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Search: Author = P.A.Wilmarth

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1997TO12      Phys.Rev. C56, 3410 (1997)

K.S.Toth, D.C.Sousa, J.C.Batchelder, J.M.Nitschke, P.A.Wilmarth

Decay Properties ¹⁵⁴Tm and Observation of Fine Structure in Its α-Particle Spectrum

RADIOACTIVITY ^154mTm(α)(β⁺)(EC) [from ^92,94Mo(⁶⁴Zn, X), E ≈ 275 MeV]; measured Eγ, Iγ, Eα, Iα, γγ-, γα-coin; deduced isomer α-decay branching ratio. ¹⁵⁰Ho, ¹⁵⁴Er deduced levels.

doi: 10.1103/PhysRevC.56.3410
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1993TO02      Phys.Rev. C47, 1804 (1993)

K.S.Toth, D.C.Sousa, P.A.Wilmarth, J.M.Nitschke, K.S.Vierinen

Electron Capture and β⁺ Decay of ¹⁴⁷Tm

NUCLEAR REACTIONS ⁹²Mo(⁵⁸Ni, X), E=261 MeV; measured γ spectra, γ(annihilation radiation)-coin, X-ray spectra; deduced evidence for ¹⁴⁷Tm.

RADIOACTIVITY ¹⁴⁷Tm(EC), (β⁺), (p); measured γ-spectra, γ(annihilation radiation)-coin, X-ray spectra; deduced (EC+β⁺) strength. ¹⁴⁶Er levels deduced direct proton-decay branch. ¹⁴⁷Er deduced transition.

doi: 10.1103/PhysRevC.47.1804
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1993TO04      Phys.Rev. C48, 436 (1993)

K.S.Toth, D.C.Sousa, J.M.Nitschke, K.S.Vierinen, P.A.Wilmarth

Identification of the s_1/2 ¹⁴⁵Dy Ground State

RADIOACTIVITY ¹⁴⁵Dy(β⁺p), (EC) [from ⁹²Mo(⁵⁸Ni, X), E=283 MeV]; measured β-delayed Ep, Ip, β⁺p-, γp-coin, I(ce). ¹⁴⁵Tb deduced transitions Iγ, γ-multipolarity, I(ce), configuration.

doi: 10.1103/PhysRevC.48.436
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1993TO05      Phys.Rev. C48, 445 (1993)

K.S.Toth, P.A.Wilmarth, J.M.Nitschke, D.C.Sousa

Observation of ¹⁴⁶Er Electron Capture and β⁺ Decay

NUCLEAR REACTIONS ⁹²Mo(⁵⁸Ni, X), E=280 MeV; measured β-delayed (proton)γ-, (proton)(K X-ray)-coin; deduced evidence for ¹⁴⁶Er.

RADIOACTIVITY ¹⁴⁶Er(β⁺p), (EC) [from ⁹²Mo(⁵²Ni, X), E=280 MeV]; measured β-delayed pγ-, (proton)(K X-ray)-coin; deduced T_1/2.

doi: 10.1103/PhysRevC.48.445
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1991FI03      Phys.Rev. C43, 1066 (1991)

R.B.Firestone, J.Gilat, J.M.Nitschke, P.A.Wilmarth, K.S.Vierinen

Decay Studies of Neutron Deficient Nuclei Near the Z = 64 Subshell: ¹⁴²Dy, ^140,142Tb, ^140,142Gd, ^140,142Eu, ¹⁴²Sm, and ¹⁴²Pm

RADIOACTIVITY ¹⁴²Sm, ¹⁴²Pm, ^140,142Eu, ¹⁴²Gd, ^140,142Tb, ¹⁴²Dy [from ⁹²Mo(⁵⁴Fe, xnyp), E=261, 312 MeV; ⁹²Mo(⁵²Cr, xnyp), E=224, 244 MeV]; measured γγ-, γ(X-ray)-coin, (EC)-, (β⁺) branching; deduced Q(EC). ¹⁴²Dy, ^142,140Tb deduced β-delayed proton branching. ¹⁴²Pm, ¹⁴²Sm deduced β⁺-decay emission probabilities. ^142,140Gd, ^142,140Eu, ^142,140Sm, ¹⁴²Tb deduced levels, Iγ. ¹⁴²Nd deduced transition, branching intensity.

