; measured Eγ, Iγ, βγ-, γγ-coin, T1/2, Q(EC), β-delayed proton spectra; deduced log ft, Gamow-Teller strength distribution, proton decay branching ratio. 103In deduced levels, J, π. Total absorption spectrometer.

doi: 10.1140/epja/i2005-10108-1
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2005KA47      Eur.Phys.J. A 25, Supplement 1, 135 (2005)

M.Karny, L.Batist, A.Banu, F.Becker, A.Blazhev, K.Burkard, W.Bruchle, J.Doring, T.Faestermann, M.Gorska, H.Grawe, Z.Janas, A.Jungclaus, M.Kavatsyuk, O.Kavatsyuk, R.Kirchner, M.La Commara, S.Mandal, C.Mazzocchi, K.Miernik, I.Mukha, S.Muralithar, C.Plettner, A.Plochocki, E.Roeckl, M.Romoli, K.Rykaczewski, M.Schadel, K.Schmidt, R.Schwengner, J.Zylicz

Beta-decay studies near 100Sn

RADIOACTIVITY 102Sn(β+) [from 58Ni(50Cr, X)]; measured Eγ, Iγ, γγ-coin, Eβ, B(GT). 102In levels deduced β-feeding intensities, log ft, hindrance factor. 100Sn(β+); analyzed data; deduced B(GT), hindrance factor.

NUCLEAR REACTIONS 58Ni(50Cr, X)101Sn/102Sn/103Sn/104Sn/105Sn, E ≈ 5 MeV/nucleon; measured production σ. 58Ni(50Cr, X)100Sn, E=5.8 MeV/nucleon; deduced approximate production σ.

doi: 10.1140/epjad/i2005-06-037-9
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2005KA48      Eur.Phys.J. A 25, Supplement 1, 139 (2005)

M.Kavatsyuk, O.Kavatsyuk, L.Batist, A.Banu, F.Becker, A.Blazhev, W.Bruchle, K.Burkard, J.Doring, T.Faestermann, M.Gorska, H.Grawe, Z.Janas, A.Jungclaus, M.Karny, R.Kirchner, M.La Commara, S.Mandal, C.Mazzocchi, I.Mukha, S.Muralithar, C.Plettner, A.Plochocki, E.Roeckl, M.Romoli, M.Schadel, R.Schwengner, J.Zylicz

Beta-decay spectroscopy of 103, 105Sn

RADIOACTIVITY 103Sn(β+), (EC) [from 58Ni(50Cr, X), E=5 MeV/nucleon]; measured Eγ, Iγ, γγ-, βγ-coin, Eβ, B(GT), T1/2. 103In deduced levels, J, π, hindrance factor. 105Sn(β+), (EC) [from 58Ni(50Cr, X), E=5 MeV/nucleon]; analyzed data; deduced B(GT), hindrance factor.

doi: 10.1140/epjad/i2005-06-038-8
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2005NA46      Radiochim.Acta 93, 519 (2005)

Y.Nagame, K.Tsukada, M.Asai, A.Toyoshima, K.Akiyama, Y.Ishii, T.Kaneko-Sato, M.Hirata, I.Nishinaka, S.Ichikawa, H.Haba, S.Enomoto, K.Matsuo, D.Saika, Y.Kitamoto, H.Hasegawa, Y.Tani, W.Sato, A.Shinohara, M.Ito, J.Saito, S.Goto, H.Kudo, H.Kikunaga, N.Kinoshita, A.Yokoyama, K.Sueki, Y.Oura, H.Nakahara, M.Sakama, M.Schadel, W.Bruchle, J.V.Kratz

Chemical studies on rutherfordium (Rf) at JAERI

NUCLEAR REACTIONS 248Cm(18O, 5n), E ≈ 90-100 MeV; measured excitation function. Chemical properties of rutherfordium studied.

doi: 10.1524/ract.2005.93.9-10.519
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2004GA18      Nucl.Phys. A734, 208 (2004)

H.W.Gaggeler, W.Bruchle, Ch.E.Dullmann, R.Dressler, K.Eberhardt, B.Eichler, R.Eichler, C.M.Folden, T.N.Ginter, F.Glaus, K.E.Gregorich, F.Haenssler, D.C.Hoffman, E.Jager, D.T.Jost, U.W.Kirbach, J.V.Kratz, H.Nitsche, J.B.Patin, V.Pershina, D.Piguet, Z.Qin, U.Rieth, M.Schadel, E.Schimpf, B.Schausten, S.Soverna, R.Sudowe, P.Thorle, N.Trautmann, A.Turler, A.Vahle, P.A.Wilk, G.Wirth, A.B.Yakushev, A.von Zweidorf

Chemical and nuclear studies of hassium and element 112

NUCLEAR REACTIONS 248Cm(26Mg, 4n), (26Mg, 5n), E=145 MeV; 238U(48Ca, 3n), E=239 MeV; measured yields. Chemical properties discussed.

doi: 10.1016/j.nuclphysa.2004.01.036
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2004MU32      Nucl.Phys. A746, 66c (2004)

