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Search: Author = A.Pakkanen

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1995JU02      Phys.Rev. C51, 1699 (1995)

S.Juutinen, P.Simecek, P.Ahonen, M.Carpenter, C.Fahlander, J.Gascon, R.Julin, A.Lampinen, T.Lonnroth, J.Nyberg, A.Pakkanen, M.Piiparinen, K.Schiffer, G.Sletten, S.Tormanen, A.Virtanen

Shape Coexistence in the Transitional ¹³³Ba Nucleus

NUCLEAR REACTIONS ¹²⁴Sn(¹³C, 4n), E=48.4, 65.5 MeV; measured Eγ, Iγ, DCO ratios. ¹³³Ba deduced high-spin levels, J, π, shape features, band structure. Total Ronthian surface calculations.

doi: 10.1103/PhysRevC.51.1699
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1995JU09      Phys.Rev. C52, 2946 (1995)

S.Juutinen, S.Tormanen, P.Ahonen, M.Carpenter, C.Fahlander, J.Gascon, R.Julin, A.Lampinen, T.Lonnroth, J.Nyberg, A.Pakkanen, M.Piiparinen, K.Schiffer, P.Simecek, G.Sletten, A.Virtanen

Band Structures in ¹³²Ba

NUCLEAR REACTIONS ¹²⁴Sn(¹³C, 5n), E=65.5 MeV; measured Eγ, Iγ, Iγγ(θ), γγ-coin. ¹³²Ba deduced levels, J, π, band structure. Array of Ge detectors.

doi: 10.1103/PhysRevC.52.2946
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1993PI16      Nucl.Phys. A565, 671 (1993)

M.Piiparinen, R.Julin, S.Juutinen, A.Virtanen, P.Ahonen, C.Fahlander, J.Hattula, A.Lampinen, T.Lonnroth, A.Maj, S.Mitarai, D.Muller, J.Nyberg, A.Pakkanen, M.Sugawara, I.Thorslund, S.Tormanen

Lifetimes of Yrast States in ¹¹⁰Cd

NUCLEAR REACTIONS ¹⁰⁰Mo(¹³C, 3n), E=44 MeV; measured Eγ, Iγ, γγ-coin. ¹¹⁰Cd levels deduced B(E2) values, T_1/2. Enriched targets, array of Compton-suppressed Ge detectors, 4π BaF₂ ball, plunger.

doi: 10.1016/0375-9474(93)90052-Y
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1991JU02      Nucl.Phys. A526, 346 (1991)

S.Juutinen, P.Ahonen, J.Hattula, R.Julin, A.Pakkanen, A.Virtanen, J.Simpson, R.Chapman, D.Clarke, F.Khazaie, J.Lisle, J.N.Mo

High-j Bands in ¹⁷³Ir

NUCLEAR REACTIONS ¹⁴⁴Sm(³²S, 2np), E=160-170 MeV; measured Eγ, Iγ, γ yield, γ(θ), γγ-coin. ¹¹⁸Sn(⁵⁸Ni, 2np), E=270 MeV; measured (recoil)γ-coin. ¹⁷³Ir deduced levels, J, π, γ-branching, B(λ) ratios. Enriched targets, array of Compton-suppressed Ge detectors. Experimental routhians and aligned angular momenta, single particle levels, total routhian surface calculations, Woods-Saxon potential.

doi: 10.1016/0375-9474(91)90290-M
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1990JU01      Z.Phys. A336, 475 (1990)

S.Juutinen, R.Julin, P.Ahonen, C.Fahlander, J.Hattula, J.Kumpulainen, A.Lampinen, T.Lonnroth, D.Muller, J.Nyberg, A.Pakkanen, M.Piiparinen, I.Thorslund, S.Tormanen, A.Virtanen

High-Spin States in ¹¹⁰Cd

NUCLEAR REACTIONS ⁹⁶Zr(¹⁸O, 4n), E=65, 73 MeV; measured γγ-coin. ¹¹⁰Cd deduced levels, J, π, band structure.

1990LO17      Z.Phys. A337, 11 (1990)

T.Lonnroth, P.Ahonen, R.Julin, S.Juutinen, A.Lampinen, A.Pakkanen, S.Tormanen, W.Trzaska, A.Virtanen

Properties of the (13/2)⁺ Isomeric Decay in ²⁰¹Hg

NUCLEAR REACTIONS ¹⁹⁸Pt(α, n), E=18.1 MeV; measured Eγ, Iγ, γ(t), I(ce). ²⁰¹Hg deduced levels, J, π, isomer decay, ICC, B(λ).

