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1993LO14      Nucl.Instrum.Methods Phys.Res. A332, 554 (1993)

T.Lonnroth, J.Hattula, R.Julin, A.Lampinen, M.Aspnas, R.J.R.Back, J.Granlund, P.Waxlax

Analysis of Simulated Triples γ-Ray Data in a 100-Processor Transputer System

doi: 10.1016/0168-9002(93)90314-8
Citations: PlumX Metrics

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
Citations: PlumX Metrics

1992DE28      Nucl.Phys. A545, 822 (1992)

A.Dewald, P.Sala, R.Wrzal, G.Bohm, D.Lieberz, G.Siems, R.Wirowski, K.O.Zell, A.Gelberg, P.von Brentano, P.Nolan, A.J.Kirwan, P.J.Bishop, R.Julin, A.Lampinen, J.Hattula

Electromagnetic Transition Probabilities in ¹³⁰Ce

NUCLEAR REACTIONS ⁹⁸Mo(³⁶S, 4n), E=150 MeV; measured γγ-coin, recoil distance Doppler shift measurement. ¹³⁰Ce levels deduced T_1/2, B(λ). Triaxial rotor model comparison.

doi: 10.1016/0375-9474(92)90531-N
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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.

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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1989JU02      Nucl.Phys. A504, 205 (1989)

S.Juutinen, J.Hattula, M.Jaaskelainen, A.Virtanen, T.Lonnroth

Excited Structure of the ⁵⁶Ni-Plus-Three-Nucleon Isobars ⁵⁹Ni and ⁵⁹Cu

NUCLEAR REACTIONS ⁵⁸Ni(³He, 2pγ), (³He, npγ), E=15-27 MeV; measured Eγ, Iγ(E), Iγ(θ), γγ-coin, I(ce). ⁵⁹Ni, ⁵⁹Cu deduced levels, J, π, ICC, relative, absolute B(λ), band structures. Ge, Ge(Li) detectors, enriched target.

doi: 10.1016/0375-9474(89)90343-6
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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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1988FE01      Phys.Rev. C37, 101 (1988)

M.P.Fewell, N.R.Johnson, F.K.McGowan, J.S.Hattula, I.Y.Lee, C.Baktash, Y.Schutz, J.C.Wells, L.L.Riedinger, M.W.Guidry, S.C.Pancholi

Lifetimes of Yrast and Near-Yrast States of ^159,160,161Yb

NUCLEAR REACTIONS ¹¹⁶Cd(⁴⁸Ti, xn), E=205 MeV; ⁴⁸Ti(¹¹⁶Cd, xn), E=495 MeV; measured Eγ, Iγ, total energy spectra, recoil distance. ^159,160,161Yb deduced levels, J, π, sidefeeding Iγ, transition quadrupole moments, band structure.

doi: 10.1103/PhysRevC.37.101
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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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1987MO21      Nucl.Phys. A472, 295 (1987)

J.N.Mo, S.Sergiwa, R.Chapman, J.C.Lisle, E.Paul, J.C.Willmott, J.Hattula, M.Jaaskelainen, J.Simpson, P.M.Walker, J.D.Garrett, G.B.Hagemann, B.Herskind, M.A.Riley, G.Sletten

High-Spin, Discrete Line Spectroscopy of ¹⁶²Yb and ¹⁶⁴Hf and the Systematics of N = 29 Isotones

NUCLEAR REACTIONS ¹²²Sn(⁴⁴Ca, 4n), E=195 MeV; ¹²⁰Sn(⁴⁸Ti, 4n), E=225 MeV; measured γγ-coin, γγ(θ), γ(θ), linear polarization. ¹⁶²Yb, ¹⁶⁴Hf deduced levels, J, π. Systematic comparisons of N=92 isotones. Enriched targets.

doi: 10.1016/0375-9474(87)90212-0
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1986LO13      Phys.Scr. 34, 669 (1986)

T.Lonnroth, J.Hattula, V.Koponen, E.K.Warburton

Medium-Spin Structure of the N = 28 Isotones ⁵⁴Fe and ⁵⁵Co

NUCLEAR REACTIONS ⁵⁴Fe(³He, ³He'), (³He, d), (³He, n2p), (³He, pn), (³He, pd), E=27 MeV; measured Eγ, Iγ, γ(θ), γγ-coin. ⁵⁴Fe, ⁵⁵Co deduced levels, J, π, shapes, deformation parameters. Enriched target, Ge detector.

