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NSR database version of April 27, 2024.

Search: Author = K.Vierinen

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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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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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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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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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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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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.

1987NI14      Nucl.Phys. A475, 207 (1987)

K.Nilson, L.Spanier, B.Erlandsson, K.Vierinen, K.Eskola, K.Savolainen

Studies of the Gamma-Strength Function and Low Energy Levels in ⁶⁵Ga using the (p, γ) Average Resonance Method

NUCLEAR REACTIONS ⁶⁴Zn(p, γ), E=1.3-4.3 MeV; measured E(γ), I(γ). ⁶⁵Ga deduced levels, γ-ray strength function, J, π. Enriched target, Ge(Li) detector, NaI(Tl) detector, pair spectrometer.

doi: 10.1016/0375-9474(87)90162-X
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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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1987VI01      Nucl.Phys. A463, 605 (1987)

K.Vierinen

High Resolution Gamow-Teller Strength Measurement via β-Decay of ⁶⁵Ge

NUCLEAR REACTIONS, ICPND ⁶⁴Zn(p, γ), E=1.1-2.1 MeV; measured gamma yield, σ(E), Eγ, Iγ. ⁶⁵Ga deduced resonance decays, proton binding energy. Enriched target, Ge(Li), NaI(Tl) detectors.

RADIOACTIVITY ⁶⁵Ge(β⁺p) [from ⁶⁴Zn(³He, 2n), E=25 MeV]; measured β-delayed Ep, Ip, Eγ; deduced log ft, β-strength function. ⁶⁵Ga deduced levels, J, π. Ge(Li), surface barrier Si(Au) detectors.

doi: 10.1016/0375-9474(87)90633-6
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1986AR12      Nucl.Instrum.Methods Phys.Res. A247, 431 (1986)

J.Arje, J.Aysto, H.Hyvonen, P.Taskinen, V.Koponen, J.Honkanen, K.Valli, A.Hautojarvi, K.Vierinen

The Ion Guide Isotope Separator On-Line, IGISOL

RADIOACTIVITY ^207mBi [from Pb(p, xn), E=20 MeV]; measured T_1/2. On-line separation.

NUCLEAR REACTIONS ¹¹B(d, p), E=6 MeV; ^106,110Cd, ⁵⁴Fe, ⁵⁸Ni, ⁶⁴Zn(p, n), E=16 MeV; ⁸⁸Sr(p, n)⁸⁸Y/^88mY, E=16 MeV; ⁹⁰Zr(p, n)⁹⁰Nb/^90mNb, E=16 MeV; ⁹²Mo, ²⁷Al, ⁴⁶Ti, ⁵⁰Cr(p, n), E=15.4 MeV; ¹⁰⁸Cd(p, n), E=14 MeV; ¹⁸¹Ta, ²⁰⁴Pb(p, 2n), Hg(p, xn)²⁰¹Tl/^201mTl/²⁰²Tl/^202mTl/Pb(p, xn)²⁰⁶Bi/^206mBi/²⁰⁷Pb/^207mPb/²⁰⁷Bi/^207mBi/²⁰⁸Bi/^208mBi, E=20 MeV; ²⁷Al(p, dn), E=16 MeV; ⁵⁰Cr(p, np), E=20 MeV; ²⁴Mg, ⁴⁶Ti, ⁵⁰Cr, ⁵⁴Fe(³He, 2n), E=27 MeV; ⁴⁰Ca(³He, α), (³He, nα), (³He, d), (³He, n), E=15 MeV; ²⁷Al(α, n), E=20 MeV; ⁴⁰Ca(α, p)⁴³Sc/^43mSc, E=20 MeV; measured residual yields. Activation technique.

doi: 10.1016/0168-9002(86)90404-3
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1985AR01      Phys.Rev.Lett. 54, 99 (1985)

J.Arje, J.Aysto, H.Hyvonen, P.Taskinen, V.Koponen, J.Honkanen, A.Hautojarvi, K.Vierinen

Submillisecond On-Line Mass Separation of Nonvolatile Radioactive Elements: An application of charge exchange and thermalization processes of primary recoil ions in helium

NUCLEAR REACTIONS ¹¹B(d, p), E=5 MeV; measured residual production yield. ⁹⁰Zr(p, n), ¹⁸¹Ta(p, 2n), ⁴⁰Ca(α, p), E=20 MeV; Pb(p, X)²⁰⁷Bi/^207mBi, E=20 MeV; measured residual isomer production yield. Helium flow recoil ion transportation, activation technique.

doi: 10.1103/PhysRevLett.54.99
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1984AY01      Phys.Lett. 138B, 369 (1984)

J.Aysto, J.Arje, V.Koponen, P.Taskinen, H.Hyvonen, A.Hautojarvi, K.Vierinen

Beta Decay of T(z) = -1/2 Nuclides ⁵¹Fe and ⁵⁵Ni: A new approach to on-line isotope separation

