NSR Query Results

Output year order : Descending
Format : Normal

NSR database version of April 11, 2024.

Search: Author = P.A.Wilk

Found 36 matches.

Back to query form

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, T_1/2. 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
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0947. Data from this article have been entered in the XUNDL database. For more information, click here.

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, T_1/2, ground state quadrupole deformation, quasiparticle excitations, Q-values for different α decay chains. Comparison with other data.

doi: 10.1140/epja/i2012-12062-1
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0938.

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, T_1/2.

doi: 10.1088/1742-6596/312/4/082026
Citations: PlumX Metrics

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
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0884. Data from this article have been entered in the XUNDL database. For more information, click here.

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
Citations: PlumX Metrics

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, T_1/2.

RADIOACTIVITY ^293,294Ts, ^289,290Mc, ^285,286Nh, ²⁸²Rg, ²⁷⁸Mt, ²⁷⁴Bh(α); measured Eα, Iα, and half-lives. ²⁷⁰Db, ²⁸¹Rg(SF); measured TKE, and T_1/2.

doi: 10.1103/PhysRevLett.104.142502
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

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
Citations: PlumX Metrics

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

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

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

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

doi: 10.1103/PhysRevC.79.024603
Citations: PlumX Metrics

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

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

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

NUCLEAR REACTIONS ²³⁷Np(⁴⁸Ca, 3n)²⁸²Nh, E=244 MeV; measured Eα, production cross section and T_1/2.

doi: 10.1103/PhysRevC.76.011601
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0892. Data from this article have been entered in the XUNDL database. For more information, click here.

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

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

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

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

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

RADIOACTIVITY ²⁶⁸Db(SF); ²⁷²Bh, ²⁷⁶Mt, ²⁸⁰Rg, ²⁸⁴Nh, ²⁸⁸Mc(α); measured Eα, E(fragment), T_1/2.

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

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
Citations: PlumX Metrics

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

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

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

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

RADIOACTIVITY ²⁹⁴Og, ^290,291Lv, ^286,287Fl, ²⁸³Cn, ²⁷⁹Ds, ²⁷⁵Hs, ²⁷¹Sg(α) [from ²⁴⁵Cm, ²⁴⁹Cf(⁴⁸Ca, xn) and subsequent decay]; measured Eα, T_1/2. ²⁸²Cn, ²⁶⁷Rf(SF) [from α-decay of ²⁸⁶Rf and ²⁷¹Sg]; measured fission fragment spectra, T_1/2.

doi: 10.1103/PhysRevC.74.044602
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0856. Data from this article have been entered in the XUNDL database. For more information, click here.

2005DM03      Mendeleev Commun. 15, 1 (2005)

S.N.Dmitriev, Y.T.Oganessyan, V.K.Utyonkov, S.V.Shishkin, A.V.Yeremin, Y.V.Lobanov, Y.S.Tsyganov, V.I.Chepygin, E.A.Sokol, G.K.Vostokin, N.V.Aksenov, M.Hussonnois, M.G.Itkis, H.W.Gaggeler, D.Schumann, H.Bruchertseifer, R.Eichler, D.A.Shaughnessy, P.A.Wilk, J.M.Kenneally, M.A.Stoyer, J.F.Wild

Chemical identification of dubnium as a decay product of element 115 produced in the reaction ⁴⁸Ca + ²⁴³Am

NUCLEAR REACTIONS ²⁴³Am(⁴⁸Ca, 3n), E=247 MeV; measured super heavy element yield, Eα, Iα; analyzed production σ. Radiochemical experiment, identification of the long-lived decay product dubnium.

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

RADIOACTIVITY ²⁶⁸Db(SF); ²⁷²Bh, ²⁷⁶Mt, ²⁸⁰Rg, ²⁸⁴Nh, ²⁸⁸Mc(α); measured Eα, E(fragment), T_1/2.

doi: 10.1070/MC2005v015n01ABEH002077
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

2005OG02      Phys.Rev. C 72, 034611 (2005)

Yu.Ts.Oganessian, V.K.Utyonkov, S.N.Dmitriev, Yu.V.Lobanov, M.G.Itkis, A.N.Polyakov, Yu.S.Tsyganov, A.N.Mezentsev, A.V.Yeremin, A.A.Voinov, E.A.Sokol, G.G.Gulbekian, S.L.Bogomolov, S.Iliev, V.G.Subbotin, A.M.Sukhov, G.V.Buklanov, S.V.Shishkin, V.I.Chepigin, G.K.Vostokin, N.V.Aksenov, M.Hussonnois, K.Subotic, V.I.Zagrebaev, K.J.Moody, J.B.Patin, J.F.Wild, M.A.Stoyer, N.J.Stoyer, D.A.Shaughnessy, J.M.Kenneally, P.A.Wilk, R.W.Lougheed, H.W.Gaggeler, D.Schumann, H.Bruchertseifer, R.Eichler

