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NSR database version of May 10, 2024.

Search: Author = P.Kuusiniemi

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2022BR08      Phys.Rev. C 106, 014602 (2022)

A.Bronis, F.P.Hessberger, S.Antalic, B.Andel, D.Ackermann, S.Heinz, S.Hofmann, J.Khuyagbaatar, B.Kindler, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, K.Nishio, A.G.Popeko, B.Streicher, B.Sulignano, J.Uusitalo, M.Venhart, A.V.Yeremin

Decay studies of new isomeric states in 255No

RADIOACTIVITY 250Fm, 252,254,255No(α)[from 208Pb(48Ca, X), E=213.6, 218.4 MeV]; measured Eα. 255mNo(IT); measured Eγ, γ(ce)-coin, γ(ER)-coin; deduced levels, three micro-sec isomers in 255No, J, π, T1/2, multipolarities, Nilsson configurations. Comparison with level scheme of 257Rf from the decay of its isomer, and with theoretical calculations based on the mean-field models. 253mNo, 255mRf, 257mRf; deduced Nilsson configurations of high-K 3-qp isomeric states in N=151 and N=153 isotopes. Systematics of experimental and theoretical single-particle states in N=153 isotones of 247Pu, 249Cm, 251Cf, 253Fm, 255No, 257Rf, 259Sg, 261Hs.

doi: 10.1103/PhysRevC.106.014602
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2017BA24      Phys.Atomic Nuclei 80, 446 (2017); Yad.Fiz. 80, 230 (2017)

I.R.Barabanov, L.B.Bezrukov, A.V.Veresnikova, Yu.M.Gavrilyuk, A.M.Gangapshev, V.Yu.Grishina, V.I.Gurentsov, V.P.Zavarzina, V.V.Kazalov, S.D.Krokhaleva, V.V.Kuzminov, A.S.Kurlovich, B.K.Lubsandorzhiev, S.B.Lubsandorzhiev, A.K.Mezhokh, V.P.Morgalyuk, P.Yu.Naumov, G.Ya.Novikova, V.B.Petkov, A.M.Pshukov, A.Yu.Sidorenkov, V.V.Sinev, Sh.I.Umerov, E.A.Yanovich, T.Enquist, P.Kuusiniemi, J.Joutsenvaara, A.Virkajarvi

Large-volume detector at the Baksan Neutrino Observatory for studies of natural neutrino fluxes for purposes of geo- and astrophysics

doi: 10.1134/S1063778817030036
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2016AN10      Phys.Rev. C 93, 064316 (2016)

B.Andel, A.N.Andreyev, S.Antalic, F.P.Hessberger, D.Ackermann, S.Hofmann, M.Huyse, Z.Kalaninova, B.Kindler, I.Kojouharov, P.Kuusiniemi, B.Lommel, K.Nishio, R.D.Page, B.Sulignano, P.Van Duppen

Short-lived isomers in 192Po and 194Po

NUCLEAR REACTIONS 141Pr(56Fe, 2np), E=259 MeV; 144Sm(51V, 2np), E=235 MeV; measured reaction products, Eγ, Iγ, γγ-coin, cross sections, half-lives of isomers by (ER)γα and (ER)γγα correlations using SHIP focal plane detectors at GSI. 192,194Po; deduced levels, J, π, energies of isomeric state, multipolarity, B(E1) and B(E3) values for 192Po. Discussed systematics of 11- isomers, B(E1) and B(E3) values in even-A Po and Pb isotopes.

doi: 10.1103/PhysRevC.93.064316
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2013AN13      Phys.Rev.Lett. 110, 242502 (2013)

A.N.Andreyev, M.Huyse, P.Van Duppen, C.Qi, R.J.Liotta, S.Antalic, D.Ackermann, S.Franchoo, F.P.Hessberger, S.Hofmann, I.Kojouharov, B.Kindler, P.Kuusiniemi, S.R.Lesher, B.Lommel, R.Mann, K.Nishio, R.D.Page, B.Streicher, S.Saro, B.Sulignano, D.Wiseman, R.A.Wyss

Signatures of the Z = 82 Shell Closure in α-Decay Process

RADIOACTIVITY 186Po, 182Pb, 178Hg, 174Pt(α) [from 144Sm(46Ti, X)190Po, E=230 MeV, 190Po(4n)]; measured decay products, Eα, Iα; deduced σ, identification of 186Po, the α-particle formation probabilities.

doi: 10.1103/PhysRevLett.110.242502
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2013JA06      Phys.Rev. C 87, 054320 (2013)

U.Jakobsson, S.Juutinen, J.Uusitalo, M.Leino, K.Auranen, T.Enqvist, P.T.Greenlees, K.Hauschild, P.Jones, R.Julin, S.Ketelhut, P.Kuusiniemi, M.Nyman, P.Peura, P.Rahkila, P.Ruotsalainen, J.Saren, C.Scholey, J.Sorri

Spectroscopy of the proton drip-line nucleus 203Fr

NUCLEAR REACTIONS 169Tm(40Ar, 6n), E=205 MeV; measured reaction products, Eγ, Iγ, Eα, Iα, E(ce), I(ce), (recoils)α-, (recoils)γ-, (ce)γ-, (ce)α-coin, T1/2 using RITU separator, GREAT spectrometer and JUROGAM array at JYFL facility. 203Fr; deduced high-spin levels, J, π, multipolarity, B(M2), B(E3), configuration. Recoil-decay tagging (RDT) technique. 169Tm, 203,204Rn, 204Fr; observed prompt γ rays. Systematics of low-lying negative-parity states in 203,205,207,209,211Fr together with yrast positive-parity states in 198,200,202,204,206,208,210,212Rn.

RADIOACTIVITY 203Fr, 199At(α)[from 169Tm(40Ar, 6n)203Fr, E=205 MeV]; measured Eγ, Iγ, Eα, Iα, E(ce), I(ce), (recoils)α-, (recoils)γ-, (recoils)(ce)-, γγ-, (ce)α-, (ce)γ-coin, T1/2, α branching ratio using RITU separator, GREAT spectrometer and JUROGAM array at JYFL. 203Fr, 199At, 195Bi; deduced levels, J, π. 198At, 202,204Fr; measured Eα, T1/2. Systematics of 13/2+ and 1/2+ states in N=102-126 Bi, At and Fr nuclei. 199,200Po, 200,201At, 202,203,204Rn(α); measured α spectrum.

doi: 10.1103/PhysRevC.87.054320
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2012HE09      Eur.Phys.J. A 48, 75 (2012)

F.P.Hessberger, S.Antalic, D.Ackermann, Z.Kalaninova, S.Heinz, S.Hofmann, B.Streicher, B.Kindler, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, K.Nishio, S.Saro, B.Sulignano, M.Venhart

Alpha-gamma decay studies of 253No and its daughter products 253Md , 249Fm

RADIOACTIVITY 253No(α), (β+), (EC)[from 207Pb(48Ca, 2n)], 249Fm, 253Md(α)[from 253No]; measured Eα, Iα, Eγ, Iγ, αγ-coin, ER. 249Es, 249Fm, 253Md, 253No deduced levels, J, π, γ transitions, α branching ratios calculated α-decay spectrum using GEANT4. Compared with data.

doi: 10.1140/epja/i2012-12075-8
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2012JA01      Phys.Rev. C 85, 014309 (2012)

U.Jakobsson, J.Uusitalo, S.Juutinen, M.Leino, T.Enqvist, P.T.Greenlees, K.Hauschild, P.Jones, R.Julin, S.Ketelhut, P.Kuusiniemi, M.Nyman, P.Peura, P.Rahkila, P.Ruotsalainen, J.Saren, C.Scholey, J.Sorri

Recoil-decay tagging study of 205Fr

NUCLEAR REACTIONS 169Tm(40Ar, 4n), E=180 MeV; measured Eγ, Iγ, ce, delayed γ, γγ-, αγ-, γ(particle)-, ceγ-coin, γ(t), γ(θ), half-lives of isomers, recoil decay tagging method using JUROGAM array and GREAT spectrometer at JYFL. 205Fr; deduced levels, J, π, bands, isomers, configurations. Systematics of negative-parity states in odd-mass (N=118-126) francium nuclei and yrast and near-yrast positive-parity states in their even-mass (N=112-126) radon isotones.

RADIOACTIVITY 205Fr(IT)[from 169Tm(40Ar, 4n), E=180 MeV]; measured Eγ, Iγ, ce; deduced levels, J, π, isomer half-life. 200At, 204,205Fr(α); measured Eα, ce. 201At, 206Fr, 204,205,206Rn(α); measured Eα.

doi: 10.1103/PhysRevC.85.014309
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2011AN13      Eur.Phys.J. A 47, 62 (2011)

S.Antalic, F.P.Hessberger, D.Ackermann, S.Heinz, S.Hofmann, Z.Kalaninova, B.Kindler, J.Khuyagbaatar, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, K.Nishio, S.Saro, B.Streicher, B.Sulignano, M.Venhart

Isomeric states in 253No and 253Fm

RADIOACTIVITY 253Md, 253No(EC), (β+)[from 207Pb(48Ca, 2n), E=218.4 MeV]; measured Eα, Iα, Eγ, Iγ(t), delayed αγ-coin, X-rays, Ex, Ix(t), Xγ-coin, βγ-coin, γγ-coin. 253No deduced isomer decay T1/2, transition multipolatirities, levels, rotational band, ICC. 253Fm deduced levels, J, π, ICC, isomeric transition.

doi: 10.1140/epja/i2011-11062-y
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2011PA24      Phys.Rev. C 84, 034308 (2011)

R.D.Page, A.N.Andreyev, D.R.Wiseman, P.A.Butler, T.Grahn, P.T.Greenlees, R.-D.Herzberg, M.Huyse, G.D.Jones, P.M.Jones, D.T.Joss, R.Julin, S.Juutinen, H.Kankaanpaa, A.Keenan, H.Kettunen, P.Kuusiniemi, M.Leino, M.Muikku, P.Nieminen, P.Rahkila, G.I.Rainovski, C.Scholey, J.Uusitalo, K.Van de Vel, P.Van Duppen

In-beam conversion-electron spectroscopy of 180Hg

NUCLEAR REACTIONS 147Sm(36Ar, 3n), E=168 MeV; measured E(ce), I(ce) using; Silicon Array Conversion Electron Detection (SACRED) spectrometer; deduced K/L ratios. 180Hg; deduced levels, J, π, multipolarities.

doi: 10.1103/PhysRevC.84.034308
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2010AN08      Eur.Phys.J. A 43, 35 (2010)

S.Antalic, F.P.Hessberger, S.Hofmann, D.Ackermann, S.Heinz, B.Kindler, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, S.Saro

Studies of neutron-deficient mendelevium isotopes at SHIP

NUCLEAR REACTIONS 209Bi(40Ar, 2n), (40Ar, 3n), E=187, 198 MeV; measured Eγ, Iγ, Eα, Iα, αγ-, αα-coin; deduced σ. 242Es, 243Es, 246Fm, 246,247Md; deduced levels, J, π, Q, branching ratios, T1/2. Comparison with other data and calculations.

RADIOACTIVITY 242,243Es, 246,247Md(α), (SF); 246Md(EC) [from 209Bi(40Ar, 2n), (40Ar, 3n), E=187, 198 MeV and subsequent decays]; measured Eγ, Iγ, Eα, Iα, αγ-, αα-coin; deduced Q, branching ratios, T1/2. Comparison with other data and calculations.

doi: 10.1140/epja/i2009-10896-0
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2010HE10      Eur.Phys.J. A 43, 55 (2010)

F.P.Hessberger, S.Antalic, B.Sulignano, D.Ackermann, S.Heinz, S.Hofmann, B.Kindler, J.Khuyagbaatar, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, K.Nishio, A.G.Popeko, S.Saro, B.Streicher, J.Uusitalo, M.Venhart, A.V.Yeremin

Decay studies of K isomers in 254No

NUCLEAR REACTIONS 208Pb(48Ca, 2n), E=213.6, 218.4 MeV; measured Eγ, Iγ, Eα, Iα, E(ce), I(ce), γγ-, γ(ce)-coin. 254No; deduced branching ratios, bands, levels, J, π, T1/2, configurations.