NUCLEAR STRUCTURE ⁵⁸Ni; calculated proton, neutron levels. Hartree-Fock calculations.

1986LO14      Phys.Scr. 34, 682 (1986)

T.Lonnroth, A.Virtanen, J.Hattula

Coexistence of Vibrational and Quasiparticle Structures in Neutron-Deficient ^{114,115,116,117}Te

NUCLEAR REACTIONS ¹¹⁶Sn(³He, 3n), E=27.5 MeV; ^114,116Sn(³He, 2n), E=24.4 MeV; ¹¹⁴Sn(³He, 3n), E=27 MeV; measured Eγ, Iγ, γ(θ), I(ce). ^{114,115,116,117}Te deduced levels, γ-multipolarity, ICC, δ, γ-branching, J, π, B(E2), band structure, configuration.

1986MC01      Phys.Rev. C33, 855 (1986)

F.K.McGowan, N.R.Johnson, I.Y.Lee, W.T.Milner, C.Roulet, J.Hattula, M.P.Fewell, Y.A.Ellis-Akovali, R.M.Diamond, F.S.Stephens, M.W.Guidry

Test of the Triaxial Rotor Model and the Interacting Boson Fermion Approximation Model Description of Collective States in ¹⁹¹Ir

NUCLEAR REACTIONS ¹⁹¹Ir(⁴⁰Ar, ⁴⁰Ar'), E=160 MeV; ¹⁹¹Ir(¹³⁶Xe, ¹³⁶Xe'), E=617 MeV; measured Eγ, Iγ(θ) following Coulomb excitation. ¹⁹¹Ir deduced levels, J, π, B(λ).

doi: 10.1103/PhysRevC.33.855
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1985CA12      Phys.Rev. C31, 1049 (1985)

J.L.S.Carvalho, F.M.Bernthal, R.M.Ronningen, N.R.Johnson, J.S.Hattula, I.Y.Lee, M.P.Fewell, L.L.Riedinger, J.C.Wells

High Spin States in ¹²⁸Ce

NUCLEAR REACTIONS ¹¹²Cd(²⁰Ne, 4n), E=103 MeV; measured γγ-coin, γ(θ). ¹²⁸Ce deduced levels, J, π, γ-branching, backbending plots. Compared with theory.

doi: 10.1103/PhysRevC.31.1049
Citations: PlumX Metrics

1985FE02      Phys.Rev. C31, 1057 (1985)

M.P.Fewell, N.R.Johnson, F.K.McGowan, J.S.Hattula, I.Y.Lee, C.Baktash, Y.Schutz, J.C.Wells, L.L.Riedinger, M.W.Guidry, S.C.Pancholi

Collectivity of ^160,161Yb at High Spin

NUCLEAR REACTIONS ¹¹⁶Cd(⁴⁸Ti, xn), ⁴⁸Ti(¹¹⁶Cd, xn), E(cm)=145 MeV; measured γ-spectra, recoil distance. ^160,161Yb levels deduced T_1/2, γ-branching, quadrupole moments, yrast sequence, quasiparticle alignment role, induced triaxiality.

doi: 10.1103/PhysRevC.31.1057
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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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1984LO12      ATOMKI Kozlem. 26, 29 (1984)

T.Lonnroth, J.Hattula, H.Helppi, S.Juutinen, K.Honkanen, A.Kerek

Study of Band Crossings in ¹³⁰Xe

NUCLEAR REACTIONS ¹³⁰Te(α, 4n), E not given; measured γ-spectra. ¹³⁰Xe deduced levels, J, π, band structure, γ-multipolarity. Triaxial cranking shell model. In-beam spectroscopy.