Synthesis of elements 115 and 113 in the reaction ²⁴³Am + ⁴⁸Ca

NUCLEAR REACTIONS ²⁴³Am(⁴⁸Ca, 3n), (⁴⁸Ca, 4n), E=248, 253 MeV; measured delayed Eα, αα-coin; deduced σ.

RADIOACTIVITY ^287,288Mc, ^283,284Nh, ^279,280Rg, ^275,276Mt, ²⁷²Bh(α) [from ²⁴³Am(⁴⁸Ca, xn) and subsequent decay]; measured Eα, T_1/2; deduced Qα. ^267,268Db(SF); measured T_1/2.

doi: 10.1103/PhysRevC.72.034611
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0890. Data from this article have been entered in the XUNDL database. For more information, click here.

2005OG03      Eur.Phys.J. A 25, Supplement 1, 589 (2005)

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

New elements from Dubna

NUCLEAR REACTIONS ²³⁸U(⁴⁸Ca, 3n), (⁴⁸Ca, 4n), ²³³U, ²⁴²Pu(⁴⁸Ca, 2n), (⁴⁸Ca, 3n), (⁴⁸Ca, 4n), E ≈ 230-250 MeV; measured σ.

RADIOACTIVITY ²⁹⁴Og, ^{290,291,292,293}Lv, ^287,288,289Fl, ²⁸⁵Cn, ²⁷⁵Hs(α); ²⁸⁶Fl, ²⁸³Cn, ²⁷⁹Ds, ²⁷¹Sg(α), (SF);^282,284Cn, ²⁸¹Ds, ²⁶⁷Rf(SF); measured Eα, T_1/2, branching ratios.

doi: 10.1140/epjad/i2005-06-134-9
Citations: PlumX Metrics

2005ST16      Nucl.Instrum.Methods Phys.Res. A543, 509 (2005)

L.Stavsetra, K.E.Gregorich, J.Alstad, H.Breivik, K.Eberhardt, C.M.Folden III, T.N.Ginter, M.Johansson, U.W.Kirbach, D.M.Lee, M.Mendel, L.A.Omtvedt, J.B.Patin, G.Skarnemark, R.Sudowe, P.A.Wilk, P.M.Zielinski, H.Nitsche, D.C.Hoffman, J.P.Omtvedt

Liquid-scintillation detection of preseparated ²⁵⁷Rf with the SISAK-system

NUCLEAR REACTIONS ²⁰⁸Pb(⁵⁰Ti, n), E=237 MeV; measured delayed αα-coin; deduced evidence for ²⁵⁷Rf. Gas-filled separator, fast liquid-liquid extraction system.

doi: 10.1016/j.nima.2004.12.010
Citations: PlumX Metrics

2005ST38      Eur.Phys.J. A 25, Supplement 1, 595 (2005)

M.A.Stoyer, J.B.Patin, J.M.Kenneally, K.J.Moody, D.A.Shaughnessy, N.J.Stoyer, J.F.Wild, P.A.Wilk, V.K.Utyonkov, Yu.Ts.Oganessian

Random probability analysis of recent ⁴⁸Ca experiments

NUCLEAR REACTIONS ²⁴⁵Cm(⁴⁸Ca, 2n), ^242,244Pu, ²⁴³Am, ²⁴⁵Cm, ²⁴⁹Cf(⁴⁸Ca, 3n), ^242,244Pu(⁴⁸Ca, 4n), ²⁴⁴Pu(⁴⁸Ca, 5n), E not given; calculated probabilities for random event observation.

doi: 10.1140/epjad/i2005-06-125-x
Citations: PlumX Metrics

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
Citations: PlumX Metrics

2004OG12      Phys.Rev. C 70, 064609 (2004); Erratum Phys.Rev. C 71, 029902 (2005)

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

Measurements of cross sections and decay properties of the isotopes of elements 112, 114, and 116 produced in the fusion reactions ^{233, 238}U, ²⁴²Pu, and ²⁴⁸Cm + ⁴⁸Ca

NUCLEAR REACTIONS ^233,238U, ²⁴²Pu, ²⁴⁸Cm(⁴⁸Ca, 2n), (⁴⁸Ca, 3n), (⁴⁸Ca, 4n), (⁴⁸Ca, 5n), E^* ≈ 25-55 MeV; measured excitation functions. Comparison with model predictions.