1990TI08      Phys.Rev. C42, 2431 (1990)

P.Tikkanen, J.Keinonen, A.Lampinen, R.Julin, A.Pakkanen, P.Ahonen, J.Hattula, S.Juutinen, S.Tormanen, P.J.Nolan, P.von Brentano, A.Dewald, A.Gelberg, G.Siems, R.Wirowski

Lifetimes of Yrast J(π) = 16⁺-26⁺ States in ¹³⁰Ce

NUCLEAR REACTIONS ⁹⁸Mo(³⁶S, 4n), E=143-150 MeV; measured DSA, γ-lineshapes. ¹³⁰Ce levels deduced T_1/2. Enriched targets.

doi: 10.1103/PhysRevC.42.2431
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1989SI11      Z.Phys. A333, 323 (1989)

P.Simecek, R.Julin, S.Juutinen, M.Kortelahti, J.Kumpulainen, D.Nosek, A.Pakkanen, I.Prochazka

In-Beam Study of Low-Lying Levels in the ¹⁴⁹Sm Nucleus

NUCLEAR REACTIONS ¹⁴⁶Nd(α, n), E=18.5 MeV; measured γγ-coin, I(ce), γ(θ), Iγ, Eγ. ¹⁴⁹Sm deduced levels, J, π, B(λ), δ, ICC. Quasiparticle-rotor model interpretation.

1988AY02      Nucl.Phys. A480, 104 (1988)

J.Aysto, C.N.Davids, J.Hattula, J.Honkanen, K.Honkanen, P.Jauho, R.Julin, S.Juutinen, J.Kumpulainen, T.Lonnroth, A.Pakkanen, A.Passoja, H.Penttila, P.Taskinen, E.Verho, A.Virtanen, M.Yoshii

Levels in ¹¹⁰Pd, ¹¹²Pd, ¹¹⁴Pd and ¹¹⁶Pd from the Beta Decays of the On-Line Mass Separated Rh Isotopes

RADIOACTIVITY ^{110,112,114,116}Rh(β^-) [from ²³⁸U(p, F), E=20 MeV]; measured T_1/2(β^-), Q(β^-), I(γ), (β^-)(ce)-, β^-γ-, γγ-coin. ^{110,112,114,116}Pd deduced levels, J, π, level systematics. Ge(Li), Ge, Si-Li, plastic detectors.

doi: 10.1016/0375-9474(88)90387-9
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1987HA03      J.Phys.(London) G13, 57 (1987)

J.Hattula, S.Juutinen, M.Jaaskelainen, T.Lonnroth, A.Pakkanen, M.Piiparinen, G.Sletten

Neutron and Proton Bands in ¹²²Xe at High Spins

NUCLEAR REACTIONS ¹¹⁰Pd(¹⁶O, 4n), (¹⁶O, 3n), (¹⁸O, 4n), ¹⁰⁹Ag(¹⁸O, 4n), E=65-82 MeV; measured Eγ, Iγ, γγ-coin. ¹²²Te(³He, 3n), E=27 MeV; measured σ(θ). ¹²²Xe deduced levels, band structure, ICC, Iγ. ^123,124Xe, ¹²³Cs deduced levels, J, π, yrast sequence, quasiparticle band alignments.

doi: 10.1088/0305-4616/13/1/009
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1985AZ02      Nucl.Phys. A439, 573 (1985)

F.Azgui, H.Emling, E.Grosse, C.Michel, R.S.Simon, W.Spreng, H.J.Wollersheim, T.L.Khoo, P.Chowdhury, D.Frekers, R.V.F.Janssens, A.Pakkanen, P.J.Daly, M.Kortelahti, D.Schwalm, G.Seiler-Clark

Feeding Times of High-Spin States in ^152,154Dy: Probes of nuclear structure above the yrast line

NUCLEAR REACTIONS ²⁵Mg(¹³⁴Xe, 5n), (¹³²Xe, 5n), E=686 MeV; ¹²⁴Sn(³⁴S, 4n), E=146 MeV; ¹²²Sn(³⁴S, 4n), E=160 MeV; measured Eγ, Iγ, recoil distance. ^152,154Dy deduced levels, T_1/2, feeding times, quadrupole transition probabilities. Ge detectors, NaI(Tl) arrays, sum spectrometer, plunger, pulsed, beam.

doi: 10.1016/0375-9474(85)90426-9
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1985KO18      Z.Phys. A321, 417 (1985)