I.Mukha, L.Batist, F.Becker, A.Blazhev, W.Bruchle, J.Doring, M.Gorska, H.Grawe, T.Faestermann, C.Hoffman, Z.Janas, A.Jungclaus, M.Karny, M.Kavatsyuk, O.Kavatsyuk, R.Kirchner, M.La Commara, C.Mazzocchi, C.Plettner, A.Plochocki, E.Roeckl, M.Romoli, M.Schadel, R.Schwengner, S.L.Tabor, M.Wiedeking, and the GSI ISOL Collaboration

Studies of β-delayed proton decays of N ≈ Z nuclei around 100Sn at the GSI-ISOL facility

RADIOACTIVITY 94m,96mAg, 103Sn(EC), (β+), (β+p) [from 58,60Ni(40Ca, 3np) and 50Cr(58Ni, nα)]; measured Eβ, β-delayed Ep, Eγ, βp-, βγ-, pγ-, γγ-coin, T1/2. 94,96Ag deduced high-spin isomer features. 93Rh, 94Pd, 102Cd deduced levels.

doi: 10.1016/j.nuclphysa.2004.09.065
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2004VO24      Radiochim.Acta 92, 855 (2004)

A.von Zweidorf, R.Angert, W.Bruchle, S.Burger, K.Eberhardt, R.Eichler, H.Hummrich, E.Jager, H.-O.Kling, J.V.Kratz, B.Kuczewski, G.Langrock, M.Mendel, U.Rieth, M.Schadel, B.Schausten, E.Schimpf, P.Thorle, N.Trautmann, K.Tsukada, N.Wiehl, G.Wirth

Evidence for the formation of sodium hassate(VIII)

NUCLEAR REACTIONS 248Cm(26Mg, xn), E=144-149 MeV; measured delayed αα-coin; deduced evidence for 269,270Hs. Radiochemical analysis.

RADIOACTIVITY 269,270Hs, 265,266Sg, 257No(α); 261,262Rf(SF) [from 248Cm(26Mg, xn) and subsequent decay]; measured Eα, T1/2.

doi: 10.1524/ract.92.12.855.55112
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2003DU27      Czech.J.Phys. (Supplement) 53, A291 (2003)

Ch.E.Dullmann, R.Dressler, B.Eichler, H.W.Gaggeler, F.Glaus, D.T.Jost, D.Piguet, S.Soverna, A.Turler, W.Bruchle, R.Eichler, E.Jager, V.Pershina, M.Schadel, B.Schausten, E.Schimpf, H.-J.Schott, G.Wirth, K.Eberhardt, P.Thorle, N.Trautmann, T.N.Ginter, K.E.Gregorich, D.C.Hoffman, U.W.Kirbach, D.M.Lee, H.Nitsche, J.B.Patin, R.Sudowe, P.M.Zielinski, S.N.Timokhin, A.B.Yakushev, A.Vahle, Z.Qin

First chemical investigation of hassium (Hs, Z=108)

RADIOACTIVITY 269,270Hs(α); measured Eα, Iα.

doi: 10.1007/s10582-003-0037-4
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2003KR20      Radiochim.Acta 91, 59 (2003)

J.V.Kratz, A.Nahler, U.Rieth, A.Kronenberg, B.Kuczewski, E.Strub, W.Bruchle, M.Schadel, B.Schausten, A.Turler, H.W.Gaggeler, D.T.Jost, K.E.Gregorich, H.Nitsche, C.Laue, R.Sudowe, P.A.Wilk

An EC-branch in the decay of 27-s 263Db: Evidence for the isotope 263Rf

RADIOACTIVITY 263Db(EC), (α), (SF) [from 249Bk(18O, 4n)]; measured Eα, fission fragment spectra; deduced EC-decay branching ratio, evidence for 263Rf. 263Rf(SF) [from 263Db decay]; measured T1/2. Radiochemical separation.

doi: 10.1524/ract.91.1.59.19010
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2003SC42      Acta Phys.Pol. B34, 1701 (2003)

M.Schadel

The chemistry of superheavy elements


2003TU05      Eur.Phys.J. A 17, 505 (2003)

A.Turler, Ch.E.Dullmann, H.W.Gaggeler, U.W.Kirbach, A.B.Yakushev, M.Schadel, W.Bruchle, R.Dressler, K.Eberhardt, B.Eichler, R.Eichler, T.N.Ginter, F.Glaus, K.E.Gregorich, D.C.Hoffman, E.Jager, D.T.Jost, D.M.Lee, H.Nitsche, J.B.Patin, V.Pershina, D.Piguet, Z.Qin, B.Schausten, E.Schimpf, H.-J.Schott, S.Soverna, R.Sudowe, P.Thorle, S.N.Timokhin, N.Trautmann, A.Vahle, G.Wirth, P.M.Zielinski

On the decay properties of 269Hs and indications for the new nuclide 270Hs

NUCLEAR REACTIONS 248Cm(26Mg, xn), E=143.7-146.8 MeV; measured residual nucleus decay; deduced evidence for 269,270Hs. Chemical separation.