RADIOACTIVITY ⁵¹Fe, ⁵⁵Ni(β⁺) [from ⁵⁰Cr, ⁵⁴Fe(³He, 2n), E=27 MeV]; measured Eγ, Iγ, Eβ, Iβ, T_1/2; deduced Qβ, log ft, Gamow-Teller matrix elements. ⁵¹Mn level deduced Iβ, allowed decay. Shell model comparison.

doi: 10.1016/0370-2693(84)91919-1
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1983AY01      Nucl.Phys. A404, 1 (1983)

J.Aysto, J.Honkanen, W.Trzaska, K.Eskola, K.Vierinen, S.Messelt

Features of the β-Decay of ^93mRu to Proton Emitting States in ⁹³Tc

RADIOACTIVITY ^93mRu(β⁺p) [from ⁹²Mo(³He, 2n), E=24 MeV]; measured β-delayed Ep, Ip, Eγ, Iγ, T_1/2, β-endpoint energy; deduced Q(EC), log ft, β-strength function. ⁹³Tc deduced proton decaying level J, π, level density.

NUCLEAR REACTIONS ⁹²Mo(p, γ), E=2.2-2.7 MeV; measured thick target γ-yield, Eγ, Iγ, proton binding energy.

doi: 10.1016/0375-9474(83)90410-4
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1983AY02      Phys.Scr. T5, 193 (1983)

J.Aysto, P.Taskinen, K.Eskola, K.Vierinen, S.Messelt

Studies of Weak Beta-Delayed Protons Emitted in the Decay of Odd-Z, T(z) = -(3/2) Nuclei

RADIOACTIVITY ²⁷P(β⁺p) [from ²⁸Si(p, 2n), E=34 MeV; ²⁷Al(³He, 3n), E=44 MeV]; ³¹Cl(β⁺p) [from ³²S(p, 2n), E=34 MeV]; measured β-delayed Ep, Ip. ²⁷P deduced total delayed proton branching. ³⁷Cl deduced T_1/2, total delayed proton branching.

1982AY01      Phys.Lett. 110B, 437 (1982)

J.Aysto, J.Honkanen, K.Vierinen, A.Hautojarvi, K.Eskola, S.Messelt

Observation of Beta-Delayed Protons in the Decay of ³¹Cl

RADIOACTIVITY ³¹Cl [from ³²S(p, 2n), E=33 MeV]; measured β-delayed Ep, Ip, Eα, Iα; deduced T_1/2, log ft. ³¹S deduced level, possible J, π. Helium jet system, ZnS targets.

doi: 10.1016/0370-2693(82)91033-4
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1982HO09      Nucl.Phys. A380, 410 (1982)

J.Honkanen, J.Aysto, M.Kortelahti, K.Eskola, K.Vierinen, A.Hautojarvi

Beta Decay of ⁴⁰Sc to Proton and Alpha-Particle Unbound States in ⁴⁰Ca

RADIOACTIVITY ⁴⁰Sc [from ⁴⁰Ca(p, n)]; measured β-delayed E(p), Eα, I(p), Iα, T_1/2; deduced log ft, β-strength function. ⁴⁰Ca deduced levels, Γα/Γp, J, π, T.

doi: 10.1016/0375-9474(82)90567-X
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1981HO19      Nucl.Phys. A366, 109 (1981)

J.Honkanen, M.Kortelahti, K.Eskola, K.Vierinen

Beta Decay and Delayed Proton Emission of a New Nuclide ⁵⁹Zn

RADIOACTIVITY ⁵⁹Zn [from ⁵⁸Ni(³He, 2n)]; measured Eγ, Iγ, β-delayed Ep, Ip, T_1/2; deduced log ft, β-strength function. ⁵⁹Cu deduced levels, J, π.

doi: 10.1016/0375-9474(81)90490-5
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1980ES01      Nucl.Phys. A341, 365 (1980)

K.Eskola, M.Riihonen, K.Vierinen, J.Honkanen, M.Kortelahti, K.Valli

Beta-Delayed Particle Emission of ³⁶K

RADIOACTIVITY ³⁶K [from ³⁶Ar(p, n)]; measured β-delayed Ep, Eα, Ip, Iα; deduced maximum log ft. ³⁶Ar deduced levels, Γγ, Γp, Γα, J, π. Implanted ³⁶Ar target.

doi: 10.1016/0375-9474(80)90370-X
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1979HO27      Nucl.Phys. A330, 429 (1979)

J.Honkanen, M.Kortelahti, K.Valli, K.Eskola, A.Hautojarvi, K.Vierinen

Delayed Particle Emission Following the β⁺ Decay of ²⁸P and ³²Cl

RADIOACTIVITY ²⁸P [from ²⁸Si(p, n)];³²Cl [from ³²S(p, n)]; measured β-delayed Ep, Eα, Ip, Iα; deduced maximum log ft. ²⁸Si, ³²S deduced levels, Γα/Γp, J, π. Natural targets.

doi: 10.1016/0375-9474(79)90064-2
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Note: The following list of authors and aliases matches the search parameter K.Vierinen: , K.S.VIERINEN