M.Kortelahti, R.Julin, J.Hattula, A.Pakkanen, M.Piiparinen

Non-Yrast Level Structure of ¹³⁵Pr

NUCLEAR REACTIONS ¹³⁶Ce(p, 2n), E=19.9 MeV; measured σ(Eγ), Eγ, Iγ, γγ-coin, γ(t), γ(θ), I(ce). ¹³⁵Pr deduced levels, J, π, T_1/2, ICC, γ-multipolarity, deformation. Triaxial rotor-plus-particle model.

doi: 10.1007/BF01411973
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1985TI09      Soc.Sci.Fenn., Comment.Phys.-Math. 73, 4 (1985)

P.Tikkanen, J.Keinonen, A.Anttila, A.Pakkanen

Analogue Structure of ²⁷Si-²⁷Al; Transition strengths in ²⁷Si

NUCLEAR REACTIONS ²⁷Al(p, n), E=9-14 MeV; measured nγ-coin, DSA. ²⁷Si levels deduced T_1/2, transition strength, γ-multipolarity, δ.

1984CH11      Phys.Rev. C29, 2153 (1984)

Y.H.Chung, P.J.Daly, H.Helppi, R.Broda, Z.W.Grabowski, M.Kortelahti, J.McNeill, A.Pakkanen, P.Chowdhury, R.V.F.Janssens, T.L.Khoo, J.Blomqvist

Four-Valence-Proton Yrast States in ¹⁵⁰₆₈Er₈₂

NUCLEAR REACTIONS ^92,94Zr, ⁹³Nb, ^92,94,95Mo(⁵⁸Ni, xnyp), (⁶⁰Ni, xnyp), ⁹³Nb(⁶⁰Ni, 2np), ⁹⁵Mo(⁵⁸Ni, n2p), E=225-255 MeV; measured Eγ, Iγ, γγ(t), σ(Eγ, E), γγ-coin, X-rayγ-coin. ¹⁵⁰Er deduced levels, T_1/2, yrast sequence, isomers, ICC, γ-branching, J, π, B(E2), γ-multipolarity. Shell model.

doi: 10.1103/PhysRevC.29.2153
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1984KO17      ATOMKI Kozlem. 26, 33 (1984)

J.Kownacki, J.Jastrzebski, P.Koczon, W.Skulski, J.Wrzesinski, J.Sieniawski, J.Styczen, W.Walus, A.Celler, E.Liukkonen, A.Lukko, A.Pakkanen, Th.Lindblad, S.Elfstrom

Multipolarity Excitations in the Single Closed Shell Nucleus ¹⁴⁰₅₈Ce₈₂

NUCLEAR REACTIONS ¹³⁸Ba(α, 2n), E not given; measured I(ce), γγ-coin. ¹⁴⁰Ce deduced levels, J, π, T_1/2, ICC, configuration. Intermediate image plus Si-Li electron spectrometer.

1984PA14      ATOMKI Kozlem. 26, 40 (1984)

A.Pakkanen, T.Komppa, R.Komu, M.Kortelahti, M.Piiparinen

Medium and Low-Spin States in N = 82 ± 1 Nuclei near ¹⁴⁶Gd

NUCLEAR REACTIONS Nd, Sm(³He, xn), (α, n), E not given; measured γ-spectra. ¹⁴³Sm, ^145,147Gd deduced levels, J, π, configuration. Shell model comparison.

1983HA30      Phys.Rev. C28, 1860 (1983)

J.Hattula, S.Juutinen, H.Helppi, A.Pakkanen, M.Piiparinen, S.Elfstrom, Th.Lindblad

Band Crossings in ⁸⁶Zr

NUCLEAR REACTIONS Sr(³He, xnγ), E=27 MeV; Sr(α, xnγ), E=55 MeV; measured Eγ, Iγ, γγ(t), γ(θ). ⁸⁶Zr deduced levels, T_1/2, band structure, yrast line backbending characteristics.

doi: 10.1103/PhysRevC.28.1860
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1983KH03      Phys.Scr. T5, 16 (1983)

T.L.Khoo, P.Chowdhury, H.Emling, D.Frekers, R.V.F.Janssens, W.Kuhn, A.Pakkanen, Y.H.Chung, P.J.Daly, Z.W.Grabowski, H.Helppi, M.Kortelahti, S.Bjornholm, J.Borggreen, J.Pedersen, G.Sletten

Nuclear Shape Transitions and Some Properties of Aligned-Particle Configurations at High Spin

NUCLEAR STRUCTURE ^{148,152,156,160}Dy, ¹⁴⁷Gd; analyzed high-spin state, effective quadrupole moment, feeding times data; deduced shape dependence on spin, neutron number.

