NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = F.Ingebretsen Found 55 matches. 2009SY01 Phys.Rev. C 79, 024316 (2009) N.U.H.Syed, M.Guttormsen, F.Ingebretsen, A.C.Larsen, T.Lonnroth, J.Rekstad, A.Schiller, S.Siem, A.Voinov Level density and γ-decay properties of closed shell Pb nuclei NUCLEAR REACTIONS 206,208Pb(3He, 3He'γ), (3He, αγ), E=38 MeV; measured Eγ, Iγ, (particle)γ-coin; deduced spin distributions, level densities, entropies, temperature, γ-ray strength functions. Comparison of E1 and M1 strengths with Standard Lorentzian and enhanced generalized Lorentzian models.
doi: 10.1103/PhysRevC.79.024316
2007LA23 Acta Phys.Pol. B38, 1495 (2007) A.C.Larsen, M.Guttormsen, R.Chankova, F.Ingebretsen, T.Lonnroth, S.Messelt, S.W.Odegard, J.Rekstad, S.Siem, N.U.H.Syed, A.Schiller, A.Voinov Radiative Strength Functions of Warm Nuclei in the 1f7/2 Shell NUCLEAR REACTIONS 51V, 45Sc(3He, αγ), (3He, 3He'γ), E=30, 38 MeV; measured Eγ, Eα, E(3He), (particle)γ-coinc. 50,51V, 44,45Sc deduced level densities and giant resonance strength functions.
2007LA31 Phys.Rev. C 76, 044303 (2007) A.C.Larsen, M.Guttormsen, R.Chankova, F.Ingebretsen, T.Lonnroth, S.Messelt, J.Rekstad, A.Schiller, S.Siem, N.U.H.Syed, A.Voinov Nuclear level densities and γ-ray strength functions in 44, 45Sc NUCLEAR REACTIONS 45Sc(3He, αγ), (3He, 3He'γ), E=38 MeV; measured Eγ, Iγ. 44Sc, 45Sc; deduced level densities, γ-strength functions, parity asymmetry.
doi: 10.1103/PhysRevC.76.044303
2006CH14 Phys.Rev. C 73, 034311 (2006) R.Chankova, A.Schiller, U.Agvaanluvsan, E.Algin, L.A.Bernstein, M.Guttormsen, F.Ingebretsen, T.Lonnroth, S.Messelt, G.E.Mitchell, J.Rekstad, S.Siem, A.C.Larsen, A.Voinov, S.Odegard Level densities and thermodynamical quantities of heated 93-98Mo isotopes NUCLEAR REACTIONS 94,96Mo(3He, 3He'), (3He, α), E=30 MeV; 98Mo(3He, 3He'), (3He, α), E=45 MeV; measured particle spectra, Eγ, Iγ, (particle)γ-coin. 93,94,95,96,97,98Mo deduced level densities; deduced thermodynamical quantities, phase transition features.
doi: 10.1103/PhysRevC.73.034311
2006LA12 Phys.Rev. C 73, 064301 (2006) A.C.Larsen, R.Chankova, M.Guttormsen, F.Ingebretsen, S.Messelt, J.Rekstad, S.Siem, N.U.H.Syed, S.W.Odegard, T.Lonnroth, A.Schiller, A.Voinov Microcanonical entropies and radiative strength functions of 50, 51V NUCLEAR REACTIONS 51V(3He, 3He'), (3He, α), E=30 MeV; measured Eγ, Iγ, (particle)γ-coin. 50,51V deduced level densities, radiative strength functions.
doi: 10.1103/PhysRevC.73.064301
2005GU16 Phys.Rev. C 71, 044307 (2005) M.Guttormsen, R.Chankova, U.Agvaanluvsan, E.Algin, L.A.Bernstein, F.Ingebretsen, T.Lonnroth, S.Messelt, G.E.Mitchell, J.Rekstad, A.Schiller, S.Siem, A.C.Sunde, A.Voinov, S.Odegard Radiative strength functions in 93-98Mo NUCLEAR REACTIONS 94,96Mo(3He, 3He'), (3He, α), E=30 MeV; 97,98Mo(3He, 3He'), (3He, α), E=45 MeV; measured particle spectra, Eγ, Iγ, (particle)γ-coin. 93,94,95,96,97,98Mo deduced radiative strength functions.