RADIOACTIVITY 254Md, 254No(α), (EC) [from 208Pb(48Ca, 2n), E=213.6, 218.4 MeV]; measured Eγ, Iγ, Eα, Iα, E(ce), I(ce), γγ-, γ(ce)-coin; deduced branching ratios, bands, levels, J, π, T1/2, configurations.

doi: 10.1140/epja/i2009-10899-9
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2010ST14      Eur.Phys.J. A 45, 275 (2010)

B.Streicher, F.P.Hessberger, S.Antalic, S.Hofmann, D.Ackermann, S.Heinz, B.Kindler, J.Khuyagbaatar, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, S.Saro, B.Sulignano, J.Uusitalo, M.Venhart

Alpha-gamma decay studies of 261Sg and 257Rf

NUCLEAR REACTIONS 208Pb(54Cr, n), (54Cr, 2n), E=254-281 MeV; 208Pb(54Cr, 2n), E=258 MeV; measured E(residue), I(residue, θ), Eα, Iα(θ), Eγ, Iγ; deduced σ.

RADIOACTIVITY 255Fm, 257No, 257Rf, 261Sg(α); measured Eα, Iα, Eγ, Iγ, γγ-coin, αγ-coin, E(K X-rays). 251Cf, 253Fm, 257Rf deduced levels, J, π; 257Rf isomer deduced T1/2, decay scheme.

COMPILATION N=151, 153; compiled low-lying Nilsson levels; compared to Parkhomenko's calculations.

doi: 10.1140/epja/i2010-11005-2
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2009HE20      Eur.Phys.J. A 41, 145 (2009)

F.P.Hessberger, S.Hofmann, B.Streicher, B.Sulignano, S.Antalic, D.Ackermann, S.Heinz, B.Kindler, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, A.G.Popeko, S.Saro, J.Uusitalo, A.V.Yeremin

Decay properties of neutron-deficient isotopes of elements from Z = 101 to Z = 108

NUCLEAR REACTIONS 207Pb(54Cr, n), (54Cr, 2n), 208Pb(58Fe, n), (54Cr, 2n), 209Bi(54Cr, n), (50Ti, n), (50Ti, 2n), (48Ca, 4n), E not given; measured Eα, Iα, Eγ, (fragment)α-coin, αψ-coin, σ; deduced decay chain properties, T1/2, levels, J, π. Comparison with other data and calculations.

RADIOACTIVITY 249Md, 253Lr, 257,258Db, 259,260Sg, 262Bh, 265Hs(α), (SF), (EC); measured Eα, Iα, T1/2; deduced levels, J, π. Analysis of decay chains and production routes. Comparison with other data and calculations.

doi: 10.1140/epja/i2009-10826-2
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2009HE23      Eur.Phys.J. A 42, 333 (2009)

R.-D.Herzberg, S.Moon, S.Eeckhaudt, P.T.Greenlees, P.A.Butler, T.Page, A.V.Afanasjev, N.Amzal, J.E.Bastin, F.Becker, M.Bender, B.Bruyneel, J.F.C.Cocks, I.G.Darby, O.Dorvaux, K.Eskola, J.Gerl, T.Grahn, C.Gray-Jones, N.J.Hammond, K.Hauschild, P.-H.Heenen, K.Helariutta, A.Herzberg, F.Hessberger, M.Houry, A.Hurstel, R.D.Humphreys, G.D.Jones, P.M.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, H.Kettunen, T.L.Khoo, W.Korten, P.Kuusiniemi, Y.LeCoz, M.Leino, A.-P.Leppanen, C.J.Lister, R.Lucas, M.Muikku, P.Nieminen, M.Nyman, R.D.Page, T.Page, J.Pakarinen, A.Pritchard, P.Rahkila, P.Reiter, M.Sandzelius, J.Saren, Ch.Schlegel, C.Scholey, Ch.Theisen, W.H.Trzaska, J.Uusitalo, A.Wiens, H.J.Wollersheim

Structure of rotational bands in 253No

NUCLEAR REACTIONS 207Pb(48Ca, 2n), E=219 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin with JUROGRAM and RITU; analyzed conversion electron spectra from SACRED detector. 253No; deduced T1/2, J, π, level energies, multipolarities, branching ratios. Comparison with rotational model.

doi: 10.1140/epja/i2009-10855-9
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2008AN16      Eur.Phys.J. A 38, 219 (2008)

S.Antalic, F.P.Hessberger, S.Hofmann, D.Ackermann, S.Heinz, B.Kindler, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, K.Nishio, S.Saro, B.Streicher, B.Sulignano, M.Venhart

Decay studies of neutron-deficient lawrencium isotopes

RADIOACTIVITY 250,251Md, 254,255,256Lr(EC), (α) [from 209Bi(48Ca, xn), E=214-244 MeV and subsequent decays]; measured Eα, Iα, conversion electrons, Eγ, Iγ, γa-, (ce)a-coin, T1/2. 250Md; deduced levels, J, π, T1/2.

NUCLEAR REACTIONS 209Bi(48Ca, xn)255Lr/256Lr, E=214, 218 MeV; measured σ.

doi: 10.1140/epja/i2008-10665-7
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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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2007HO14      Int.J.Mod.Phys. E16, 937 (2007)

S.Hofmann, D.Ackermann, S.Antalic, H.G.Burkhard, V.F.Comas, R.Dressler, Z.Gan, S.Heinz, J.A.Heredia, F.P.Hessberger, J.Khuyagbaatar, B.Kindler, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, G.Munzenberg, K.Nishio, A.G.Popeko, S.Saro, H.J.Schott, B.Streicher, B.Sulignano, J.Uusitalo, A.V.Yeremin

Studies of superheavy elements at SHIP

NUCLEAR REACTIONS 238U(48Ca, X), E=233.3-239.3 MeV; measured Eα from spontaneous fission.

doi: 10.1142/S021830130700640X
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2007HO18      Eur.Phys.J. A 32, 251 (2007)

S.Hofmann, D.Ackermann, S.Antalic, H.G.Burkhard, V.F.Comas, R.Dressler, Z.Gan, S.Heinz, J.A.Heredia, F.P.Hessberger, J.Khuyagbaatar, B.Kindler, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, G.Munzenberg, K.Nishio, A.G.Popeko, S.Saro, H.J.Schott, B.Streicher, B.Sulignano, J.Uusitalo, M.Venhart, A.V.Yeremin

The reaction 48Ca + 238U → 286112* studied at the GSI-SHIP

NUCLEAR REACTIONS 238U(48Ca, X), E=233.3-239.3 MeV; measured σ, Eα, (recoil)α-coin following residual nucleus decay; deduced evidence for 286Cn.

RADIOACTIVITY 283Cn(α), (SF) [from 238U(48Ca, X)]; measured Eα, (recoil)α-coin, T1/2.

doi: 10.1140/epja/i2007-10373-x
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2007HO24      J.Nucl.Radiochem.Sci. 8, 73 (2007)

S.Hofmann, H.Ikezoe, F.P.Hessberger, D.Ackermann, S.Antalic, V.F.Comas, Z.Gan, S.Heinz, J.A.Heredia, J.Khuyagbaatar, B.Kindler, I.Kojouharov, P.Kuusiniemi, B.Lommel, M.Mazzocco, S.Mitsuoka, Y.Nagame, T.Ohtsuki, A.G.Popeko, S.Saro, H.J.Schott, B.Sulignano, A.Svirikhin, K.Tsukada, K.Tsuruta, A.V.Yeremin

Measurement of Evaporation Residue and Fission Cross Sections of the Reaction 30Si + 238U at Subbarrier Energies

NUCLEAR REACTIONS 238U(30Si, X), E=140-183 MeV; measured fission fragment energy and mass distributions, fission cross sections. Compared results to model calculations.


2007LE14      Phys.Rev. C 75, 054307 (2007)

A.P.Leppanen, J.Uusitalo, M.Leino, S.Eeckhaudt, T.Grahn, P.T.Greenlees, P.Jones, R.Julin, S.Juutinen, H.Kettunen, P.Kuusiniemi, P.Nieminen, J.Pakarinen, P.Rahkila, C.Scholey, G.Sletten

α decay studies of the nuclides 218U and 219U

RADIOACTIVITY 218,219U(α) [from 182W(40Ar, X)]; measured Eα, T1/2. Deduced hindrance factors and reduced widths.

doi: 10.1103/PhysRevC.75.054307
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2007ST12      Acta Phys.Pol. B38, 1561 (2007)

B.Streicher, S.Antalic, S.Saro, M.Venhart, F.P.Hessberger, S.Hofmann, D.Ackermann, B.Kindler, I.Kojouharov, B.Lommel, R.Mann, B.Sulignano, P.Kuusiniemi

Alpha-Gamma Decay Studies of 261Sg

NUCLEAR REACTIONS 208Pb(54Cr, X)261sg, e=4.70-5.17 MeV/nucleon; measured Eγ, EX, Eα, αγ-coinc. 261Sg deduced levels, J, π.


2007SU19      Eur.Phys.J. A 33, 327 (2007)

B.Sulignano, S.Heinz, F.P.Hessberger, S.Hofmann, D.Ackermann, S.Antalic, B.Kindler, I.Kojouharov, P.Kuusiniemi, B.Lommel, R.Mann, K.Nishio, A.G.Popeko, S.Saro, B.Streicher, M.Venhart, A.V.Yeremin

Identification of a K isomer in 252No

NUCLEAR REACTIONS 206Pb(48Ca, 2n)252No, E(cm)=173.6-177 MeV; measured Eγ, Iγ, γγ-coinc. 252No deduced levels, J, π.

doi: 10.1140/epja/i2007-10469-3
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2006AN04      Phys.Rev. C 73, 024317 (2006)

A.N.Andreyev, S.Antalic, D.Ackermann, S.Franchoo, F.P.Hessberger, S.Hofmann, M.Huyse, I.Kojouharov, B.Kindler, P.Kuusiniemi, S.R.Lesher, B.Lommel, R.Mann, G.Munzenberg, K.Nishio, R.D.Page, J.J.Ressler, B.Streicher, S.Saro, B.Sulignano, P.Van Duppen, D.R.Wiseman

α-decay spectroscopy of the new isotope 192At

NUCLEAR REACTIONS 144Sm(51V, X), E=230 MeV; measured Eγ, Eα, (recoil)α-, αα-, αγ-coin following residual nucleus decay; deduced evidence for 192At.

RADIOACTIVITY 192,192mAt(α) [from 144Sm(51V, 3n)]; measured Eα, Eγ, αγ-coin, T1/2; deduced isomeric states energies, configurations.

doi: 10.1103/PhysRevC.73.024317
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2006AN11      Phys.Rev. C 73, 044324 (2006)

A.N.Andreyev, S.Antalic, D.Ackermann, S.Franchoo, F.P.Hessberger, S.Hofmann, M.Huyse, I.Kojouharov, B.Kindler, P.Kuusiniemi, S.R.Lesher, B.Lommel, R.Mann, G.Munzenberg, K.Nishio, R.D.Page, J.J.Ressler, B.Streicher, S.Saro, B.Sulignano, P.Van Duppen, D.Wiseman, R.Wyss

α-decay of the new isotope 187Po: Probing prolate structures beyond the neutron mid-shell at N = 104

NUCLEAR REACTIONS 144Sm(46Ti, 3n), (46Ti, 2np), E=224 MeV; measured Eγ, Eα, (recoil)α-coin following residual nucleus decay; deduced production σ. Recoil velocity filter.

RADIOACTIVITY 187Po, 187,187mBi, 183mTl(α) [from 144Sm(46Ti, xnyp) and subsequent decay]; measured Eγ, Eα, T1/2; deduced hindrance factors. 187Po, 183Pb, 187Bi, 183Tl deduced levels, J, π, configurations, deformation.

doi: 10.1103/PhysRevC.73.044324
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2006BA09      Phys.Rev. C 73, 024308 (2006)

J.E.Bastin, R.-D.Herzberg, P.A.Butler, G.D.Jones, R.D.Page, D.G.Jenkins, N.Amzal, P.M.T.Brew, N.J.Hammond, R.D.Humphreys, P.J.C.Ikin, T.Page, P.T.Greenlees, P.M.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, A.Keenan, H.Kettunen, P.Kuusiniemi, M.Leino, A.P.Leppanen, M.Muikku, P.Nieminen, P.Rahkila, C.Scholey, J.Uusitalo, E.Bouchez, A.Chatillon, A.Hurstel, W.Korten, Y.Le Coz, Ch.Theisen, D.Ackermann, J.Gerl, K.Helariutta, F.P.Hessberger, Ch.Schlegel, H.J.Wollersheim, M.Lach, A.Maj, W.Meczynski, J.Styczen, T.L.Khoo, C.J.Lister, A.V.Afanasjev, H.J.Maier, P.Reiter, P.Bednarczyk, K.Eskola, K.Hauschild

In-beam gamma ray and conversion electron study of 250Fm

NUCLEAR REACTIONS 204Hg(48Ca, 2n), E ≈ 205-216 MeV; measured Eγ, Iγ; deduced excitation function. 204Hg(48Ca, 2n), E=210 MeV; measured Eγ, Iγ, E(ce), I(ce), (recoil)γ-, (recoil)(ce)-, γγ-, (ce)γ-coin. 250Fm deduced levels, J, π, ICC, deformation. Jurosphere IV array, recoil-decay tagging..

