NSR Query Results
Output year order : Descending NSR database version of April 25, 2024. Search: Author = J.Keinonen Found 84 matches. 2013MI01 Nucl.Instrum.Methods Phys.Res. B300, 1 (2013) K.Mizohata, J.Raisanen, J.Keinonen, E.Harkonen, J.Palmans, M.Ritala Stopping cross sections of atomic layer deposited Al2O3 and Ta2O5 and of Si3N4 for 12C, 16O, 35Cl, 79Br and 127I ions NUCLEAR REACTIONS Al, Ta, Si(12C, X), (16O, X), (35Cl, X), (79Br, X), (127I, X), E=0.03-1 Mev/nucleon; measured reaction products, TOF, ion energy spectra; deduced stopping σ. Comparison with available data.
doi: 10.1016/j.nimb.2013.02.010
1998KA31 Phys.Rev. C58, 699 (1998) A.Kangasmaki, P.Tikkanen, J.Keinonen, W.E.Ormand, S.Raman, Zs.Fulop, A.Z.Kiss, E.Somorjai Lifetimes of 32S Levels NUCLEAR REACTIONS 2H(31P, n), E=24, 29 MeV; 28Si(6Li, np), E=8, 12 MeV; 31P(p, γ), E=1.0-1.6 MeV; measured Doppler-broadened Eγ, Iγ. 32S levels deduced T1/2, branching ratios, δ, B(E2), B(M1). DSA analysis, Monte Carlo simulations. NUCLEAR STRUCTURE 32S; calculated levels, T1/2, δ. Shell model.
doi: 10.1103/PhysRevC.58.699
1997KA15 Phys.Rev. C55, 1697 (1997) A.Kangasmaki, P.Tikkanen, J.Keinonen, W.E.Ormand, S.Raman Lifetimes of 32P Levels NUCLEAR REACTIONS 2H(31P, p), E ≈ 24, 29 MeV; measured Eγ, Iγ, DSA. 32P deduced levels, J, π, γ-multipolarity, δ(E2/M1), γ-branching ratio, B(λ). Shell model.
doi: 10.1103/PhysRevC.55.1697
1996FU07 Nucl.Phys. A604, 286 (1996) Zs.Fulop, G.Levai, E.Somorjai, A.Z.Kiss, J.Cseh, P.Tikkanen, J.Keinonen A Comprehensive Study of the 34S + α System NUCLEAR REACTIONS, ICPND 34S(α, γ), E=3.4-4.4 MeV; measured γ yield vs E. 38Ar deduced levels, J, π, B(λ). Implanted target. Semimicroscopic algebraic cluster model, dynamic symmetry.
doi: 10.1016/0375-9474(96)00173-X
1996RA04 Phys.Rev. C53, 616 (1996) S.Raman, E.K.Warburton, J.W.Starner, E.T.Jurney, J.E.Lynn, P.Tikkanen, J.Keinonen Spectroscopy of 20F Levels NUCLEAR REACTIONS 19F(n, γ), E=thermal; measured Eγ, Iγ. 20F deduced levels, J, π, γ-branching ratios, spectroscopic strengths, γ multipolarity. Other reaction data input.
doi: 10.1103/PhysRevC.53.616
1994KA26 Phys.Rev. C50, 1370 (1994) A.Kangasmaki, P.Tikkanen, J.Keinonen Short Lifetimes in 28Al NUCLEAR REACTIONS 2H(27Al, p), E=15, 16, 29 MeV; measured Eγ, DSA. 28Al levels deduced T1/2. Implanted, enriched 2H targets.
doi: 10.1103/PhysRevC.50.1370
1994PE26 Nucl.Instrum.Methods Phys.Res. B89, 346 (1994) L.Persson, H.J.Whitlow, J.Keinonen, P.Torri, I.Maximov, L.Samuelsson, J.Knox, K.G.Malmqvist 1H(15N, αγ)12C Nuclear Resonance Broadening Measurements of Hydrogen Incorporation During Plasma Etching of GaAs and Ga(x)In(1-x)As Quantum Wells NUCLEAR REACTIONS 1H(15N, αγ), E=6.385 MeV; measured photoluminescene spectra, hydrogen incorporation during plasma etching of GaAs, Ga(x)In(1-x) quantum wells.
doi: 10.1016/0168-583X(94)95197-7
1994RA17 Phys.Rev. C50, 682 (1994) S.Raman, E.T.Jurney, J.W.Starner, A.Kuronen, J.Keinonen, K.Nordlund, D.J.Millener Lifetimes in 15N from Gamma-Ray Line Shapes Produced in the 2H(14N, pγ) and 14N(thermal n, γ) Reactions NUCLEAR REACTIONS 2H(14N, p), E=10 MeV; 14N(n, γ), E=thermal; measured Eγ, Iγ, DSA; deduced 15N, 15O mirror symmetry features. 15N levels deduced T1/2.
doi: 10.1103/PhysRevC.50.682
1994TO03 Nucl.Instrum.Methods Phys.Res. B84, 105 (1994) P.Torri, J.Keinonen, K.Nordlund A Low-Level Detection System for Hydrogen Analysis with the Reaction 1H(15N, αγ)12C NUCLEAR REACTIONS, ICPND 1H(15N, α), E=6.39 MeV; measured γ-spectra, γ yield; deduced spectrometer efficiency. Low level detection system.
doi: 10.1016/0168-583X(94)95710-X
1993TI02 Phys.Rev. C47, 145 (1993) P.Tikkanen, J.Keinonen, A.Kangasmaki, Zs.Fulop, A.Z.Kiss, E.Somorjai Short Lifetimes in 28Si NUCLEAR REACTIONS 14N(16O, np), E=20-28 MeV; 27Al(p, γ), E=0.66-1.32 MeV; measured DSA, Eγ, Iγ. 28Si levels deduced T1/2, B(λ), transition matrix elements. Hyperpure Ge detectors, enriched, implanted targets. Monte Carlo analysis, sd-shells, universal shell model.