doi: 10.1103/PhysRevC.71.044307
2005SU07 Acta Phys.Pol. B36, 1197 (2005) A.C.Sunde, M.Guttormsen, R.Chankova, F.Ingebretsen, T.Lonnroth, S.Messelt, J.Rekstad, A.Schiller, S.Siem, N.U.H.Syed, A.Voinov, S.W.Odegard Thermal and electromagnetic properties of the light vanadium isotopes 50, 51V NUCLEAR REACTIONS 51V(3He, 3He'), (3He, α), E not given; measured Eγ, Iγ. 50,51V deduced radiative strength functions, thermodynamic properties.
2001SC02 Phys.Rev. C63, 021306 (2001) A.Schiller, A.Bjerve, M.Guttormsen, M.Hjorth-Jensen, F.Ingebretsen, E.Melby, S.Messelt, J.Rekstad, S.Siem, S.W.Odegard Critical Temperature for Quenching of Pair Correlations NUCLEAR REACTIONS 162,163Dy, 172,173Yb(3He, X), E=45 MeV; measured Eα, Eγ, αγ-coin. 161,162Dy, 171,172Yb deduced level density and heat capacity vs excitation energy, critical temperature for phase-transition.
doi: 10.1103/PhysRevC.63.021306
2000ME25 Phys.Scr. T88, 138 (2000) E.Melby, L.Bergholt, M.Guttormsen, M.Hjorth-Jensen, F.Ingebretsen, S.Messelt, J.Rekstad, A.Schiller, S.Siem, S.W.Odegard Experimental Temperature and Heat Capacity in Rare Earth Nuclei NUCLEAR REACTIONS 163Dy, 167Er, 173Yb(3He, α), E=45 MeV; measured Eγ, Iγ, αγ-coin. 162Dy, 166Er, 172Yb deduced level densities, temperature vs excitation energy, heat capacities.
doi: 10.1238/Physica.Topical.088a00138
1999BA84 Nucl.Phys. A657, 113 (1999) R.A.Bark, S.Tormanen, T.Back, B.Cederwall, S.W.Odegard, J.F.C.Cocks, K.Helariutta, P.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, H.Kettunen, P.Kuusiniemi, M.Leino, M.Muikku, P.Rahkila, A.Savelius, M.Bergstrom, F.Ingebretsen, A.Maj, M.Mattiuzzi, W.Mueller, L.L.Riedinger, T.Saitoh, P.O.Tjom Coexistence of Triaxial and Prolate Shapes in 171Ir NUCLEAR REACTIONS 116Sn(58Ni, 2np), E=260, 267 MeV; measured Eγ, Iγ, (recoil)γ-, γγ-coin. 171Ir deduced high-spin levels, J, π, rotational band structure, configurations, triaxiality, shaped-coexistance, band mixing. Cranked mean-field calculations, potential energy surfaces, tilted-axis cranking.
doi: 10.1016/S0375-9474(99)00319-X
1999ME23 Phys.Rev.Lett. 83, 3150 (1999) E.Melby, L.Bergholt, M.Guttormsen, M.Hjorth-Jensen, F.Ingebretsen, S.Messelt, J.Rekstad, A.Schiller, S.Siem, S.W.Odegard Observation of Thermodynamical Properties in the 162Dy, 166Er, and 172Yb Nuclei NUCLEAR REACTIONS 163Dy, 167Er, 173Yb(3He, α), E=45 MeV; measured Eγ, Iγ, αγ-coin. 162Dy, 166Er, 172Yb deduced level densities, heat capacities, related thermodynamic properties.
