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NSR database version of April 25, 2024.

Search: Author = R.G.Allatt

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1999HE32      Eur.Phys.J. A 6, 289 (1999)

K.Helariutta, J.F.C.Cocks, T.Enqvist, P.T.Greenlees, P.Jones, R.Julin, S.Juutinen, P.Jamsen, H.Kankaanpaa, H.Kettunen, P.Kuusiniemi, M.Leino, M.Muikku, M.Piiparinen, P.Rahkila, A.Savelius, W.H.Trzaska, S.Tormanen, J.Uusitalo, R.G.Allatt, P.A.Butler, R.D.Page, M.Kapusta

Gamma-Ray Spectroscopy of ^192-195Po

NUCLEAR REACTIONS ¹⁶⁰Dy(³⁶Ar, 4n), (³⁶Ar, 2n), (³⁶Ar, n), E=178, 196 MeV; ¹⁷⁰Yb(²⁸Si, 4n), (²⁸Si, 3n), E=143 MeV; ¹⁷¹Yb(²⁸Si, 5n), (²⁸Si, 4n), E=155 MeV; ¹⁶⁶Er(³²S, 4n), E=172 MeV; measured prompt, delayed Eγ, Iγ, γγ-, (recoil)γ-coin. ^{192,193,194,195}Po deduced levels, J, π, configurations, collective features. Level systematics of Po isotopes discussed. Mass separator, recoil decay tagging.

doi: 10.1007/s100500050347
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1999LE36      Acta Phys.Pol. B30, 1245 (1999)

M.Leino, R.G.Allatt, A.N.Andreyev, J.F.C.Cocks, O.Dorvaux, T.Enqvist, K.Eskola, K.Helariutta, M.Huyse, P.M.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, A.Keenan, H.Kettunen, P.Kuusiniemi, M.Muikku, R.D.Page, P.Rahkila, A.Savelius, W.H.Trzaska, J.Uusitalo, P.Van Duppen

Decay and In-Beam Studies of Neutron-Deficient Po and Ra Isotopes at JYFL

1999PA20      J.Phys.(London) G25, 771 (1999)

R.D.Page, R.G.Allatt, T.Enqvist, K.Eskola, P.T.Greenlees, P.Jones, R.Julin, P.Kuusiniemi, M.Leino, W.H.Trzaska, J.Uusitalo

Fine Structure in ¹⁹²Po α-Decay and Shape Coexistence in ¹⁸⁸Pb

RADIOACTIVITY ¹⁹²Po(α) [from ¹⁶⁰Dy(³⁶Ar, 4n), E=172-184 MeV]; measured Eα, Iα(t), (ce)α-coin. ¹⁸⁸Pb deduced levels, J, π, shape coexistence.

doi: 10.1088/0954-3899/25/4/033
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1999RE16      Phys.Rev. C60, 024311 (1999)

A.T.Reed, O.Tarasov, R.D.Page, D.Guillemaud-Mueller, Yu.E.Penionzhkevich, R.G.Allatt, J.C.Angelique, R.Anne, C.Borcea, V.Burjan, W.N.Catford, Z.Dlouhy, C.Donzaud, S.Grevy, M.Lewitowicz, S.M.Lukyanov, F.M.Marques, G.Martinez, A.C.Mueller, P.J.Nolan, J.Novak, N.A.Orr, F.Pougheon, P.H.Regan, M.G.Saint-Laurent, T.Siiskonen, E.Sokol, O.Sorlin, J.Suhonen, W.Trinder, S.M.Vincent

Radioactivity of Neutron-Rich Oxygen, Fluorine, and Neon Isotopes

RADIOACTIVITY ¹⁹B, ²⁴O, ^25,26,27,29F, ^28,29,30Ne(β^-) [from ³⁶S fragmentation]; measured Eγ, Iγ, βγ-, βn-coin, T_1/2, neutron emission probabilities; deduced log ft. ²⁴F, ^25,26Ne, ^28,30Na deduced levels, possible J, π. Comparison with shell model calculations.

doi: 10.1103/PhysRevC.60.024311
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1998AL27      Phys.Lett. 437B, 29 (1998)

R.G.Allatt, R.D.Page, M.Leino, T.Enqvist, K.Eskola, P.T.Greenlees, P.Jones, R.Julin, P.Kuusiniemi, W.H.Trzaska, J.Uusitalo

Fine Structure in ¹⁹²Po α-Decay and Shape Coexistence in ¹⁸⁸Pb

RADIOACTIVITY ¹⁹²Po(α) [from ¹⁶⁰Dy(³⁶Ar, 4n)]; measured α spectra; deduced branching, hindrance factors. ¹⁸⁸Pb deduced levels, J, π, configurations.

doi: 10.1016/S0370-2693(98)00939-3
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1998ES02      Phys.Rev. C57, 417 (1998)

K.Eskola, P.Kuusiniemi, M.Leino, J.F.C.Cocks, T.Enqvist, S.Hurskanen, H.Kettunen, W.H.Trzaska, J.Uusitalo, R.G.Allatt, P.T.Greenlees, R.D.Page

α Decay of the New Isotope ²⁰⁶Ac

NUCLEAR REACTIONS ¹⁷⁵Lu(³⁶Ar, xnyp), E=5.5 MeV/nucleon; measured yields; deduced evidence for ²⁰⁶Ac. Gas-filled separator, α-α position and time correlation method.

