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NSR database version of May 20, 2024.

Search: Author = R.J.Irvine

Found 16 matches.

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2001DA31      Hyperfine Interactions 132, 133 (2001)

C.N.Davids, P.J.Woods, J.C.Batchelder, C.R.Bingham, D.J.Blumenthal, L.T.Brown, B.C.Busse, M.P.Carpenter, L.F.Conticchio, T.Davinson, J.Deboer, S.J.Freeman, S.Hamada, D.J.Henderson, R.J.Irvine, R.V.F.Janssens, H.J.Maier, L.Muller, R.D.Page, H.T.Penttila, G.L.Poli, D.Seweryniak, F.Soramel, K.S.Toth, W.B.Walters, B.E.Zimmerman

Masses and Proton Separation Energies Obtained from Qα and Qp Measurements

ATOMIC MASSES 151Tm, 155Lu, 159Ta, 163,165Re, 166Os, 167,169Ir, 170Pt, 171,173Au, 174,176Hg, 177Tl, 180Pb; analyzed α-decay and proton-decay data; deduced mass excesses. Tm, Lu, Ta, Re, Ir, Au, Tl; deduced proton separation energies.

doi: 10.1023/A:1011941605006
Citations: PlumX Metrics


2000MA95      Phys.Rev. C62, 057303 (2000)

H.Mahmud, C.N.Davids, P.J.Woods, T.Davinson, D.J.Henderson, R.J.Irvine, D.Seweryniak, W.B.Walters

α Radioactivity of 162Os and 158W

RADIOACTIVITY 162Os, 158W(α) [from 106Cd(58Ni, 2n) and subsequent decay]; 158mW(α) [from 102Pd(58Ni, 2n)]; measured Eα, T1/2, reduced widths. Mass-separated sources, comparisons with previous results.

doi: 10.1103/PhysRevC.62.057303
Citations: PlumX Metrics


1999BA45      Eur.Phys.J. A 5, 49 (1999)

J.C.Batchelder, K.S.Toth, C.R.Bingham, L.T.Brown, L.F.Conticchio, C.N.Davids, R.J.Irvine, D.Seweryniak, W.B.Walters, J.Wauters, E.F.Zganjar, J.L.Wood, C.De Coster, B.Decroix, K.Heyde

Behavior of Intruder Based States in Light Bi and Tl Isotopes: The study of 187Bi α Decay

RADIOACTIVITY 187Bi(α) [from 97Mo(92Mo, np)]; measured Eα, Iα, T1/2. 183Tl deduced levels, possible J, π. 187Bi deduced excited level. Fragment mass analyzer. Neutron intruder state systematics discussed.

doi: 10.1007/s100500050255
Citations: PlumX Metrics


1999DA27      Pramana 53, 631 (1999)

C.N.Davids, P.J.Woods, D.Seweryniak, A.A.Sonzogni, J.C.Batchelder, C.R.Bingham, T.Davinson, D.J.Henderson, R.J.Irvine, G.L.Poli, J.Uusitalo, W.B.Walters

Proton Radioactivity - Spherical and Deformed

doi: 10.1007/s12043-999-0040-9
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1999PO09      Phys.Rev. C59, R2979 (1999)

G.L.Poli, C.N.Davids, P.J.Woods, D.Seweryniak, J.C.Batchelder, L.T.Brown, C.R.Bingham, M.P.Carpenter, L.F.Conticchio, T.Davinson, J.DeBoer, S.Hamada, D.J.Henderson, R.J.Irvine, R.V.F.Janssens, H.J.Maier, L.Muller, F.Soramel, K.S.Toth, W.B.Walters, J.Wauters

Proton and α Radioactivity below the Z = 82 Shell Closure

RADIOACTIVITY 177Tl, 171Au(p) [from 96Ru, 102Pd(78Kr, xnyp)]; measured Ep, T1/2 from ground, isomeric levels. 177Tl, 173Au, 169Ir(α); measured Eα, T1/2 from ground, isomeric levels. 177Tl, 171Au levels deduced J, π, spectroscopic factors. 177,177mTl, 173,173mAu, 169,169mIr, 165,165mRe, 171Au; deduced proton separation energies.