doi: 10.1103/PhysRevLett.83.3150
1998BA20 Nucl.Phys. A630, 603 (1998) R.A.Bark, H.Carlsson, S.J.Freeman, G.B.Hagemann, F.Ingebretsen, H.J.Jensen, T.Lonnroth, M.J.Piiparinen, I.Ragnarsson, H.Ryde, H.Schnack-Petersen, P.B.Semmes, P.O.Tjom Band Structures and Proton-Neutron Interactions in 174Ta NUCLEAR REACTIONS 160Gd(19F, 5n), E=103, 105 MeV; measured Eγ, Iγ, γγ-coin. 174Ta deduced high-spin levels, J, π, rotational band structure, configurations, Nilsson assignments, alignments, B(M1)/B(E2) ratios, signature inversion, proton-neutron interactions, crossing frequencies.
doi: 10.1016/S0375-9474(97)00650-7
1998BB02 Nucl.Phys. A644, 29 (1998) R.A.Bark, H.Carlsson, S.J.Freeman, G.B.Hagemann, F.Ingebretsen, H.J.Jensen, T.Lonnroth, S.Mitarai, M.J.Piiparinen, H.Ryde, H.Schnack-Petersen, P.O.Tjom High-Spin States in 171Lu NUCLEAR REACTIONS 160Gd(19F, 4nα), E=103, 105 MeV; measured Eγ, Iγ, γγ-, αγ-coin. 171Lu deduced high-spin levels, J, π, rotational band structure, configurations, alignments, B(M1)/B(E2) ratios, B(E1). Signature inversion, crossing frequencies.
doi: 10.1016/S0375-9474(98)00583-1
1996GU24 Nucl.Instrum.Methods Phys.Res. A374, 371 (1996) M.Guttormsen, T.S.Tveter, L.Bergholt, F.Ingebretsen, J.Rekstad The Unfolding of Continuum γ-Ray Spectra NUCLEAR REACTIONS 163Dy(3He, αγ), E=45 MeV; analyzed Eγ, Iγ. New γ-spectra unfolding method based on Compton scattering contributions' weak dependence on energy. RADIOACTIVITY 152Eu(EC), (β+), (β-); analyzed Eγ, Iγ. New γ-spectra unfolding method based on Compton scattering contributions' weak dependence on energy.
doi: 10.1016/0168-9002(96)00197-0
1995BA51 Phys.Rev. C52, R450 (1995) R.A.Bark, S.W.Odegard, R.Bengtsson, I.G.Bearden, G.B.Hagemann, B.Herskind, F.Ingebretsen, S.Leoni, H.Ryde, T.Shizuma, K.Strahle, P.O.Tjom, J.Wrzesinski Intruder Bands Extended in 175Re and 177Ir: Deformation Changes and Interaction at the Alignment of i13/2 Neutrons NUCLEAR REACTIONS 161Dy(19F, 5n), E=106 MeV; 146Nd(35Cl, 4n), E=166 MeV; measured γγ-coin. 175Re, 177Ir deduced high-spin levels, J, π, configuration, band structure, deformation features.
doi: 10.1103/PhysRevC.52.R450
1995BA67 Nucl.Phys. A591, 265 (1995) R.A.Bark, G.B.Hagemann, B.Herskind, H.J.Jensen, W.Korten, J.Wrzesinski, H.Carlsson, M.Bergstrom, A.Brockstedt, A.Nordlund, H.Ryde, P.Bosetti, S.Leoni, F.Ingebretsen, P.O.Tjom More than Thirty Bands in 177Re NUCLEAR REACTIONS 130Te(51V, 4n), E=225 MeV; 163Dy(19F, 5n), E=105 MeV; measured Eγ, γγ-coin, Iγ. 177Re deduced high-spin levels, J, π, configurations, rotational bands, B(M1)/B(E2) ratios, g(K) values, alignments, band structure. Crossing frequencies, cranked shell model, band-mixing, Nilsson-Strutinsky potential energy surfaces, shape coexistence.