RADIOACTIVITY ²⁷¹Sg, ²⁷⁵Hs, ²⁷⁹Ds, ^282,283,285Cn, ^{286,287,288,289}Fl, ^292,293Lv(α); ²⁶⁷Rf, ²⁷¹Sg, ^279,281Ds, ²⁸⁴Cn, ²⁸⁶Fl(SF) [from ^233,238U, ²⁴²Pu, ²⁴⁸Cm(⁴⁸Ca, xn) and subsequent decay]; measured Eα, T_1/2. Comparison with model predictions.

doi: 10.1103/PhysRevC.70.064609
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0889.

2003GI05      Phys.Rev. C 67, 064609 (2003); Erratum Phys.Rev. C 68, 029901 (2003)

T.N.Ginter, K.E.Gregorich, W.Loveland, D.M.Lee, U.W.Kirbach, R.Sudowe, C.M.Folden III, J.B.Patin, N.Seward, P.A.Wilk, P.M.Zielinski, K.Aleklett, R.Eichler, H.Nitsche, D.C.Hoffman

Confirmation of production of element 110 by the ²⁰⁸Pb(⁶⁴Ni, n) reaction

NUCLEAR REACTIONS ²⁰⁸Pb(⁶⁴Ni, n), E=312.5, 315, 317.5 MeV: measured delayed (recoil)α-coin; deduced production σ.

RADIOACTIVITY ²⁷¹Ds, ²⁶⁷Hs, ²⁶³Sg, ²⁵⁹Rf, ²⁵⁵No(α) [from ²⁰⁸Pb(⁶⁴Ni, n) and subsequent decay]; measured Eα.

doi: 10.1103/PhysRevC.67.064609
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1698.

2003GR26      Eur.Phys.J. A 18, 633 (2003)

K.E.Gregorich, T.N.Ginter, W.Loveland, D.Peterson, J.B.Patin, C.M.Folden III, D.C.Hoffman, D.M.Lee, H.Nitsche, J.P.Omtvedt, L.A.Omtvedt, L.Stavsetra, R.Sudowe, P.A.Wilk, P.M.Zielinski, K.Aleklett

Cross-section limits for the ²⁰⁸Pb(⁸⁶Kr, n)²⁹³118 reaction

NUCLEAR REACTIONS ²⁰⁸Pb(⁸⁶Kr, X), E=449 MeV; measured evaporation residue yields; deduced no evidence for ²⁹³Og. ²⁰⁸Pb(⁸⁶Kr, n), E=449 MeV; deduced production σ upper limit.

doi: 10.1140/epja/i2002-10165-x
Citations: PlumX Metrics

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 T_1/2. Radiochemical separation.

doi: 10.1524/ract.91.1.59.19010
Citations: PlumX Metrics

2002KI25      Nucl.Instrum.Methods Phys.Res. A484, 587 (2002)

U.W.Kirbach, C.M.Folden III, T.N.Ginter, K.E.Gregorich, D.M.Lee, V.Ninov, J.P.Omtvedt, J.B.Patin, N.K.Seward, D.A.Strellis, R.Sudowe, A.Turler, P.A.Wilk, P.M.Zielinski, D.C.Hoffman, H.Nitsche

The Cryo-Thermochromatographic Separator (CTS): A new rapid separation and α-detection system for on-line chemical studies of highly volatile osmium and hassium (Z=108) tetroxides

doi: 10.1016/S0168-9002(01)01990-8
Citations: PlumX Metrics

2002NI10      Phys.Rev.Lett. 89, 039901 (2002); see also 1999Ni03

V.Ninov, K.E.Gregorich, W.Loveland, A.Ghiorso, D.C.Hoffman, D.M.Lee, H.Nitsche, W.J.Swiatecki, U.W.Kirbach, C.A.Laue, J.L.Adams, J.B.Patin, D.A.Shaughnessy, D.A.Strellis, P.A.Wilk

Editorial Note: Observation of Superheavy Nuclei Produced in the Reaction of ⁸⁶Kr with ²⁰⁸Pb

doi: 10.1103/PhysRevLett.89.039901
Citations: PlumX Metrics

2002SH02      Phys.Rev. C65, 024612 (2002)

D.A.Shaughnessy, K.E.Gregorich, J.L.Adams, M.R.Lane, C.A.Laue, D.M.Lee, C.A.McGrath, V.Ninov, J.B.Patin, D.A.Strellis, E.R.Sylwester, P.A.Wilk, D.C.Hoffman

Electron-Capture Delayed Fission Properties of ²⁴⁴Es

RADIOACTIVITY ²⁴⁴Es(EC) [from ²³⁷Np(¹²C, 5n)]; measured EC-delayed fission T_1/2, Eα, fission fragment energies, mass distribution; deduced delayed fission probability.