doi: 10.1103/PhysRevC.43.1066
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1991TO08      Phys.Rev. C44, 1868 (1991)

K.S.Toth, K.S.Vierinen, M.O.Kortelahti, D.C.Sousa, J.M.Nitschke, P.A.Wilmarth

Investigation of A = 155 and A = 151 Nuclides: Identification of the ¹⁵⁵Tm s_1/2 isomer and the ¹⁵⁵Yb β-decay branch

RADIOACTIVITY ¹⁵⁵Yb, ¹⁵⁵Tm(β⁺), (α); ¹⁵¹Er(β⁺); ¹⁵¹Ho(α); measured T_1/2, γγ-coin, Eγ, Iγ, Eα, Iα; deduced logft, α reduced widths. ¹⁵⁵Tm, ¹⁵⁵Er, ¹⁵¹Ho deduced levels, J, π.

doi: 10.1103/PhysRevC.44.1868
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1991TO09      Z.Phys. A340, 343 (1991)

K.S.Toth, K.S.Vierinen, J.M.Nitschke, P.A.Wilmarth, R.M.Chasteler

Alpha-Decaying Low-Spin Levels in ¹⁵⁵Lu and ¹⁵⁷Lu

RADIOACTIVITY ^155,157Lu [from ^94,96Mo(⁶⁴Zn, 2np)]; measured Eα, Iα, α-decay T_1/2. ¹⁵⁷Lu deduced level.

NUCLEAR REACTIONS ^94,96Mo(⁶⁴Zn, 2np), E not given; measured Eα, Iα.

doi: 10.1007/BF01294685
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1991TO12      Nucl.Instrum.Methods Phys.Res. B56/57, 484 (1991)

K.S.Toth, J.M.Nitschke, K.S.Vierinen, P.A.Wilmarth, R.B.Firestone, M.O.Kortelahti

Spectroscopy of Proton-Rich Nuclei in the Rare Earth Region

NUCLEAR REACTIONS ⁹⁶Ru, ^92,94,95,96Mo, ⁹³Nb(⁶⁴Zn, X), (⁵⁸Ni, X), E not given; measured residuals decay spectra; deduced evidence for neutron deficient isotopes with Z=65-71.

RADIOACTIVITY ¹⁵³Yb, ¹⁴⁹Er(EC), (β⁺); ¹⁵³Tm(α) [from ¹⁵³Yb(β⁺-EC)-decay]; analyzed decay data; deduced s_1/2, h_11/2 states role.

doi: 10.1016/0168-583X(91)96076-W
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1990AK01      Phys.Rev. C41, 1126 (1990)

Y.A.Akovali, K.S.Toth, A.L.Goodman, J.M.Nitschke, P.A.Wilmarth, D.M.Moltz, M.N.Rao, D.C.Sousa

Single-Particle States in ¹⁵¹Tm and ¹⁵¹Er: Systematics of neutron states in N = 83 Nuclei

RADIOACTIVITY ¹⁵¹Yb, ¹⁵¹Tm(β⁺) [from ⁹⁶Ru(⁵⁸Ni, X), E=360 MeV]; measured Eγ, Iγ, γ(t), γγ-coin; deduced log ft. ¹⁵¹Tm, ¹⁵¹Er deduced levels, J, π, T_1/2.

NUCLEAR STRUCTURE ¹³³Sb, ¹³⁵I, ¹³⁷Cs, ¹³⁹La, ¹⁴¹Pr, ¹⁴³Pm, ¹⁴⁵Eu, ¹⁴⁷Tb, ¹⁴⁹Ho, ¹⁵¹Tm, ¹³⁷Xe, ¹³⁹Ba, ¹⁴¹Ce, ¹⁴³Nd, ¹⁴⁵Sm, ¹⁴⁷Gd, ¹⁴⁹Dy, ¹⁵¹Er; calculated single particle state energies. Hartree-Fock-Bogoliubov method.

doi: 10.1103/PhysRevC.41.1126
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1990CH34      Phys.Rev. C42, R1171 (1990)

R.M.Chasteler, J.M.Nitschke, R.B.Firestone, K.S.Vierinen, P.A.Wilmarth

Decay of the Neutron-Rich Isotope ¹⁷¹Ho and the Identification of ¹⁶⁹Dy

RADIOACTIVITY ¹⁷¹Ho, ¹⁶⁹Dy(β^-); measured T_1/2, Eβ, βγ-coin, Iγ, Eγ; deduced log ft, Q. ¹⁷¹Er deduced levels, J, π, ICC. ¹⁶⁹Ho deduced levels, J, π.