RADIOACTIVITY 269,270Hs, 265,266Sg, 261Rf, 257No(α) [from 248Cm(26Mg, xn) and subsequent decay]; measured Eα, T1/2. 261,262Rf(SF); measured fission fragment energies.

doi: 10.1140/epja/i2002-10163-0
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2002DU21      Nature(London) 418, 859 (2002)

Ch.E.Dullmann, W.Bruchle, R.Dressler, K.Eberhardt, B.Eichler, R.Eichler, H.W.Gaggeler, T.N.Ginter, F.Glaus, K.E.Gregorich, D.C.Hoffman, E.Jager, D.T.Jost, U.W.Kirbach, D.M.Lee, H.Nitsche, J.B.Patin, V.Pershina, D.Piguet, Z.Qin, M.Schadel, B.Schausten, E.Schimpf, H.-J.Schott, S.Soverna, R.Sudowe, P.Thorle, S.N.Timokhin, N.Trautmann, A.Turler, A.Vahle, G.Wirth, A.B.Yakushev, P.M.Zielinski

Chemical investigation of hassium (element 108)

RADIOACTIVITY 269,270Hs, 265,266Sg, 261Rf(α) [from 248Cm(26Mg, xn) and subsequent decay]; measured Eα. Chemical properties of hassium discussed.

doi: 10.1038/nature00980
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2002NA37      J.Nucl.Radiochem.Sci. 3, No 1, 85 (2002)

Y.Nagame, M.Asai, H.Haba, S.Goto, K.Tsukada, I.Nishinaka, K.Nishio, S.Ichikawa, A.Toyoshima, K.Akiyama, H.Nakahara, M.Sakama, M.Schadel, J.V.Kratz, H.W.Gaggeler, A.Turler

Production Cross Sections of 261Rf and 262Db in Bombardments of 248Cm with 18O and 19F Ions

NUCLEAR REACTIONS 248Cm(18O, 5n), E=91, 94, 99 MeV; 248Cm(19F, 5n), E=106 MeV; measured delayed Eα, αα-coin; deduced production σ.


2001HU22      Radiochim.Acta 89, 737 (2001)

S.Hubener, S.Taut, A.Vahle, R.Dressler, B.Eichler, H.W.Gaggeler, D.T.Jost, D.Piguet, A.Turler, W.Bruchle, E.Jager, M.Schadel, E.Schimpf, U.Kirbach, N.Trautmann, A.B.Yakushev

Physico-chemical characterization of seaborgium as oxide hydroxide

NUCLEAR REACTIONS 248Cm(22Ne, 4n), E=119 MeV; measured delayed Eα, (fission fragment)α-coin; deduced chemical properties. High-temperature on-line isothermal gas chromatography.

RADIOACTIVITY 266Sg(α) [from 248Cm(22Ne, 4n)]; 262Rf(SF); measured Eα, (fission fragment)α-coin, T1/2.

doi: 10.1524/ract.2001.89.11-12.737
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2001MA98      Hyperfine Interactions 132, 463 (2001)

G.Marx, D.Ackermann, J.Dilling, F.P.Hessberger, S.Hofmann, H.-J.Kluge, R.Mann, G.Munzenberg, Z.Qamhieh, W.Quint, D.Rodriguez, M.Schadel, J.Schonfelder, G.Sikler, C.Toader, C.Weber, O.Engels, D.Habs, P.Thirolf, H.Backe, A.Dretzke, W.Lauth, W.Ludolphs, M.Sewtz, and the SHIPTRAP Collaboration

Status of the SHIPTRAP Project: A capture and storage facility for heavy radionuclides from SHIP

doi: 10.1023/A:1011904231676
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2001WI23      Radiochim.Acta 89, 689 (2001)

Ch.Wirtz, J.V.Kratz, W.Bruchle, M.Schadel, B.Schausten, N.Wiehl

Excitation Energy Division in 51V + 197Au Collisions 75 MeV Above the Barrier

NUCLEAR REACTIONS 197Au(51V, X), E=6.706 MeV/nucleon; measured fragments mass and charge distributions, excitation energy distribution; deduced reaction mechanism features.


2000EI05      Nature(London) 407, 63 (2000)

R.Eichler, W.Bruchle, R.Dressler, Ch.E.Dullmann, B.Eichler, H.W.Gaggeler, K.E.Gregorich, D.C.Hoffman, S.Hubener, D.T.Jost, U.W.Kirbach, C.A.Laue, V.M.Lavanchy, H.Nitsche, J.B.Patin, D.Piguet, M.Schadel, D.A.Shaughnessy, D.A.Strellis, S.Taut, L.Tobler, Y.S.Tsyganov, A.Turler, A.Vahle, P.A.Wilk, A.B.Yakushev

Chemical characterization of bohrium (element 107)

NUCLEAR REACTIONS 249Bk(22Ne, 4n), E=119 MeV; measured radiochemical yield; deduced chemical properties.

doi: 10.1038/35024044
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1999DR09      Phys.Rev. C59, 3433 (1999)

R.Dressler, B.Eichler, D.T.Jost, D.Piguet, A.Turler, Ch.Dullmann, R.Eichler, H.W.Gaggeler, M.Gartner, M.Schadel, S.Taut, A.B.Yakushev

Production of 262Db (Z = 105) in the Reaction 248Cm(19F, 5n)

NUCLEAR REACTIONS 248Cm(19F, 5n), E=106.5 MeV; measured production σ. Comparison with other reactions, model predictions.

doi: 10.1103/PhysRevC.59.3433
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1999TU04      Angew.Chem., Int.Ed.Eng. 38, 2212 (1999)

A.Turler, W.Bruchle, R.Dressler, B.Eichler, R.Eichler, H.W.Gaggeler, M.Gartner, J.-P.Glatz, K.E.Gregorich, S.Hubener, D.T.Jost, V.Ya.Lebedev, V.G.Pershina, M.Schadel, S.Taut, S.N.Timokhin, N.Trautmann, A.Vahle, A.B.Yakushev