RADIOACTIVITY 250Fm(α) [from 204Hg(48Ca, 2n)]; measured T1/2.

doi: 10.1103/PhysRevC.73.024308
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2006HE20      Eur.Phys.J. A 29, 165 (2006)

F.P.Hessberger, S.Hofmann, D.Ackermann, S.Antalic, B.Kindler, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, K.Nishio, A.G.Popeko, B.Sulignano, S.Saro, B.Streicher, M.Venhart, A.V.Yeremin

Alpha-gamma decay studies of 255No

RADIOACTIVITY 255No(α) [from 208Pb(48Ca, n), 209Bi(48Ca, 2n), 238U(22Ne, 5n)]; measured Eα, Eγ, αγ-coin, T1/2. 251Fm deduced levels, J, π. Level systematics in neighboring nuclides discussed.

doi: 10.1140/epja/i2006-10083-y
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2006HE27      Eur.Phys.J. A 30, 561 (2006)

F.P.Hessberger, S.Hofmann, D.Ackermann, S.Antalic, B.Kindler, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, K.Nishio, A.G.Popeko, B.Sulignano, S.Saro, B.Streicher, M.Venhart, A.V.Yeremin

Alpha-gamma decay studies of 255Rf, 251No and 247Fm

RADIOACTIVITY 255Rf, 251No, 247Fm(α) [from 207Pb(50Ti, 2n), 206Pb(48Ca, 3n), and subsequent decay]; measured Eγ, Eα, αγ-, γγ-coin. 243Cf, 247Fm, 251No deduced levels, J, π, ICC, isomeric states features. Velocity filter.

doi: 10.1140/epja/i2006-10137-2
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2006HO29      J.Nucl.Radiochem.Sci. 7, R25 (2006)

S.Hofmann, D.Ackermann, S.Antalic, H.G.Burkhard, R.Dressler, F.P.Hessberger, B.Kindler, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, G.Munzenberg, K.Nishio, A.G.Popeko, S.Saro, H.J.Schott, B.Streicher, B.Sulignano, J.Uusitalo, A.V.Yeremin

Study of Superheavy Elements at the GSI-SHIP

NUCLEAR REACTIONS 238U(48Ca, X)286Cn, E=34.5 MeV; measured reaction products; deduced σ, T1/2. Comparison with available data. SHIP separator.

doi: 10.14494/jnrs2000.7.R25
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2006KU26      Eur.Phys.J. A 30, 551 (2006)

P.Kuusiniemi, F.P.Hessberger, D.Ackermann, S.Antalic, S.Hofmann, K.Nishio, B.Sulignano, I.Kojouharov, R.Mann

Studies of 213g, mRa and 214g, mRa by α and γ decay

RADIOACTIVITY 213,213m,214,214mRa(α) [from 170Er(48Ca, xn), (50Ti, 3n) and subsequent decay]; measured Eγ, Eα, αγ-, γγ-coin, T1/2. 209,210Rn deduced levels, J, π, ICC. Velocity filter.

doi: 10.1140/epja/i2006-10148-y
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2006LE29      Eur.Phys.J. A 28, 301 (2006)

A.-P.Leppanen, J.Uusitalo, P.T.Greenlees, R.-D.Herzberg, N.Amzal, F.Becker, P.A.Butler, A.J.C.Chewter, J.F.C.Cocks, O.Dorvaux, S.Eeckhaudt, K.Eskola, J.Gerl, T.Grahn, N.J.Hammond, K.Hauschild, K.Helariutta, F.P.Hessberger, M.Houry, G.D.Jones, P.M.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, H.Kettunen, T.L.Khoo, W.Korten, P.Kuusiniemi, Y.Le Coz, M.Leino, C.J.Lister, R.Lucas, M.Muikku, P.Nieminen, M.Nyman, R.D.Page, J.Pakarinen, P.Rahkila, P.Reiter, J.Saren, Ch.Schlegel, C.Scholey, O.Stezowski, Ch.Theisen, W.H.Trzaska, H.J.Wollersheim

Recoil-fission tagging of the transfermium nucleus 252No

NUCLEAR REACTIONS 206Pb(48Ca, 2n), E=216 MeV; measured Eγ, Iγ, (recoil)γ-coin, (fission)γ-coin, Eα, Iα, (recoil)α-coin. 252No deduced fission and α branching ratios.Jurosphere II array, recoil-decay and recoil-fission tagging.

RADIOACTIVITY 252No(α), (SF) [from 206Pb(48Ca, 2n)]; measured T1/2.

doi: 10.1140/epja/i2006-10056-2
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2006NI10      Eur.Phys.J. A 29, 281 (2006)

K.Nishio, S.Hofmann, F.P.Hessberger, D.Ackermann, S.Antalic, V.F.Comas, Z.Gan, S.Heinz, J.A.Heredia, H.Ikezoe, J.Khuyagbaatar, B.Kindler, I.Kojouharov, P.Kuusiniemi, B.Lommel, R.Mann, M.Mazzocco, S.Mitsuoka, Y.Nagame, T.Ohtsuki, A.G.Popeko, S.Saro, H.J.Schott, B.Sulignano, A.Svirikhin, K.Tsukada, K.Tsuruta, A.V.Yeremin

Measurement of evaporation residue cross-sections of the reaction 30Si + 238U at subbarrier energies

NUCLEAR REACTIONS 238U(30Si, F), (30Si, 3n), (30Si, 4n), (30Si, 5n), E=145.5, 151.2, 163.5 MeV; measured fission and evaporation residue σ.

RADIOACTIVITY 263,265Sg, 259Rf, 255No(α) [from 238U(30Si, xn) and subsequent decay]; measured Eα, T1/2. 262,264Sg, 261Rf(SF) [from 238U(30Si, xn) and subsequent decay]; measured T1/2, fission fragments kinetic energy.

doi: 10.1140/epja/i2006-10091-y
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2005AN17      Phys.Rev. C 72, 014612 (2005)

A.N.Andreyev, D.Ackermann, S.Antalic, I.G.Darby, S.Franchoo, F.P.Hessberger, S.Hofmann, M.Huyse, P.Kuusiniemi, B.Lommel, B.Kindler, R.Mann, G.Munzenberg, R.D.Page, S.Saro, B.Sulignano, B.Streicher, K.Van de Vel, P.Van Duppen, D.R.Wiseman

Cross section systematics for the lightest Bi and Po nuclei produced in complete fusion reactions with heavy ions

NUCLEAR REACTIONS 142Nd(52Cr, 3n), (52Cr, 4n), (52Cr, 5n), (52Cr, 6n), (52Cr, np), (52Cr, 2np), (52Cr, 3np), (52Cr, 4np), (52Cr, 5np), (52Cr, 6np), E=220-310 MeV; 142Nd(50Cr, 3n), (50Cr, 4n), (50Cr, 2np), (50Cr, 3np), (50Cr, 4np), (50Cr, 5np), E=230-285 MeV; 92Mo(98Mo, 2np), (98Mo, 3np), E=427-460 MeV; 93Nb(95Mo, n), (95Mo, 2n), (95Mo, 3n), (95Mo, p), (95Mo, np), (95Mo, 2np), (95Mo, 3np), (95Mo, 4np), E=375-456 MeV; 93Nb(94Mo, 2n), (94Mo, 3n), (94Mo, np), (94Mo, 2np), (94Mo, 3np), E=405-450 MeV; 144Sm(46Ti, 3n), (46Ti, 4n), E=202-242 MeV; measured σ. Velocity filter, comparison with statistical model predictions.

doi: 10.1103/PhysRevC.72.014612
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2005EE01      Eur.Phys.J. A 25, Supplement 1, 605 (2005)

S.Eeckhaudt, N.Amzal, J.E.Bastin, E.Bouchez, P.A.Butler, A.Chatillon, K.Eskola, J.Gerl, T.Grahn, A.Gorgen, P.T.Greenlees, R.-D.Herzberg, F.P.Hessberger, A.Hurstel, P.J.C.Ikin, G.D.Jones, P.Jones, R.Julin, S.Juutinen, H.Kettunen, T.L.Khoo, W.Korten, P.Kuusiniemi, Y.Le Coz, M.Leino, A.-P.Leppanen, P.Nieminen, J.Pakarinen, J.Perkowski, A.Pritchard, P.Reiter, P.Rahkila, C.Scholey, Ch.Theisen, J.Uusitalo, K.Van de Vel, J.Wilson, H.J.Wollersheim

In-beam gamma-ray spectroscopy of 254No

NUCLEAR REACTIONS 208Pb(48Ca, 2n), E not given; measured Eγ, Iγ, (recoil)γ-coin. 254No deduced rotational band levels, J, π. Jurogam array, recoil-decay tagging.

doi: 10.1140/epjad/i2005-06-015-3
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2005EE02      Eur.Phys.J. A 26, 227 (2005)

S.Eeckhaudt, P.T.Greenlees, N.Amzal, J.E.Bastin, E.Bouchez, P.A.Butler, A.Chatillon, K.Eskola, J.Gerl, T.Grahn, A.Gorgen, R.-D.Herzberg, F.P.Hessberger, A.Hurstel, P.J.C.Ikin, G.D.Jones, P.Jones, R.Julin, S.Juutinen, H.Kettunen, T.L.Khoo, W.Korten, P.Kuusiniemi, Y.Le Coz, M.Leino, A.-P.Leppanen, P.Nieminen, J.Pakarinen, J.Perkowski, A.Pritchard, P.Reiter, P.Rahkila, C.Scholey, Ch.Theisen, J.Uusitalo, K.Van de Vel, J.Wilson

Evidence for non-yrast states in 254No

NUCLEAR REACTIONS 208Pb(48Ca, 2n), E=219, 221 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 254No deduced levels, J, π, rotational band, non-yrast state. Jurogam array, recoil-decay tagging.

doi: 10.1140/epja/i2005-10163-6
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2005GR36      Eur.Phys.J. A 25, Supplement 1, 599 (2005)

P.T.Greenlees, N.Amzal, J.E.Bastin, E.Bouchez, P.A.Butler, A.Chatillon, O.Dorvaux, S.Eeckhaudt, K.Eskola, B.Gall, J.Gerl, T.Grahn, A.Gorgen, N.J.Hammond, K.Hauschild, R.-D.Herzberg, F.-P.Hessberger, R.D.Humphreys, A.Hurstel, D.G.Jenkins, G.D.Jones, P.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, A.Keenan, H.Kettunen, F.Khalfallah, T.L.Khoo, W.Korten, P.Kuusiniemi, Y.Le Coz, M.Leino, A.-P.Leppanen, M.Muikku, P.Nieminen, J.Pakarinen, P.Rahkila, P.Reiter, M.Rousseau, C.Scholey, Ch.Theisen, J.Uusitalo, J.Wilson, H.-J.Wollersheim

In-beam and decay spectroscopy of transfermium elements

RADIOACTIVITY 255Lr, 251Md(α) [from 209Bi(48Ca, 2n) and subsequent decay]; measured Eα, αα-coin; deduced excited state decay.

NUCLEAR REACTIONS 205Tl(48Ca, 2n), E=218 MeV; measured Eγ, Iγ, (recoil)γ-coin. Jurogam array.