RADIOACTIVITY ²⁰⁶Ac(α); measured Eα, T_1/2; deduced isomeric levels. ²⁰⁷Ac(α); measured Eα, T_1/2. Comparison with model predictions.

doi: 10.1103/PhysRevC.57.417
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1997EN10      Nucl.Instrum.Methods Phys.Res. B126, 344 (1997)

T.Enqvist, J.Uusitalo, S.Hurskanen, P.Kuusiniemi, M.Leino, W.H.Trzaska, K.Helariutta, P.Jones, R.Julin, S.Juutinen, A.Savelius, K.Eskola, R.G.Allatt, R.D.Page, V.Ninov, C.Stodel

Recent applications of the JYFL gas-filled recoil separator

RADIOACTIVITY ^225,226U(α) [from ²⁰⁸Pb(²⁴Mg, X), (²²Ne, X)]; measured Eα, Iα, T_1/2 of decays of ^225,226U using RITU gas-filled separator at JYFL accelerator facility. Relevance to investigation of neutron-deficient isotopes between polonium and thorium, and discovery of new isotopes.

doi: 10.1016/S0168-583X(97)01093-8
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1997JU03      Acta Phys.Pol. B28, 269 (1997)

R.Julin, R.G.Allatt, P.A.Butler, K.J.Cann, J.F.C.Cocks, T.Enqvist, P.T.Greenlees, K.Helariutta, G.D.Jones, P.M.Jones, S.Juutinen, P.Jamsen, H.Kankaanpaa, P.Kuusiniemi, M.Leino, M.Muikku, R.D.Page, M.Piiparinen, A.Savelius, W.H.Trzaska, S.Tormanen, J.Uusitalo

Studies of Neutron-Rich and Heavy Nuclei with the New In-Beam Facilities at JYFL

NUCLEAR REACTIONS ¹¹⁶Cd(⁸⁴Kr, X), E=370 MeV; measured Eγ, Iγ, γγ-coin. ^114,116Cd deduced levels, J, π. ¹⁷⁰Yb(²⁸Si, 4n), ¹⁶⁰Dy(³⁶Ar, 4n), E not given; measured recoil α-decay associated Eγ, Iγ, γγ-coin. ^192,194Po deduced levels, J, π. ²⁰⁸Pb(¹⁸O, 4n), E=95 MeV; measured E(ce), I(ce), (ce)(ce)-coin. ²²²Th deduced levels, J, π.

1997JU04      Acta Phys.Hung.N.S. 6, 169 (1997)

R.Julin, K.Helariutta, P.Jones, S.Juutinen, H.Kankaanpaa, P.Kuusiniemi, M.Leino, M.Muikku, A.Savelius, W.Trzaska, J.Uusitalo, R.G.Allatt, P.A.Butler, J.F.C.Cocks, P.T.Greenlees, R.D.Page, J.Simpson, R.Lemmon

Probing Shapes of Very Neutron Deficient Z ≈ 82 Nuclei using the Recoil-Decay Tagging Method

NUCLEAR REACTIONS ¹⁶⁰Dy(³⁶Ar, 4n), E=178 MeV; ¹⁴⁴Sm(³⁶Ar, 4n), E=190 MeV; measured Eγ, Iγ, α-spectra following recoil decay, α-tagged (recoil)γ-coin.

1997LA13      Phys.Rev. C55, R2127 (1997)

G.J.Lane, D.B.Fossan, I.Thorslund, P.Vaska, R.G.Allatt, E.S.Paul, L.Kaubler, H.Schnare, I.M.Hibbert, N.O'Brien, R.Wadsworth, W.Andrejtscheff, J.deGraaf, J.Simpson, I.Y.Lee, A.O.Macchiavelli, D.J.Blumenthal, C.N.Davids, C.J.Lister, D.Seweryniak, A.V.Afanasjev, I.Ragnarsson