1984LO19      Nucl.Phys. A431, 256 (1984)

T.Lonnroth, J.Hattula, H.Helppi, S.Juutinen, K.Honkanen, A.Kerek

Study of Band Crossings in ¹³⁰Xe

NUCLEAR STRUCTURE ¹³⁰Xe; calculated levels, band structure; deduced quasiparticle content. Cranked shell model.

NUCLEAR REACTIONS ¹³⁰Te(α, 4n), E=42-51 MeV; measured γγ-coin, Iγ(E), γ(θ). ¹³⁰Xe deduced levels, J, π, band structure.

doi: 10.1016/0375-9474(84)90174-X
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1984WE17      Phys.Rev. C30, 1532 (1984)

J.C.Wells, N.R.Johnson, J.Hattula, M.P.Fewell, D.R.Haenni, I.Y.Lee, F.K.McGowan, J.W.Johnson, L.L.Riedinger

Evidence for Collective Behavior in ¹²⁸Ce from Lifetime Measurements

NUCLEAR REACTIONS ⁹²Zr(⁴⁰Ar, 4n), E=159 MeV; measured Eγ, Iγ, γ(t), Doppler shift, recoil. ¹²⁸Ce deduced yrast level T_1/2, J, π, band characteristics, B(E2). Cranked self-consistent theory.

doi: 10.1103/PhysRevC.30.1532
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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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1983JA04      Nucl.Phys. A396, 319c (1983)

M.Jaaskelainen, D.G.Sarantites, F.A.Dilmanian, R.Woodward, H.Puchta, J.R.Beene, J.Hattula, M.L.Halbert, D.C.Hensley, J.H.Barker

Evolution of Nuclear Shapes in ^157-161Yb as a Function of Spin and Neutron Number

NUCLEAR REACTIONS ¹⁴⁶Nd(²⁰Ne, 6n), (²⁰Ne, 7n), E=136, 149 MeV; ¹⁴⁶Nd(²⁰Ne, 8n), ¹⁴⁴Nd(²⁰Ne, 6n), (²⁰Ne, 7n), E=149 MeV; ¹⁴⁶Nd(²⁰Ne, 5n), E=136 MeV; measured continuum Eγ, Iγ, γ(θ) vs multiplicity. ^{157,158,159,160,161}Yb deduced nuclear shapes.

doi: 10.1016/0375-9474(83)90028-3
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1983JA12      Phys.Scr. T5, 175 (1983)

M.Jaaskelainen, D.G.Sarantites, F.A.Dilmanian, R.Woodward, H.Puchta, J.R.Beene, J.Hattula, M.L.Halbert, D.C.Hensley

Transition from Prolate to Oblate to Triaxial Shapes in ¹⁵⁸Yb

NUCLEAR REACTIONS ¹⁴⁴Nd(²⁰Ne, 6n), ¹⁴⁶Nd(²⁰Ne, 8n), E=149 MeV; measured γ-multiplicity, γ(θ) vs multiplicity. ¹⁵⁸Yb deduced average excitation energy, continuum decay characteristics, prolate to oblate shape change.

1983SA10      Nucl.Phys. A400, 435c (1983)

R.C.Sarantites, M.Jaaskelainen, F.A.Dilmanian, H.Puchta, R.Woodward, J.R.Beene, D.C.Hensley, M.L.Halbert, J.Hattula, J.H.Barker, R.Novotny, L.Adler, R.K.Choudhury, M.N.Namboodiri, R.P.Schmitt, J.B.Natowitz

Research Highlights with the Spin Spectrometer

NUCLEAR REACTIONS ¹⁴⁶Nd(²⁰Ne, 8n), E=136 MeV; ¹⁴⁶Nd(²⁰Ne, 6n), (²⁰Ne, 7n), E=136, 149 MeV; ¹⁴⁴Nd(²⁰Ne, 6n), (²⁰Ne, 7n), ¹⁴⁶Nd(²⁰Ne, 8n), E=149 MeV; measured continuum γ-spectra, γ-multiplicities; deduced fusion reaction, entry state energy, angular momentum dependences. ^160,158,159Yb deduced effective moment of inertia vs spin, entry line energy vs γ-multiplicity, localized stretched dipole transition. ^157,161Yb deduced localized stretched dipole transition.