First Measurement of a Thermochemical Property of a Seaborgium Compound


1998SC50      Radiochim.Acta 83, 163 (1998)

M.Schadel, W.Bruchle, E.Jager, B.Schausten, G.Wirth, W.Paulus, R.Gunther, K.Eberhardt, J.V.Kratz, A.Seibert, E.Strub, P.Thorle, N.Trautmann, A.Waldek, S.Zauner, D.Schumann, U.Kirbach, B.Kubica, R.Misiak, Y.Nagame, K.E.Gregorich

Aqueous Chemistry of Seaborgium (Z=106)


1998TU01      Phys.Rev. C57, 1648 (1998)

A.Turler, R.Dressler, B.Eichler, H.W.Gaggeler, D.T.Jost, M.Schadel, W.Bruchle, K.E.Gregorich, N.Trautmann, S.Taut

Decay Properties of 265Sg(Z = 106) and 266Sg(Z = 106)

NUCLEAR REACTIONS 248Cm(22Ne, 4n), (22Ne, 5n), E=121, 123 MeV; measured residual nuclei decay α-spectra, αα-coin; deduced evidence for 265,266Sg. On-line gas chemistry apparatus.

RADIOACTIVITY 265,266Sg(α); measured Eα, T1/2.

doi: 10.1103/PhysRevC.57.1648
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1997KL01      Z.Phys. A357, 193 (1997)

P.Klein, J.V.Kratz, M.K.Gober, H.P.Zimmermann, W.Bruchle, W.Reisdorf, M.Schadel

Excitation Energy Division in 51V + 197Au Collisions at and Near the Barrier

NUCLEAR REACTIONS 197Au(51V, X), E=4.86, 5.48 MeV/nucleon; measured fragment mass yields, charge distributions; deduced average excitation energy vs Z, fusion, fission, deep inelastic scattering integral σ balance.

doi: 10.1007/s002180050234
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1997SC48      Radiochim.Acta 77, 149 (1997)

M.Schadel, W.Bruchle, B.Schausten, E.Schimpf, E.Jager, G.Wirth, R.Gunther, J.V.Kratz, W.Paulus, A.Seibert, P.Thorle, N.Trautmann, S.Zauner, D.Schumann, M.Andrassy, R.Misiak, K.E.Gregorich, D.C.Hoffman, D.M.Lee, E.R.Sylwester, Y.Nagame, Y.Oura

First Aqueous Chemistry with Seaborgium (Element 106)

RADIOACTIVITY 265,266Sg(α), (SF) [from 248Cm(22Ne, xn)]; measured T1/2. Chemical separation.


1997SC49      Nature(London) 388, 55 (1997)

M.Schadel, W.Bruchle, R.Dressler, B.Eichler, H.W.Gaggeler, R.Gunther, K.E.Gregorich, D.C.Hoffman, S.Hubener, D.T.Jost, J.V.Kratz, W.Paulus, D.Schumann, S.Timokhin, N.Trautmann, A.Turler, G.Wirth, A.Yakushev

Chemical properties of element 106 (seaborgium)

RADIOACTIVITY 265,266Sg(α) [from 248Cm(22Ne, X)265Sg/266Sg]; measured Eα, Iα, chemical properties.


1995SC52      Radiochim.Acta 68, 1 (1995)

M.Schadel, E.Jager, E.Schimpf, W.Bruchle

Modeling a Nielsbohrium (Element 107) On-Line Gas Phase Separation Procedure with Rhenium


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.


1995SC59      Radiochim.Acta 70/71, 207 (1995)

M.Schadel

Chemistry of the Transactinde Elements


1994AU02      Nucl.Phys. A569, 157c (1994)

T.Aumann, W.Bruchle, M.Fauerbach, J.C.Hill, J.V.Kratz, M.Schadel, E.Stiel, K.Summerer, G.Wirth

Evidence for Two-Phonon Giant-Dipole Excitation from Inclusive Measurements of 197Au Target Dissociation

NUCLEAR REACTIONS 197Au(20Ne, X), E=1.7 GeV/nucleon; 197Au(86Kr, X), (197Au, X), (209Bi, X), E=1 GeV/nucleon; measured target electromagnetic dissociation σ. Activation technique, model comparison.

doi: 10.1016/0375-9474(94)90106-6
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1994PO24      Z.Phys. A350, 221 (1994)

S.Polikanov, W.Bruchle, H.Folger, E.Jager, T.Krogulski, M.Schadel, E.Schimpf, G.Wirth, T.Aumann, J.V.Kratz, E.Stiel, N.Trautmann

Electromagnetic and Nuclear Fission of 238U in the Reaction of 100, 500, and 1000A.MeV 208Pb with 238U

NUCLEAR REACTIONS, ICPND 238U(208Pb, F), (238U, F), E=100-1000 MeV/nucleon; measured electromagnetic, nuclear fission fragment velocity distributions; deduced fission σ(E) for the two processes.

doi: 10.1007/BF01289586
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1993ZI06      Radiochim.Acta 60, 11 (1993)

H.P.Zimmermann, M.K.Gober, J.V.Kratz, M.Schadel, W.Bruchle, E.Schimpf, K.E.Gregorich, A.Turler, K.R.Czerwinski, N.J.Hannink, B.Kadkhodayan, D.M.Lee, M.J.Nurmia, D.C.Hoffman, H.Gaggeler, D.Jost, J.Kovacz, U.W.Scherer, A.Weber

Chemical Properties of Element 105 in Aqueous Solution: Back extraction from triisooctyl amine into 0.5 M HCl

NUCLEAR REACTIONS 249Bk(18O, 5n), (18O, 4n), E=99 MeV; measured Eα, Iα, SF-decay activities of residuals; deduced non-tantulum like behavior of element 105.