Identification of Excited States in Doubly Odd ¹¹⁰Sb: Smooth band termination

NUCLEAR REACTIONS ⁵⁴Fe(⁵⁹Co, n2p), E=230 MeV; measured Eγ, Iγ, γγ(θ). ⁵⁶Fe(⁵⁸Ni, n3p), E=240 MeV; measured Eγ, Iγ, γγ(θ), mass-gated γ-spectra, nγ-coin. ⁵⁵Mn(⁵⁸Ni, n2p), E=240 MeV; measured Eγ, Iγ, γγ(θ), γ(t). ¹¹⁰Sb deduced high-spin levels, J, π, T_1/2, rotational bands, configurations, band termination features. Cranked Nilsson-Strutinsky calculations.

doi: 10.1103/PhysRevC.55.R2127
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1997UU01      Z.Phys. A358, 375 (1997)

J.Uusitalo, M.Leino, R.G.Allatt, T.Enqvist, K.Eskola, P.T.Greenlees, S.Hurskanen, A.Keenan, H.Kettunen, P.Kuusiniemi, R.D.Page, W.H.Trzaska

Alpha Decay of the New Isotope ¹⁷⁴Hg

RADIOACTIVITY ¹⁷⁴Hg(α) [from ¹⁴⁴Sm(³⁶Ar, 6n), E=180-230 MeV]; measured Eα, Iα, T_1/2, (α)(α)-coin; deduced ¹⁷⁴Hg decay. ¹⁷⁰Pt(α) [from ¹⁷⁴Pt(α-decay)]; ¹⁷⁵Hg(α) [from ¹⁴⁴Sm(³⁶Ar, 5n), E=180-230 MeV]; ¹⁷¹Pt(α) [from ¹⁷⁵Hg(α-decay)]; measured Eα, T_1/2.

NUCLEAR REACTIONS, ICPND ¹⁴⁴Sm(³⁶Ar, 6n), (³⁶Ar, 5n), (³⁶Ar, 4n), (³⁶Ar, 3n), E=180-230 MeV; measured Eα, Iα following recoil separation; deduced residuals production σ. Gas-filled recoil separator.

doi: 10.1007/s002180050342
Citations: PlumX Metrics

1996HE22      Phys.Rev. C54, R2799 (1996)

K.Helariutta, T.Enqvist, P.Jones, R.Julin, S.Juutinen, P.Jamsen, H.Kankaanpaa, P.Kuusiniemi, M.Leino, M.Muikku, M.Piiparinen, A.Savelius, W.H.Trzaska, S.Tormanen, J.Uusitalo, R.G.Allatt, P.A.Butler, P.T.Greenlees, R.D.Page

First Observation of Excited States in ¹⁹²Po

NUCLEAR REACTIONS ¹⁶⁰Dy(³⁶Ar, 4n), E=178 MeV; measured Eα, Iα, Eγ, Iγ, (recoil)γ-coin. ¹⁹²Po deduced levels, possible J, π, band structure.

doi: 10.1103/PhysRevC.54.R2799
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1996KA43      Z.Phys. A356, 235 (1996)

L.Kaubler, H.Schnare, D.B.Fossan, A.V.Afanasjev, W.Andrejtscheff, R.G.Allatt, J.DeGraaf, H.Grawe, I.M.Hibbert, I.Y.Lee, A.D.Macchiavelli, N.O'Brien, K.-H.Maier, E.S.Paul, H.Prade, I.Ragnarsson, J.Reif, R.Schubart, R.Schwengner, I.Thorslund, P.Vaska, R.Wadsworth, G.Winter

Collective Structures and Smooth Band Termination in ¹⁰⁹Sn

NUCLEAR REACTIONS ⁵⁴Fe(⁵⁹Co, n3p), E=230 MeV; measured γγγ-coin, energy correlations. ¹⁰⁹Sn deduced high-spin levels, J, π, band structure, dynamic moments of inertia.

doi: 10.1007/s002180050173
Citations: PlumX Metrics

1996LE09      Z.Phys. A355, 157 (1996)

M.Leino, J.Uusitalo, R.G.Allatt, P.Armbruster, T.Enqvist, K.Eskola, S.Hofmann, S.Hurskanen, A.Jokinen, V.Ninov, R.D.Page, W.H.Trzaska

Alpha Decay Studies of Neutron-Deficient Radium Isotopes

NUCLEAR REACTIONS ¹⁷⁵Lu(³⁵Cl, xn), E=157-199 MeV; ^170,171Yb(⁴⁰Ar, xn), E=214-224 MeV; ^170,171Yb(³⁶Ar, xn), E=190, 196 MeV; measured Eα, Iα; deduced evidence for ^{207,206,205,204,203,202}Ra.

RADIOACTIVITY ^{207,206,205,204,203,203m,202}Ra(α) [from ¹⁷⁵Lu(³⁵Cl, xn), E=157-199 MeV; ^170,171Yb(⁴⁰Ar, xn), E=214-224 MeV; ^170,171Yb(³⁶Ar, xn), E=190, 196 MeV]; measured Eα, Iα, T_1/2.

doi: 10.1007/s002180050093
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