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Search: Author = M.Luontama

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1987JU06      Phys.Rev. C36, 1129 (1987)

R.Julin, J.Kantele, J.Kumpulainen, M.Luontama, A.Passoja, W.Trzaska, E.Verho, J.Blomqvist

E0 Study of O+ States near 5 MeV in 208Pb

NUCLEAR REACTIONS 208Pb(p, p'), E=17.3 MeV; 207Pb(d, p), E=10 MeV; measured I(ce), pγ-coin. 208Pb deduced levels, J, π, γ-multipolarity.

doi: 10.1103/PhysRevC.36.1129
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1986KA07      Phys.Lett. 171B, 151 (1986)

J.Kantele, M.Luontama, W.Trzaska, R.Julin, A.Passoja, K.Heyde

E0 Transitions in 202,204Pb and Intruder-State Systematics of Even-Even Lead Isotopes

NUCLEAR REACTIONS 203,205Tl(p, 2n), E=14.5 MeV; measured Eγ, Iγ, I(ce), γγ-coin. 202,204Pb deduced levels, I(ce) branching ratios, configuration, J, π, T1/2, upper limits.

doi: 10.1016/0370-2693(86)91523-6
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1986LU06      Z.Phys. A324, 317 (1986)

M.Luontama, R.Julin, J.Kantele, A.Passoja, W.Trzaska, A.Backlin, N.-G.Jonsson, L.Westerberg

Electromagnetic Properties of Low-Spin States in 102,104Pd

NUCLEAR REACTIONS 102Pd(p, p'), (p, 2n), E=6-15 MeV; measured p'γ-coin, I(ce), γ(t). 102,104Pd(16O, 16O'), E=44 MeV; measured Eγ, Iγ following Coulomb excitation. 102,104Pd levels deduced B(λ), relative σ.

1986PA14      J.Phys.(London) G12, 1047 (1986)

A.Passoja, J.Kantele, M.Luontama, R.Julin, E.Hammaren, P.O.Lipas, P.Toivonen

Electromagnetic Decay of 02+ and O3+ States in the N = 88-90 Nuclei of 150,152Sm

RADIOACTIVITY 152m,150mEu(EC), (β+), (β-) [from 150Sm(p, n), E=9.5 MeV; 151Eu(n, γ), E=thermal]; measured Iγ, Eγ, I(ce), I(ce)(X-ray)-coin. 150,152Sm deduced levels, J, π, B(λ), E0 strength parameter. Enriched targets, Ge(Li) detectors, magnetic plus Si-Li conversion electron spectrometer. Interacting boson model.

doi: 10.1088/0305-4616/12/10/013
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1986SZ01      Z.Phys. A323, 97 (1986)

J.Szerypo, B.Szweryn, P.Hornshoj, H.L.Nielsen, M.Luontama

Radiative Capture of Protons by the Deformed Nuclide 232Th

NUCLEAR REACTIONS, ICPND 232Th(p, γ), E=7-20 MeV; 232Th(p, F), E=11-20 MeV; measured radiative capture, fission σ(E). 233Pa deduced GDR excitation via DSD process.

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0383.

1986TI01      Nucl.Phys. A455, 477 (1986)

J.Timar, T.Fenyes, T.Kibedi, A.Passoja, M.Luontama, W.Trzaska, V.Paar

Proton-Neutron Multiplet States in 114In

NUCLEAR REACTIONS 114Cd(p, nγ), E=4.8, 5.3, 7 MeV; measured Eγ, Iγ, I(ce). 114In deduced levels, γ-branching ratios, J, π, γ-multipolarity. Ge(Li), hyperpure Ge detectors, combined magnetic plus Si(Li) electron spectrometer, enriched targets.

doi: 10.1016/0375-9474(86)90318-0
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1985PA07      Nucl.Phys. A438, 413 (1985)

A.Passoja, R.Julin, J.Kantele, J.Kumpulainen, M.Luontama, W.Trzaska

Electromagnetic Decay of Excited 0+ States in 64,66,68Zn

RADIOACTIVITY 64Ga(β+), (EC) [from 64Zn(p, n), E=14 MeV]; measured Iγ, Eγ, I(ce). Ge(Li) detectors, magnetic plus Si-Li conversion electron, internal pair spectrometers, enriched targets.