RADIOACTIVITY 262,263Db(α), (SF) [from 249Bk(18O, 5n), (18O, 4n), E=99 MeV]; 258,259Lr(α) [from 262,263Db α-decay]; measured Eα, Iα, αα(t); deduced non-tantulum like behavior of element 105.


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.


1992GO28      Radiochim.Acta 57, 77 (1992)

M.K.Gober, J.V.Kratz, H.P.Zimmermann, M.Schadel, W.Bruchle, E.Schimpf, K.E.Gregorich, A.Turler, N.J.Hannink, K.R.Czerwinski, B.Kadkhodayan, D.M.Lee, M.J.Nurmia, D.C.Hoffman, H.Gaggeler, D.Jost, J.Kovacz, U.W.Scherer, A.Weber

Chemical Properties of Element 105 in Aqueous Solution: Extractions into dissobutylcarbinol

NUCLEAR REACTIONS 249Bk(18O, 4n), (18O, 5n), E=99 MeV; measured Eα, Iα, residuals fission activities; deduced 262Db, 263Db element chemical properties.


1992KR01      Phys.Rev. C45, 1064 (1992)

J.V.Kratz, M.K.Gober, H.P.Zimmermann, M.Schadel, W.Bruchle, E.Schimpf, K.E.Gregorich, A.Turler, N.J.Hannink, K.R.Czerwinski, B.Kadkhodayan, D.M.Lee, M.J.Nurmia, D.C.Hoffman, H.Gaggeler, D.Jost, J.Kovacz, U.W.Scherer, A.Weber

New Nuclide 263Ha

RADIOACTIVITY 263Db(α), (SF) [from 249Bk(18O, 4n), E=93 MeV]; measured T1/2, Eα, Iα, (α)(SF-decay fragment)-, (α, α)-correlations; deduced α/SF branching ratios. Rapid chemical separation.

NUCLEAR REACTIONS 249Bk(18O, 4n), E=93 MeV; measured Eα, Iα, αα-correlations; deduced evidence for 263Db.

doi: 10.1103/PhysRevC.45.1064
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1992RE06      Z.Phys. A342, 411 (1992)

W.Reisdorf, J.V.Kratz, R.Bellwied, W.Bruchle, H.Keller, K.Lutzenkirchen, M.Schadel, K.Summerer, G.Wirth

Competition between Binary Reactions and Fusion in Heavy-Ion Collisions at the Coulomb Barrier

NUCLEAR REACTIONS 76Ge(86Kr, X), E=3.22 MeV/nucleon; 104Ru(86Kr, X), E=3.84, 3.64 MeV/nucleon; 130Te(84Kr, X), E=3.96 MeV/nucleon; measured residual production σ for X=Zn to Ce isotopes, mass, charge distributions; deduced reseparation channels main components.

doi: 10.1007/BF01294952
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1992RE07      Z.Phys. A343, 47 (1992)

W.Reisdorf, M.Schadel

How Well Do We Understand the Synthesis of Heavy Elements by Heavy-Ion Induced Fusion ( Question )

NUCLEAR REACTIONS 238U(12C, xn), E ≥ threshold; calculated σ(E) for x=4, 5, 6, 7, 8; 248Cm(15N, 4n), E ≈ 75-88 MeV; 249Cf(15N, 4n), E ≈ 77-95 MeV; 249Cf(18O, 4n), E ≈ 88-100 MeV; 249Bk(15N, 4n), E ≈ 78-85 MeV; calculated σ(E). 208Pb(40Ar, xn), (48Ca, xn), E not given; calculated σ(E) for x=1, 2, 4. 249Cf(18O, xn), 208Pb(54Cr, X), E not given; calculated evaporation residue σ vs excitation; deduced heavy element synthesis features for heavy-ion reactions.

doi: 10.1007/BF01291597
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1992SC30      Radiochim.Acta 57 85 (1992)

M.Schadel, W.Bruchle, E.Schimpf, H.P.Zimmermann, M.K.Gober, J.V.Kratz, N.Trautmann, H.Gaggeler, D.Jost, J.Kovacs, U.W.Scherer, A.Weber, K.E.Gregorich, A.Turler, K.R.Czerwinski, N.J.Hannink, B.Kadkhodayan, D.M.Lee, M.J.Nurmia, D.C.Hoffman

Chemical Properties of Element 105 in Aqueous Solution: Cation Exchange Separations with α-Hydroxyisobutyric Acid

NUCLEAR REACTIONS 249Bk(18O, 5n), (18O, 4n), E=99 MeV; measured reaction products, Eα, Iα. 258,259Lr; deduced T1/2, σ.