doi: 10.1103/PhysRevC.47.145
1992KU17 Nucl.Phys. A549, 59 (1992) A.Kuronen, J.Keinonen, H.G.Borner, J.Jolie, S.Ulbig Molecular Dynamics Simulations Applied to the Determination of Nuclear Lifetimes from Dopler-Broadened γ-Ray Line Shapes Produced in Thermal Neutron Capture Reactions NUCLEAR REACTIONS 35Cl, 48Ti, 53Cr, 56Fe, 60,58Ni(n, γ), E=thermal; analyzed Doppler broadened γ-ray line shapes. 36Cl levels deduced T1/2, M1, E2 transition matrix elements, branching ratio. 49Ti, 54Cr, 57Fe, 61,59Ni levels deduced T1/2. Molecular dynamics simulations.
doi: 10.1016/0375-9474(92)90067-T
1991TI02 Phys.Rev. C43, 2162 (1991) P.Tikkanen, J.Keinonen, A.Kangasmaki, Zs.Fulop, A.Z.Kiss, E.Somorjai Short Lifetimes in Mirror Nuclei 25Mg-25Al NUCLEAR REACTIONS 12C(15N, np), E=17-27 MeV; 24Mg(p, γ), E=1.2-1.8 MeV; measured DSA. 25Mg, 25Al levels deduced T1/2. Implanted, enriched 12C, 24Mg targets.
doi: 10.1103/PhysRevC.43.2162
1990KE05 Nucl.Instrum.Methods Phys.Res. B50, 39 (1990) Analysis of Cu and O in High-T(c) Superconductors by 7-9 MeV Protons NUCLEAR REACTIONS Cu, O(p, γ), E=7-9 MeV; measured Eγ, Iγ; deduced relevance to Cu, O analysis in high-T(c) superconductors.
doi: 10.1016/0168-583X(90)90326-P
1990TI02 Phys.Rev. C42, 581 (1990) P.Tikkanen, J.Keinonen, K.Arstila, A.Kuronen, B.H.Wildenthal Lifetimes of the Lowest (5/2)+ and (9/2)+ States in the Mirror Nuclei 23Na-23Mg NUCLEAR REACTIONS 12C(12C, p), (15N, α), (12C, n), E=15-27 MeV; measured DSA, nγ-coin, Eγ. 23Na, 23Mg levels deduced T1/2. Implanted enriched 12C targets.
doi: 10.1103/PhysRevC.42.581
1990TI07 Nucl.Phys. A517, 176 (1990) P.Tikkanen, J.Keinonen, A.Kuronen, A.Z.Kiss, E.Koltay, E.Pintye, B.H.Wildenthal Short Lifetimes in 29Si-29P for the Test of Shell-Model Wave Functions NUCLEAR REACTIONS 15N(16O, np), E=17, 20, 22 MeV; 28Si(p, γ), E=1.38, 1.65, 2.08, 2.29 MeV; measured DSA. 29Si, 29P levels deduced T1/2, δ, γ-branching. Implanted, enriched 15N, 28Si targets. Shell model comparison.
doi: 10.1016/0375-9474(90)90267-P
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 T1/2. Enriched targets.
doi: 10.1103/PhysRevC.42.2431
1989KE04 Nucl.Phys. A493, 124 (1989) J.Keinonen, P.Tikkanen, A.Kuronen, A.Z.Kiss, E.Somorjai, B.H.Wildenthal Short Lifetimes in 24Mg for Test of Rotational Collectivity in Shell-Model Wave Functions NUCLEAR REACTIONS 23Na(p, γ), E=0.7, 1.7 MeV; 12C(14N, pn), E=20, 24 MeV; measured γ-spectra, DSA. 24Mg levels deduced T1/2. Implanted, enriched 23Na, 12C targets.
doi: 10.1016/0375-9474(89)90536-8
1989SM06 S.Afr.J.Phys. 12, 74 (1989) J.J.A.Smit, Z.H.J.Pretorius, F.B.Waanders, J.P.L.Reinecke, J.Keinonen The 40Ar(p, γ)41K Reaction NUCLEAR REACTIONS, ICPND 40Ar(p, γ), E=0.9-1.6 MeV; measured γ-yield curve, γ(θ); deduced Q. 41K deduced resonances, J, π, B(λ).
1988CS02 Nucl.Phys. A489, 225 (1988) J.Cseh, M.Jozsa, A.Z.Kiss, E.Koltay, E.Somorjai, J.Keinonen, P.Tikkanen The Reaction 36S(α, γ)40Ar: γ-transition properties of resonance and bound states in 40Ar NUCLEAR REACTIONS 36S(α, γ), E=2.35-3.50 MeV; measured γ(θ), γ yield, DSA. 40Ar levels deduced J, π, T1/2. Implanted, enriched 36S targets.
doi: 10.1016/0375-9474(88)90150-9
1988ET01 Phys.Rev. C38, 1382 (1988) M.C.Etchegoyen, A.Etchegoyen, B.H.Wildenthal, B.A.Brown, J.Keinonen Analysis of Magnetic Dipole Transitions between sd-Shell States NUCLEAR STRUCTURE A=18-38; calculated B(M1); deduced effective magnetic dipole operator. Shell model.