NUCLEAR STRUCTURE 248,250Fm, 251Md, 252,254No; analyzed rotational bands moments of inertia.

doi: 10.1140/epjad/i2005-06-026-0
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2005HE27      Eur.Phys.J. A 26, 233 (2005)

F.P.Hessberger, S.Antalic, B.Streicher, S.Hofmann, D.Ackermann, B.Kindler, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, K.Nishio, S.Saro, B.Sulignano

Energy systematics of low-lying Nilsson levels in odd-mass einsteinium isotopes

RADIOACTIVITY 247,249,251,253,255Md(α) [from 209Bi(40Ar, xn), (50Ti, xn), 207,207Pb, 209Bi(48Ca, xn) and subsequent decay]; measured Eα, Eγ, αγ-coin; deduced branching ratios, hindrance factors. 243,245,247,249,251Es deduced levels, J, π, configurations, deformation. Comparison with model predictions.

doi: 10.1140/epja/i2005-10171-6
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2005JO17      J.Phys.(London) G31, S1593 (2005)

D.T.Joss, N.Amzal, D.E.Appelbe, T.Back, C.J.Barton, M.A.Bentley, B.Cederwall, J.F.C.Cocks, D.M.Cullen, S.Eeckhaudt, T.Grahn, P.T.Greenlees, B.Hadinia, K.Helariutta, P.M.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, A.Keenan, H.Kettunen, S.L.King, P.Kuusiniemi, K.Lagergren, M.Leino, A.P.Leppanen, M.Muikku, P.Nieminen, R.D.Page, J.Pakarinen, E.S.Paul, P.Rahkila, C.Scholey, A.Savelius, J.Simpson, M.J.Taylor, J.Uusitalo, S.J.Williams, D.D.Warner, D.R.Wiseman, R.Wyss

Probing structural changes in the very neutron-deficient Os isotopes with recoil-decay tagging

NUCLEAR STRUCTURE 162,164,166,168,169,170Os; analyzed level energies; deduced shape transition features.

doi: 10.1088/0954-3899/31/10/039
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2005KE10      Eur.Phys.J. A 25, Supplement 1, 181 (2005)

H.Kettunen, T.Enqvist, K.Eskola, T.Grahn, P.T.Greenlees, K.Helariutta, P.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, A.Keenan, H.Koivisto, P.Kuusiniemi, M.Leino, A.-P.Leppanen, M.Muikku, P.Nieminen, J.Pakarinen, P.Rahkila, J.Uusitalo

Decay studies of neutron-deficient odd-mass At and Bi isotopes

NUCLEAR REACTIONS 142Nd(56Fe, 2np), E=262 MeV; 141Pr(56Fe, 4n), E=266 MeV; 141Pr(54Fe, 4n), E=260 MeV; measured production σ.

RADIOACTIVITY 191,193,195At(α); measured Eα, Eγ, γα-coin. 191,193,195At deduced levels, J, π, configurations, proton separation energies. 187,189,191Bi deduced levels J, π, configurations. Comparison with theory.

doi: 10.1140/epjad/i2005-06-114-1
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2005KU06      Eur.Phys.J. A 23, 417 (2005)

P.Kuusiniemi, F.P.Hessberger, D.Ackermann, S.Hofmann, I.Kojouharov

Decay studies of 210-214Fr using α-γ-coincidences

RADIOACTIVITY 210,211,212,213,214Fr(α) [from 209Bi(12C, xn) and subsequent decay]; measured Eα, Iα, Eγ, Iγ, αγ-coin, T1/2; deduced hindrance factors. 206,207,208,209,210At deduced levels, J, π. Comparison with previous results.

doi: 10.1140/epja/i2004-10104-y
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2005KU31      Eur.Phys.J. A 25, 397 (2005)

P.Kuusiniemi, F.P.Hessberger, D.Ackermann, S.Hofmann, B.Sulignano, I.Kojouharov, R.Mann

Decay studies of 215-217Th using ER-γ-α-γ coincidences

RADIOACTIVITY 215,216,216m,217Th(α) [from 170Er(50Ti, xn)]; measured Eα, Iα, Eγ, Iγ, αγ-coin, T1/2. 211,212,213Ra deduced levels, J, π, ICC.

doi: 10.1140/epja/i2005-10117-0
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2005LE42      Eur.Phys.J. A 25, Supplement 1, 183 (2005)

A.-P.Leppanen, J.Uusitalo, S.Eeckhaudt, T.Enqvist, K.Eskola, T.Grahn, F.P.Hessberger, P.T.Greenlees, P.Jones, R.Julin, S.Juutinen, H.Kettunen, P.Kuusiniemi, M.Leino, P.Nieminen, J.Pakarinen, J.Perkowski, P.Rahkila, C.Scholey, G.Sletten

Alpha-decay study of 218U; a search for the sub-shell closure at Z = 92

NUCLEAR REACTIONS 182W(40Ar, xn)217U/218U/218mU/219U, E=186 MeV; measured Eα, αα-, (recoil)α-coin; deduced production σ.

RADIOACTIVITY 217,218,218m,219U(α); measured Eα, T1/2. 217,218,219U deduced ground state J, π. 218U deduced isomer J, π. Implications for Z=92 shell closure discussed.

doi: 10.1140/epjad/i2005-06-116-y
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2005NA28      Phys.Rev. C 72, 027303 (2005)

B.S.Nara Singh, M.Hass, G.Goldring, D.Ackermann, J.Gerl, F.P.Hessberger, S.Hofmann, I.Kojouharov, P.Kuusiniemi, H.Schaffner, B.Sulignano, B.A.Brown

Parity nonconservation in the γ decay of polarized 17/2- isomers in 93Tc

RADIOACTIVITY 93mTc(IT) [from 45Sc(52Cr, 2n2p)]; measured Eγ, Iγ, γ asymmetry from polarized nucleus decay. 93Tc deduced parity nonconservation in isomeric state decay.

doi: 10.1103/PhysRevC.72.027303
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2005NA43      Eur.Phys.J. A 25, Supplement 1, 703 (2005)

B.S.Nara Singh, M.Hass, G.Goldring, D.Ackermann, J.Gerl, F.P.Hessberger, S.Hofmann, I.Kojouharov, P.Kuusiniemi, H.Schaffner, B.Sulignano, B.A.Brown

Parity non-conservation in the γ-decay of polarized 17/2- isomers in 93Tc

RADIOACTIVITY 93mTc(IT) [from 45Sc(52Cr, 2n2p)]; measured γ-ray anisotropies from oriented source; deduced parity-nonconserving matrix element.

doi: 10.1140/epjad/i2005-06-073-5
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2005RE14      Phys.Rev.Lett. 95, 032501 (2005)

P.Reiter, T.L.Khoo, I.Ahmad, A.V.Afanasjev, A.Heinz, T.Lauritsen, C.J.Lister, D.Seweryniak, P.Bhattacharyya, P.A.Butler, M.P.Carpenter, A.J.Chewter, J.A.Cizewski, C.N.Davids, J.P.Greene, P.T.Greenlees, K.Helariutta, R.-D.Herzberg, R.V.F.Janssens, G.D.Jones, R.Julin, H.Kankaanpaa, H.Kettunen, F.G.Kondev, P.Kuusiniemi, M.Leino, S.Siem, A.A.Sonzogni, J.Uusitalo, I.Wiedenhover

Structure of the Odd-A, Shell-Stabilized Nucleus 253102No

NUCLEAR REACTIONS 207Pb(48Ca, 2n), E=219 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 253No deduced high-spin levels, J, π, configurations. Gammasphere array, fragment separator.

doi: 10.1103/PhysRevLett.95.032501
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2005UU02      Phys.Rev. C 71, 024306 (2005)

J.Uusitalo, M.Leino, T.Enqvist, K.Eskola, T.Grahn, P.T.Greenlees, P.Jones, R.Julin, S.Juutinen, A.Keenan, H.Kettunen, H.Koivisto, P.Kuusiniemi, A.-P.Leppanen, P.Nieminen, J.Pakarinen, P.Rahkila, C.Scholey

α decay studies of very neutron-deficient francium and radium isotopes

NUCLEAR REACTIONS 141Pr(65Cu, xnypzα), E=283-293 MeV; measured delayed Eα, Iα, αα-, (recoil)α-coin; deduced evidence for 199,200,201Rn, 202,203,204Fr, 203,204Ra. 141Pr(63Cu, xnypzα), E=278-288 MeV; measured delayed Eα, Iα, αα-, (recoil)α-coin; deduced evidence for 198,199,200,201,202Rn, 201,202Fr, 201,202Ra. 170Yb(36Ar, xnypzα), E=180-185 MeV; measured delayed Eα, Iα, αα-, (recoil)α-coin; deduced evidence for 201Fr, 203Ra. Gas-filled recoil separator.

RADIOACTIVITY 201,202,203,204Ra, 197,198,199,200Rn, 193,194,195,196Po, 201,202,203,204Fr, 197,198,199,200At(α) [from 141Pr(63,65Cu, xnypzα), 170Yb(36Ar, xnypzα), and subsequent decay]; measured Eα, T1/2, αα-coin for ground and metastable state decay. 193,195Bi, 197,199At, 201,203Fr deduced levels, J, π. Comparisons with previous results.

doi: 10.1103/PhysRevC.71.024306
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2005UU03      Eur.Phys.J. A 25, Supplement 1, 179 (2005)

J.Uusitalo, S.Eeckhaudt, T.Enqvist, K.Eskola, T.Grahn, P.T.Greenlees, P.Jones, R.Julin, S.Juutinen, H.Kettunen, P.Kuusiniemi, M.Leino, A.-P.Leppanen, P.Nieminen, M.Nyman, J.Pakarinen, P.Rahkila, C.Scholey

Alpha-decay studies using the JYFL gas-filled recoil separator RITU

RADIOACTIVITY 188,190,192,194,196,198,200,202,204Po, 191,193,195,197,199At, 196,198,200,202,204,206Rn, 199,201,203,205,207Fr(α); measured reduced widths using gas filled recoil separator; deduced hindrance factors, proton intruder states and deformation effects.

doi: 10.1140/epjad/i2005-06-089-9
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2004GR10      Eur.Phys.J. A 20, 87 (2004)

P.T.Greenlees, A.N.Andreyev, J.Bastin, F.Becker, E.Bouchez, P.A.Butler, J.F.C.Cocks, Y.Le Coz, K.Eskola, J.Gerl, K.Hauschild, K.Helariutta, R.-D.Herzberg, F.P.Hessberger, R.D.Humphreys, A.Hurstel, D.G.Jenkins, G.D.Jones, P.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, A.Keenan, H.Kettunen, T.L.Khoo, W.Korten, P.Kuusiniemi, M.Leino, A.-P.Leppanen, M.Muikku, P.Nieminen, R.D.Page, T.Page, J.Pakarinen, P.Rahkila, P.Reiter, Ch.Schlegel, C.Scholey, Ch.Theisen, J.Uusitalo, K.Van de Vel, R.Wadsworth, H.-J.Wollersheim

In-beam spectroscopy at the RITU gas-filled recoil separator

doi: 10.1140/epja/i2002-10327-x
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2004HE28      Eur.Phys.J. A 22, 417 (2004)

F.P.Hessberger, S.Hofmann, D.Ackermann, P.Cagarda, R.-D.Herzberg, I.Kojouharov, P.Kuusiniemi, M.Leino, R.Mann

Alpha-gamma decay studies of 251, 253No and their daughter products 247, 249Fm

RADIOACTIVITY 251,251m,253No, 247,247m,249Fm, 245Cf(α) [from 206Pb(48Ca, 3n), 207Pb(48Ca, 2n) and subsequent decay]; measured Eα, Eγ, αα-, αγ-coin, T1/2. 243,245Cf, 247,249Fm, 251No deduced levels, J, π. Level systematics in neighboring nuclides discussed.

doi: 10.1140/epja/i2003-10238-4
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2004HO09      Nucl.Phys. A734, 93 (2004)

S.Hofmann, F.P.Hessberger, D.Ackermann, S.Antalic, P.Cagarda, B.Kindler, P.Kuusiniemi, M.Leino, B.Lommel, O.N.Malyshev, R.Mann, G.Munzenberg, A.G.Popeko, S.Saro, B.Streicher, A.V.Yeremin

Properties of heavy nuclei measured at the GSI SHIP

doi: 10.1016/j.nuclphysa.2004.01.018
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2004HU11      Phys.Rev. C 69, 064324 (2004)