doi: 10.1103/PhysRevC.42.R1171
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1990CH37      Phys.Rev. C42, R1796 (1990)

R.M.Chasteler, J.M.Nitschke, R.B.Firestone, K.S.Vierinen, P.A.Wilmarth

Decay Studies of the Neutron-Rich Isotopes ¹⁶⁸Dy and ^168gHo and the Identification of the New Isomer ^168mHo

RADIOACTIVITY ¹⁶⁸Dy, ¹⁶⁸Ho(β^-); ^168mHo(IT); measured T_1/2, Eβ, βγ-coin, Iγ, Eγ; deduced log ft, Q. ¹⁶⁸Ho deduced levels, J, π, ICC.

doi: 10.1103/PhysRevC.42.R1796
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1989CH05      Z.Phys. A332, 239 (1989)

R.M.Chasteler, J.M.Nitschke, R.B.Firestone, K.S.Vierinen, P.A.Wilmarth, A.A.Shihab-Eldin

Identification of the Neutron-Rich Isotope ¹⁷⁴Er

NUCLEAR REACTIONS W(¹⁷⁶Yb, X), E=8.5 MeV/nucleon; measured γ-, X-ray, β-spectra; deduced evidence for ¹⁷⁴Er, ¹⁷¹Ho.

RADIOACTIVITY ¹⁷⁴Er(β^-), ¹⁷¹Ho [from W(¹⁷⁶Yb, X), E=8.5 MeV/nucleon]; measured E(γ), I(γ), X-ray, β-spectra, (X-ray)β-coin. ¹⁷⁴Tm deduced levels, mass. ¹⁷¹Ho deduced T_1/2.

1989FI01      Phys.Rev. C39, 219 (1989)

R.B.Firestone, J.M.Nitschke, P.A.Wilmarth, K.Vierinen, J.Gilat, K.S.Toth, Y.A.Akovali

Decay of ^149g+mEr by Positron and Delayed Proton Emission and by Electron Capture

RADIOACTIVITY ^149,149mEr(β⁺p), (EC), (β⁺) [from ⁵⁸Ni(⁹⁴Mo, n2p), E=259 MeV]; measured Eγ, Iγ, β⁺p-, γγ-coin, β-delayed Ep, Ip; deduced Q(EC), proton separation energy, T_1/2. ¹⁴⁹Ho deduced levels, (EC/β⁺). ¹⁴⁸Dy levels deduced Iγ.

doi: 10.1103/PhysRevC.39.219
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1989GI06      Phys.Rev. C40, 2249 (1989)

J.Gilat, J.M.Nitschke, P.A.Wilmarth, R.B.Firestone

Decay Studies of Neutron-Deficient Nuclei Near the Z = 64 Subshell: ¹⁴¹Dy, ¹⁴¹Tb, ^141,141g+mGd, and ^141mEu

RADIOACTIVITY ¹⁴¹Dy(β⁺p); ¹⁴¹Tb(β⁺), (EC); ^141,141mGd(β⁺), (EC); ^141mEu [from ⁹²Mo(⁵⁴Fe, X), (⁵²Cr, X)]; measured γγ-, γ(X-ray)-coin. ¹⁴¹Eu deduced isomer decay branching ratios, levels, J, π. ¹⁴¹Gd deduced isomer T_1/2, decay features, levels, J, π. ¹⁴¹Dy deduced T_1/2.

doi: 10.1103/PhysRevC.40.2249
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1989KO02      Phys.Rev. C39, 636 (1989)

M.O.Kortelahti, K.S.Toth, K.S.Vierinen, J.M.Nitschke, P.A.Wilmarth, R.B.Firestone, R.M.Chasteler, A.A.Shihab-Eldin

Decay Properties of ¹⁵³Yb and ¹⁵³Tm; Excitation energies of the s_1/2 and h_11/2 proton states in ¹⁵³Tm