1990SC11      Z.Phys. A335, 421 (1990)

U.W.Scherer, W.Bruchle, M.Brugger, C.Frink, H.Gaggeler, G.Herrmann, J.V.Kratz, K.J.Moody, M.Schadel, K.Summerer, N.Trautmann, G.Wirth

Reactions of 40Ar with 233U, 235U, and 238U at the Barrier

NUCLEAR REACTIONS, ICPND 233,235,238U(40Ar, X), E ≈ 5.3 MeV/nucleon; measured residual yields for Z=86-98. 235U(40Ar, X), E ≈ 5.3 MeV/nucleon; measured Eα, Iα; deduced tentative decay chains for 233,235,238U(40Ar, xn) residues.

RADIOACTIVITY 270Ds, 269Ds, 272Ds, 271Ds, 275Ds, 274Ds; analyzed calculated Eα, α-decay T1/2; deduced tentative decay chains.


1990SU17      Phys.Rev. C42, 2546 (1990)

K.Summerer, W.Bruchle, D.J.Morrissey, M.Schadel, B.Szweryn, W.Yang

Target Fragmentation of Au and Th by 2.6 GeV Protons

NUCLEAR REACTIONS Th, 197Au(p, X), E=2.6 GeV; measured target-like fragment production σ for X=198Au to 145Eu. Radiochemical techniques, chemical separations. Empirical parametrization analysis, other data analyzed.

doi: 10.1103/PhysRevC.42.2546
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO0040.


1989GA19      Nucl.Phys. A502, 561c (1989)

H.W.Gaggeler, D.T.Jost, A.Turler, P.Armbruster, W.Bruchle, H.Folger, F.P.Hessberger, S.Hofmann, G.Munzenberg, V.Ninov, W.Reisdorf, M.Schadel, K.Summerer, J.V.Kratz, U.Scherer, M.E.Leino

Cold Fusion Reactions with 48Ca

NUCLEAR REACTIONS 209Bi, 197Au, 184W, 180Hf, 208Pb(48Ca, n), (48Ca, 2n), E=4.3-4.8 MeV/nucleon; measured reaction σ. Extra-push model analysis.

doi: 10.1016/0375-9474(89)90689-1
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1989HE13      Z.Phys. A333, 111 (1989)

F.P.Hessberger, H.Gaggeler, P.Armbruster, W.Bruchle, H.Folger, S.Hofmann, D.Jost, J.V.Kratz, M.E.Leino, G.Munzenberg, V.Ninov, M.Schadel, U.Scherer, K.Summerer, A.Turler, D.Ackermann

The New Nuclide 225U

NUCLEAR REACTIONS 180Hf(48Ca, X), E=4.24 MeV/nucleon; measured Eα, Iα; deduced evidence for 225U. Correlation techniques.

RADIOACTIVITY 225U(α) [from 180Hf(48Ca, X), E=4.24 MeV/nucleon]; measured Eα, Iα, T1/2. Correlation techniques.


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
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset13191.


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.


1989SC42      Radiochim.Acta 48, 171 (1989)

M.Schadel, W.Bruchle, E.Jager, E.Schimpf, J.V.Kratz, U.W.Scherer, H.P.Zimmermann

ARCA II - A New Apparatus for Fast, Repetitive HPLC Separations


1989SZ03      Radiochim.Acta 47, 33 (1989)

B.Szweryn, W.Brochle, B.Schausten, M.Schadel

Radiochemical Separations of Target-Like Reaction Products from Au-, Pt-, and Th-Targets After Irradiation with GeV Protons

NUCLEAR REACTIONS 197Au, 198Pt, 232Th(p, X), E=2.6 GeV; measured separated element chemical yields for Au, Pt, Ir, Os, Re, W, Ta, Hf, Lu, Eu. Chemical separation, sample assayed for characteristic γ-rays.


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
Citations: PlumX Metrics


1988JO08      Inorganica chimica acta 146, 255 (1988)

D.T.Jost, H.W.Gaggeler, C.H.Vogel, M.Schadel, E.Jager, B.Eichler, K.E.Gregorich, D.C.Hoffman

Search for lawrencium as a p-element using gas chromatography techniques

NUCLEAR REACTIONS 249Bk(18O, X)252Fm/254Fm/250Fm/260Lr/211Bi/249Cf/210FR/211Fr, E=101 MeV; measured reaction products using gaschromatography, Eα, Iα. 260Lr; deduced σ, T1/2.

doi: 10.1016/S0020-1693(00)80617-9
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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
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1988TU07      Z.Phys. A331, 363 (1988)

A.Turler, H.W.Gaeggeler, D.T.Jost, P.Armbruster, W.Bruchle, H.Folger, F.P.Hessberger, S.Hofmann, G.Munzenberg, V.Ninov, M.Schadel, K.Summerer, J.V.Kratz, U.Scherer

Determination of the Partial Electron Capture- and Spontaneous-Fission Half-Lives of 254No

NUCLEAR REACTIONS 208Pb(48Ca, 2n), E not given; measured Eα, Iα; deduced evidence for 254No.

RADIOACTIVITY 254No(α), (EC), (SF) [from 208Pb(48Ca, 2n)]; measured α-, SF-activities; deduced partial T1/2. Radiochemical techniques.