doi: 10.1103/PhysRevC.38.1382
1988KU33 Nucl.Instrum.Methods Phys.Res. B35, 1 (1988) A.Kuronen, J.Raisanen, J.Keinonen, P.Tikkanen, E.Rauhala Electronic Stopping Power for 7Li, 11B, 12C, 14N and 16O at Energies 0.4 to 2.1 MeV/Nucleon in Ta and Au, and for 12C at Energies 0.4, 0.8 and 1.4 MeV/Nucleon in 18 Elemental Solids
doi: 10.1016/0168-583X(88)90090-0
1987KU02 Phys.Rev. C35, 591 (1987) A.Kuronen, J.Keinonen, P.Tikkanen Cross Section of 16O + 16O near the Coulomb Barrier NUCLEAR REACTIONS, ICPND 16O(16O, X)28Si/30Si/30P/31P/31S/27Al/24Mg, E(cm)=8-13.8 MeV; measured Eγ, Iγ, σ(θ), DSA; deduced residuals production σ(E), astrophysical factors. Tantalum oxide target, Ge(Li) detector.
doi: 10.1103/PhysRevC.35.591
1987RA23 Nucl.Instrum.Methods Phys.Res. B28, 199 (1987) J.Raisanen, T.Witting, J.Keinonen Absolute Thick-Target γ-Ray Yields for Elemental Analysis by 7 and 9 MeV Protons NUCLEAR REACTIONS, ICPND 7Li, 9Be, 10,11B, 14N, 16O, 19F, 23Na, 24,26Mg, 27Al, 28,29,30Si, 31P, 32S, 35Cl, 39K, 40Ca, 46,47,48Ti, 52Cr, 55Mn, 54,56Fe, 59Co, 58,60Ni, 63Cu, 64Zn, 70,72Ge, 89Y, 90Zr, 93Nb, 92,95Mo, 96,104Ru, 107,109Ag, 111,114Cd, 113,115In, 116,119,118Sn, 121,123Sb, 127I, 147Sm, 156Gd, 178,179,180Hf, 181Ta, 183W, 194,195Pt, 197Au, 207,208Pb(p, γ), (p, n), E=7-9 MeV; measured absolute thick target γ yield, relative neutron yield. Ge(Li), BF3 detectors.
doi: 10.1016/0168-583X(87)90105-4
1987TI03 Phys.Rev. C36, 32 (1987) P.Tikkanen, J.Keinonen, R.Lappalainen, B.H.Wildenthal Short Lifetimes in 30P NUCLEAR STRUCTURE 30P; calculated levels, B(λ). Shell model. NUCLEAR REACTIONS 29Si(p, γ), E=1.4-2.1 MeV; measured DSA. 30P deduced levels, T1/2, γ-branching ratio, B(λ). Shell model.
doi: 10.1103/PhysRevC.36.32
1986JO09 Nucl.Phys. A456, 365 (1986) M.Jozsa, A.Z.Kiss, E.Koltay, B.Nyako, E.Somorjai, J.Keinonen The Reaction 36S(α, γ)40Ar: Yield curve, excitation energies and decay of 40Ar resonance levels NUCLEAR REACTIONS 36S(α, γ), E=2.3-3.55 MeV; measured σ(E(α)), γ-yields, E(γ). 40Ar deduced resonances, strengths, γ-branchings. Enriched targets.
doi: 10.1016/0375-9474(86)90399-4
1986TI02 Nucl.Phys. A456, 337 (1986) P.Tikkanen, J.Keinonen, V.Karttunen, A.Kuronen Transition Strengths in the Mirror Nuclei 27Si-27Al NUCLEAR REACTIONS 12C(16O, n), (16O, p), E=20 MeV; measured Eγ, Iγ, DSA. 27Si, 27Al levels deduced T1/2. Implanted, enriched 12C targets.
doi: 10.1016/0375-9474(86)90397-0
1985HA03 Phys.Rev.Lett. 54, 398 (1985) B.Haas, G.Duchene, F.A.Beck, T.Byrski, C.Gehringer, J.C.Merdinger, A.Nourredine, V.Rauch, J.P.Vivien, J.Barrette, S.Tobbeche, E.Bozek, J.Styczen, J.Keinonen, J.Dudek, W.Nazarewicz Strong Angular Momentum Effects in Near-Barrier Fusion Reactions NUCLEAR REACTIONS 144Nd(16O, xn), 123Sb(37Cl, xn), 96Zr(64Ni, xn), 80Se(80Se, xn), E=tandem; measured σ for x=2-5, evaporation residue σ, average γ-multiplicities. 160Er deduced near barrier angular momentum transfer entrance channel dependence. Ground state zero-point vibrations.
doi: 10.1103/PhysRevLett.54.398
1985LA16 Nucl.Phys. A441, 1 (1985) R.Lappalainen, J.Keinonen, A.Luukkainen Short Lifetimes in 34Cl NUCLEAR REACTIONS 33S(p, γ), E=1.06-1.98 MeV; measured Eγ, Iγ, DSA. 34Cl levels deduced T1/2. Implanted, enriched 33S targets.
doi: 10.1016/0375-9474(85)90164-2
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 T1/2, transition strength, γ-multipolarity, δ.