NUCLEAR REACTIONS ¹²²Sn(³⁰Si, 5n), E not given; measured γγ-coin. ¹⁴⁷Gd deduced levels, γ-branching.

doi: 10.1088/0031-8949/1983/T5/003
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1983KO13      Phys.Scr. 27, 166 (1983)

M.Kortelahti, T.Komppa, M.Piiparinen, A.Pakkanen, R.Komu

Medium-Spin Levels in ¹³⁷Ce and the Prolate-Oblate Shape Transition in Ce Nuclei

NUCLEAR REACTIONS ¹³⁷Ba(³He, 3n), E=27 MeV; measured Eγ, Iγ, I(ce), γγ-coin, γ(θ), σ(Eγ). ¹³⁷Ce deduced levels, J, π, ICC, band structure, γ-branching, configuration, γ-multipolarity.

doi: 10.1088/0031-8949/27/3/003
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1983KO42      Z.Phys. A314, 33 (1983)

T.Komppa, R.Komu, M.Kortelahti, J.Muhonen, A.Pakkanen, M.Piiparinen, I.Prochazka, J.Blomqvist

Medium-Spin Levels in the N = 83 Nucleus ¹⁴⁷Gd

NUCLEAR REACTIONS, ICPND ¹⁴⁷Sm(³He, 3n), E=22 MeV; ¹⁴⁴Sm(α, n), E=17.5 MeV; measured Eγ, Iγ, γ(θ), γγ-coin, I(ce), σ(Eγ, E), γγ(t), γ yield vs E. ¹⁴⁷Gd deduced levels, γ-branching, J, π, ICC, γ-multipolarity, configuration. Shell model.

NUCLEAR STRUCTURE ¹⁴⁷Gd; calculated levels. Shell model.

doi: 10.1007/BF01411826
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1983KO45      Phys.Lett. 131B, 305 (1983)

M.Kortelahti, R.Broda, Y.H.Chung, P.J.Daly, H.Helppi, J.Mcneill, A.Pakkanen, P.Chowdhury, R.V.F.Janssens, T.L.Khoo, W.Kuhn

Level Structure of ¹⁵³Dy and the Competition between Collective and Few-Particle Excitation Modes in Dy Nuclei

NUCLEAR REACTIONS ¹²⁴Sn(³⁴S, 5n), E=145-165 MeV; measured γ(θ), σ(Eγ, E), γγ-coin, γγ(t). ¹⁵³Dy deduced levels, γ-branching, isomer configuration, J, π, B(E2), shape, collective, few particle excitation mode competitions.

doi: 10.1016/0370-2693(83)90504-X
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1982HE08      Phys.Lett. 115B, 11 (1982)

H.Helppi, Y.H.Chung, P.J.Daly, S.R.Faber, A.Pakkanen, I.Ahmad, P.Chowdhury, Z.W.Grabowski, T.L.Khoo, R.D.Lawson, J.Blomqvist

Yrast (πh_11/2)(n) Excitations in Proton-Rich N = 82 Nuclei

NUCLEAR REACTIONS ^92,94Zr, ⁹³Nb, ^92,94,95Mo(⁵⁸Ni, X), (⁶²Ni, X), E=225-285 MeV; measured σ(Eγ), γγ-, γ(X-ray)-coin. ¹⁵⁰Er, ¹⁵¹Tm deduced levels, γ-branching, J, π, isomer T_1/2, B(λ), configuration.

doi: 10.1016/0370-2693(82)90504-4
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1982KO05      Nucl.Phys. A376, 1 (1982)

M.Kortelahti, A.Pakkanen, M.Piiparinen, T.Komppa, R.Komu

Medium-Spin Levels and a 360 ns Iπ = 19/2^- Isomer in the N = 80 Nucleus ¹³⁷La

NUCLEAR REACTIONS ¹³⁸Ba(p, 2n), E=17.1-20.3 MeV; measured Eγ, Iγ(E), Iγ(θ), I(ce), γγ-coin, pγ(t). ¹³⁷La deduced levels, J, π, T_1/2, ICC, B(λ). Enriched targets.