doi: 10.1016/0375-9474(83)90448-7
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1982HA44      Phys.Scr. 26, 205 (1982)

J.Hattula, H.Helppi, A.Luukko

In-Beam Study of ^122,124,126Xe

NUCLEAR REACTIONS ^122,124,126Te(³He, 3n), E=20-27 MeV; measured Eγ, Iγ, I(ce), γ(θ), σ(Eγ) vs E, γγ-coin. ^122,124,126Xe deduced levels, J, π, ICC, δ, γ-branching, band structure. ¹²⁶Xe deduced isomer J, π, T_1/2.

doi: 10.1088/0031-8949/26/3/011
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1982JA08      Phys.Rev.Lett. 49, 1387 (1982)

M.Jaaskelainen, D.G.Sarantites, R.Woodward, F.A.Dilmanian, H.Puchta, J.R.Beene, J.Hattula, M.L.Halbert, D.C.Hensley, J.H.Barker

Evidence for a Prolate to Oblate Shape Change at High Spin in ¹⁶⁰Yb

NUCLEAR REACTIONS ¹⁴⁶Nd(²⁰Ne, 6n), E=136, 149 MeV; measured γ-multiplicity. ¹⁶⁰Yb deduced entry state population, decay properties, shape change. Spin spectrometer.

doi: 10.1103/PhysRevLett.49.1387
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1982JA10      Phys.Lett. 119B, 65 (1982)

M.Jaaskelainen, D.G.Sarantites, F.A.Dilmanian, R.Woodward, H.Puchta, J.R.Beene, J.Hattula, M.L.Halbert, D.C.Hensley

Evolution of the Decay Modes of ¹⁵⁸Yb with Spin

NUCLEAR REACTIONS ¹⁴⁴Nd(²⁰Ne, 6n), ¹⁴⁶Nd(²⁰Ne, 8n), E=149 MeV; measured continuum Eγ, Iγ, γ-anisotropies. ¹⁵⁸Yb deduced entry state decay, collectivity spin dependence, stretched dipole component.

doi: 10.1016/0370-2693(82)90244-1
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1981DO05      J.Phys.(London) G7, 1379 (1981)

F.Donau, J.Hattula, H.Helppi, A.Luukko, M.Jaaskelainen

How to Describe Low-Lying Bands in Odd-A Transitional Xenon Nuclei

NUCLEAR STRUCTURE ^{123,125,127,129}Xe; calculated levels, band structure. Core-quasiparticle model.

doi: 10.1088/0305-4616/7/10/015
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1981GO04      Nucl.Phys. A357, 109 (1981)

L.Goettig, Ch.Droste, A.Dygo, T.Morek, J.Srebrny, R.Broda, J.Styczen, J.Hattula, H.Helppi, M.Jaaskelainen

In-Beam Study of the ^128,130Xe Nuclei

NUCLEAR REACTIONS ^126,128Te(α, 2nγ), E=25.5-27 MeV; ^128,130Te(³He, 3nγ), E=20-27 MeV; measured Eγ, Iγ(θ), I(ce), γγ(t), αγ(t), ³Heγ(t), σ(Eγ). ^128,130Xe deduced levels, J, π, T_1/2, γ-multipolarity, δ, ICC.

doi: 10.1016/0375-9474(81)90628-X
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1981HE04      Nucl.Phys. A357, 333 (1981)

H.Helppi, J.Hattula, A.Luukko, M.Jaaskelainen, F.Donau

In-Beam Study of ^127,129Xe and Collective Description of the Level Structures in Odd-A Xe Nuclei

NUCLEAR REACTIONS ¹²⁶Te(³He, 2n), ^128,130Te(³He, 4n), E=20-27 MeV; ¹²⁶Te(α, n), E=18 MeV; measured Eγ, Iγ(θ), γγ-coin, γ(t), I(ce). ^127,129Xe deduced levels, J, π, T_1/2, ICC, δ(E2/M1). Enriched targets.