1984KE01 Nucl.Phys. A412, 101 (1984) J.Keinonen, A.Luukkainen, M.Bister Isoscalar E2 Strengths in the A = 34 Mass Triplet NUCLEAR REACTIONS 33S(p, γ), E=0.82, 1.43 MeV; measured σ(E, Eγ, θ), DSA. 34Cl levels deduced γ-ray branching ratios, T1/2. Implanted, enriched 33S targets.
doi: 10.1016/0375-9474(84)90387-7
1984LA24 Nucl.Phys. A426, 287 (1984) R.Lappalainen, J.Keinonen, A.Anttila, A.Kiss, E.Somorjai Short Lifetimes in 38Ar NUCLEAR REACTIONS 37Cl(p, γ), E=0.94-1.73 MeV; measured DSA. 38Ar levels deduced T1/2. Implanted, enriched 37Cl targets.
doi: 10.1016/0375-9474(84)90109-X
1984WO10 Nucl.Phys. A431, 170 (1984) B.Wormann, K.P.Lieb, R.Diller, L.Luhmann, J.Keinonen, L.Cleemann, J.Eberth The Yrast Bands In 77Kr and 76Kr NUCLEAR REACTIONS 63Cu(16O, 2np), (16O, pn), E=49-58 MeV; measured Eγ, I(Eγ), γ(θ), recoil distance Droppler shift, DSA, γγ-coin. 77Kr deduced levels, J, π, T1/2, (E2/M1) mixing ratio, B(E2), B(M1). 76Kr deduced T1/2, B(E2). Enriched target. Triaxial rotor plus quasiparticle model.
doi: 10.1016/0375-9474(84)90060-5
1983HA24 Nucl.Phys. A406, 339 (1983) O.Hausser, H.R.Andrews, D.Ward, N.Rud, P.Taras, R.Nicole, J.Keinonen, P.Skensved, C.V.Stager Large Transient Magnetic Fields for Rare-Earth Ions Recoiling in Gadolinium and γ-Factors of High-Spin States in 156,158,160Gd NUCLEAR REACTIONS 169Tm, Gd(34S, 34S'γ), E=58, 70, 80, 90, 100, 108, 115, 125, 130 MeV; 169Tm, Gd(63Cu, 63Cu'γ), E=230 MeV; measured (34S'γ)-, (63Cu'γ)-coin, Iγ(θ, H); deduced velocity dependence of transient magnetic field in Gd at 80 K. 156,158,160Gd levels deduced g. Ge(Li) detectors, natural targets, transient field IMPAC technique.
doi: 10.1016/0375-9474(83)90466-9
1983KE05 Nucl.Phys. A403, 45 (1983) J.Keinonen, B.Nyako, A.Luukkainen, A.Anttila Short Lifetimes in 26Al NUCLEAR REACTIONS 25Mg(p, γ), E=0.69-1.72 MeV; measured DSA. 26Al levels deduced T1/2. Implanted, enriched 25Mg targets.
doi: 10.1016/0375-9474(83)90186-0
1983KE12 Nucl.Instrum.Methods 216, 249 (1983) J.Keinonen, A.Luukkainen, A.Anttila, M.Erola Local Density Change of a Metal Backing Due to Implanted Ions: Effect of nuclear lifetimes obtained with the DSA method NUCLEAR REACTIONS 22Ne(p, γ), E=1.005 MeV; 27Al(p, γ), E=2.49 MeV; measured Eγ, Iγ, DSA; deduced bcc Mo, Ta metal changes in Ne, Al implanted regions. 23Na, 28Si level deduced local density change on T1/2.
doi: 10.1016/0167-5087(83)90357-5
1982AN10 Nucl.Phys. A383, 509 (1982) H.R.Andrews, O.Hausser, D.Ward, P.Taras, R.Nicole, J.Keinonen, P.Skensved, B.Haas Calibration of the Transient Magnetic Field for Rare-Earth Nuclei in Iron: Application to g-factors of high spin states in 152,154Sm NUCLEAR REACTIONS 152,154Sm, Gd, 156Gd, Dy, 169Tm, 174Yb(63Cu, 63Cu'), E=154, 230 MeV; 152,154Sm, Gd, 156Gd, Dy, 169Tm, 174Yb(79Br, 79Br'), (81Br, 81Br'), E=200, 240 MeV; measured (63Cu)γ-, (79Br)γ-coin, γ(θ, H); deduced transient field calibration, Z, velocity dependence. 152,154Sm levels deduced g. Natural, enriched targets, Ge(Li) detectors, transient field IMPAC technique.
doi: 10.1016/0375-9474(82)90088-4
1982BA40 Nucl.Phys. A386, 333 (1982) G.C.Ball, T.K.Alexander, W.G.Davies, J.S.Forster, I.V.Mitchell, J.Keinonen, H.B.Mak Lifetimes of Low-Lying Levels in 18F NUCLEAR REACTIONS 3He(16O, p), E=19.4 MeV; measured DSA, pγ-coin. 18F levels deduced T1/2.
doi: 10.1016/0375-9474(82)90116-6
1982BR05 Z.Phys. A304, 335 (1982) S.Brussermann, J.Keinonen, H.P.Hellmeister, K.P.Lieb Recoil Distance Lifetime Measurements in 82Kr NUCLEAR REACTIONS 76Ge(12C, 2nα), E=42-52 MeV; measured Eγ, Iγ, recoil. 82Kr levels deduced T1/2, configurations. Enriched targets. Two-quasiparticle plus rotor model, interacting boson approximation, cranked shell model.