R.D.Humphreys, P.A.Butler, J.E.Bastin, P.T.Greenlees, N.J.Hammond, R.-D.Herzberg, D.G.Jenkins, G.D.Jones, H.Kankaanpaa, A.Keenan, H.Kettunen, T.Page, P.Rahkila, C.Scholey, J.Uusitalo, N.Amzal, P.M.T.Brew, K.Eskola, J.Gerl, K.Hauschild, K.Helariutta, F.-P.Hessberger, A.Hurstel, P.M.Jones, R.Julin, S.Juutinen, T.-L.Khoo, W.Korten, P.Kuusiniemi, Y.Le Coz, M.Leino, A.-P.Leppanen, M.Muikku, P.Nieminen, S.W.Odegard, J.Pakarinen, P.Reiter, G.Sletten, Ch.Theisen, H.-J.Wollersheim

In-beam electron spectroscopy of 226U and 254No

NUCLEAR REACTIONS 208Pb(22Ne, 4n), E=112 MeV; 208Pb(48Ca, 2n), E=219 MeV; measured E(ce), I(ce), (ce)(ce)-, (recoil)(ce)-coin. 226U, 254No deduced levels, J, π. SACRED spectrometer, mass separator, recoil-decay tagging.

doi: 10.1103/PhysRevC.69.064324
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2004HU15      Eur.Phys.J. A 21, 365 (2004)

A.Hurstel, Y.Le Coz, E.Bouchez, A.Chatillon, A.Gorgen, P.T.Greenlees, K.Hauschild, S.Juutinen, H.Kettunen, W.Korten, P.Nieminen, M.Rejmund, Ch.Theisen, J.Wilson, A.N.Andreyev, F.Becker, T.Enqvist, P.M.Jones, R.Julin, H.Kankaanpaa, A.Keenan, P.Kuusiniemi, M.Leino, A.-P.Leppanen, M.Muikku, J.Pakarinen, P.Rahkila, J.Uusitalo

Prolate deformation in the 187, 189Bi isotopes

NUCLEAR REACTIONS 109Ag(82Kr, 2n), E=337 MeV; 107,109Ag(83Kr, 3n), E=340 MeV; measured prompt and delayed Eγ, Iγ, γγ-, (recoil)γ-coin. 187,189Bi deduced levels, J, π, rotational bands, isomeric states T1/2. Recoil-decay tagging method.

doi: 10.1140/epja/i2004-10066-0
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2004KE06      Phys.Rev. C 69, 054323 (2004)

H.Kettunen, T.Enqvist, T.Grahn, P.T.Greenlees, P.Jones, R.Julin, S.Juutinen, A.Keenan, P.Kuusiniemi, M.Leino, A.-P.Leppanen, P.Nieminen, J.Pakarinen, P.Rahkila, J.Uusitalo

Decay studies of 170, 171Au, 171-173Hg, and 176Tl

RADIOACTIVITY 170,171Au, 176,177Tl(p); measured Ep, T1/2; deduced proton emission probabilities, spectroscopic factors. 171,172,173Hg, 170,171Au, 177Tl, 167,168,169,170Pt, 166,167Ir(α); measured Eα, T1/2; deduced hindrance factors.

NUCLEAR REACTIONS 96Ru(78Kr, xnyp), E=361-391 MeV; 102Pd(78Kr, xnyp), E=380-405 MeV; measured residual nucleus decay spectra, production σ; deduced evidence for 171Hg. Gas-filled recoil separator.

doi: 10.1103/PhysRevC.69.054323
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2004KU24      Eur.Phys.J. A 22, 429 (2004)

P.Kuusiniemi, F.P.Hessberger, D.Ackermann, S.Hofmann, I.Kojouharov

Decay studies of 214-216Ac by α-γ-γ-coincidences

RADIOACTIVITY 214,215,216Ac(α) [from 209Bi(12C, xn)]; measured Eα, Eγ, αγ-, γγ-coin; deduced hindrance factors. 210,211,212Fr deduced levels, J, π, ICC. Level systematics in neighboring nuclides discussed.

doi: 10.1140/epja/i2004-10101-2
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2004NI06      Phys.Rev. C 69, 064326 (2004)

P.Nieminen, S.Juutinen, A.N.Andreyev, J.F.C.Cocks, O.Dorvaux, K.Eskola, P.T.Greenlees, K.Hauschild, K.Helariutta, M.Huyse, P.M.Jones, R.Julin, H.Kankaanpaa, H.Kettunen, P.Kuusiniemi, Y.Le Coz, M.Leino, T.Lonnroth, M.Muikku, P.Rahkila, A.Savelius, J.Uusitalo, N.Amzal, N.J.Hammond, C.Scholey, R.Wyss

γ-ray spectroscopy of 191, 193Bi

NUCLEAR REACTIONS 165Ho(32S, 4n), E=142-157 MeV; 142Nd(52Cr, 2np), E=235 MeV; measured prompt and delayed Eγ, Iγ, γγ-, (recoil)γ-coin. 191,193Bi deduced levels, J, π, B(M1)/B(E2), isomeric states features. Jurosphere array, recoil-decay tagging.

doi: 10.1103/PhysRevC.69.064326
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2003BA32      Eur.Phys.J. A 17, 1 (2003)

T.Back, B.Cederwall, K.Lagergren, R.Wyss, A.Johnson, P.Greenlees, D.Jenkins, P.Jones, D.T.Joss, R.Julin, S.Juutinen, A.Keenan, H.Kettunen, P.Kuusiniemi, M.Leino, A.-P.Leppanen, M.Muikku, P.Nieminen, J.Pakarinen, P.Rahkila, J.Uusitalo

Spectroscopy of the neutron-deficient nuclide 171Pt

NUCLEAR REACTIONS 96Ru(78Kr, n2p), E=363 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 171Pt deduced levels, possible J, π. Jurosphere array, recoil-decay tagging.

doi: 10.1140/epja/i2002-10126-5
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2003BB21      Eur.Phys.J. A 16, 489 (2003)

T.Back, B.Cederwall, K.Lagergren, R.Wyss, A.Johnson, D.Karlgren, P.Greenlees, D.Jenkins, P.Jones, D.T.Joss, R.Julin, S.Juutinen, A.Keenan, H.Kettunen, P.Kuusiniemi, M.Leino, A.-P.Leppanen, M.Muikku, P.Nieminen, J.Pakarinen, P.Rahkila, J.Uusitalo

First observation of gamma-rays from the proton emitter 171Au

NUCLEAR REACTIONS 96Ru(78Kr, X)171Au, E=363 MeV; measured reaction products, Eγ, Iγ, Eα, Iα, Ep, Ip, γ-α- and γ-p-coin.; deduced γ-ray energies, level scheme on the top of 11/2- isomeric state.

RADIOACTIVITY 171Au(p), (α); measured decay products, Eγ, Iγ, Eα, Iα, Ep, Ip, γ-α- and γ-p-coin.; deduced 11/2- and 1/2+ states T1/2.

doi: 10.1140/epja/i2002-10108-7
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2003BU23      Acta Phys.Pol. B34, 2107 (2003)

P.A.Butler, R.D.Humphreys, P.T.Greenlees, R.-D.Herzberg, D.G.Jenkins, G.D.Jones, H.Kankaanpaa, H.Kettunen, P.Rahkila, C.Scholey, J.Uusitalo, N.Amzal, C.Andreoiu, A.Andreyev, D.Appelbe, J.E.Bastin, P.M.T.Brew, K.Eskola, S.J.Freeman, J.Gerl, N.J.Hammond, K.Hauschild, K.Helariutta, F.-P.Hessberger, A.Hurstel, P.J.C.Ikin, P.M.Jones, D.T.Joss, R.Julin, S.Juutinen, A.Keenan, T.-L.Khoo, W.Korten, P.Kuusiniemi, Y.Le Coz, M.Leino, A.-P.Leppanen, M.Muikku, P.Nieminen, S.W.Odegard, R.D.Page, T.Page, J.Pakarinen, P.Reiter, J.Simpson, G.Sletten, Ch.Theisen, B.J.Varley, H.-J.Wollersheim

High K bands in mid-supershell nuclei

NUCLEAR REACTIONS 208Pb(22Ne, 4n), E=111 MeV; 208Pb(48Ca, 2n), E=216 MeV; measured prompt and delayed E(ce), I(ce), (recoil)(electron)-coin. 254No deduced transitions, high-spin isomeric states. Mass separator, recoil-decay tagging.


2003JO06      Phys.Rev. C 68, 014303 (2003)

D.T.Joss, J.Simpson, E.S.Paul, R.D.Page, N.Amzal, D.E.Appelbe, T.Back, B.Cederwall, J.F.C.Cocks, D.M.Cullen, P.T.Greenlees, K.Helariutta, P.M.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, A.Keenan, H.Kettunen, S.L.King, P.Kuusiniemi, M.Leino, M.Muikku, A.Savelius, J.Uusitalo

Strongly coupled bands in the neutron-deficient nucleus 167Re

NUCLEAR REACTIONS 112Sn(58Ni, 3p), E=265 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 167Re deduced high-spin levels, J, π, B(M1)/B(E2), configurations. Recoil-decay tagging.

doi: 10.1103/PhysRevC.68.014303
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2003KE04      Eur.Phys.J. A 16, 457 (2003)

H.Kettunen, T.Enqvist, M.Leino, K.Eskola, P.T.Greenlees, K.Helariutta, P.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, H.Koivisto, P.Kuusiniemi, M.Muikku, P.Nieminen, P.Rahkila, J.Uusitalo

Investigations into the alpha-decay of 195At

RADIOACTIVITY 195,195mAt, 191,191mBi(α) [from 142Nd(56Fe, 2np) and subsequent decay]; measured Eα, Iα, Eγ, Iγ, αγ-coin, T1/2; deduced hindrance factors. 195At, 191Bi, 187Tl deduced levels, J, π, configurations. Mass separator.

NUCLEAR REACTIONS 142Nd(56Fe, 2np), E=262 MeV; measured production σ, isomer production ratio. Mass separator.

doi: 10.1140/epja/i2002-10130-9
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2003KE08      Eur.Phys.J. A 17, 537 (2003)

H.Kettunen, T.Enqvist, T.Grahn, P.T.Greenlees, P.Jones, R.Julin, S.Juutinen, A.Keenan, P.Kuusiniemi, M.Leino, A.-P.Leppanen, P.Nieminen, J.Pakarinen, P.Rahkila, J.Uusitalo

Alpha-decay studies of the new isotopes 191At and 193At

NUCLEAR REACTIONS 141Pr(54Fe, 4n), (56Fe, 4n), E ≈ 248-272 MeV; measured excitation functions. Recoil-decay tagging.

RADIOACTIVITY 191,193At, 187,189Bi(α) [from 141Pr(54Fe, 4n), (56Fe, 4n) and subsequent decay]; measured Eα, T1/2 for ground and excited states; deduced hindrance factors. 191,193At, 187,189Bi deduced levels, J, π, configurations.

doi: 10.1140/epja/i2002-10162-1
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2003ME20      Phys.Rev. C 68, 041301 (2003)

A.Melerangi, D.Appelbe, R.D.Page, H.J.Boardman, P.T.Greenlees, P.Jones, D.T.Joss, R.Julin, S.Juutinen, H.Kettunen, P.Kuusiniemi, M.Leino, M.H.Muikku, P.Nieminen, J.Pakarinen, P.Rahkila, J.Simpson

Shape isomerism and spectroscopy of 177Hg

NUCLEAR REACTIONS 144Sm(36Ar, 3n), E=178 MeV; measured prompt and delayed Eγ, Iγ, (recoil)γ-, γγ-coin. 177Hg deduced high-spin levels, possible J, π, isomeric state T1/2. Jurosphere array, recoil-decay tagging, comparisons with neighboring isotopes.

doi: 10.1103/PhysRevC.68.041301
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2003VA05      Eur.Phys.J. A 17, 167 (2003)

K.Van de Vel, A.N.Andreyev, R.D.Page, H.Kettunen, P.T.Greenlees, P.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, A.Keenan, P.Kuusiniemi, M.Leino, M.Muikku, P.Nieminen, P.Rahkila, J.Uusitalo, K.Eskola, A.Hurstel, M.Huyse, Y.Le Coz, M.B.Smith, P.Van Duppen, R.Wyss

In-beam γ-ray spectroscopy of 190Po: First observation of a low-lying prolate band in Po isotopes

NUCLEAR REACTIONS 142Nd(52Cr, 4n), E=255 MeV; measured Eγ, Iγ, (recoil)γ-coin. 190Po deduced levels, J, π, configurations, deformation. Jurosphere array, recoil-decay tagging. Level systematics in neighboring nuclides discussed.