NUCLEAR REACTIONS 64,66,68Zn(p, p'γ), E=5.9-6.9 MeV; measured Iγ, Eγ, I(ce), internal pair production spectrum, γp-coin, γp(t), (ce)p(t). 64,66,68Zn deduced levels, J, π, B(E0)/B(E2), E0 strength parameter.

doi: 10.1016/0375-9474(85)90383-5
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1985PA15      Nucl.Phys. A441, 261 (1985)

A.Passoja, R.Julin, J.Kantele, M.Luontama, M.Vergnes

E0 Transitions in 70Ge and Shape-Coexistence Interpretation of Even-Mass Ge Isotopes

NUCLEAR REACTIONS 70Ge(p, p'γ), E=6.9 MeV; measured Iγ, Eγ, I(ce), internal pair production spectrum, γp'-coin, (ce)p(t). 70Ge deduced levels, J, π, B(E0)/B(E2), E0 strength parameter (ρ)2. Ge(Li) detectors, magnetic plus Si-Li conversion electron, internal pair spectrometers, enriched targets.

doi: 10.1016/0375-9474(85)90033-8
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1984FE07      ATOMKI Kozlem. 26, 22 (1984)

T.Fenyes, T.Kibedi, J.Timar, A.Passoja, M.Luontama, W.Trzaska, V.Paar

Proton-Neutron Multiplet States in 114In

NUCLEAR REACTIONS 114Cd(p, nγ), E=4.8, 5.3, 7 MeV; measured Eγ, Iγ. 114In deduced levels, J, π, γ-branching ratios, γ-multipolarity, multiplet classification. Cluster vibration model.

1984JU01      ATOMKI Kozlem. 26, 36 (1984)

R.Julin, M.Luontama, A.Passoja, W.Trzaska

Decay of 0+2 States in Even-Even N = 82 Nuclei

NUCLEAR REACTIONS 144Sm(p, p'), 140Ce, 138Ba(d, 2n), E not given; measured I(ce), centroid shifts. 144Sm, 142Nd, 140Ce levels deduced decay characteristics, T1/2, (E0/E2) branching ratio, monopole transition strength, B(E2).

RADIOACTIVITY 144Eu, 142Pr, 142Pm(β+), (EC); measured Eγ, Iγ, I(ce) following β-decay. 144Sm, 142Nd, 140Ce levels deduced decay characteristics, (E0/E2) branching ratio, B(E2), monopole transition strength.

1983KA06      Nucl.Instrum.Methods 206, 403 (1983)

J.Kantele, M.Luontama, W.Trzaska, A.Passoja

Single-Detector Particle Identification in Conjunction with Coincidence Measurements

NUCLEAR REACTIONS 152Sm(p, p'γ), (p, dγ), (p, tγ), E=17 MeV; measured Eγ, Iγ, pγ-, dγ-, tγ-coin; 152Sm(p, 2n), E=19 MeV; measured I(ce), (ce)p-coin. Thin Si(Au), NE 102A, cylindrical plastic scintillation detectors.

doi: 10.1016/0167-5087(83)90376-9
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1983PA05      Phys.Lett. 124B, 157 (1983)

A.Passoja, J.Kantele, M.Luontama, J.Kumpulainen, R.Julin, P.O.Lipas, P.Toivonen

Disproof of the Alleged Two-Phonon Character of the O+2 State in 64Zn

RADIOACTIVITY 64Ga(β+), (EC); measured I(ce). 64Zn deduced level.

NUCLEAR REACTIONS 64Zn(p, p'), E=5.9-6.9 MeV; measured Eγ, Iγ, γp-coin. 64Zn deduced γ-branching, B(E2), B(E0)/B(E2), monopole transition strengths, 0+ level T1/2. Discussed inadequacy of existing nuclear models.

doi: 10.1016/0370-2693(83)91425-9
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1983PA09      Phys.Scr. T5, 145 (1983)

A.Passoja, J.Kantele, M.Luontama, J.Kumpulainen, R.Julin

Search for the Two-Phonon 0+ Strength in 64Zn

NUCLEAR REACTIONS 64Zn(p, p'), E=6.9 MeV; measured I(ce), γp-coin, pair spectrum. 64Zn deduced 0+2 state T1/2, nonphonon character, B(E2), E0 transition strength.

doi: 10.1088/0031-8949/1983/T5/025
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1983PA10      Phys.Scr. T5, 147 (1983)

A.Passoja, M.Vergnes, J.Kantele, M.Luontama

Electric Monopole Strengths in Even-Mass Ge and Se Isotopes

RADIOACTIVITY 74,76Br(β+), (EC) [from 74,76Se(p, n), E=9 MeV]; measured Eγ, Iγ, I(ce). 74,76Se levels deduced I(K X-ray)/Iγ, T1/2, E0/E2 branching ratios.