doi: 10.1016/0375-9474(95)00187-6
1995CA27 Nucl.Phys. A592, 89 (1995) H.Carlsson, R.A.Bark, L.P.Ekstrom, A.Nordlund, H.Ryde, G.B.Hagemann, S.J.Freeman, H.J.Jensen, T.Lonnroth, M.J.Piiparinen, H.Schnack-Petersen, F.Ingebretsen, P.O.Tjom Electromagnetic Properties and High-Spin States in 173Ta NUCLEAR REACTIONS 160Gd(19F, 6n), E=103, 105 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ). 173Ta deduced high-spin levels, J, π rotational band structure, configurations, alignments, B(M1)/B(E2) ratios, B(E1) values. Enriched target, array of Compton-suppressed Ge detectors.
doi: 10.1016/0375-9474(95)00210-R
1995LE20 Nucl.Phys. A587, 513 (1995) S.Leoni, B.Herskind, T.Dossing, P.Rasmussen, P.Bosetti, A.Bracco, S.Frattini, M.Matsuo, N.Nica, E.Vigezzi, A.Atac, M.Bergstrom, A.Brockstedt, H.Carlsson, P.Ekstrom, F.Ingebretsen, H.J.Jensen, J.Jongman, G.B.Hagemann, R.M.Lieder, T.Lonnroth, A.Maj, B.Million, A.Nordlund, J.Nyberg, M.Piiparinen, H.Ryde, D.C.Radford, M.Sugawara, P.O.Tjom, A.Virtanen The Distribution of the Rotational Transition Strength in Warm Nuclei Studied through γ-Ray Correlations NUCLEAR REACTIONS 130Te(37Cl, 5n), (37Cl, 4n), E=166 MeV; measured γγγ-coin, γ-multiplicity. 162,163Tm deduced rotational motion damping, transition strength.
doi: 10.1016/0375-9474(95)00024-U
1995LE31 Phys.Lett. 353B, 179 (1995) S.Leoni, B.Herskind, T.Dossing, K.Yoshida, M.Matsuo, A.Atac, G.B.Hagemann, F.Ingebretsen, H.J.Jensen, R.M.Lieder, G.V.Marti, N.Nica, J.Nyberg, M.Piiparinen, H.Schnare, G.Sletten, K.Strahle, M.Sugawara, P.O.Tjom, A.Virtanen A Finite Number of Regular Rotational Bands in the Superdeformed Well of 143Eu NUCLEAR REACTIONS 110Pd(37Cl, 4n), E=160 MeV; measured (Eγ-Eγ)-coin, Eγ, Iγ. 143Eu deduced superdeformed bands. Fluctuation analysis model.
doi: 10.1016/0370-2693(95)00549-Z
1995SC39 Nucl.Phys. A594, 175 (1995) H.Schnack-Petersen, R.Bengtsson, R.A.Bark, P.Bosetti, A.Brockstedt, H.Carlsson, L.P.Ekstrom, G.B.Hagemann, B.Herskind, F.Ingebretsen, H.J.Jensen, S.Leoni, A.Nordlund, H.Ryde, P.O.Tjom, C.X.Yang Superdeformed Triaxial Bands in 163,165Lu NUCLEAR REACTIONS 138Ba(31P, 4n), E=155 MeV; 150Sm(19F, 4n), E=95 MeV; measured Eγ, γγ-coin, Iγ. 165Lu deduced high-spin levels, J, π, rotational band, superdeformed structure. Enriched target, array of Compton suppressed Ge-detectors. Calculation of superdeformed highly triaxial local minima in configuration separated total energy surfaces.
doi: 10.1016/0375-9474(95)00363-6
1994GU04 Nucl.Phys. A573, 130 (1994) M.Guttormsen, L.Bergholt, F.Ingebretsen, G.Lovhoiden, S.Messelt, J.Rekstad, T.S.Tveter, H.Helstrup, T.F.Thorsteinsen The (3He, α) Reaction Mechanism: A study of the angular momentum transfer NUCLEAR REACTIONS 163Dy(3He, αxn), E=45 MeV; measured σ(Eα), Eγ, Iγ, αγ-coin. 162,160,158Dy deduced γ-ray side-feeding into ground-band states. Enriched target, Ge, Na, Si detectors.