RADIOACTIVITY ^137mCe [from ¹³⁷Ba(³He, 3n)]; measured Eγ, Iγ, γγ-coin. ¹³⁷La deduced levels.

doi: 10.1016/0375-9474(82)90529-2
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1982PA04      Nucl.Phys. A373, 237 (1982)

A.Pakkanen, J.Muhonen, M.Piiparinen, J.Blomqvist

Medium-Spin Levels and the Character of the 20.4 ns 13/2⁺ Isomer in ¹⁴⁵Gd

NUCLEAR REACTIONS ¹⁴⁴Sm(³He, 2n), E=12.6-27 MeV; measured Eγ, Iγ(E), Iγ(θ), I(ce), γγ-coin, ³Heγ(t). ¹⁴⁵Gd deduced levels, J, π, T_1/2, ICC, B(λ). Enriched targets.

doi: 10.1016/0375-9474(82)90149-X
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1982PA10      Phys.Rev.Lett. 48, 1530 (1982)

A.Pakkanen, Y.H.Chung, P.J.Daly, S.R.Faber, H.Helppi, J.Wilson, P.Chowdhury, T.L.Khoo, I.Ahmad, J.Borggreen, Z.W.Grabowski, D.C.Radford

Transition from Collective to Aligned-Particle Configurations at High Spin in ¹⁵⁴Dy

NUCLEAR REACTIONS ¹²⁴Sn(³⁴S, 4n), E=145-165 MeV; measured γγ-coin, γ(θ), σ(Eγ), recoil. ¹⁵⁴Dy deduced levels, J, π, γ-branching, T_1/2, yrast level intrinsic quadrupole moments, backbending, shape change.

doi: 10.1103/PhysRevLett.48.1530
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1982PI07      Z.Phys. A309, 87 (1982)

M.Piiparinen, T.Komppa, R.Komu, A.Pakkanen, J.Blomqvist

Particle Octupole Multiplet in ¹⁴⁷Gd

NUCLEAR REACTIONS ¹⁴⁷Sm(³He, 3n), E=20-27 MeV; ¹⁴⁷Sm(α, n), E=16-20 MeV; measured σ(Eγ), γγ-coin, I(ce), γ(θ), γγ(t). ¹⁴⁷Gd deduced levels, J, π, γ-branching, γ-multipolarity.

doi: 10.1007/BF01420156
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1981KO16      Phys.Scr. 24, 10 (1981)

M.Kortelahti, M.Piiparinen, A.Pakkanen, T.Komppa, R.Komu

Medium-Spin States in the N = 82 Nuclei ¹⁴¹Pr and ¹⁴³Pm

NUCLEAR REACTIONS ¹⁴²Ce, ¹⁴⁴Nd(p, 2n), E=15.8-20.4 MeV; ¹⁴⁵Nd(p, 3n), E=20.4 MeV; measured Eγ, Iγ, pγ(t), γ(θ), γγ-coin, I(ce). ¹⁴¹Pr, ¹⁴³Pm deduced levels, J, π, γ-multipolarity, ICC.

doi: 10.1088/0031-8949/24/1A/002
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1981PI10      Z.Phys. A301, 231 (1981)

M.Piiparinen, R.Broda, Y.Nagai, P.Kleinheinz, A.Pakkanen

The 235 ns 9⁺ Isomer in ¹⁴⁸₆₃Eu₈₅

NUCLEAR REACTIONS ¹⁴⁹Sm(p, 2n), E=17 MeV; ¹⁵⁰Sm(p, 3n), E=31 MeV; measured Eγ, Iγ, γ(θ), γγ-coin, I(ce). ¹⁴⁸Eu deduced levels, isomer T_1/2, J, π, ICC, γ-multipolarity, B(M2), configurations.

doi: 10.1007/BF01416298
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1981WI08      Phys.Lett. 103B, 413 (1981)

J.Wilson, Y.H.Chung, S.R.Faber, A.Pakkanen, P.J.Daly, I.Ahmad, P.Chowdhury, T.L.Khoo, R.D.Lawson, R.K.Smither

Shell Model Yrast States of the N = 83 Nucleus ¹⁵⁰Ho

NUCLEAR REACTIONS ¹²²Te(³²S, 3np), ¹²¹Sb(³²S, 3n), E=155-180 MeV; measured γγ-coin, γγ(t), γ(t). ¹⁵⁰Ho deduced levels, J, π, T_1/2, yrast sequence, γ-branching, B(E2), configuration. Shell model interpretation.

doi: 10.1016/0370-2693(81)90072-1
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1980KO16      Nucl.Phys. A342, 421 (1980)

M.Kortelahti, M.Piiparinen, A.Pakkanen, T.Komppa, R.Komu, S.Brant, I.J.Udovicic, V.Paar