RADIOACTIVITY ¹⁵³Yb(β⁺) [from ⁹²Mo(⁶⁴Zn, n2p), E=267 MeV]; ¹⁵³Tm(β⁺), (α) [from ⁹²Mo(⁶⁴Zn, 3p), E=267 MeV]; measured E(γ), I(γ), γ(X-ray)-coin. ¹⁵³Yb level deduced J, π. ¹⁵³Tm deduced levels, J, π, isomer α-decay features. ¹⁵³Er deduced levels, possible J, π, configuration, γ-branching.

doi: 10.1103/PhysRevC.39.636
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1989NI02      Phys.Rev.Lett. 62, 2805 (1989)

J.M.Nitschke, P.A.Wilmarth, R.B.Firestone, P.Moller, K.S.Toth, J.Gilat

Doorway-State Formation and Structure in β-Delayed Proton Decay

RADIOACTIVITY ¹⁵¹Yb, ¹⁴⁹Er, ¹⁴⁷Dy(β⁺p); analyzed β⁺p-coin data; deduced doorway state decay mechanism.

doi: 10.1103/PhysRevLett.62.2805
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1989NI04      Z.Phys. A334, 111 (1989)

J.M.Nitschke, K.S.Toth, K.S.Vierinen, P.A.Wilmarth, R.M.Chasteler

Identification of ¹⁵³Lu β Decay

NUCLEAR REACTIONS ⁹²Mo(⁶⁴Zn, 2np), E=285 MeV; measured γ(X-ray)-, γβ⁺-, γ(particle)-coin, Eγ, Iγ.

RADIOACTIVITY ¹⁵³Lu(β⁺), (EC) [from ⁹²Mo(⁶⁴Zn, 2np), E=285 MeV]; measured γ(X-ray)-, γβ⁺-, γ(particle)-coin, Eγ, Iγ; deduced isomer T_1/2. ¹⁵³Yb deduced transitions, relative Iγ.

1989VI02      Phys.Rev. C39, 1972 (1989)

K.S.Vierinen, J.M.Nitschke, P.A.Wilmarth, R.M.Chasteler, A.A.Shihab-Eldin, R.B.Firestone, K.S.Toth, Y.A.Akovali

Identification of ¹⁴⁵Er and ¹⁴⁵Ho

RADIOACTIVITY ¹⁴⁵Er(β⁺p); ¹⁴⁵Ho(β⁺)(EC) [from ¹⁴⁵Er-decay]; measured Eγ, Iγ, γ(X-ray)-, p(X-ray)-coin; deduced T_1/2. ¹⁴⁵Dy deduced levels, isomer configuration.

doi: 10.1103/PhysRevC.39.1972
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1989VI04      Nucl.Phys. A499, 1 (1989)

K.S.Vierinen, J.M.Nitschke, P.A.Wilmarth, R.B.Firestone, J.Gilat

Decay of Neutron Deficient Eu, Sm and Pm Isotopes Near the Proton Drip Line

RADIOACTIVITY ^134,135,136Eu, ^134,135,136Sm, ^134,135,136Pm(β⁺p) [from ⁹²Mo(⁴⁶Ti, xnyp), E=192-212 MeV mass separated sources]; measured T_1/2, β-delayed Ep, Ip, Eγ; deduced log ft, γγ-, (X-ray)γ-, βγ-, p(X-ray)-, pγ-coin. ^135,136Sm, ^134,135,136Pm, ^134,135,136Nd deduced levels, J, π. n-Ge, planar Ge, plastic scintillator, surface barrier Si(Au) detectors, ΔE-E telescope, enriched targets.

doi: 10.1016/0375-9474(89)90266-2
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1988NI02      Phys.Rev. C37, 2694 (1988)

J.M.Nitschke, P.A.Wilmarth, J.Gilat, K.S.Toth, F.T.Avignone III

Delayed Proton Emission of N = 81 Odd-Odd Precursors: ¹⁴⁸Ho, ¹⁵⁰Tm, and ¹⁵²Lu

RADIOACTIVITY ¹⁴⁸Ho, ¹⁴⁸Er, ¹⁵⁰Tm, ¹⁵²Lu(β⁺p) [from ⁹⁶Ru, ⁹⁴Mo(⁵⁸Ni, xnyp)]; measured Ip, Ep, pγ-, p(X-ray)-, pβ⁺-coin; deduced T_1/2, J, π, isomers, onset of p emission. ¹⁴⁹Ho deduced level energies, proton branching ratios. Statistical model calculations.