1987KE06      Z.Phys. A328, 255 (1987)

H.Keller, R.Bellwied, K.Lutzenkirchen, J.V.Kratz, W.Bruchle, H.Gaeggeler, K.J.Moody, M.Schadel, G.Wirth

Unusual Excitation-Energy Division in Quasi-Fission Reactions between 50Ti, 54Cr and 58Fe with 207,208Pb at the Barrier

NUCLEAR REACTIONS 207Pb(50Ti, X), (50Ti, F), E=4.85 MeV/nucleon; 208Pb(54Cr, X), (54Cr, F), E=4.9 MeV/nucleon; 208Pb(58Fe, X), (58Fe, F), E=5.02 MeV/nucleon; 209Bi(58Fe, X), (58Fe, F), E=5.15 MeV/nucleon; measured fragment mass, charge distributions, σ(Z, A), fission product γ-decay; deduced fission σ vs fragment Z.


1987MO29      Z.Phys. A328, 417 (1987)

K.J.Moody, W.Bruchle, M.Brugger, H.Gaggeler, B.Haefner, M.Schadel, K.Summerer, H.Tetzlaff, G.Herrmann, N.Kaffrell, J.V.Kratz, J.Rogowski, N.Trautmann, M.Skalberg, G.Skarnemark, J.Alstad, M.M.Fowler

New Nuclides: Neptunium-243 and Neptunium-244

RADIOACTIVITY 243,244Np(β-) [from 244Pu(136Xe, X), E=835 MeV]; measured Eγ, Iγ. 243Np level deduced J, T1/2, Iγ per decay. 244Np level deduced T1/2, possible, J, π, Iγ per decay. 244Pu deduced possible level.

NUCLEAR REACTIONS 244Pu(136Xe, X)238Np/239Np/240Np/240mNp/241Np, E=835 MeV; measured residual production σ.


1986GA06      Phys.Rev. C33, 1983 (1986)

H.Gaggeler, W.Bruchle, M.Brugger, M.Schadel, K.Summerer, G.Wirth, J.V.Kratz, M.Lerch, Th.Blaich, G.Herrmann, N.Hildebrand, N.Trautmann, D.Lee, K.J.Moody, K.E.Gregorich, R.B.Welch, G.T.Seaborg, D.C.Hoffman, W.R.Daniels, M.M.Fowler, H.R.von Gunten

Production of Cold Target-Like Fragments in the Reaction of 48Ca + 248Cm

NUCLEAR REACTIONS 248Cm(Ca, X)210Rn/211Rn/212Rn/219Rn/220Rn/221Rn/222Rn/221Ra/222Ra/223Ra/223Ac/224Ac/225Ac/226Ac/225Th/226Th/227Th/228Th/230U/237U/236Pu/238Pu/243Pu/245Pu/246Pu, E=248-263 MeV; measured residuals yields, σ vs mass; deduced production mechanism.

doi: 10.1103/PhysRevC.33.1983
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1986GL04      Z.Phys. A323, 451 (1986)

St.Glazek, M.Schadel

The Role of Mesonic Degrees of Freedom in Deep Inelastic Structure Functions of Nuclei

NUCLEAR STRUCTURE 2H, He, C, Ca, Ag, Be, Al, Fe, Au; calculated structure function ratio; deduced meson degrees of freedom role.


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
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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
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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
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1985AR02      Phys.Rev.Lett. 54, 406 (1985)

P.Armbruster, Y.K.Agarwal, W.Bruchle, M.Brugger, J.P.Dufour, H.Gaggeler, F.P.Hessberger, S.Hofmann, P.Lemmertz, G.Munzenberg, K.Poppensieker, W.Reisdorf, M.Schadel, K.-H.Schmidt, J.H.R.Schneider, W.F.W.Schneider, K.Summerer, D.Vermeulen, G.Wirth, A.Ghiorso, K.E.Gregorich, D.Lee, M.Leino, K.J.Moody, G.T.Seaborg, R.B.Welch, P.Wilmarth, S.Yashita, C.Frink, N.Greulich, G.Herrmann, U.Hickmann, N.Hildebrand, J.V.Kratz, N.Trautmann, M.M.Fowler, D.C.Hoffman, W.R.Daniels, H.R.von Gunten, H.Dornhofer

Attempts to Produce Superheavy Elements by Fusion of 48Ca with 248Cm in the Bombarding Energy Range of 4.5-5.2 MeV/u

NUCLEAR REACTIONS 248Cm(48Ca, X), E=4.5-5.2 MeV/nucleon; measured superheavy production σ upper limits vs T1/2. Different separation techniques.

doi: 10.1103/PhysRevLett.54.406
Citations: PlumX Metrics


1985HO13      Phys.Rev. C31, 1763 (1985)

D.C.Hoffman, M.M.Fowler, W.R.Daniels, H.R.von Gunten, D.Lee, K.J.Moody, K.Gregorich, R.Welch, G.T.Seaborg, W.Bruchle, M.Brugger, H.Gaggeler, M.Schadel, K.Summerer, G.Wirth, Th.Blaich, G.Herrmann, N.Hildebrand, J.V.Kratz, M.Lerch, N.Trautmann

Excitation Functions for Production of Heavy Actinides from Interactions of 40Ca and 48Ca Ions with 248Cm

NUCLEAR REACTIONS 248Cm(40Ca, X)244Bk/245Bk/246Bk/248Bk/248mBk/250Bk/245Cf/246Cf/248Cf/250Cf/252Cf/249Es/250Es/252Es/253Es/254Es/254mEs/250Fm/251Fm/252Fm/254Fm/256Fm, E=221-294 MeV; 248Cm(48Ca, X)245Bk/246Bk/248Bk/248mBk/250Bk/246Cf/248Cf/250Cf/252Cf/253Cf/254Cf/250Es/252Es/253Es/254Es/254mEs/252Fm/254Fm/255Fm/256Fm, E=223-318 MeV; measured residuals production σ(E).

doi: 10.1103/PhysRevC.31.1763
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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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2550.