In-Beam Study of ¹⁴⁵Pm and the Cluster-Vibration Model for Odd Pm Nuclei

NUCLEAR REACTIONS ¹⁴⁶Nd(p, 2n), E=14.9-20.2 MeV; measured Eγ, Iγ(E), Iγ(θ), I(ce), γγ-coin, pγ(t). ¹⁴⁵Pm deduced levels, J, π, T_1/2, ICC, δ(E2/M1). Enriched targets.

doi: 10.1016/0375-9474(80)90554-0
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1980PI03      Nucl.Phys. A342, 53 (1980)

M.Piiparinen, M.Kortelahti, A.Pakkanen, T.Komppa, R.Komu

Medium-Spin States in the N = 80 Nuclei ¹³⁹Pr and ¹⁴¹Pm

NUCLEAR REACTIONS ¹⁴²Nd, ¹⁴⁰Ce(p, 2nγ), ¹⁴²Nd(p, 2n), E=15-20 MeV; ¹⁴¹Pr, ¹³⁹La(³He, 3nγ), ¹³⁹La, ¹⁴¹Pr(³He, 3n), E=19-27 MeV; ¹⁴¹Pr, ¹³⁹La(α, 4nγ), E=49-55 MeV; measured Eγ, Iγ(E), Iγ(θ), I(ce), γγ-coin, pγ(t), ³Heγ(t), (ce)p(t), (ce)³He(t). ¹³⁹Pr, ¹⁴¹Pm deduced levels, J, π, T_1/2, ICC, B(λ), δ(E2/M1). Enriched, natural targets.

doi: 10.1016/0375-9474(80)90506-0
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1979KO35      Nucl.Phys. A332, 422 (1979)

M.Kortelahti, A.Pakkanen, M.Piiparinen, E.Hammaren, T.Komppa, R.Komu

In-Beam Study and a Rotational Description of Low-Lying Levels in the N = 88 Nucleus ¹⁴⁹Pm

NUCLEAR REACTIONS ¹⁵⁰Nd(p, 2nγ), E=12.1-15.8 MeV; measured Eγ, Iγ(E), Iγ(θ), γγ-coin, pγ-delay. ¹⁴⁹Pm deduced levels, J, π, T_1/2. Enriched targets.

doi: 10.1016/0375-9474(79)90011-3
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1977FI08      Nucl.Phys. A288, 57 (1977)

L.K.Fifield, F.P.Calaprice, C.H.Zimmerman, M.J.Hurst, A.Pakkanen, T.J.M.Symons, F.Watt, K.W.Allen

Measurements of the Radiative Widths of the First T = 1, 2⁺ State of ²⁰Ne and their Relationship to Analog β-Decays

NUCLEAR REACTIONS ¹⁶O(α, γ), E=6.93 MeV; measured σ(Eα, Eγ). ²⁰Ne 10.27 MeV, 2+ T=1 level deduced branching ratios, Γγ, weak magnetism form factors. Enriched gas target.

doi: 10.1016/0375-9474(77)90081-1
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1977KO24      Nucl.Phys. A288, 365 (1977)

M.Kortelahti, A.Pakkanen, M.Piiparinen, T.Komppa, R.Komu

Structure of Odd-A Pm Nuclei (I). ¹⁴⁷Pm

NUCLEAR REACTIONS ¹⁴⁸Nd(p, 2nγ), E=12.1-20.2 MeV; measured Eγ, Iγ(E), Iγ(θ), ICC, γγ-coin, pγ-delay. ¹⁴⁷Pm deduced levels, J, π, T_1/2, ICC, B(λ), δ(E2/M1). Enriched targets.

doi: 10.1016/0375-9474(77)90337-2
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1977PA20      Z.Phys. A282, 277 (1977)

A.Pakkanen, M.Piiparinen, M.Kortelahti, T.Komppa, R.Komu, J.Aysto

Properties of Isomeric States and the πd-vi₁₃/₂ Multiplet in ¹⁹⁴Au

RADIOACTIVITY ^194mAu; measured I(ce); deduced ICC.