doi: 10.1103/PhysRevC.37.2694
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1988TO03      Phys.Rev. C37, 1196 (1988)

K.S.Toth, D.C.Sousa, J.M.Nitschke, P.A.Wilmarth

Beta Decay Properties of ¹⁴⁸Er and ¹⁴⁸Ho

RADIOACTIVITY ¹⁴⁸Er(EC) [from ⁹⁴Mo(⁵⁸Ni, 2n2p), E=257 MeV]; ¹⁴⁸Ho(EC) [from ⁹⁴Mo(⁵⁸Ni, n3p), E=257 MeV]; ¹⁴⁸Dy [from ¹⁴⁸Ho-decay]; measured Eγ, Iγ, γγ-, γ(X-ray)-coin; deduced log ft, T_1/2, J, π. ¹⁴⁸Er, ¹⁴⁸Ho deduced evidence for β-delayed protons. ¹⁴⁸Ho, ¹⁴⁸Dy deduced levels, J, π.

doi: 10.1103/PhysRevC.37.1196
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1988TO13      Phys.Rev. C38, 1932 (1988)

K.S.Toth, P.A.Wilmarth, J.M.Nitschke, R.B.Firestone, K.Vierinen, M.O.Kortelahti, F.T.Avignone III

Fine Structure in ¹⁵³Tm α Decay

RADIOACTIVITY ¹⁵³Tm(α) [from ⁹²Mo(⁶⁴Zn, X), E=285 MeV]; measured Eα, Iα, Eγ, Iγ; deduced level sequence, configuration.

doi: 10.1103/PhysRevC.38.1932
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1988VI02      Phys.Rev. C38, 1509 (1988)

K.S.Vierinen, A.A.Shihab-Eldin, J.M.Nitschke, P.A.Wilmarth, R.M.Chasteler, R.B.Firestone, K.S.Toth

Beta Decay of ¹⁵⁴Lu and ¹⁵⁴Yb

RADIOACTIVITY ¹⁵⁴Lu, ¹⁵⁴Yb(β⁺), (EC) [from ^92,94Mo(⁶⁴Zn, xnyp), E=285 MeV]; measured T_1/2, β-delayed E(α), I(α), E(p), I(p), E(γ), I(γ), I(ce), γγ-, X-ray(γ)-, βγ-coin; deduced log ft. ¹⁵⁴Yb, ¹⁵⁴Tm deduced levels, J, π. n-Ge, planar Ge, plastic scintillator, surface barrier Si detectors, ΔE-E telescope, enriched targets.

doi: 10.1103/PhysRevC.38.1509
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1988WI05      Z.Phys. A329, 503 (1988)

P.A.Wilmarth, J.M.Nitschke, K.Vierinen, K.S.Toth, M.Kortelahti

Beta-Delayed Proton Decay of the N = 83 Precursor ¹⁵³Yb

RADIOACTIVITY ¹⁵³Yb(β⁺), (EC), (β⁺p) [from ⁹²Mo(⁶⁴Zn, X), E=285 MeV]; measured β-delayed Ep, Ip, pγ-, p(X-ray)-coin; deduced delayed proton decay T_1/2, β-strength function. ¹⁵²Er levels deduced p-branching ratios.

1987GR13      Phys.Rev. C35, 2117 (1987)

K.E.Gregorich, K.J.Moody, D.Lee, W.K.Kot, R.B.Welch, P.A.Wilmarth, G.T.Seaborg

Actinide Production in ¹³⁶Xe Bombardments of ²⁴⁹Cf

NUCLEAR REACTIONS ²⁴⁹Cf(¹³⁶Xe, X)²³⁴Np/²³⁶Np/²³⁸Np/²³⁹Np/²⁴⁰Np/²⁴³Pu/²⁴⁵Pu/²⁴⁶Pu/²³⁹Am/²⁴⁰Am/²⁴²Am/²⁴⁴Am/²⁴⁵Am/²⁴⁶Am/²⁴⁷Am/²⁴⁹Cm/²⁴⁴Bk/²⁴⁵Bk/²⁴⁶Bk/²⁴⁸Bk/²⁴⁹Bk/²⁵⁰Bk/²⁵¹Bk/²⁴⁵Cf/²⁴⁶Cf/²⁴⁷Cf/²⁴⁸Cf/²⁵³Cf/²⁴⁸Es/²⁴⁹Es/²⁵⁰Es/²⁵¹Es/²⁵²Es/²⁵³Es/²⁵⁴Es/²⁵⁵Es/²⁵⁶Es/²⁵⁰Fm/²⁵¹Fm/²⁵²Fm/²⁵³Fm/²⁵⁴Fm/²⁵⁶Fm/²⁵⁶Md, E=749, 813, 877 MeV; measured residue σ(E). Ge, Ge(Li) detectors, activation technique.

doi: 10.1103/PhysRevC.35.2117
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2558.