1982GO11 Nucl.Phys. A385, 57 (1982) J.Gorres, C.Rolfs, P.Schmalbrock, H.P.Trautvetter, J.Keinonen Search for Low-Energy Resonances in 21Ne(p, γ)22Na and 22Ne(p, γ)23Na NUCLEAR REACTIONS, ICPND 21,22Ne(p, γ), E=70-355 keV; measured γ yields, σ(Eγ, E), Eγ, Iγ(E, θ); deduced astrophysical reaction rate. 22Na deduced resonances, Γγ, J, π, resonance strengths. 23Na deduced resonance strength upper limits. Enriched gas targets, Ge(Li) detectors.
doi: 10.1016/0375-9474(82)90489-4
1982HA03 Phys.Rev.Lett. 48, 383 (1982) O.Hausser, H.Graf, L.Grodzins, E.Jaeschke, V.Metag, D.Habs, D.Pelte, H.Emling, E.Grosse, R.Kulessa, D.Schwalm, R.S.Simon, J.Keinonen g Factors of High-Spin Yrast States in 232Th and 238U NUCLEAR REACTIONS 232Th, 238U(127I, 127I'), E=4.1 MeV/nucleon; 232Th, 238U(142Nd, 142Nd'), E=5.1 MeV/nucleon; measured Eγ, Iγ, multiple Coulomb excitation, recoil in ferromagnetic Gd, γ(127I)-, γ(142Nd)-coin. 232Th, 238U deduced high-spin yrast state g, high-j nucleon aligment.
doi: 10.1103/PhysRevLett.48.383
1982HA22 Nucl.Phys. A379, 287 (1982) O.Hausser, H.E.Mahnke, T.K.Alexander, H.R.Andrews, J.F.Sharpey-Schafer, M.L.Swanson, D.Ward, P.Taras, J.Keinonen Quadrupole Moments of Yrast Isomers in 144, 147, 148Gd NUCLEAR REACTIONS 120,124Sn(28Si, xn), E=108-144 MeV; measured Iγ(θ, H, t) vs T. 144,147,148Gd levels deduced quadrupole moment, tentative J, deformation. Pulsed beam, Ge(Li) detectors, recoil implantation into Gd.
doi: 10.1016/0375-9474(82)90394-3
1982KE01 Nucl.Phys. A376, 246 (1982) J.Keinonen, K.P.Lieb, H.P.Hellmeister, A.Bockisch, H.Emling Coulomb Excitation and Lifetime Measurements of the 21+ States in 76,82,84Kr NUCLEAR REACTIONS 63Cu(19F, 2nα), E=58 MeV; measured recoil. 27Al, 64,66Zn, 70,72,74,76Ge(82Kr, 82Kr'), (84Kr, 84Kr'), E=115, 118 MeV; measured Coulomb excitation, σ(E), DSA; deduced stopping power for Kr in Al, Zn, Ge, Ge in Ge, Zn in Zn. 76,82,84Kr level deduced B(E2), T1/2.
doi: 10.1016/0375-9474(82)90063-X
1982KE08 Nucl.Phys. A385, 461 (1982) J.Keinonen, A.Anttila, A.Luukkainen Analogue E2 Transitions in the A = 26 Nuclei NUCLEAR REACTIONS 25Mg(p, γ), E=1.2 MeV; measured σ(E, Eγ, θ), DSA. 26Al levels deduced γ-ray branching ratios, T1/2, E2 transition strengths. Implanted, enriched 25Mg targets.
doi: 10.1016/0375-9474(82)90097-5
1981CH04 Can.J.Phys. 59, 238 (1981) C.-W.Cheng, S.K.Saha, J.Keinonen, H.-B.Mak, W.McLatchie Hydrogen Burning of 39K in Explosive Oxygen Burning NUCLEAR REACTIONS 39K(p, γ), E=0.7-2.9 MeV; measured Iγ(θ), branching ratios; deduced astrophysical reaction rates of 39K hydrogen burning. 40Ca resonance deduced relative, absolute γ transition strengths.
doi: 10.1139/p81-030
1981KE04 Phys.Rev. C23, 2073 (1981) J.Keinonen, H.-B.Mak, T.K.Alexander, G.C.Ball, W.G.Davies, J.S.Forster, I.V.Mitchell Lifetime of the 1.04 MeV State in 18F, Measured through the Inverse Reaction 3He(16O, p)18F NUCLEAR REACTIONS 3He(16O, p), E=15.9 MeV; measured DSA, pγ-coin. 18F level deduced T1/2. He-ion implanted in thin Al, Nb, Zr foils, Ge(Li) detectors.
doi: 10.1103/PhysRevC.23.2073
1981RU02 Phys.Lett. 100B, 17 (1981) N.Rud, D.Ward, H.R.Andrews, P.Taras, J.Keinonen Evidence for Enhanced transition Rates in the Feeding of High Spin States in 147Gd NUCLEAR REACTIONS 124Sn(28Si, 5n), E=130, 145 MeV; measured γ-multiplicity, σ(Eγ), γ(θ). 147Gd deduced strectched E2 transition to quasiparticle yrast states, average B(E2), average entry spin J.
doi: 10.1016/0370-2693(81)90276-8
1981RU05 Phys.Lett. 101B, 35 (1981) N.Rud, D.Ward, H.R.Andrews, O.Hausser, P.Taras, J.Keinonen, M.Neiman, R.M.Diamond, F.S.Stephens Average g-Factors for High Spin States in 156Dy NUCLEAR REACTIONS 24Mg(136Xe, 4n), E=544, 570, 650 MeV; measured γ-multiplicities, γγ(θ, H) in Fe. 156Dy deduced average g in high-spin region.
doi: 10.1016/0370-2693(81)90483-4
1981WA04 Phys.Lett. 99B, 378 (1981) D.Ward, J.F.Sharpey-Schafer, T.K.Alexander, H.R.Andrews, O.Hausser, J.Keinonen Remeasurement of Lifetimes for High Spin States in 154Er NUCLEAR REACTIONS 126Te(32S, 4n), E=130-150, 155 MeV; measured Eγ, Iγ, recoil, σ(Eγ). 154Er deduced levels, γ-branching, T1/2, B(E2), yrast state configuration. Ge(Li), NaI(Tl)detectors.