NUCLEAR STRUCTURE ^{123,125,127,129}Xe; calculated levels, band structure. Triaxial rotor, core plus quasiparticle model calculations.

doi: 10.1016/0375-9474(81)90225-6
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1981LU01      Nucl.Phys. A357, 319 (1981)

A.Luukko, J.Hattula, H.Helppi, O.Knuuttila, F.Donau

Level Structure in ¹²³Xe

NUCLEAR REACTIONS ¹²²Te(³He, 2n), ¹²³Te(³He, 3n), E=14-27 MeV; measured Eγ, Iγ(θ), γγ-coin, γ(t), I(ce). ¹²³Xe deduced levels, J, π, T_1/2, ICC, δ(E2/M1). Enriched targets.

doi: 10.1016/0375-9474(81)90224-4
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1979HE15      Nucl.Phys. A332, 183 (1979)

H.Helppi, J.Hattula, A.Luukko

Even- and Odd-Parity Band Structures in ¹²⁵Xe

NUCLEAR REACTIONS ¹²⁵Te(³He, 3nγ), E=20-27 MeV; measured Eγ, Iγ(θ), γγ-coin, γ(t). ¹²⁵Xe deduced levels, J, π, T_1/2. Enriched target.

doi: 10.1016/0375-9474(79)90103-9
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1978BE39      Z.Phys. A287, 219 (1978)

I.Bergstrom, J.Blomqvist, C.J.Herrlander, J.Hattula, O.Knuuttila, E.Liukkonen, V.Rahkonen

On the Yrast Two Proton-Two Neutron Hole States in ²⁰⁸Po

NUCLEAR REACTIONS ²⁰⁸Pb(α, 4nγ), E=41-51 MeV; measured γγ(t), Eγ, Iγ, γ(E), γ(θ), γγ-coin. ²⁰⁸Pb deduced levels, J, π, T_1/2, λ, δ.

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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1974BA26      Nucl.Phys. A222, 377 (1974)

B.B.Back, J.Bang, S.Bjornholm, J.Hattula, P.Kleinheinz, J.R.Lien

Neutron Strength Functions in Rare Earth Nuclei

NUCLEAR REACTIONS ^156,158,160Gd, ^160,162,164Dy, ^166,168,170Er, ^{170,172,174,176}Yb(d, p), E=9 MeV; measured σ(Ep). ^157,159,161Gd, ^161,163,165Dy, ^167,169,171Er, ^{171,173,175,177}Yb deduced neutron strength functions.

doi: 10.1016/0375-9474(74)90397-2
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1974BO02      Nucl.Phys. A218, 621 (1974)

J.Borggreen, J.Hattula, E.Kashy, V.Maarbjerg

Search for a γ-Branch from Shape Isomers in ²³⁶U and ²³⁸Np

NUCLEAR REACTIONS ²³⁵U(d, p), E=11 MeV; ²³⁸U(p, n), E=8 MeV; measured σ(delayed γ), T_1/2=130 ns, 2 μs < T_1/2 < 20 ms. ^236mU, ^238mNp deduced limits on σ for delayed γ from shape isomer.

doi: 10.1016/0375-9474(74)90044-X
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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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1972KA59      Comment.Phys.-Math. 42, 266 (1972)

E.Kashy, J.Hattula, J.Borggreen, V.Maarbjerg

Search for γ-Branch in the ^236mU Fission Isomer Decay

RADIOACTIVITY ^236mU; measured upper limit for γ-ray decay.

1971HA09      Z.Phys. 241, 117 (1971)

J.Hattula, H.Helppi, J.Kantele

Directional Correlations of Some γ-Ray Cascades in ²⁰⁰Hg

RADIOACTIVITY ²⁰⁰Tl; measured γγ(θ). ²⁰⁰Hg levels deduced γ-mixing, J, π.

doi: 10.1007/BF01397900
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1971LI09      Z.Phys. 241, 150 (1971)

E.Liukkonen, J.Hattula

Level Structure of ¹²⁰Sn from the Decay of ¹²⁰In and ¹²⁰Sb Isomers

RADIOACTIVITY ^120mIn, ^120mSb; measured Eγ, Iγ, γγ-coin; deduced log ft. ^120mIn; measured T_1/2, γγ-delay. ¹²⁰Sn deduced levels, J, π.