RADIOACTIVITY 176Hg(α); measured decay products, Eα, Iα; deduced %α branch, T1/2.

doi: 10.1103/PhysRevC.59.R2979
Citations: PlumX Metrics


1999TO11      Phys.Rev. C60, 011302 (1999)

K.S.Toth, C.R.Bingham, J.C.Batchelder, L.T.Brown, L.F.Conticchio, C.N.Davids, R.J.Irvine, D.Seweryniak, D.M.Moltz, W.B.Walters, J.Wauters, E.F.Zganjar

α-Decay Rates of 180, 182, 184Pb and the Z = 82 Shell Closure

RADIOACTIVITY 180,182,184Pb(α) [from 90,92,94Zr(92Mo, 2n)]; measured Eα, T1/2; deduced masses, reduced widths, shell closure effects. 176,178,180Hg deduced α-branching. Decay rate systematics for Z=76-90 dicsussed. Mass separator.

doi: 10.1103/PhysRevC.60.011302
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1998DA03      Phys.Rev.Lett. 80, 1849 (1998)

C.N.Davids, P.J.Woods, D.Seweryniak, A.A.Sonzogni, J.C.Batchelder, C.R.Bingham, T.Davinson, D.J.Henderson, R.J.Irvine, G.L.Poli, J.Uusitalo, W.B.Walters

Proton Radioactivity from Highly Deformed Nuclei

RADIOACTIVITY 141Ho(p) [from 92Mo(54Fe, 4np)]; 131Eu(p) [from 96Ru(40Ca, 4np)]; measured proton spectra, T1/2; deduced deformation effects. Nilsson model analysis.

doi: 10.1103/PhysRevLett.80.1849
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1998TO14      Phys.Rev. C58, 1310 (1998)

K.S.Toth, X.-J.Xu, C.R.Bingham, J.C.Batchelder, L.F.Conticchio, W.B.Walters, L.T.Brown, C.N.Davids, R.J.Irvine, D.Seweryniak, J.Wauters, E.F.Zganjar

Identification of 180Tl α Decay

RADIOACTIVITY 179,180,181Tl(α) [from 90Zr(92Mo, xnp), E=420 MeV]; measured Eα, Iα, T1/2. Fragment mass analyzer.

doi: 10.1103/PhysRevC.58.1310
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1997BA21      Z.Phys. A357, 121 (1997)

J.C.Batchelder, K.S.Toth, C.R.Bingham, L.T.Brown, L.F.Conticchio, C.N.Davids, T.Davinson, D.J.Henderson, R.J.Irvine, D.Seweryniak, W.B.Walters, P.J.Woods, J.Wauters, E.F.Zganjar

The α-Decay Properties of 186Bi

NUCLEAR REACTIONS 97Mo(92Mo, 2np), E=420 MeV; measured Eα, Iα, α(recoil)-coin. 186Bi deduced isomers α-decay T1/2, Eα. Double-sided Si strip detectors.

RADIOACTIVITY 186Bi(α) [from 97Mo(92Mo, 2np), E=420 MeV]; measured Eα, Iα, T1/2, isomers decay features. Double-sided Si strip detectors.

doi: 10.1007/s002180050223
Citations: PlumX Metrics


1997DA07      Phys.Rev. C55, 2255 (1997)

C.N.Davids, P.J.Woods, J.C.Batchelder, C.R.Bingham, D.J.Blumenthal, L.T.Brown, B.C.Busse, L.F.Conticchio, T.Davinson, S.J.Freeman, D.J.Henderson, R.J.Irvine, R.D.Page, H.T.Penttila, D.Seweryniak, K.S.Toth, W.B.Walters, B.E.Zimmerman

New Proton Radioactivities 165,166,167Ir and 171Au

NUCLEAR REACTIONS 92Mo(78Kr, xnp), E=357, 384 MeV; 96Ru(78Kr, 2np), E=389 MeV; measured fragment spectra, Eα, Iα, pα-energy correlation between proton-decaying residual and daughter subsequent α-decay. 171Au, 165,166,167Ir deduced proton decay Ep, Qp, T1/2, branching ratio, spectroscopic factors.

RADIOACTIVITY 171Au(p) [from 96Ru(78Kr, 2np), E=389 MeV]; 170Pt(α) [from 171Au(p-decay)]; 165,166,167Ir(p) [from 92Mo(78Kr, xnp), E=357, 384 MeV]; 164,165,166Os(α) [from 165,166,167Ir(p-decay)]; measured Eα, Iα, pα-energy correlation between proton-decaying residual and daughter subsequent α-decay. 171Au, 165,166,167Ir deduced proton decay Ep, Qp, T1/2, branching ratio, spectroscopic factors; analyzed α-decay chain data. 151Tm, 154Yb, 155Lu, 158Hf, 159Ta, 162W, 163Re, 166Os, 167Ir, 170Pt, 171mAu; deduced mass excess. 151Tm, 153,154,155Lu, 158Hf, 157m,158,159Ta, 161m,162,163Re, 165m,166,167Ir deduced proton separation energy.

doi: 10.1103/PhysRevC.55.2255
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1997IR01      Phys.Rev. C55, R1621 (1997)

R.J.Irvine, C.N.Davids, P.J.Woods, D.J.Blumenthal, L.T.Brown, L.F.Conticchio, T.Davinson, D.J.Henderson, J.A.Mackenzie, H.T.Penttila, D.Seweryniak, W.B.Walters