doi: 10.1016/0370-2693(81)90552-9
1981WA16 Nucl.Phys. A365, 173 (1981) D.Ward, H.R.Andrews, A.J.Ferguson, O.Hausser, N.Rud, P.Skensved, J.Keinonen, P.Taras Average g-Factors for High-Spin States in 78Kr NUCLEAR REACTIONS 16,18O(65Cu, 2np), (63Cu, 2np), E=190-210 MeV; measured γ(θ, B) in polarized Fe. 78Kr levels deduced g. Enriched targets, transient field perturbed angular correlation technique.
doi: 10.1016/0375-9474(81)90394-8
1980AN02 Nucl.Phys. A334, 205 (1980) A.Anttila, S.Brandenburg, J.Keinonen, M.Bister Lifetimes of Low-Lying States in 19F NUCLEAR REACTIONS 15N(α, γ), E=1.68, 1.79, 1.84 MeV; measured Eγ, DSA. 19F levels deduced T1/2. Ge(Li) detector. Enriched, implanted targets.
doi: 10.1016/0375-9474(80)90064-0
1980AN07 Phys.Rev. C21, 1196 (1980) Analog E2 Transition in the A = 30 Nuclei; Lifetime and Branching Ratio Measurements of Levels in 30P NUCLEAR REACTIONS 29Si(p, γ), E=0.73, 1.75 MeV; measured σ(E; Eγ, θ), DSA. 30P levels deduced γ-branching ratios, T1/2. Implanted, enriched target. Shell model.
doi: 10.1103/PhysRevC.21.1196
1980KE03 Nucl.Phys. A341, 345 (1980) Hydrogen Burning of 24,25,26Mg in Explosive Carbon Burning NUCLEAR REACTIONS 24Mg(p, γ), E=0.82 MeV; 25Mg(p, γ), E=0.3-1.7 MeV; 26Mg(p, γ), E=0.3-2.1 MeV; measured σ(Ep), Ep, Iγ(θ). 25,26,27Al levels deduced γ-ray branching ratios, resonance strengths, Γ, astrophysical reaction rates. Ge(Li) detector. Natural, enriched targets.
doi: 10.1016/0375-9474(80)90317-6
1980KE05 Phys.Rev. C22, 351 (1980) J.Keinonen, H.-B.Mak, P.Skensved, J.R.Leslie, W.M.McLatchie Lifetime of the 1.04 MeV State in 18F NUCLEAR REACTIONS 18O(p, n), E=3.75 MeV; measured DSA. 18F level deduced T1/2. Implanted target.
doi: 10.1103/PhysRevC.22.351
1979AN16 Phys.Rev. C20, 920 (1979) A.Anttila, J.Keinonen, R.Hentela Lifetimes of Negative Parity States in 11C NUCLEAR REACTIONS 10B(p, γ), E=1.11 MeV; 7Li(α, γ), E=0.96 MeV; measured Eγ, Iγ(θ), DSA. 11C levels deduced T1/2, γ-branching. 11B levels deduced T1/2. Ge(Li) detector, enriched targets.
doi: 10.1103/PhysRevC.20.920
1979HE07 Phys.Lett. 85B, 34 (1979) H.P.Hellmeister, U.Kaup, J.Keinonen, K.P.Lieb, R.Rascher, R.Ballini, J.Delaunay, H.Dumont Band Structure of 78Kr NUCLEAR REACTIONS 65Cu(16O, 2np), E=42-58 MeV; measured Eγ, Iγ, γ(θ), γγ-coin, DSA. 78Kr deduced levels, J, π, T1/2, γ branching, B(E2). Neutron-proton boson model.
doi: 10.1016/0370-2693(79)90771-8
1979HE18 Nucl.Phys. A332, 241 (1979) H.P.Hellmeister, J.Keinonen, K.P.Lieb, U.Kaup, R.Rascher, R.Ballini, J.Delaunay, H.Dumont Study of High Spin States in 78Kr NUCLEAR REACTIONS 65Cu(16O, 2np), E=42-58 MeV; 65Cu(19F, 2nα), E=55 MeV; 64Ni(16O, 2n), E=47 MeV; 68Zn(12C, 2n), E=30-36 MeV; 65Cu(16O, 3n), E=54 MeV; measured Eγ, Iγ(θ), DSA, RDM. 78Kr deduced levels, J, π, T1/2. Enriched target.
doi: 10.1016/0375-9474(79)90107-6
1979KE08 Nucl.Phys. A330, 397 (1979) Gamma-Transition Strengths of T = 1 States in 10B NUCLEAR REACTIONS 6Li(α, γ), E=1.02, 1.09, 1.18 MeV; measured Eγ, Iγ(θ), Doppler shift attenuation. 10B levels deduced γ-ray branching ratios, δ(E2/M1), T1/2. Ge(Li) detector, enriched targets.
doi: 10.1016/0375-9474(79)90062-9
1979RI01 Nucl.Phys. A313, 251 (1979) M.Riihonen, J.Keinonen, A.Anttila Hydrogen Burning of 29,30Si in Explosive Carbon Burning NUCLEAR REACTIONS 28Si(p, γ), E=0.37, 1.38, 1.65, 2.09 MeV; 29,30Si(p, γ), E=0.50, 0.62, 0.78, 0.94, 0.98 MeV; measured σ(E), Iγ(θ). 29,30,31P resonances deduced γ-branchings, resonance strengths. Ge(Li) detector. Natural, enriched targets.
doi: 10.1016/0375-9474(79)90579-7
1978BI11 Nucl.Phys. A306, 189 (1978) M.Bister, A.Anttila, J.Keinonen Lifetime of Bound States in 22Na NUCLEAR REACTIONS 21Ne(p, γ), E=0.50, 0.70, 0.77, 0.81, 0.85, 1.09, 1.13, 1.28, 1.78 MeV; measured Eγ, Iγ, Doppler-shift attenuation. 22Na levels deduced γ-ray branching ratios, T1/2. Ge(Li) detectors, enriched targets.