doi: 10.1007/BF01397904
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1970HA08      Z.Phys. 231, 203 (1970)

J.Hattula, E.Liukkonen, J.Kantele

Levels of ¹¹⁸Sn Populated in the Decay of ¹¹⁸In and ¹¹⁸Sb Isomers

RADIOACTIVITY ^118mIn; measured Eγ, Iγ, γγ-coin; deduced log ft. ^118,118mSb; measured Eγ, Iγ, γγ-coin, γγ(θ); deduced log ft. ¹¹⁸Sn deduced levels, J, π, B(E2).

doi: 10.1007/BF01401032
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1970HE29      Phys.Scr. 2, 155 (1970)

H.Helppi, J.Hattula

Multipole Character of Some Gamma Transitions in ¹⁵²Sm

RADIOACTIVITY ¹⁵²Eu; measured γγ(θ). ¹⁵²Sm levels deduced J, π, γ-mixing. Ge(Li), NaI(Tl) detectors.

doi: 10.1088/0031-8949/2/4-5/005
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1969HA08      Nucl.Phys. A125, 477 (1969)

J.Hattula, E.Liukkonen, J.Kantele

New Isomeric State in ¹¹⁸In

RADIOACTIVITY ¹¹⁸In isomer [from ¹¹⁸Sn(n, p)]; measured Eγ, Iγ, ICC, T_1/2; deduced J, π. ¹¹⁸Sn deduced levels. Enriched target.

doi: 10.1016/0375-9474(69)91088-4
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1969LI14      Nucl.Phys. A138, 163 (1969)

E.Liukkonen, J.Hattula, A.Anttila

Levels of ⁸²Kr from the Decay of 35 h ⁸²Br

RADIOACTIVITY ⁸²Br[from ⁸¹Br(n, γ)]; measured Eγ, Iγ, γγ-coin, γγ(θ); deduced Iβ, log ft. ⁸²Kr deduced levels, J, π. Natural target, Ge(Li) detector.

doi: 10.1016/0375-9474(69)90389-3
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1968HA35      Ann.Acad.Sci.Fennicae, Ser.A VI, No.274 (1968)

J.Hattula, E.Liukkonen

On the Decay of 30s ^106gRh

RADIOACTIVITY ¹⁰⁶Rh; measured Eγ, Iγ, γγ-coin, γγ(θ). ¹⁰⁶Pd deduced levels, J, π.

1968HA36      Nucl.Instr.Methods 65, 77 (1968)

J.Hattula, J.Kantele, A.Sarmanto

The Use of the Integral-Bias Summing Coincidence Spectrometer in Directional Correlation Measurements

NUCLEAR STRUCTURE ¹⁰⁶Ru, ⁸⁸Y, ⁶⁰Co, ¹¹⁸Te; measured not abstracted; deduced nuclear properties.

doi: 10.1016/0029-554X(68)90010-4
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1967KA22      Ann.Acad.Sci.Fennicae Ser.A, VI, No.259 (1967)

J.Kantele, J.Hattula, T.Hattula, H.Kalm, O.J.Marttila

Decay of ¹¹⁹Te Isomers and Structure of ¹¹⁹Sb

NUCLEAR STRUCTURE ¹¹⁹Te, ¹¹⁹Sb; measured not abstracted; deduced nuclear properties.

1966KA21      Nucl.Instr.Methods 39, 194 (1966)

J.Kantele, O.J.Marttila, J.Hattula

Gamma Spectrometer Systems Employing an Anti-Compton Annulus

RADIOACTIVITY ⁵²Mn; measured Eγ, Iγ, βγ-coin. ⁸⁸Y, ²⁰⁷Bi, ²⁰⁸Tl; measured γγ-coin. ⁵²Cr, ⁸⁸Sr, ^207,208Pb deduced levels. Anti-Compton spectrometer.

doi: 10.1016/0029-554X(66)90225-4
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Note: The following list of authors and aliases matches the search parameter J.Hattula: , J.S.HATTULA