1987TO02      Phys.Rev. C35, 310 (1987)

K.S.Toth, D.C.Sousa, J.M.Nitschke, P.A.Wilmarth

Investigation of A = 152 Radioactivities with Mass-Separated Sources: Identification of ¹⁵²Lu

NUCLEAR REACTIONS ⁹⁶Ru(⁵⁸Ni, X), E=354 MeV; measured Eγ, Iγ, γγ-coin; deduced evidence for ¹⁵²Lu.

RADIOACTIVITY ¹⁵²Lu, ¹⁵²Yb, ¹⁵²Tm(EC), (IT) [from ⁹⁶Ru(⁵⁸Ni, X), E=354 MeV]; measured Eγ, Iγ, T_1/2, γγ-coin; deduced log ft.¹⁵²Yb, ¹⁵²Tm deduced levels. ¹⁵²Er deduced levels, α-branching ratio.

doi: 10.1103/PhysRevC.35.310
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1987TO05      Phys.Rev. C35, 620 (1987)

K.S.Toth, D.C.Sousa, J.M.Nitschke, P.A.Wilmarth

Decay Properties of ¹⁵⁰Tm and ¹⁵⁰Er

RADIOACTIVITY ¹⁵⁰Tm, ¹⁵⁰Er(EC), (β⁺) [from ⁹⁶Ru(⁵⁸Ni, X), E=372 MeV]; measured Eγ, Iγ, γγ-coin; deduced log ft. ¹⁵⁰Tm deduced isomer T_1/2, J, π. ¹⁵⁰Er, ¹⁵⁰Ho deduced levels, J, π. Isotope separator.

doi: 10.1103/PhysRevC.35.620
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1987TO12      Phys.Rev. C36, 826 (1987)

K.S.Toth, J.Gilat, J.M.Nitschke, P.A.Wilmarth, K.Vierinen, F.T.Avignone III

Observation of ¹⁴⁹Tm Decay to ¹⁴⁹Er Levels and β-Delayed Proton Emission

NUCLEAR REACTIONS ⁹⁴Mo(⁵⁸Ni, 2np), E=259 MeV; measured Eγ, Iγ, γγ-, γ(X-ray)-coin; deduced evidence for ¹⁴⁹Tm.

RADIOACTIVITY ¹⁴⁹Tm(β⁺), (EC) [from ⁹⁴Mo(⁵⁸Ni, p2n), E=259 MeV]; measured Eγ, Iγ, γγ-, (X-ray)γ-coin, T_1/2; deduced β^--delayed proton precursor character. ¹⁴⁹Er deduced levels, J, π, γ-branching.

doi: 10.1103/PhysRevC.36.826
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1986TO12      Phys.Lett. 178B, 150 (1986)

K.S.Toth, Y.A.Ellis-Akovali, J.M.Nitschke, P.A.Wilmarth, P.K.Lemmertz, D.M.Moltz, F.T.Avignone III

Structure in β-Delayed Proton Spectra of N = 81 Precursors

RADIOACTIVITY ¹⁵¹Yb(β⁺p) [from ⁹⁶Ru(⁵⁸Ni, n2p), E=360 MeV]; measured β-delayed Ep, Ip, β⁺p-, pγ-, p(X-ray)-coin. ¹⁵⁰Er deduced levels, J, π, proton branching. Ge, Si detectors, plastic scintillator, on-line separator.

doi: 10.1016/0370-2693(86)91486-3
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1986WI15      Z.Phys. A325, 485 (1986)

P.A.Wilmarth, J.M.Nitschke, R.B.Firestone, J.Gilat

Beta-Delayed Proton Emission in the Lanthanide Region

RADIOACTIVITY ¹²⁴Pr, ¹²⁵Ce, ^127,131Nd, ¹³¹Sm, ¹⁴⁰Tb, ¹⁴¹Gd, ^141,142,144Dy, ^144,146Ho(β⁺p); measured (K X-ray)p-coin, β-delayed (Ep); deduced ground state J, T_1/2. ¹²⁶Ce, ¹³⁰Nd deduced rotational band lowest 2⁺ state. Molybdenum, Ru targets, ³⁶Ar, ⁴⁰Ca, ^54,56Fe, ⁵⁸Ni beams.