NUCLEAR REACTIONS ²³⁷Np(¹²C, 5n), E=81 MeV; measured σ.

doi: 10.1103/PhysRevC.65.024612
Citations: PlumX Metrics

2001NI02      Nucl.Phys. A682, 98c (2001)

V.Ninov, K.E.Gregorich, T.N.Ginter, F.P.Hessberger, R.Krucken, D.M.Lee, W.Loveland, W.D.Myers, J.Patin, M.W.Rowe, N.K.Seward, W.J.Swiatecki, A.Turler, P.A.Wilk

Production and Structure of the Heaviest Elements

doi: 10.1016/S0375-9474(00)00627-8
Citations: PlumX Metrics

2001SH09      Phys.Rev. C63, 037603 (2001)

D.A.Shaughnessy, K.E.Gregorich, M.R.Lane, C.A.Laue, D.M.Lee, C.A.McGrath, D.A.Strellis, E.R.Sylwester, P.A.Wilk, D.C.Hoffman

Electron-Capture Delayed Fission Probabilities of ²⁴⁸Es and ²⁴⁶Es

RADIOACTIVITY ^246,248Es(EC) [from ²⁴⁹Cf(p, xn)]; measured EC-delayed fission probability. Systematics of fission probability vs Q(EC) discussed.

doi: 10.1103/PhysRevC.63.037603
Citations: PlumX Metrics

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
Citations: PlumX Metrics

2000LA25      Phys.Rev. C61, 067603 (2000)

C.A.Laue, K.E.Gregorich, R.Sudowe, J.L.Adams, M.R.Lane, D.M.Lee, C.A.McGrath, D.A.Shaughnessy, D.A.Strellis, E.R.Sylwester, P.A.Wilk, D.C.Hoffman

Half-Life of ²³²Pu and Excitation Function for the ²³³U (³He, 4n)²³²Pu Reaction

NUCLEAR REACTIONS ²³³U(³He, 4n), E=28-47 MeV; measured excitation function.

RADIOACTIVITY ²³²Pu(α) [from ²³³U(³He, 4n)]; measured T_1/2.

doi: 10.1103/PhysRevC.61.067603
Citations: PlumX Metrics

2000SH10      Phys.Rev. C61, 044609 (2000)

D.A.Shaughnessy, J.L.Adams, K.E.Gregorich, M.R.Lane, C.A.Laue, D.M.Lee, C.A.McGrath, J.B.Patin, D.A.Strellis, E.R.Sylwester, P.A.Wilk, D.C.Hoffman

Electron-Capture Delayed Fission Properties of ²⁴²Es

RADIOACTIVITY ²⁴²Es(EC), (α) [from ²³³U(¹⁴N, 5n)]; measured ec-delayed fission T_1/2, fragment mass yields, total kinetic energies; deduced delayed fission probability.

doi: 10.1103/PhysRevC.61.044609
Citations: PlumX Metrics

2000SY01      Radiochim.Acta 88, 837 (2000)

E.R.Sylwester, K.E.Gregorich, D.M.Lee, B.Kadkhodayan, A.Turler, J.L.Adams, C.D.Kacher, M.R.Lane, C.A.Laue, C.A.McGrath, D.A.Shaughnessy, D.A.Strellis, P.A.Wilk, D.C.Hoffman

On-line gas chromatographic studies of Rf, Zr, and Hf bromides

RADIOACTIVITY ⁹⁸Zr(β^-);162Hf(EC); measured Eγ, Iγ. ²⁶¹Rf(α); measured Eα, Iα, half-life.

2000WI15      Phys.Rev.Lett. 85, 2697 (2000)

P.A.Wilk, K.E.Gregorich, A.Turler, C.A.Laue, R.Eichler, V.Ninov, J.L.Adams, U.W.Kirbach, M.R.Lane, D.M.Lee, J.B.Patin, D.A.Shaughnessy, D.A.Strellis, H.Nitsche, D.C.Hoffman

Evidence for New Isotopes of Element 107: ²⁶⁶Bh and ²⁶⁷Bh

NUCLEAR REACTIONS ²⁴⁹Bk(²²Ne, 4n), (²²Ne, 5n), E ≈ 117, 123 MeV; measured α spectra, αα-coin following residual nucleus decay; deduced production σ.