Proton Emission from Drip-Line Nuclei 157Ta and 161Re

RADIOACTIVITY 160W(α) [from 102Pd(58Ni, X), E=270 MeV]; 156Hf(α) [from 160W(α-decay)]; measured α-spectra. 161Re(α), (p) [from 106Cd(58Ni, X), E=270 MeV]; 157Ta(α), (p) [from 161Re(α-decay)]; measured α-, proton spectra, proton-decay T1/2. 156Hf, 160W deduced level population from proton decay. 153Lu deduced level population from α-decay.

doi: 10.1103/PhysRevC.55.R1621
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1997SE03      Phys.Rev. C55, R2137 (1997)

D.Seweryniak, C.N.Davids, W.B.Walters, P.J.Woods, I.Ahmad, H.Amro, D.J.Blumenthal, L.T.Brown, M.P.Carpenter, T.Davinson, S.M.Fischer, D.J.Henderson, R.V.F.Janssens, T.L.Khoo, I.Hibbert, R.J.Irvine, C.J.Lister, J.A.Mackenzie, D.Nisius, C.Parry, R.Wadsworth

In-Beam γ-Ray Spectroscopy of the Proton Emitter 69147Tm using Recoil-Decay Tagging

NUCLEAR REACTIONS 92Mo(58Ni, 2np), E=260 MeV; measured Eγ, Iγ, γp-coin. 147Tm deduced high-spin levels, J, π. Recoil-decay tagging.

doi: 10.1103/PhysRevC.55.R2137
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1997WA05      Phys.Rev. C55, 1192 (1997)

J.Wauters, J.C.Batchelder, C.R.Bingham, D.J.Blumenthal, L.T.Brown, L.F.Conticchio, C.N.Davids, T.Davinson, R.J.Irvine, D.Seweryniak, K.S.Toth, W.B.Walters, P.J.Woods, E.F.Zganjar

Fine Structure in the α Decay of 189Bi

RADIOACTIVITY 189,189mBi(α) [from 96Mo(95Mo, X), E=418 MeV]; measured T1/2, Eα, Iα. 185Tl deduced levels, possible J, π, α-decay hindrance factors.

doi: 10.1103/PhysRevC.55.1192
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1996BA29      Phys.Lett. 373B, 35 (1996)

C.R.Bain, P.J.Woods, R.Coszach, T.Davinson, P.Decrock, M.Gaelens, W.Galster, M.Huyse, R.J.Irvine, P.Leleux, E.Lienard, M.Loiselet, C.Michotte, R.Neal, A.Ninane, G.Ryckewaert, A.C.Shotter, G.Vancraeynest, J.Vervier, J.Wauters

Two Proton Emission Induced via a Resonance Reaction

NUCLEAR REACTIONS 1H(13N, X), E=45 MeV; measured pp-coincidence associated energies, momenta; deduced reaction Q related features, emission mechanism. 14O level deduced 2p-decay branch width, Γ(2He).

doi: 10.1016/0370-2693(96)00109-8
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1996BI07      Phys.Rev. C54, R20 (1996)

C.R.Bingham, K.S.Toth, J.C.Batchelder, D.J.Blumenthal, L.T.Brown, B.C.Busse, L.F.Conticchio, C.N.Davids, T.Davinson, D.J.Henderson, R.J.Irvine, D.Seweryniak, W.B.Walters, P.J.Woods, B.E.Zimmerman

Identification of 166Pt and 167Pt

RADIOACTIVITY 166,167,168Pt, 162,163,164Os(α) [from 92Mo(78Kr, X), E=357, 384 MeV]; 170Pt(α) [from 96Ru(78Kr, 2n2p), E=420 MeV]; measured T1/2, Eα; deduced α-reduced widths, Qα.

doi: 10.1103/PhysRevC.54.R20
Citations: PlumX Metrics


1996DA06      Phys.Rev.Lett. 76, 592 (1996)

C.N.Davids, P.J.Woods, H.T.Penttila, J.C.Batchelder, C.R.Bingham, D.J.Blumenthal, L.T.Brown, B.C.Busse, L.F.Conticchio, T.Davinson, D.J.Henderson, R.J.Irvine, D.Seweryniak, K.S.Toth, W.B.Walters, B.E.Zimmerman

Proton Decay of an Intruder State in 185Bi

NUCLEAR REACTIONS 95Mo(92Mo, np), E=410 MeV; measured residuals decay event spectra.

RADIOACTIVITY 185mBi(p) [from 95Mo(92Mo, np), E=410 MeV]; measured proton-decay T1/2, Ep, decay scheme, configuration.

doi: 10.1103/PhysRevLett.76.592
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