RADIOACTIVITY 187,188Pb, 188,190,191,193Bi, 190,191,192Po(α) [from 142Nd(52Cr, xnyp)]; measured Eα. Mass separator.

doi: 10.1140/epja/i2003-10002-x
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2002AN19      Phys.Rev. C66, 014313 (2002)

A.N.Andreyev, M.Huyse, K.Van de Vel, P.Van Duppen, O.Dorvaux, P.Greenlees, K.Helariutta, P.Jones, R.Julin, S.Juutinen, H.Kettunen, P.Kuusiniemi, M.Leino, M.Muikku, P.Nieminen, P.Rahkila, J.Uusitalo, R.Wyss, K.Hauschild, Y.Le Coz

In-Beam and α-Decay Spectroscopy of 191Po and Evidence for Triple Shape Coexistence at Low Energy in the Daughter Nucleus 187Pb

NUCLEAR REACTIONS 142Nd(52Cr, 3n), E=236 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 191Po deduced levels, possible J, π, deformation. Recoil decay tagging, Jurosphere array. Potential energy surface calculations.

RADIOACTIVITY 191,191mPo(α) [from 142Nd(52Cr, 3n)]; measured Eα, Eγ, αγ-coin. 187Pb deduced levels, J, π, high-spin isomer, shape coexistence.

doi: 10.1103/PhysRevC.66.014313
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2002AP03      Phys.Rev. C66, 014309 (2002)

D.E.Appelbe, J.Simpson, M.Muikku, H.J.Boardman, A.Melarangi, R.D.Page, P.T.Greenlees, P.M.Jones, R.Julin, S.Juutinen, A.Keenan, H.Kettunen, P.Kuusiniemi, M.Leino, P.Nieminen, J.Pakarinen, P.Rahkila, J.Uusitalo, D.T.Joss

First Observation of Excited States in the Very Neutron Deficient Nucleus 76165Os and the Yrast Structure of 76166Os

NUCLEAR REACTIONS 106Cd(64Zn, 2n2p), (64Zn, 3n2p), E=334 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 166Os deduced levels, J, π. 165Os deduced transitions. Jurosphere array, recoil decay tagging. Level systematics in neighboring nuclides discussed.

doi: 10.1103/PhysRevC.66.014309
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2002BU28      Phys.Rev.Lett. 89, 202501 (2002)

P.A.Butler, R.D.Humphreys, P.T.Greenlees, R.-D.Herzberg, D.G.Jenkins, G.D.Jones, H.Kankaanpaa, H.Kettunen, P.Rahkila, C.Scholey, J.Uusitalo, N.Amzal, J.E.Bastin, P.M.T.Brew, K.Eskola, J.Gerl, N.J.Hammond, K.Hauschild, K.Helariutta, F.-P.Hessberger, A.Hurstel, P.M.Jones, R.Julin, S.Juutinen, A.Keenan, T.-L.Khoo, W.Korten, P.Kuusiniemi, Y.Le Coz, M.Leino, A.-P.Leppanen, M.Muikku, P.Nieminen, S.W.Odegard, T.Page, J.Pakarinen, P.Reiter, G.Sletten, Ch.Theisen, H.-J.Wollersheim

Conversion Electron Cascades in 254102No

NUCLEAR REACTIONS 208Pb(22Ne, 4n), E=111 MeV; 208Pb(48Ca, 2n), E=219 MeV; measured E(ce), I(ce), (recoil)(ce)-coin. 254No deduced magnetic dipole transitions.

doi: 10.1103/PhysRevLett.89.202501
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2002CU05      Phys.Rev. C66, 034308 (2002)

D.M.Cullen, L.K.Pattison, R.S.Chakrawarthy, D.Dobson, J.L.Durell, S.J.Freeman, D.T.Scholes, C.Scholey, E.S.Paul, P.T.W.Choy, P.T.Greenlees, P.M.Jones, R.Julin, S.Juutinen, A.Keenan, H.Kettunen, P.Kuusiniemi, M.Leino, A.-P.Leppanen, P.Nieminen, J.Pakarinen, P.Rahkila, J.Uusitalo, M.A.Bentley, D.T.Joss

Identification of Excited States in Doubly Odd 63140Eu77 by Recoil-Isomer Tagging

NUCLEAR REACTIONS 107Ag(36Ar, n2p), E=152, 181 MeV; measured prompt and delayed Eγ, Iγ, γγ-, (recoil)γ-coin; deduced production σ. 140Eu deduced high-spin levels, possible J, π, configurations, isomer T1/2. Jurosphere II array, recoil-isomer tagging.

doi: 10.1103/PhysRevC.66.034308
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2002DO19      Phys.Rev. C 66, 064321 (2002)

D.J.Dobson, S.J.Freeman, P.T.Greenlees, A.N.Qadir, S.Juutinen, J.L.Durell, T.Enqvist, P.Jones, R.Julin, A.Keenan, H.Kettunen, P.Kuusiniemi, M.Leino, P.Nieminen, P.Rahkila, S.D.Robinson, J.Uusitalo, B.J.Varley

Low-lying structure of light radon isotopes

NUCLEAR REACTIONS 168Er(36Ar, 4n), E=175 MeV; 166Er(40Ar, 4n), E=182 MeV; 168Er(40Ar, 4n), E=177 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 200,202,204Rn deduced levels, J, π, configurations. Jurosphere array, mass separator, recoil-decay tagging.

doi: 10.1103/PhysRevC.66.064321
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2002HA30      Phys.Rev. C65, 064315 (2002)

N.J.Hammond, G.D.Jones, P.A.Butler, R.D.Humphreys, P.T.Greenlees, P.M.Jones, R.Julin, S.Juutinen, A.Keenan, H.Kettunen, P.Kuusiniemi, M.Leino, M.Muikku, P.Nieminen, P.Rahkila, J.Uusitalo, S.V.Khlebnikov

Observation of K = 1/2 Octupole Deformed Bands in 227Th

NUCLEAR REACTIONS 226Ra(α, 3n), E=33 MeV; measured Eγ, Iγ, γγ-coin. 227Th deduced levels, J, π, configurations, B(E1)/B(E2), octupole correlations. Jurosphere array.

doi: 10.1103/PhysRevC.65.064315
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2002HE01      Phys.Rev. C65, 014303 (2002)

R.-D.Herzberg, N.Amzal, F.Becker, P.A.Butler, A.J.C.Chewter, J.F.C.Cocks, O.Dorvaux, K.Eskola, J.Gerl, P.T.Greenlees, N.J.Hammond, K.Hauschild, K.Helariutta, F.Hessberger, M.Houry, G.D.Jones, P.M.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, H.Kettunen, T.L.Khoo, W.Korten, P.Kuusiniemi, Y.Le Coz, M.Leino, C.J.Lister, R.Lucas, M.Muikku, P.Nieminen, R.D.Page, P.Rahkila, P.Reiter, Ch.Schlegel, C.Scholey, O.Stezowski, Ch.Theisen, W.H.Trzaska, J.Uusitalo, H.J.Wollersheim

Spectroscopy of Transfermium Nuclei: 102252No

NUCLEAR REACTIONS 206Pb(48Ca, 2n), E=215.5 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 252No deduced levels, J, π, rotational band, deformation. Jurosphere II array, recoil-decay tagging, comparison with neighboring isotope.

doi: 10.1103/PhysRevC.65.014303
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2002HE24      Eur.Phys.J. A 15, 205 (2002)

R.D.Herzberg, N.Amzal, J.E.Bastin, F.Becker, P.M.T.Brew, P.A.Butler, A.J.C.Chewter, J.F.C.Cocks, O.Dorvaux, K.Eskola, J.Gerl, P.T.Greenlees, N.J.Hammond, K.Hauschild, K.Helariutta, F.Hessberger, M.Houry, A.Hurstel, R.D.Humphreys, G.D.Jones, P.M.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, H.Kettunen, T.L.Khoo, W.Korten, P.Kuusiniemi, Y.Le Coz, M.Leino, A.P.Leppanen, C.J.Lister, R.Lucas, M.Muikku, P.Nieminen, R.D.Page, T.Page, P.Rahkila, P.Reiter, Ch.Schlegel, C.Scholey, G.Sletten, O.Stezowski, Ch.Theisen, W.H.Trzaska, J.Uusitalo, H.J.Wollersheim

In-beam spectroscopy of 253, 254No

NUCLEAR REACTIONS 48Ca(207Pb, 2n), (208Pb, 2n), E not given; measured conversion electron spectra. 253,254No deduced transitions ICC, level configurations.

doi: 10.1140/epja/i2001-10255-3
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2002HU14      Eur.Phys.J. A 15, 329 (2002)

A.Hurstel, M.Rejmund, E.Bouchez, P.T.Greenlees, K.Hauschild, S.Juutinen, W.Korten, Y.Le Coz, P.Nieminen, Ch.Theisen, A.N.Andreyev, F.Becker, T.Enqvist, P.M.Jones, R.Julin, H.Kankaanpaa, A.Keenan, P.Kuusiniemi, M.Leino, A-P.Leppanen, M.Muikku, J.Pakarinen, P.Rahkila, J.Uusitalo

Isomeric states in proton-unbound 187, 189Bi isotopes

NUCLEAR REACTIONS 109Ag(82Kr, 2n), E=337 MeV; 109Ag(83Kr, 3n), E=340 MeV; 107Ag(82Kr, 2n), E=339 MeV; measured prompt and delayed Eγ, Iγ, (recoil)γ-coin. 187,189Bi deduced isomeric states J, π, T1/2. Jurosphere array, recoil-decay tagging technique. Systematics of isomeric states in neighboring nuclides discussed.

doi: 10.1140/epja/i2002-10032-x
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2002JE09      Phys.Rev. C66, 011301 (2002)

D.G.Jenkins, A.N.Andreyev, R.D.Page, M.P.Carpenter, R.V.F.Janssens, C.J.Lister, F.G.Kondev, T.Enqvist, P.T.Greenlees, P.M.Jones, R.Julin, S.Juutinen, H.Kettunen, P.Kuusiniemi, M.Leino, A.-P.Leppanen, P.Nieminen, J.Pakarinen, P.Rahkila, J.Uusitalo, C.D.O'Leary, P.Raddon, A.Simons, R.Wadsworth, D.T.Joss

Confirmation of Triple Shape Coexistence in 179Hg: Focal plane spectroscopy of the α decay of 183Pb

RADIOACTIVITY 183,183mPb(α) [from 144Sm(42Ca, 3n)]; measured Eα, Iα, αγ-coin; deduced branching ratios, hindrance factors. 183Pb, 179Hg deduced levels, J, π, shape coexistance features. Mass separator.