RADIOACTIVITY ^266,267Bh(α) [from ²⁴⁹Bk(²²Ne, xn)]; measured Eα, T_1/2.

doi: 10.1103/PhysRevLett.85.2697
Citations: PlumX Metrics

1999LA14      Phys.Rev. C59, 3086 (1999)

C.A.Laue, K.E.Gregorich, R.Sudowe, M.B.Hendricks, J.L.Adams, M.R.Lane, D.M.Lee, C.A.McGrath, D.A.Shaughnessy, D.A.Strellis, E.R.Sylwester, P.A.Wilk, D.C.Hoffman

New Plutonium Isotope: ²³¹Pu

NUCLEAR REACTIONS ²³³U(³He, 5n), E=42-47 MeV; measured αα-coin following residual nucleus decay; deduced evidence for ²³¹Pu. Gas transport, chemical separation.

RADIOACTIVITY ²³¹Pu(α), (EC); measured Eα, T_1/2, branching ratio; deduced logft, Q(α).

doi: 10.1103/PhysRevC.59.3086
Citations: PlumX Metrics

1999NI03      Phys.Rev.Lett. 83, 1104 (1999); Erratum Phys.Rev.Lett. 89, 039901 (2002); see also 2002GrZZ

V.Ninov, K.E.Gregorich, W.Loveland, A.Ghiorso, D.C.Hoffman, D.M.Lee, H.Nitsche, W.J.Swiatecki, U.W.Kirbach, C.A.Laue, J.L.Adams, J.B.Patin, D.A.Shaughnessy, D.A.Strellis, P.A.Wilk

Observation of Superheavy Nuclei Produced in the Reaction of ⁸⁶Kr with ²⁰⁸Pb

NUCLEAR REACTIONS ²⁰⁸Pb(⁸⁶Kr, n), E=449 MeV; measured α-spectra, (recoil)α-, αα-coin following residual nucleus decay, production σ; deduced evidence for ²⁹³Og, ²⁸⁹Lv, ²⁸⁵Fl, ²⁸¹Cn, ²⁷⁷Ds, ²⁷³Hs, ²⁶⁹Sg. Gas-filled separator.

RADIOACTIVITY ²⁹³Og, ²⁸⁹Lv, ²⁸⁵Fl, ²⁸¹Cn, ²⁷⁷Ds, ²⁷³Hs(α) [from ²⁰⁸Pb(⁸⁶Kr, n) and subsequent α-decay]; measured Eα, T_1/2.

doi: 10.1103/PhysRevLett.83.1104
Citations: PlumX Metrics

1998LA30      Phys.Rev. C58, 3413 (1998)

M.R.Lane, K.E.Gregorich, D.M.Lee, B.Wierczinski, C.A.McGrath, M.B.Hendricks, D.A.Shaughnessy, D.A.Strellis, E.R.Sylwester, P.A.Wilk, D.C.Hoffman

Production Cross Sections of ₁₀₅²⁶¹Ha from the ²⁵⁰Cf(¹⁵N, 4n) and ²⁴³Am(²²Ne, 4n) Reactions

NUCLEAR REACTIONS, ICPND ²⁵⁰Cf(¹⁵N, 4n), E=84 MeV; ²⁴³Am(²²Ne, 4n), E=116 MeV; measured α-spectra following residual decay; deduced production σ.

doi: 10.1103/PhysRevC.58.3413
Citations: PlumX Metrics

1997WI15      Phys.Rev. C56, 1626 (1997); Erratum Phys.Rev. C58, 1352 (1998)

P.A.Wilk, K.E.Gregorich, M.B.Hendricks, M.R.Lane, D.M.Lee, C.A.McGrath, D.A.Shaughnessy, D.A.Strellis, E.R.Sylwester, D.C.Hoffman

Improved Half-Life Measurement of ²²⁴Pa and Its ²⁰⁹Bi(¹⁸O, 3n)²²⁴Pa Production Cross Section

RADIOACTIVITY ²²⁴Pa(α) [from ²⁰⁹Bi(¹⁸O, 3n), E=111 MeV]; measured Eα, T_1/2.

NUCLEAR REACTIONS, ICPND ²⁰⁹Bi(¹⁸O, 3n), E=111 MeV; measured Eα; deduced ²²⁴Pa production σ.

doi: 10.1103/PhysRevC.56.1626
Citations: PlumX Metrics