NUCLEAR REACTIONS 70Ge(p, p'), E=6.9 MeV; measured γ(ce)(t). 72Ge(t, p), E not given; measured Eγ, Iγ, I(ce). 74Se(p, p'), E=5.9 MeV; measured γ-spectra centroid shift, (ce)γ(t). 70Ge, 74Se deduced level T1/2, B(E2) ratios. 74Ga deduced level T1/2, I(K X-ray)/Iγ, B(E2) ratios.

doi: 10.1088/0031-8949/1983/T5/026
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1982KA22      Nucl.Instrum.Methods 200, 253 (1982)

J.Kantele, R.Julin, M.Luontama, A.Passoja

A Method for Centroid-Shift Time Measurements with Magnetic Plus Si(Li) Combination Conversion-Electron Spectrometer

NUCLEAR REACTIONS 144Sm(3He, n), E=15.3 MeV; 62Ni, 92Zr(p, p'), E=7.08 MeV; measured I(ce), (ce)(t). 146Gd, 92Zr level deduced T1/2. Centroid timing method, magnetic plus Si-Li combination electron spectrometer, composite Ni, Zr target.

doi: 10.1016/0167-5087(82)90439-2
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1981BA05      Nucl.Phys. A351, 490 (1981)

A.Backlin, N.G.Jonsson, R.Julin, J.Kantele, M.Luontama, A.Passoja, T.Poikolainen

0+ States and E0 and E2 Transition Rates in Even Sn Nuclei

NUCLEAR REACTIONS 112,114,116,118,120,122,124Sn(16O, 16O'), E=48 MeV; measured Eγ, Iγ, γγ-coin, Coulomb excitation; 112,114,116,118,120,122,124Sn(p, p'γ), E not given; measured Iγ, Eγ, I(ce), γp'-, (ce)p'-coin, γp(t), (ce)p(t), Coulomb excitation; 124Sn(p, 2n), E not given; measured Eγ, Iγ, I(ce). 112,114,116,118,120,122,124Sn deduced levels, J, π, ICC, B(E0), B(E2), sign of matrix product.

RADIOACTIVITY 116,118,120Sb; measured Iγ, I(ce), γγ(θ); 116,118In; measured Iγ, I(ce), βγ-coin. 116,118Sn deduced levels, J, π, B(λ). Ge(Li), annular NaI detectors, magnetic spectrometers, enriched targets.

doi: 10.1016/0375-9474(81)90184-6
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1981CE06      Phys.Scr. 24, 930 (1981)

A.Celler, M.Luontama, J.Kantele, J.Zylicz

Cross Sections of 232Th(p, xn+yp) Reactions at E(p) = 6.8 to 20.2 MeV

NUCLEAR REACTIONS 232Th(p, xnyp), E=6.8-20.2 MeV; measured σ(E) for x=1, 2, 3, y=0, 1; deduced reaction mechanism. In-beam spectroscopy, activation technique, Ge(Li), hyperpure Ge detectors. Statistical, preequilibrium models.

doi: 10.1088/0031-8949/24/6/003
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetA0348.

1981JO03      Nucl.Phys. A371, 333 (1981)

N.-G.Jonsson, A.Backlin, J.Kantele, R.Julin, M.Luontama, A.Passoja

Collective States in Even Sn Nuclei

NUCLEAR REACTIONS 112,114,116,118,120,122,124Sn(16O, 16O'γ), E=48 MeV; measured Eγ, Iγ, γγ-coin. 112,114,116,118,120,122,124Sn(p, p'γ), E=6-8 MeV; measured Eγ, Iγ. 112,114,116,118,120,122,124Sn deduced B(E2), B(E3), B(E1). Ge(Li), NaI detectors. Enriched targets.

RADIOACTIVITY 116Sb; measured Iγ. 116Sn deduced B(E2) ratio.

doi: 10.1016/0375-9474(81)90071-3
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1981JU03      Z.Phys. A303, 147 (1981)

R.Julin, J.Kantele, M.Luontama, A.Passoja

Decay of 0+2 States in 88,92,94Zr and E0 Systematics of Zr Isotopes

RADIOACTIVITY 88Zr [from 89Y(p, 2n), E=17.2 MeV]; measured I(ce), Eγ, Iγ. 88Zr levels deduced B(E0)/B(E2).