NUCLEAR REACTIONS ¹⁹⁴Pt(p, nγ), E=11.6 MeV; ¹⁹⁵Pt(p, 2nγ), E=12.1, 14.8, 15.8, 17.8, 20.3 MeV; measured Eγ, Iγ, γγ(t), γ(θ). ¹⁹⁴Au deduced levels, T_1/2, λ, B(λ).

doi: 10.1007/BF01414895
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1976SY01      Phys.Lett. 63B, 409 (1976)

T.J.M.Symons, L.K.Fifield, M.J.Hurst, A.Pakkanen, F.Watt, C.H.Zimmerman, K.W.Allen

The Second 13/2⁺ State in ¹⁹F

NUCLEAR REACTIONS ¹⁵N(α, γ), E=5.1-8.6 MeV; measured σ(E, Eγ, θ). ¹⁹F deduced resonance, J, π, transition strengths, δ.

doi: 10.1016/0370-2693(76)90382-8
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1975HE13      Nucl.Phys. A247, 317 (1975)

H.Helppi, A.Pakkanen, J.Hattula

Mixing of the Transitions from the 3⁺ Quasi γ-Band Level in ¹⁵²Gd

RADIOACTIVITY ¹⁵²Eu [from ¹⁵¹Eu(n, γ)]; measured γγ(θ). ¹⁵²Gd deduced B(E2) ratios, γ-multipole mixing. Enriched target.

doi: 10.1016/0375-9474(75)90638-7
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1975KO02      Nucl.Phys. A240, 87 (1975)

M.Kortelahti, A.Pakkanen, J.Kantele

Electromagnetic Transition Rates in ²⁰⁸Pb

RADIOACTIVITY ²⁰⁸Tl [from equilibrium product of ²²⁸Th]; measured Eγ, Iγ, γγ-, γγγ-coin. ²⁰⁸Pb deduced levels, γ-branching, B(M1), B(E2).

doi: 10.1016/0375-9474(75)90438-8
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1975PA07      Z.Phys. A274, 127 (1975)

A.Pakkanen, M.Kortelahti, H.Helppi, J.Kantele, T.Poikolainen, R.Komu

Decay of 14.6 h ⁹⁰Nb

RADIOACTIVITY ⁹⁰Nb [from ⁹⁰Zr(p, n)]; measured Eγ, Iγ, γγ-coin; deduced log ft. ⁹⁰Zr deduced levels, J, π, γ-branching. Ge(Li), anti-Compton detectors. Natural targets.

doi: 10.1007/BF01408464
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1975TA06      Z.Phys. A272, 301 (1975)

C.W.Tang, A.Pakkanen, Z.C.Mester, C.D.Coryell, G.Chilosi, K.Bos, A.H.Wapstra

The Decay of 2.4 h ^117gCd and 3.4 h ^117mCd

RADIOACTIVITY ^117,117mCd [from ¹¹⁶Cd(n, γ), (d, p)]; measured Eγ, Iγ, γγ-coin, T_1/2, Eβ; deduced Qβ, log ft, Eβ max. ¹¹⁷In deduced levels, J, π, γ-branching.

doi: 10.1007/BF01438024
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1974HE08      Nucl.Phys. A223, 13 (1974)

H.Helppi, A.Pakkanen, J.Hattula

The E2/M1 Mixing of the Transitions from the Kπ = 2⁺ Bands in ^190,192Os and ¹⁹²Pt

RADIOACTIVITY ¹⁹⁰Ir [from ¹⁹²Os(p, 3n)], ¹⁹²Ir [from ¹⁹¹Ir(n, γ)]; measured γγ, γγ(θ). ^190,192Os, ¹⁹²Pt deduced γ-multipole mixing. Natural targets.

doi: 10.1016/0375-9474(74)90276-0
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1973PA08      Nucl.Phys. A206, 164 (1973)

A.Pakkanen, P.Puumalainen, H.Helppi, T.Komppa

Isomeric Transition in ¹⁹⁸Au

RADIOACTIVITY ^198mAu [from ¹⁹⁷Au(d, p), ¹⁹⁸Hg(n, p)]; measured T_1/2, Eγ, ICC, Iγ, I(ce), γγ-, ceγ-coin, γγ-delay, ICC; ¹⁹⁸Au deduced levels, J, π, T_1/2.

doi: 10.1016/0375-9474(73)90613-1
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1973PA21      Phys.Fenn. 8, 345 (1973)

A.Pakkanen, D.W.Heikkinen

A 6.1 s Isomer and Rotational Bands in ¹⁹²Os

RADIOACTIVITY ^192mOs; measured T_1/2, Eγ, Iγ, Iβ, βγ-coin, γγ-coin. ¹⁹²Os deduced levels, J, π, λ.

NUCLEAR REACTIONS ¹⁹²Os(n, n'γ), E=14.5 MeV; measured ^192mOs yield.