NUCLEAR REACTIONS 144Sm(42Ca, 3n), E=200 MeV; measured prompt and delayed Eγ, Iγ, (recoil)γ-coin. Jurosphere II array.

doi: 10.1103/PhysRevC.66.011301
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2002JO20      Phys.Rev. C 66, 054311 (2002)

D.T.Joss, J.Simpson, R.D.Page, S.L.King, N.Amzal, D.E.Appelbe, T.Back, M.A.Bentley, B.Cederwall, J.F.C.Cocks, D.M.Cullen, P.T.Greenlees, K.Helariutta, P.M.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, A.Keenan, H.Kettunen, P.Kuusiniemi, M.Leino, M.Muikku, A.Savelius, J.Uusitalo, D.D.Warner, S.J.Williams, R.Wyss

Yrast spectroscopy in the neutron-deficient nucleus 169Os

NUCLEAR REACTIONS 112Sn(60Ni, n2p), E=265 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 169Os deduced high-spin levels, J, π, configurations. Jurosphere array, recoil-decay tagging. Comparisons with neighboring nuclides and with model predictions.

doi: 10.1103/PhysRevC.66.054311
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2002JU12      Eur.Phys.J. A 15, 189 (2002)

R.Julin, P.T.Greenlees, K.Helariutta, P.Jones, S.Juutinen, A.-P.Leppanen, H.Kankaanpaa, A.Keenan, H.Kettunen, P.Kuusiniemi, M.Leino, M.Muikku, P.Nieminen, J.Pakarinen, P.Rahkila, J.Uusitalo, D.T.Joss, S.J.Williams, D.G.Jenkins, N.-S.Kelsall, R.Wadsworth, K.Hauschild, A.Hurstel, W.Korten, Y.Le Coz, A.N.Andreyev, P.Van Duppen, M.Huyse, K.Van de Vel, C.J.Moore, C.D.O'Leary, R.D.Page, M.J.Taylor, W.Reviol, M.B.Smith

In-beam studies of very neutron-deficient heavy nuclei

NUCLEAR REACTIONS 144Sm(36Ar, 4n), (42Ca, 4n), 112Sn(64Zn, 2n), 171Yb(28Si, 5n), 142Nd(52Cr, 4n), E not given; measured Eγ, Iγ, (recoil)γ-coin. 182Pb, 190Po deduced transitions. Recoil-decay tagging.

doi: 10.1140/epja/i2001-10252-6
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2002VA13      Phys.Rev. C65, 064301 (2002)

K.Van de Vel, A.N.Andreyev, M.Huyse, P.Van Duppen, J.F.C.Cocks, O.Dorvaux, P.T.Greenlees, K.Helariutta, P.Jones, R.Julin, S.Juutinen, H.Kettunen, P.Kuusiniemi, M.Leino, M.Muikku, P.Nieminen, K.Eskola, R.Wyss

Identification of Low-Lying Proton-Based Intruder States in 189-193Pb

RADIOACTIVITY 193,195,197Po(α) [from 166Er(32S, 5n), 169Tm(32S, 5np), 160Dy(40Ar, 5n)]; measured Eα, Eγ, E(ce), αγ-, α(ce)-coin. 189,191,193Pb deduced levels, J, π, configurations, ICC. Potential energy surface calculations.

doi: 10.1103/PhysRevC.65.064301
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2001AM09      Acta Phys.Pol. B32, 2519 (2001)

N.Amzal, P.A.Butler, P.T.Greenlees, R.-D.Herzberg, R.D.Humphreys, H.Kankaanpaa, J.Bastin, F.Becker, P.M.Brew, J.F.C.Cocks, R.A.Cunningham, T.Czosnyka, K.Eskola, J.Gerl, N.J.Hammond, K.Hauschild, P.Heikinen, K.Helariutta, F.-P.Hessberger, A.Hurstel, J.Iwanicki, G.D.Jones, P.M.Jones, R.Julin, S.Juutinen, A.Keenan, H.Kettunen, S.Khlebnikov, T.-L.Khoo, W.Korten, P.Kuusiniemi, Y.LeCoz, M.Leino, M.Muikku, P.Nieminen, T.Page, P.Rahkila, P.Reiter, C.S.Scholey, G.Sletten, O.Stezowski, C.Theisen, J.Uusitalo, H.-J.Wollersheim

The Structure of Heavy Octupole and Superheavy Quadrupole Deformed Nuclei

NUCLEAR REACTIONS 226Ra(40Ar, 40Ar'), E=60 MeV; measured Eγ, Iγ, (particle)γ-coin following Coulomb excitation. 208Pb(48Ca, 2n), E=216 MeV; measured E(ce), I(ce), (recoil)(ce)-coin. 254No deduced transitions.


2001BU11      Acta Phys.Pol. B32, 619 (2001)

P.A.Butler, A.J.Chewter, H.Kankaanpaa, R.D.Herzberg, F.Becker, J.F.C.Cocks, O.Dorvaux, K.Eskola, J.Gerl, P.T.Greenlees, N.Hammond, K.Helariutta, F.P.Hessberger, M.Houry, R.D.Humphreys, A.Hurstel, G.D.Jones, R.Julin, S.Juutinen, A.Keenan, H.Kettunen, T.L.Khoo, W.Korten, P.Kuusiniemi, Y.Le Coz, M.Leino, R.Lucas, M.Muikku, P.Nieminen, R.D.Page, T.Page, P.Rahkila, P.Reiter, A.Savelius, Ch.Schlegel, C.Theisen, W.H.Trzaska, J.Uusitalo, H.J.Wollersheim

Towards In-Beam Spectroscopy of the Heaviest Elements

NUCLEAR REACTIONS 206,208Pb(48Ca, 2n), E ≈ 215 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 252,254No deduced rotational bands, transitions B(E2). 124Sn(48Ca, xn)165Yb/166Yb/167Yb, E=215 MeV; measured E(ce), I(ce), (recoil)(ce)-coin. Gas-filled separator, recoil-decay tagging.


2001JO11      Nucl.Phys. A689, 631 (2001)

D.T.Joss, S.L.King, R.D.Page, J.Simpson, A.Keenan, N.Amzal, T.Back, M.A.Bentley, B.Cederwall, J.F.C.Cocks, D.M.Cullen, P.T.Greenlees, K.Helariutta, P.M.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, H.Kettunen, P.Kuusiniemi, M.Leino, M.Muikku, A.Savelius, J.Uusitalo, S.J.Williams

Identification of Excited States in 167Os and 168Os: Shape coexistence at extreme neutron deficiency

NUCLEAR REACTIONS 112Sn(58Ni, 2p), (58Ni, n2p), E=266 MeV; measured Eγ, Iγ, (recoil)γ-, γγ-coin. 167,168Os deduced high-spin levels, J, π, configurations, shape coexistence. Jurosphere spectrometer, gas-filled separator, cranked mean-field calculations.

doi: 10.1016/S0375-9474(00)00692-8
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2001JU03      Acta Phys.Pol. B32, 645 (2001)

R.Julin, P.T.Greenlees, K.Helariutta, P.Jones, S.Juutinen, H.Kankaanpaa, A.Keenan, H.Kettunen, P.Kuusiniemi, M.Leino, M.Muikku, P.Nieminen, P.Rahkila, J.Uusitalo, D.T.Joss, S.J.Williams, N.-S.Kelsall, R.Wadsworth, K.Hauschild, A.Hurstel, W.Korten, Y.LeCoz, A.N.Andreyev, K.Van de Vel, C.J.Moore, C.D.O'Leary, R.D.Page, M.J.Taylor, W.Reviol, M.B.Smith

Probing Structures of Exotic Heavy Nuclei

NUCLEAR REACTIONS 112Sn(64Zn, 2n), E not given; 142Nd(52Cr, 4n), E not given; measured Eγ, Iγ, (recoil)γ-coin. 174Hg, 190Po deduced levels, J, π. Recoil-decay tagging. Level systematics in neighboring nuclides discussed.

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2001KE05      Acta Phys.Pol. B32, 989 (2001)

H.Kettunen, P.T.Greenlees, K.Helariutta, P.Jones, R.Julin, S.Juutinen, P.Kuusiniemi, M.Leino, M.Muikku, P.Nieminen, J.Uusitalo

Towards Higher Sensitivity at the RITU Focal Plane

RADIOACTIVITY 160,161Re, 164,165m,167Ir(p) [from 106Cd(64Zn, xnyp)]; measured Ep, T1/2. 164Ir deduced level J, π, configuration, spectroscopic factor. Mass-separated sources.


2001KE06      Phys.Rev. C63, 044315 (2001)

H.Kettunen, J.Uusitalo, M.Leino, P.Jones, K.Eskola, P.T.Greenlees, K.Helariutta, R.Julin, S.Juutinen, H.Kankaanpaa, P.Kuusiniemi, M.Muikku, P.Nieminen, P.Rahkila

α Decay Studies of the Nuclides 195Rn and 196Rn

RADIOACTIVITY 191,191m,192Po, 195,195m,196Rn(α) [from 142Nd(56Fe, xn) and subsequent decay]; measured Eα, T1/2; deduced possible deformation features. Mass-separated sources.

doi: 10.1103/PhysRevC.63.044315
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2001KE09      Phys.Rev. C63, 064309 (2001)

A.Keenan, R.D.Page, J.Simpson, N.Amzal, J.F.C.Cocks, D.M.Cullen, P.T.Greenlees, S.L.King, K.Helariutta, P.Jones, D.T.Joss, R.Julin, S.Juutinen, H.Kankaanpaa, P.Kuusiniemi, M.Leino, M.Muikku, A.Savelius, M.B.Smith, M.J.Taylor

First Observation of Excited States in the Neutron Deficient N = 86 Isotones 159Ta and 160W

NUCLEAR REACTIONS 106Cd(58Ni, 2n2p), (58Ni, 2n3p), E=286, 291, 298 MeV; measured Eγ, Iγ, (recoil)γ-, γγ-coin. 159Ta, 160W deduced levels, J, π, configurations. Comparisons with neighboring nuclides. Jurosphere array, mass separation, recoil-decay tagging.

doi: 10.1103/PhysRevC.63.064309
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2001KU07      Acta Phys.Pol. B32, 1009 (2001)

P.Kuusiniemi, J.F.C.Cocks, K.Eskola, P.T.Greenlees, K.Helariutta, P.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, A.Keenan, H.Kettunen, M.Leino, M.Muikku, P.Nieminen, P.Rahkila, J.Uusitalo

Studies of 225, 226U Alpha Decay Chains

RADIOACTIVITY 225,226U, 221,222Th, 218Ra, 213Rn(α) [from 208Pb(22Ne, X), (18O, X) and subsequent decays]; measured Eα, Iα, T1/2. Comparisons with previous results. Mass-separated sources.


2001MU26      Phys.Rev. C64, 044308 (2001)

M.Muikku, P.T.Greenlees, K.Hauschild, K.Helariutta, D.G.Jenkins, P.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, N.S.Kelsall, H.Kettunen, P.Kuusiniemi, M.Leino, C.J.Moore, P.Nieminen, C.D.O'Leary, R.D.Page, P.Rahkila, W.Reviol, M.J.Taylor, J.Uusitalo, R.Wadsworth

Shape Coexistence in 183Tl

NUCLEAR REACTIONS 144Sm(42Ca, 2np), E=209 MeV; measured prompt and delayed Eγ, Iγ, γγ-, (recoil)γ-coin. 183Tl deduced levels T1/2, possible J, π, configurations. Jurosphere II array, recoil-decay tagging. Level systematics in neighboring isotopes discussed.

doi: 10.1103/PhysRevC.64.044308
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2001NI04      Acta Phys.Pol. B32, 1019 (2001)

P.Nieminen, J.F.C.Cocks, O.Dorvaux, P.T.Greenlees, K.Helariutta, P.M.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, H.Kettunen, P.Kuusiniemi, M.Leino, M.Muikku, P.Rahkila, A.Savelius, J.Uusitalo, A.N.Andreyev, F.Becker, K.Eskola, K.Hauschild, M.Houry, M.Huyse, W.Korten, Y.le Coz, R.Lucas, T.Lonnroth, Ch.Theisen, K.Van de Vel, P.Van Duppen, N.Amzal, P.A.Butler, N.Hammond, C.Scholey, R.Wyss

Gamma-Ray Spectroscopy of 191, 193Bi

NUCLEAR REACTIONS 142Nd(52Cr, 2np), E not given; 165Ho(32S, 4n), E=144-159 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 191,193Bi deduced levels, J, π.


2001RA09      Acta Phys.Pol. B32, 773 (2001)

P.Rahkila, T.Grahn, K.Eskola, J.Gerl, P.T.Greenlees, P.Jones, D.T.Joss, R.Julin, S.Juutinen, H.Kankaanpaa, A.Keenan, H.Kettunen, I.Kojouharov, P.Kuusiniemi, M.Leino, A.Melarangi, C.J.Moore, M.Muikku, P.Nieminen, R.D.Page, C.Scholey, J.Uusitalo

Characteristics of Segmented Super Clover Detector in Close Geometry Decay Measurements

NUCLEAR REACTIONS 150Sm(42Ca, 4n), E not given; measured Eγ, Iγ, (recoil)γ-, γγ-coin.

RADIOACTIVITY 188Pb(IT) [from 150Sm(42Ca, 4n)]; measured Eγ, Iγ, γγ-coin.