1984GA06      Z.Phys. A316, 291 (1984)

H.Gaggeler, T.Sikkeland, G.Wirth, W.Bruchle, W.Bogl, G.Franz, G.Herrmann, J.V.Kratz, M.Schadel, K.Summerer, W.Weber

Probing Sub-Barrier Fusion and Extra-Push by Measuring Fermium Evaporation Residues in Different Heavy Ion Reactions

NUCLEAR REACTIONS 206,207Pb(40Ar, F), E ≤ 236 MeV; measured fission activity decay curve. 204,206,207,208Pb(40Ar, xn)242Fm/243Fm/244Fm/246Fm, E ≤ 236 MeV; 208Pb(40Ar, 4n), (40Ar, 2n)244Fm/246Fm, E ≤ 236 MeV; 206Pb(40Ar, 2n), 207Pb(40Ar, 3n)244Fm, E ≤ 236 MeV; 170Er(76Ge, 2n)244Fm, E=321-394 MeV; 160Gd(86Kr, 2n)244Fm, E=352-409 MeV; 110Pd(136Xe, 2n)244Fm, E=587-680 MeV; measured residuals production σ; deduced fusion barriers. Extra push, surface friction models.


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
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1981GA25      Nucl.Instrum.Methods 188, 367 (1981)

H.Gaggeler, W.Bruchle, J.V.Kratz, M.Schadel, K.Summerer, W.Weber, G.Wirth, G.Herrmann

A Rotating Wheel System for the Detection of Spontaneously Fissioning Nuclides from Heavy Ion Reactions

RADIOACTIVITY, Fission 252Cf(SF), 244Fm(SF) [from 207Pb(40Ar, 3n), E=199 MeV]; 242mAm(SF) [from 238U(238U, X), E=7.6 MeV/nucleon]; measured T1/2. Rotating wheel technique, catcher foil, fission tract detectors.

NUCLEAR REACTIONS 238U(238U, X), E=7.6 MeV/nucleon; 207Pb(40Ar, 3n), E=199 MeV; measured production σ(E) for 244Fm, 242Am. Rotating wheel technique, catcher foil, fission track detectors.


1981KR05      Nucl.Phys. A357, 437 (1981)

J.V.Kratz, J.Poitou, W.Bruchle, H.Gaggeler, M.Schadel, G.Wirth, R.Lucas

Primary Mass and Charge Distributions in the Reaction of 900 MeV 132Xe Ions with 197Au

NUCLEAR REACTIONS 197Au(132Xe, X), E=900 MeV; measured σ(fragment Z, mass) for 51 ≤ Z ≤ 87, missing mass, fragment velocities; deduced integral charge, mass distributions, preneutron emission σ(fragment Z, E, mass). Neutron, proton exchange correlations.

doi: 10.1016/0375-9474(81)90231-1
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1980GA24      Phys.Rev.Lett. 45, 1824 (1980)

H.Gaggeler, N.Trautmann, W.Bruchle, G.Herrmann, J.V.Kratz, P.Peuser, M.Schadel, G.Tittel, G.Wirth, H.Ahrens, H.Folger, G.Franz, K.Summerer, M.Zendel

Search for Superheavy Elements in the 238U +238U Reaction

NUCLEAR REACTIONS, Fission 238U(238U, X), (238U, F), E=8.6 MeV/nucleon; measured fragment E, spontaneous fission(fragment)(fragment)-coin; deduced superheavy production σ upper limit. Thick target.

doi: 10.1103/PhysRevLett.45.1824
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1980KR14      Z.Phys. A296, 141 (1980)

J.V.Kratz, W.Bruchle, H.Gaeggeler, M.Schadel, K.Summerer, G.Wirth

Fast A/Z Equilibration and Correlated Nucleon Exchange in Damped Collisions of 56Fe Ions with 209Bi

NUCLEAR REACTIONS 209Bi(56Fe, X), E=8.3 MeV/nucleon; analyzed average fragment mass to charge ratio, mass, charge variances ratio data; deduced fast charge equilibration, fully correlated nucleon exchange.

doi: 10.1007/BF01412655
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1979KR17      Nucl.Phys. A332, 477 (1979)

J.V.Kratz, W.Bruchle, G.Franz, M.Schadel, I.Warnecke, G.Wirth, M.Weis

Study of the N/Z Ratios of Light and Heavy Fragments from Collisions of 129Xe, 132Xe and 136Xe with 197Au Near the Interaction Barrier

NUCLEAR REACTIONS 197Au(129Xe, X), E ≤ 761 MeV; 197Au(132Xe, X), E ≤ 764 MeV; 197Au(136Xe, X), E ≤ 787 MeV; measured fragment production σ, missing mass; deduced charge, mass distributions. Damped collision model.

doi: 10.1016/0375-9474(79)90014-9
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