NUCLEAR REACTIONS 92Zr(p, p'), E=7.08 MeV; 94Zr(p, p'), E=8.11 MeV; measured I(ce), Eγ, Iγ, T1/2 for 0+ states; deduced monopole strengths. 92,94Zr levels deduced B(E0)/B(E2), configurations. Si-Li detector plus magnetic lens electron spectrometer.

doi: 10.1007/BF01420272
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1981PA10      Nucl.Phys. A363, 399 (1981)

A.Passoja, R.Julin, J.Kantele, M.Luontama

High-Resolution Study of E0 Internal Pair Decay of Excited 0+ States in 58,60,62Ni

NUCLEAR REACTIONS 58,60,62Ni(p, p'γ), E=6.9 MeV; measured Iγ, Eγ, I(ce), internal pair production spectrum, γp'-coin, γp'(t). 58,60,62Ni deduced levels, J, π, B(E0)/B(E2), E0 strength parameter. Ge(Li) detectors, magnetic plus Si(Li) conversion-electron, internal-pair spectrometers. Enriched targets.

doi: 10.1016/0375-9474(81)90265-7
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1980JU05      Z.Phys. A296, 315 (1980)

R.Julin, J.Kantele, M.Luontama, A.Passoja, T.Poikolainen, A.Backlin, N.-G.Jonsson

Decay Characteristics of 0+2 and 0+3 States in 112Cd and 114Cd

RADIOACTIVITY 112Cd [from 111Cd(d, p), E=9 MeV; 112Cd(p, n)112In(β-decay)], 114Cd [from 113Cd(d, p), E=8 MeV]; measured Eγ, Iγ, I(ce), T1/2, γγ-, e-p-, γp-coin. 112,114Cd levels deduced B(E2), T1/2.

NUCLEAR REACTIONS Cd(16O, 16O'), E=44 MeV; measured double Coulomb excitation σ. 112,114Cd levels deduced B(E2), T1/2. Metallic Cd target.

doi: 10.1007/BF01438525
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1979KA01      Z.Phys. A289, 157 (1979)

J.Kantele, R.Julin, M.Luontama, A.Passoja, T.Poikolainen, A.Backlin, N.-G.Jonsson

Absolute E0 and E2 Transition Rates and Collective States in 116Sn

NUCLEAR REACTIONS 116Sn(16O, 16O'), E=48 MeV; measured σ(Coulomb-excitation). 116Sn deduced absolute E0, E2 transition rates. Discussed deformed excited states.

doi: 10.1007/BF01435933
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1979LU10      Nucl.Instrum.Methods 159, 339 (1979)

M.Luontama, J.Kantele, R.Julin, A.Passoja, T.Poikolainen, M.Pylvanainen

A Combination Intermediate-Image Magnetic Plus Si(Li) Electron Spectrometer for In-Beam Experiments

NUCLEAR REACTIONS 116Sn(p, p'), E=7.9 MeV; measured p(ce)-coin spectra. 111Cd(d, p), E=9 MeV; measured I(ce), p(ce)-coin spectra. 112Cd level deduced T1/2. Magnetic lens plus Si(Li) combination in-beam β-spectrometer.

doi: 10.1016/0029-554X(79)90659-1
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1978EL07      Nucl.Phys. A302, 125 (1978)

C.Ellegaard, R.Julin, J.Kantele, M.Luontama, T.Poikolainen

Half-Life of the Lowest 2p-1h State in 209Bi

NUCLEAR REACTIONS 208Pb(d, nγ), E=6, 8, 10 MeV; measured Eγ, ce(t). 209Bi deduced levels, J, π, ICC, T1/2. Enriched target.

doi: 10.1016/0375-9474(78)90290-7
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1978JU02      Nucl.Instrum.Methods 152, 471 (1978)

R.Julin, J.Kantele, M.Luontama, A.Passoja, T.Poikolainen

A Walk-Free Centroid Method for Lifetime Measurements with Pulsed Beams

NUCLEAR REACTIONS 116Sn(p, p'), E=6.93 MeV; 208Pb(d, p), E=10 MeV; measured particle spectrum, γ(t). 116Sn, 209Pb levels deduced T1/2.

doi: 10.1016/0029-554X(78)90048-4
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1976BA32      Phys.Lett. 62B, 402 (1976)

A.Backlin, W.Dietrich, R.Julin, J.Kantele, M.Luontama, L.Westerberg

E0 Transitions in 114,116,118Sn

RADIOACTIVITY 118Sb; measured I(ce). 118Sn level deduced B(E0)/B(E2).

NUCLEAR REACTIONS 114,116,118Sn(p, p'), E=6.40-6.92 MeV; measured I(ce). 114,116Sn levels deduced B(E0)/B(E2).

doi: 10.1016/0370-2693(76)90668-7
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1976JU03      Phys.Lett. 65B, 337 (1976)

R.Julin, J.Kantele, M.Luontama, T.Poikolainen, V.Rahkonen

Half-Lives of Two-Neutron-Hole 0+2 States in 206Pb and 208Po

NUCLEAR REACTIONS 209Bi(p, 2n), E=14.8 MeV; measured γ(t). 208Po, 206Pb deduced levels, λ, T1/2.

doi: 10.1016/0370-2693(76)90236-7
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