2001SC09      Phys.Rev. C63, 034321 (2001)

C.Scholey, D.M.Cullen, E.S.Paul, A.J.Boston, P.A.Butler, T.Enqvist, C.Fox, H.C.Scraggs, S.L.Shepherd, O.Stezowski, A.M.Bruce, P.M.Walker, M.Caamano, J.Garces Narro, M.A.Bentley, D.T.Joss, O.Dorvaux, P.T.Greenlees, K.Helariutta, P.M.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, H.Kettunen, P.Kuusiniemi, M.Leino, M.Muikku, P.Nieminen, P.Rahkila, J.Uusitalo

Recoil Isomer Tagging in the Proton-Rich Odd-Odd N = 77 Isotones, 65142Tb and 67144Ho

NUCLEAR REACTIONS 92Mo(54Fe, np), (54Fe, n3p), E=226, 236 MeV; measured prompt and delayed Eγ, Iγ, γγ-, (recoil)γ-coin. 142Tb, 144Ho deduced high-spin levels, possible J, π, isomeric states T1/2, configurations, deformation. Jurosphere II array, recoil isomer tagging. Cranked mean-field calculations.

doi: 10.1103/PhysRevC.63.034321
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2001SC14      Acta Phys.Pol. B32, 1005 (2001)

C.Scholey, D.M.Cullen, E.S.Paul, M.A.Bentley, A.J.Boston, A.M.Bruce, P.A.Butler, M.Caamano, O.Dorvaux, T.Enqvist, C.Fox, J.Garces Narro, P.T.Greenlees, K.Helariutta, P.M.Jones, D.T.Joss, R.Julin, S.Juutinen, H.Kankaanpaa, H.Kettunen, P.Kuusiniemi, M.Leino, M.Muikku, P.Nieminen, P.Rahkila, H.C.Scraggs, S.L.Shepherd, O.Stezowski, J.Uusitalo, P.M.Walker

Recoil Isomer Tagging on Proton-Rich Odd-Odd N = 77 Isotones 142Tb and 144Ho

NUCLEAR REACTIONS 92Mo(54Fe, np), (54Fe, n3p), E=226, 236 MeV; measured prompt and delayed Eγ, Iγ, (recoil)γ-, γγ-coin. 142Tb, 144Ho deduced high spin levels, possible J, π. Jurosphere array, recoil isomer tagging.


2001UU01      Acta Phys.Pol. B32, 1015 (2001)

J.Uusitalo, H.Kettunen, A.N.Andreyev, K.Eskola, P.T.Greenlees, K.Helariutta, M.Huyse, P.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, P.Kuusiniemi, M.Leino, M.Muikku, P.Nieminen, P.Rahkila, K.Van del Vel, P.Van Duppen

Alpha Decay Studies of Translead Nuclei at the Proton Drip Line

RADIOACTIVITY 191,192Po, 195,196Rn(α); measured Eα, T1/2, hindrance factors.


2000BY02      Eur.Phys.J. A 7, 41 (2000)

A.P.Byrne, A.M.Baxter, G.D.Dracoulis, S.M.Mullins, T.Kibedi, T.R.McGoram, K.Helariutta, J.F.C.Cocks, P.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, H.Kettunen, P.Kuusiniemi, M.Leino, M.Muikku, P.Nieminen, P.Rahkila, A.Savelius

Microsecond Isomers in 187Tl and 188Pb

NUCLEAR REACTIONS 155Gd(36Ar, 4n), (36Ar, 3n), (36Ar, 3np), 157Gd(36Ar, 5n), E=176 MeV; measured Eγ, Iγ, γγ-, (recoil)γ-coin. 159Tb(32S, 4n), E=158 MeV; measured Eγ, Iγ, delayed γγ-coin. 187Tl deduced levels, J, π. 187Tl, 187,188Pb deduced isomers T1/2. Recoil separator.

RADIOACTIVITY 182,183,184Hg, 186,187,188Pb(α) [from 155,157Gd(36Ar, X)]; measured Eα, Iα.

doi: 10.1007/s100500050008
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2000JE09      Phys.Rev. C62, 021302 (2000)

D.G.Jenkins, M.Muikku, P.T.Greenlees, K.Hauschild, K.Helariutta, P.M.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, N.S.Kelsall, H.Kettunen, P.Kuusiniemi, M.Leino, C.J.Moore, P.Nieminen, C.D.O'Leary, R.D.Page, P.Rakhila, W.Reviol, M.J.Taylor, J.Uusitalo, R.Wadsworth

First Observation of Excited States in 182Pb

NUCLEAR REACTIONS 144Sm(42Ca, 4n), E=213 MeV; measured Eγ, Iγ, (recoil)γ-coin. 182Pb deduced levels, possible J, π, rotational band, shape coexistence features. Recoil decay tagging.

doi: 10.1103/PhysRevC.62.021302
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2000KI33      Phys.Rev. C62, 067301 (2000)

S.L.King, R.D.Page, J.Simpson, A.Keenan, N.Amzal, A.J.Chewter, J.F.C.Cocks, D.M.Cullen, O.Dorvaux, P.T.Greenlees, K.Helariutta, P.Jones, D.T.Joss, R.Julin, S.Juutinen, H.Kankaanpaa, H.Kettunen, P.Kuusiniemi, M.Leino, R.C.Lemmon, M.Muikku, P.Nieminen, A.Savelius, S.L.Shepherd, M.B.Smith, M.J.Taylor, J.Uusitalo

First Observation of Excited States in the Neutron Deficient Nuclei 164Os and 166Os

NUCLEAR REACTIONS 106Cd(63Cu, 2np), E=292 MeV; 112Sn(58Ni, 2n2p), E=286 MeV; 106Cd(60Ni, 2n), E=257 MeV; measured Eγ, Iγ, (recoil)γ-coin. 164,166Os deduced levels, possible J, π, configurations. Recoil-decay tagging. Level systematics in neighboring nuclides discussed.

doi: 10.1103/PhysRevC.62.067301
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2000LA36      Eur.Phys.J. A 9, 307 (2000)

M.Lach, P.Bednarczyk, P.T.Greenlees, K.Helariutta, P.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, H.Kettunen, P.Kuusiniemi, M.Leino, W.Meczynski, M.Muikku, P.Nieminen, P.Rahkila, J.Styczen, J.Uusitalo

Identification of the 13/2+ Isomer in 199At

NUCLEAR REACTIONS 146Nd(56Fe, X)199At, E=250 MeV; measured Eα, Eγ, αγ-coin, T1/2 following mass separation. 199At deduced isomeric level, J, π, T1/2. Comparison with results from nearby isotopes.

doi: 10.1007/s100500070014
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2000SM06      J.Phys.(London) G26, 787 (2000)

M.B.Smith, R.Chapman, J.F.C.Cocks, K.-M.Spohr, O.Dorvaux, K.Helariutta, P.M.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, H.Kettunen, P.Kuusiniemi, Y.Le Coz, M.Leino, D.J.Middleton, M.Muikku, P.Nieminen, P.Rahkila, A.Savelius

Isomeric State in the Doubly Odd 196At Nucleus

NUCLEAR REACTIONS 165Ho(36Ar, 5n), E=178 MeV; measured Eα, Eγ, αγ-coin, T1/2, conversion coefficient. 196At deduced isomer energy, spin, T1/2, γ decay multipolarity. Recoil decay tagging method.

doi: 10.1088/0954-3899/26/6/303
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1999AN10      Phys.Rev.Lett. 82, 1819 (1999)

A.N.Andreyev, M.Huyse, P.Van Duppen, J.F.C.Cocks, K.Helariutta, H.Kettunen, P.Kuusiniemi, M.Leino, W.H.Trzaska, K.Eskola, R.Wyss

Hindered (Δl = 0) Alpha Decay and Shape Staggering in 191Po

RADIOACTIVITY 191Po(α) [from 160Dy(36Ar, 5n), E=196 MeV]; measured Eα, Eγ, αγ-coin, T1/2. 191Po deduced α-decay from isomeric levels, J, π, configurations, deformation. 187Pb levels deduced configurations. Cranked mean-field calculations.

NUCLEAR REACTIONS 160Dy(36Ar, 5n), E=196 MeV; measured (recoil)α-, αγ-coin following residual nucleus decay.

doi: 10.1103/PhysRevLett.82.1819
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1999AN22      J.Phys.(London) G25, 835 (1999)

A.N.Andreyev, N.Bijnens, M.Huyse, P.Van Duppen, M.Leino, T.Enqvist, P.Kuusiniemi, W.Trzaska, J.Uusitalo, N.Fotiades, J.A.Cizewski, D.P.McNabb, K.Y.Ding, C.N.Davids, R.V.F.Janssens, D.Seweryniak, M.P.Carpenter, H.Amro, P.Decrock, P.Reiter, D.Nisius, L.T.Brown, S.Fischer, T.Lauritsen, J.Wauters, C.R.Bingham, L.F.Conticchio

α-Decay Characteristics of Neutron-Deficient 190, 192Po Nuclei and Alpha Branching Ratios of 186, 188Pb Isotopes

RADIOACTIVITY 190,192Po(α) [from 164Er(32S, xn) and 144Sm(48Ti, xn)]; measured Eα, Iα, T1/2. 186,188Pb deduced α-branching ratios. Systematics of reduced α-widths in mass region discussed.


1999AN36      Acta Phys.Pol. B30, 1255 (1999)

A.N.Andreyev, N.Bijnens, J.F.Cocks, K.Eskola, K.Helariutta, M.Huyse, H.Kettunen, P.Kuusiniemi, M.Leino, W.H.Trzaska, P.Van Duppen, R.Wyss

Fine Structure in the Alpha-Decay of the Neutron-Deficient 191Po and 191Bi Isotopes

RADIOACTIVITY 191,191mPo, 191,191mBi(α) [from 160Dy(36Ar, xnyp)]; measured Eα, Eγ, T1/2, αγ-coin; deduced hindrance factors. 187Pb deduced levels, α-branching ratios. RITU gas filled separator.


1999BA13      Nucl.Phys. A646, 399 (1999)

R.A.Bark, S.Tormanen, T.Back, B.Cederwall, S.W.Odegard, J.F.C.Cocks, K.Helariutta, P.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, H.Kettunen, P.Kuusiniemi, M.Leino, M.Muikku, P.Rahkila, A.Savelius

Bandcrossings in 171Os

NUCLEAR REACTIONS 116Sn(58Ni, n2p), E=267 MeV; measured Eγ, Iγ, (recoil)γ-, γγ-coin. 171Os deduced high-spin levels, rotational band structure, configurations, alignments, bandcrossings. Jurosphere array, recoil separator.

doi: 10.1016/S0375-9474(98)00645-9
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1999BA84      Nucl.Phys. A657, 113 (1999)

R.A.Bark, S.Tormanen, T.Back, B.Cederwall, S.W.Odegard, J.F.C.Cocks, K.Helariutta, P.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, H.Kettunen, P.Kuusiniemi, M.Leino, M.Muikku, P.Rahkila, A.Savelius, M.Bergstrom, F.Ingebretsen, A.Maj, M.Mattiuzzi, W.Mueller, L.L.Riedinger, T.Saitoh, P.O.Tjom

Coexistence of Triaxial and Prolate Shapes in 171Ir

NUCLEAR REACTIONS 116Sn(58Ni, 2np), E=260, 267 MeV; measured Eγ, Iγ, (recoil)γ-, γγ-coin. 171Ir deduced high-spin levels, J, π, rotational band structure, configurations, triaxiality, shaped-coexistance, band mixing. Cranked mean-field calculations, potential energy surfaces, tilted-axis cranking.

doi: 10.1016/S0375-9474(99)00319-X
Citations: PlumX Metrics

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


1999GR28      Eur.Phys.J. A 6, 269 (1999)

P.T.Greenlees, P.Kuusiniemi, N.Amzal, A.Andreyev, P.A.Butler, K.J.Cann, J.F.C.Cocks, O.Dorvaux, T.Enqvist, P.Fallon, B.Gall, M.Guttormsen, D.Hawcroft, K.Helariutta, F.P.Hessberger, F.Hoellinger, G.D.Jones, P.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, H.Kettunen, M.Leino, S.Messelt, M.Muikku, S.Odegard, R.D.Page, A.Savelius, A.Schiller, S.Siem, W.H.Trzaska, T.Tveter, J.Uusitalo

Fine Structure in the Alpha Decays of 226U and 230Pu

RADIOACTIVITY 226U(α) [from 208Pb(22Ne, 4n)]; 230Pu(α) [from 208Pb(26Mg, 4n)]; measured Eα, Iα, T1/2; deduced branching ratios, hindrance factors. 226U deduced level energy, deformation. Comparisons with neighboring nuclides.

doi: 10.1007/s100500050345
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