doi: 10.1016/0375-9474(78)90322-6
1978HA53 Nucl.Instrum.Methods 150, 599 (1978) M.Hautala, A.Anttila, J.Keinonen Relative intensities of gamma-rays from 56Co standard source RADIOACTIVITY 56Co(EC) [from 56Fe(p, n)]; measured Eγ, Iγ. Comparison with previous results, use as standard discussed. NUCLEAR REACTIONS 14N(p, γ), E=278 keV; 32S(p, γ), E=588 keV; measured Eγ, Iγ. 15O, 33Cl deduced levels, branching ratios.
doi: 10.1016/0029-554X(78)90137-4
1978HE12 Phys.Scr. 17, 421 (1978) Angular Distribution Measurements of Gamma-Rays from Unbound T=1 States in 22Na NUCLEAR REACTIONS 21Ne(p, γ), E=0.70-1.84 MeV; measured Iγ(E, θ). 22Na levels, analog resonances deduced J, π, δ.
1978HE22 Fizika, Suppl. 10, 13 (1978) H.P.Hellmeister, J.Keinonen, K.P.Lieb, R.Rascher, R.Ballini, J.Delaunay, H.Dumont Band Structure of 78Kr NUCLEAR REACTIONS 65Cu(16O, 2np), E=42, 53, 54, 58 MeV; measured γγ-coin, γ(θ), σ(Eγ), DSA. 78Kr deduced levels, T1/2, J, π, band structure.
1978KE01 Phys.Rev. C17, 414 (1978) J.Keinonen, A.Anttila, R.Hentela 13C(p, γ)14N Study of the 9.13-MeV State in 14N NUCLEAR REACTIONS 13C(p, γ), E=1.70 MeV; measured σ(Eγ, θ). 14N deduced levels, J, π, γ-branching, δ.
doi: 10.1103/PhysRevC.17.414
1978KE03 Nucl.Phys. A294, 1 (1978) J.Keinonen, A.Anttila, M.Bister Lifetimes of the Unbound 41-, 51+ and 32+ States in 14N NUCLEAR REACTIONS 13C(p, γ), E=1.01, 1.52, 1.70 MeV; measured Eγ, Iγ, Doppler-shift attenuation. 14N levels deduced γ-ray branching ratios, T1/2. Ge(Li) detector, enriched targets.
doi: 10.1016/0375-9474(78)90390-1
1977AN17 J.Phys.(London) G3, 1241 (1977) A.Anttila, J.Keinonen, M.Bister The DSA Lifetime of the 2425 keV State in 21Na NUCLEAR REACTIONS 20Ne(p, γ), E ≈ 1.7 MeV; measured DSA. 21Na level deduced T1/2. Enriched targets, Ge(Li) detector.
doi: 10.1088/0305-4616/3/9/014
1977AN29 Nucl.Instrum.Methods 147, 501 (1977) A.Anttila, J.Keinonen, M.Hautala, I.Forsblom Use of the 27Al(p, γ)28Si, E = 992 keV Resonance as a Gamma-Ray Intensity Standard NUCLEAR REACTIONS 27Al(p, γ), E=760, 992, 1800 keV; measured σ(Eγ). 28Si deduced resonances, γ-branching. Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0387. 1977BI07 Phys.Rev. C16, 1303 (1977) M.Bister, A.Anttila, J.Keinonen Doppler-Shift Attenuation Lifetimes in 14N Derived from Experimental Stopping Parameters NUCLEAR REACTIONS 13C(p, γ), E=1.15 MeV; measured Eγ, DSA. 14N levels deduced T1/2, γ-branching, Γγ.
doi: 10.1103/PhysRevC.16.1303
1977KE04 Phys.Rev. C15, 579 (1977) J.Keinonen, M.Riihonen, A.Anttila Absolute Resonance Strengths in the 20,21,22Ne(p, γ)21,22,23Na and 21Ne(p, p1γ)21Ne Reactions NUCLEAR REACTIONS 21Ne(p, γ), (p, p'γ), E=0.5-2.0 MeV; measured σ(E, Eγ, θ). 20Ne(p, γ), E=1.2 MeV; 22Ne(p, γ), E=1.3 MeV; measured σ(Eγ). 21,22,23Na deduced resonances, strengths, Γ. Enriched targets.
doi: 10.1103/PhysRevC.15.579
1977KE13 Z.Phys. A282, 227 (1977) J.Keinonen, K.P.Lieb, H.P.Hellmeister, F.J.Bergmeister Lifetimes of High-Spin Levels in 39Ar NUCLEAR REACTIONS 25Mg(16O, 2pγ), 26Mg(18O, nαγ), E ≈ 45, 55 MeV; measured recoil distance DSA. 39Ar levels deduced T1/2, B(λ).
doi: 10.1007/BF01408167
1977KE15 Nucl.Phys. A286, 505 (1977) J.Keinonen, M.Bister, A.Antilla Lifetimes of Bound States in 15O NUCLEAR REACTIONS 14N(p, γ), E=1.74, 2.35 MeV; measured Eγ, Doppler-shift attenuation. 15O levels deduced T1/2. Ge(Li) detector, enriched targets.
doi: 10.1016/0375-9474(77)90599-1
1977RI14 Nucl.Instrum.Methods 144, 323 (1977) Measurements of Absolute Resonance Strengths in (p, γ) Reactions on Rare or Gaseous Nuclei NUCLEAR REACTIONS 20,21,22Ne, 54,56,57,58Fe(n, γ); measured yields. 55,57,58,59Co deduced resonance strength.