1985TO11      Phys.Rev. C32, 342 (1985)

K.S.Toth, Y.A.Ellis-Akovali, F.T.Avignone III, R.S.Moore, D.M.Moltz, J.M.Nitschke, P.A.Wilmarth, P.K.Lemmertz, D.C.Sousa, A.L.Goodman

Single-Particle States in ¹⁴⁹Er and ¹⁴⁹Ho, and the Effect of the Z = 64 Closure

NUCLEAR STRUCTURE ¹³³Sb, ¹³⁵I, ¹³⁷Cs, ¹³⁹La, ¹⁴¹Pr, ¹⁴³Pm, ¹⁴⁵Eu, ¹⁴⁷Tb, ¹⁴⁹Ho, ¹³¹Sn, ¹³³Te, ¹³⁷Ba, ¹³⁹Ce, ¹⁴¹Nd, ¹⁴³Sm, ¹⁴⁵Gd, ¹⁴⁷Dy, ¹⁴⁹Er; calculated single particle states. Hartree-Fock method.

RADIOACTIVITY ¹⁴⁹Er(β⁺), (EC), ^149mEr [from ¹⁴⁴Sm(¹²C, 7n), E=135 MeV]; measured Eγ, Iγ, γγ-coin, T_1/2, β-delayed Ep, Ip. ¹⁴⁹Er deduced levels, J, π, ICC. ¹⁴⁹Ho deduced levels, J, π. Mass separation.

doi: 10.1103/PhysRevC.32.342
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1985WI07      Z.Phys. A321, 179 (1985)

P.A.Wilmarth, J.M.Nitschke, P.K.Lemmertz, R.B.Firestone

Beta-Delayed Proton Precursors with 59 ≤ Z ≤ 62

NUCLEAR REACTIONS ⁹²Mo(⁴⁰Ca, np), (⁴⁰Ca, n2p), (⁴⁰Ca, n3p), E=170 MeV; ⁹⁶Ru(⁴⁰Ca, n3p), (⁴⁰Ca, n2p), E=175 MeV; measured Eγ, Iγ, E X-ray, I X-ray, p(X-ray); deduced β-delayed proton emitters ¹²⁸Pr, ^130,132Pm, ¹²⁹Nd, ¹³³Sm.

RADIOACTIVITY ¹²⁸Pr, ^130,132Pm, ¹²⁹Nd, ¹³³Sm(β⁺p) [from ⁹²Mo, ⁹⁶Ru(⁴⁰Ca, xnyp), E=170, 175 MeV]; measured β-delayed p(X-ray), Eγ, Iγ, E X-ray, I X-ray; deduced T_1/2, average Ep, E(K X-ray), Eγ.

doi: 10.1007/BF01411963
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1984NI03      Z.Phys. A316, 249 (1984)

J.M.Nitschke, P.A.Wilmarth, P.K.Lemmertz, W.-D.Zeitz, J.A.Honkanen

Beta-Delayed Proton Emission Observed in New Lanthanide Isotopes

RADIOACTIVITY ^143,141Dy(β⁺p) [from ⁹²Mo(⁵⁶Fe, αn), (⁵⁴Fe, αn), E=275, 274 MeV]; ¹⁴¹Gd(β⁺p) [from ⁹²Mo(⁵⁴Fe, n4p), E=274 MeV]; ¹²³Ce(β⁺p) [from ⁹²Mo(³⁶Ar, nα), E=196 MeV]; ¹²²La(β⁺p) [from ⁹²Mo(³⁶Ar, npα), E=205 MeV]; ¹²⁰La(β⁺p) [from ⁵⁸Ni(⁶⁴Zn, np), E=253 MeV]; measured β-delayed Ep, Ip, γp-, X-ray p-coin; deduced T_1/2.

doi: 10.1007/BF01412274
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