doi: 10.1016/0375-9474(94)90017-5
1994PA30 Nucl.Phys. A578, 225 (1994) M.Palacz, Z.Sujkowski, A.Atac, M.Piiparinen, B.Herskind, J.Nyberg, G.Sletten, G.de Angelis, S.Forbes, N.Gjorup, G.Hagemann, F.Ingebretsen, H.Jensen, D.Jerrestam, H.Kusakari, R.Lieder, G.M.Marti, S.Mullins, D.Santonocito, H.Schnare, K.Strahle, M.Sugawara, P.O.Tjom, A.Virtanen, R.Wadsworth Highly Converted Transitions in the Quasi-Continuum of 143Eu NUCLEAR REACTIONS 110Pd(37Cl, 4n), E=160 MeV; measured γ-, X-ray spectra, γ(X-ray)-coin, X-ray yields. 143Eu deduced quasi-continuum X-ray multiplicity.
doi: 10.1016/0375-9474(94)90977-6
1993AT01 Phys.Rev.Lett. 70, 1069 (1993) A.Atac, M.Piiparinen, B.Herskind, J.Nyberg, G.Sletten, G.de Angelis, S.Forbes, N.Gjorup, G.Hagemann, F.Ingebretsen, H.Jensen, D.Jerrestam, H.Kusakari, R.M.Lieder, G.V.Marti, S.Mullins, D.Santonocito, H.Schnare, K.Strahle, M.Sugawara, P.O.Tjom, A.Virtanen, R.Wadsworth Linking Transitions from the Superdeformed Band in 143Eu NUCLEAR REACTIONS 110Pd(37Cl, 4n), E=160 MeV; measured γγγ-, higher fold-coin, Eγ, Iγ. 143Eu deduced levels, J, π, Iγ, normal deformed superdeformed states connection.
doi: 10.1103/PhysRevLett.70.1069
1993AT02 Acta Phys.Pol. B24, 395 (1993) A.Atac, M.Piiparinen, B.Herskind, J.Nyberg, G.Sletten, G.de Angelis, S.Forbes, N.Gjorup, G.Hagemann, F.Ingebretsen, H.Jensen, D.Jerrestam, H.Kusakari, R.Lieder, G.M.Marti, S.Mullins, D.Santonocito, H.Schnare, K.Strahle, M.Sugawara, P.O.Tjom, A.Virtanen, R.Wadsworth Superdeformed Band in the 143Eu Nucleus: Study of the decay out NUCLEAR REACTIONS 110Pd(37Cl, 4n), E=160 MeV; measured γγ-coin sum spectra. 143Eu deduced superdeformed band decay features.
1993AT03 Nucl.Phys. A557, 109c (1993) A.Atac, M.Piiparinen, B.Herskind, J.Nyberg, G.Sletten, G.de Angelis, R.M.Clark, S.A.Forbes, N.Gjorup, G.B.Hagemann, F.Ingebretsen, H.J.Jensen, D.Jerrestam, H.Kusakari, R.M.Lieder, G.V.Marti, S.Mullins, P.J.Nolan, E.S.Paul, P.H.Regan, D.Santonocito, H.Schnare, K.Strahle, M.Sugawara, P.O.Tjom, A.Virtanen, R.Wadsworth Observation of the Decay Out of the Superdeformed Band in 143Eu NUCLEAR REACTIONS 110Pd(37Cl, 4n), E=160 MeV; measured γγ-coin, Eγ, Iγ. 143Eu deduced levels, J, π, superdeformed band decay features.