1972HE36      Z.Phys. 255, 385 (1972)

H.Helppi, A.Pakkanen

Note on the Decay of ²⁰⁰Au

RADIOACTIVITY ²⁰⁰Au; measured Eγ, Iγ, Eβ, βγ-, γγ-coin; deduced log ft, Q. ²⁰⁰Hg deduced levels, J, π, γ-branching. Ge(Li), plastic detectors.

doi: 10.1007/BF01392472
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1972PA06      Nucl.Phys. A184, 157 (1972)

A.Pakkanen, T.Komppa, H.Helppi

New ²⁰⁴Au Activity and the Decay of ²⁰²Au

RADIOACTIVITY ²⁰²Au[from ²⁰²Hg(n, p), ²⁰⁵Tl(n, α)], ²⁰⁴Au[from ²⁰⁴Hg(n, p)]; measured T_1/2, Eγ, Iγ, γγ, γβ-coin; deduced log ft. ^202,204Hg deduced levels, J, π, γ-branching. Natural targets.

doi: 10.1016/0375-9474(72)90450-2
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1972PA24      Z.Phys. 254, 98 (1972)

A.Pakkanen, H.Helppi, T.Komppa, P.Puumalainen

Low-Lying Levels of ²⁰¹Hg from the Decay of ²⁰¹Au

RADIOACTIVITY ²⁰¹Au; measured Eγ, Iγ, γγ-coin, Eβ, βγ-coin, Xγ-coin; deduced Q, log ft. ²⁰¹Hg deduced levels, J, π, γ-branching. Ge(Li), Si(Li), NaI(Tl) detectors.

doi: 10.1007/BF01380058
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1972PA38      Comment.Phys.-Math. 42, 267 (1972)

A.Pakkanen, T.Komppa, H.Helppi

On Low-Lying Levels in Stable Even Mercury Isotopes

RADIOACTIVITY ^202,204Au; measured T_1/2. ^202,204Hg deduced levels.

1971KO03      Nucl.Phys. A163, 513 (1971)

T.Komppa, A.Pakkanen, J.Kantele

Reinvestigation of the Decay of ²⁰⁰Tl

RADIOACTIVITY ²⁰⁰Tl[from ¹⁹⁷Au(α, n), Hg(d, xn)]; measured Eγ, Iγ, γγ-coin; deduced log ft. ²⁰⁰Hg deduced levels, J, π, γ-branching. Natural targets.

doi: 10.1016/0375-9474(71)90505-7
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1971PA06      Nucl.Phys. A172, 193 (1971)

A.Pakkanen

Decay of 1.9 h ^198mTl and 5.3 h ^198gTl to Levels in ¹⁹⁸Hg

RADIOACTIVITY ¹⁹⁸Tl, ^198mTl[from ¹⁹⁸Hg(d, 2n)]; measured Eγ, Iγ, Xγ-delay, γγ-coin., γγ(θ); deduced log ft. ¹⁹⁸Hg deduced levels, T_1/2, J, π. Enriched target.

doi: 10.1016/0375-9474(71)90125-4
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1970BA62      Nucl.Phys. A158, 607 (1970)

P.A.Baedecker, A.Pakkanen, W.B.Walters

Decay of ¹¹⁷In Isomers and Search for a Low-Lying 9/2^- Level in ¹¹⁷Sn

RADIOACTIVITY ^117gIn, ^117mIn, ^117mSn[from ¹¹⁶Cd(n, γ), ¹¹⁷Cd(β-), ¹¹⁷In(β-)]; measured Eγ, Iγ, γγ-, βγ-coin, βγ-delay; deduced log ft. ¹¹⁷Sn deduced levels, T_1/2, J, π. Enriched targets. Ge(Li), NaI(Tl), , plastic detectors.

doi: 10.1016/0375-9474(70)90209-5
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1969PA02      Z.Physik 218, 273 (1969)

A.Pakkanen, J.Kantele, P.Suominen

Levels in ²⁰⁸Pb Populated in the Decay of ²⁰⁸Tl(ThC'')

RADIOACTIVITY ²⁰⁸Tl [from ²²⁸Th decay]; measured Eγ, Iγ, γγ-coin. ²⁰⁸Pb deduced levels.

doi: 10.1007/BF01458409
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1967PA22      Ann.Acad.Sci.Fennicae, Ser.A VI, No.253 (1967)

A.Pakkanen

Excited States of ⁵²Cr Populated in the Decay of ^52m,gMn and ⁵²V

NUCLEAR STRUCTURE ⁵²V, ⁵²Mn; measured not abstracted; deduced nuclear properties.