doi: 10.1016/0029-554X(77)90124-0
1976KE02 Phys.Rev. C14, 160 (1976) J.Keinonen, R.Rascher, M.Uhrmacher, N.Wust, K.P.Lieb M2 Transitions between the 1f7/2 and the 1d3/2 Orbit NUCLEAR REACTIONS 25Mg, 27Al(16O, X), E=30-50 MeV; measured Eγ, recoil distance DSA. 36Cl levels deduced γ-branching. 35,36Cl, 40K, 41Ca levels deduced T1/2. M2 transition systematics 33 ≤ A ≤ 47.
doi: 10.1103/PhysRevC.14.160
1976KE08 Soc.Sci.Fenn., Comment.Phys.-Math. 46, 61 (1976) The Standard Resonance Strength in the 27Al(p, γ)28Si Reaction NUCLEAR REACTIONS, ICPND 27Al(p, γ), E=633, 992 keV; measured thick target γ yield. 28Si levels deduced resonance strength.
1976RI11 J.Inorg.Nucl.Chem. 38, 1927 (1976) R.Rieppo, J.K.Keinonen, M.Valkonen Activation Cross-Sections for 14.7 MeV Neutrons on Natural Germanium NUCLEAR REACTIONS 70Ge(n, 2n), 72,73,74Ge(n, p), E=14.7 MeV; measured activation σ. Natural target.
doi: 10.1016/0022-1902(76)80439-3
1975AN09 Nucl.Instr.Methods 124, 605 (1975) A.Anttila, J.Keinonen, M.Bister DSA Measurements with Two-Target Arrangement NUCLEAR REACTIONS 27Al(p, γ), E=1364 keV; measured DSA. 28Si levels deduced T1/2.
1975AN14 Z.Phys. A274, 227 (1975) A.Anttila, M.Bister, J.Keinonen DSA Lifetimes in 21Na and 23Na Derived from Experimental Stopping Parameters NUCLEAR REACTIONS 20,22Ne(p, γ), E < 2 MeV; measured DSA; deduced stopping parameters. 21,23Na levels deduced T1/2, transition strengths.
doi: 10.1007/BF01437734
1975BI16 Phys.Lett. 53A, 471 (1975) M.Bister, A.Anttila, J.Keinonen A Method for Determination of Nuclear and Electronic Stopping Power Parameters NUCLEAR REACTIONS 27Al(p, γ), E=2.49 MeV; measured γ-spectra, Doppler broadening; deduced nuclear, electronic stopping power. 28Si level deduced T1/2.
doi: 10.1016/0375-9601(75)90672-6
1975KE01 J.Phys.(London) G1, 53 (1975) J.Keinonen, M.Bister, A.Anttila On the Configuration of the 10.22 MeV Analogue Level in 37Cl NUCLEAR REACTIONS 36S(p, p), E approx 1.89 MeV; measured σ(E, θ). 37Cl resonance deduced J, π, T, p-width, γ-width.
doi: 10.1088/0305-4616/1/1/007
1975KE11 Phys.Scr. 12, 280 (1975) J.Keinonen, M.Riihonen, A.Anttila Strengths of Analogue Resonances in (p, γ) Reactions on Sulphur Isotopes NUCLEAR REACTIONS 32S(p, γ), E=588 keV; 34S(p, γ), E=1214 keV; 33S(p, γ), E=1542 keV; 36S(p, γ), E=1887 keV; measured σ(E, Eγ). 33,34,35,37Cl resonances deduced strengths, Γ.
doi: 10.1088/0031-8949/12/5/005
1974BI16 Phys.Fenn. 9, 23 (1974) M.Bister, A.Anttila, J.Keinonen, B.Fant Isobaric Analog Resonances in 35Cl NUCLEAR REACTIONS 34S(p, p), (p, γ), E=1.21, 1.51, 1.90, 2.07 MeV; measured σ(E, θ), σ(E, Eγ, θ). 35Cl deduced analog resonances, p-width, J, π.
1974HO10 J.Inorg.Nucl.Chem. 36, 715 (1974) P.Holmberg, R.Rieppo, J.K.Keinonen, M.Valkonen Activation Cross-Sections for 14.7 MeV Neutrons on Chromium NUCLEAR REACTIONS 50Cr(n, 2n), 52,53,54Cr(n, p), 54Cr(n, α), E=14.7 MeV; measured yields, deduced σ.
doi: 10.1016/0022-1902(74)80798-0
1974KE10 Z.Phys. 268, 313 (1974) Widths of the 7.74 MeV Analogue State in 39K NUCLEAR REACTIONS 38Ar(p, p), (p, γ), E=1390, 1397 keV; measured σ(E, θ), Eγ, Iγ. 39K deduced levels, J, π, level-width, p-width, γ branching ratios.
doi: 10.1007/BF01669467
1974KE14 Z.Phys. 270, 129 (1974) J.Keinonen, A.Anttila, M.Bister On the Gamma Decay of Analogue Resonances in the 58Fe(p, γ)59Co Reaction NUCLEAR REACTIONS 58Fe(p, γ), E=2.20-2.25 MeV; measured Eγ, Iγ, DSA; deduced Q, ft. 59Co deduced levels, resonances, T1/2, γ-branching ratios.
doi: 10.1007/BF01677444
1973FA07 Z.Phys. 260, 185 (1973) B.Fant, J.Keinonen, A.Anttila, M.Bister Investigation of Gamma Ray Transitions and Lifetimes in 35Cl NUCLEAR REACTIONS 34S(p, γ), E=1-2 MeV; measured Eγ, Iγ, DSA. Deduced Q. 35Cl deduced levels, T1/2, resonances, γ-branching.
doi: 10.1007/BF01395979
Back to query form Note: The following list of authors and aliases matches the search parameter J.Keinonen: , J.K.KEINONEN |