doi: 10.1016/0375-9474(93)90535-6
1993PA05 Acta Phys.Pol. B24, 399 (1993) M.Palacz, Z.Sujkowski, J.Bacelar, A.Atac, B.Herskind, J.Nyberg, M.Piiparinen, G.de Angelis, S.Forbes, N.Gjorup, G.Hagemann, F.Ingebretsen, H.Jensen, D.Jerrestam, H.Kusakari, R.Lieder, G.M.Marti, S.Mullins, D.Santonocito, H.Schnare, G.Sletten, K.Strahle, M.Sugawara, P.O.Tjom, A.Virtanen, R.Wadsworth E0 Transitions and the Depopulation of SD Bands NUCLEAR STRUCTURE 132Ce, 143Eu, 152Dy, 192Hg; calculated transition probability vs excitation energy for superdeformed states. 143Eu; analyzed γ(K X-ray)-coin following superdeformed states decay.
1992PI18 Z.Phys. A343, 367 (1992) M.Piiparinen, A.Atac, G.de Angelis, S.Forbes, N.Gjorup, G.Hagemann, B.Herskind, F.Ingebretsen, H.Jensen, D.Jerrestam, H.Kusakari, R.Lieder, G.M.Marti, S.Mullins, J.Nyberg, D.Santonocito, H.Schnare, G.Sletten, K.Strahle, M.Sugawara, P.O.Tjom, A.Virtanen, R.Wadsworth High Spin Level Structure of 14363Eu80 NUCLEAR REACTIONS 110Pd(37Cl, 4n), E=160 MeV; measured γγ-coin. 143Eu deduced levels, J, π, stretched E2 transitions.
doi: 10.1007/BF01291538
1991JE04 Z.Phys. A340, 351 (1991) H.J.Jensen, G.B.Hagemann, P.O.Tjom, S.Frauendorf, A.Atac, M.Bergstrom, A.Bracco, A.Brockstedt, H.Carlsson, P.Ekstrom, J.M.Espino, B.Herskind, F.Ingebretsen, J.Jongman, S.Leoni, R.M.Lieder, T.Lonnroth, A.Maj, B.Million, A.Nordlund, J.Nyberg, M.Piiparinen, H.Ryde, M.Sugawara, A.Virtanen Interaction Strength and Shape Difference for the h9/2 and h11/2 Configurations in 163Tm NUCLEAR REACTIONS 148Nd(19F, 4n), E=85 MeV; 130Te(37Cl, 4n), E=166 MeV; measured γ-spectra, multiplicities, γγ-coin. 163Tm deduced levels, J, π, configuration, B(λ). Model comparisons.
doi: 10.1007/BF01290322
1987RE09 Nucl.Phys. A470, 397 (1987) J.Rekstad, A.Atac, M.Guttormsen, T.Ramsoy, J.B.Olsen, F.Ingebretsen, T.F.Thorsteinsen, G.Lovhoiden, T.Rodland Reaction Dependence and Cross Structure of the γ-Decay of Highly Excited States in the Rare Earth Nucleus 162Dy NUCLEAR REACTIONS 163Dy(3He, α), 162Dy(3He, 3He'), E=45 MeV; measured γ(particle)-coin. 162Dy deduced yrast-transition characsteristics.
doi: 10.1016/0375-9474(87)90009-1
1986GU03 Phys.Scr. 33, 385 (1986) M.Guttormsen, A.Atac, F.Ingebretsen, S.Messelt, J.B.Olsen, T.Ramsoy, J.Rekstad, L.A.Ronning, G.Lovhoiden, T.Rodland, T.F.Thorsteinsen Statistical γ-Decay in s-d Shell Nuclei NUCLEAR REACTIONS 27Al(3He, α), (3He, 3He'), (3He, t), E=45 MeV; measured σ(Eα), σ(E(3He')), σ(Et), γ(particle)-coin. 26,27Al, 27Si deduced γ-multiplicity. Fermi gas model.
doi: 10.1088/0031-8949/33/5/001
1986RE18 Phys.Scr. 34, 644 (1986) J.Rekstad, M.Guttormsen, A.Atac, F.Ingebretsen, S.Messelt, T.Ramsoy, T.F.Thorsteinsen, G.Lovhoiden, T.Rodland Structure and Decay Properties of Low-Spin States at High Excitation Energy NUCLEAR REACTIONS 161,163Dy(d, t), E=15 MeV; measured σ(Et), Eγ, Iγ, γγ-coin. 160,162Dy deduced levels, decay characteristics. Other data input, ΔE-E telescopes, Ge, NaI detectors.
doi: 10.1088/0031-8949/34/6A/020
1985RA07 Nucl.Phys. A438, 301 (1985) T.Ramsoy, J.Rekstad, M.Guttormsen, A.Henriquez, F.Ingebretsen, T.Rodland, T.F.Thorsteinsen, G.Lovhoiden γ-Decay from Two-Quasiparticle States Populated in the 161,163Dy(d, t) Reactions NUCLEAR REACTIONS 161,163Dy(d, t), E=15 MeV; measured σ(E(t)), Eγ, Iγ, γ(t). 160,162Dy deduced levels, J, π, γ-multiplicity. Enriched targets.
doi: 10.1016/0375-9474(85)90377-X
1984GU01 Phys.Rev.Lett. 52, 102 (1984) M.Guttormsen, J.Rekstad, A.Henriquez, F.Ingebretsen, T.F.Thorsteinsen Nonstatistical Cooling of the Highly Excited 161Dy Nucleus NUCLEAR REACTIONS 162Dy(3He, α), E=26 MeV; measured Eα, αγ-coin, Eγ. 161Dy deduced enhanced single-quasiparticle transitions, possible unstretched M1 transitions, statistical cooling competition.
doi: 10.1103/PhysRevLett.52.102
1984RA03 Nucl.Phys. A414, 269 (1984) T.Ramsoy, J.Rekstad, A.Henriquez, F.Ingebretsen, M.Guttormsen, E.Hammaren, T.F.Thorsteinsen Deep-Lying νh11/2 Hole States in 145Nd NUCLEAR REACTIONS 146Nd(3He, α), E=26 MeV; measured σ(Eγ, θ), Eγ, Iγ, γα-coin. 145Nd deduced levels, γ-ray multiplicity, level density, spectroscopic strength. Enriched target, Ge(Li), NaI(Tl), Si detectors. Fermi gas model analysis.
doi: 10.1016/0375-9474(84)90644-4
1984RE04 Nucl.Phys. A417, 376 (1984) J.Rekstad, B.Nordmoen, A.Henriques, F.Ingebretsen, S.Messelt, T.F.Thorsteinsen, E.Hammaren The (3He, α) Strength Functions in Rare-Earth Nuclei NUCLEAR REACTIONS 156,157Gd, 171Yb(3He, α), E=26 MeV; measured σ(Eα, θ), αγ-coin. 155,156Gd, 170Yb levels deduced L, J, π, S. Enriched targets. DWBA calculations. Comparison to particle-plus-rotor model.
doi: 10.1016/0375-9474(84)90403-2
1983AA01 Phys.Rev. C28, 1857 (1983) R.M.Aasen, J.Rekstad, A.Henriquez, F.Ingebretsen, M.Guttormsen, T.Engeland Gamma-Ray Energy Dependence of Transition Probabilities in the Continuum NUCLEAR REACTIONS 149Sm(3He, α), E=26 MeV; measured σ(E(α)), γα-coin. 148Sm deduced γ-ray multiplicity. Enriched target, Ge(Li), NaI(Tl), Si detectors. Fermi gas model analysis.
doi: 10.1103/PhysRevC.28.1857
1983HE19 Phys.Lett. 130B, 171 (1983) A.Henriquez, J.Rekstad, F.Ingebretsen, M.Guttormsen, K.Eldhuset, B.Nordmoen, T.Ramsoy, R.Renstrom-Pedersen, R.M.Aasen The Decay from the Two-Quasiparticle Regime in Even-Even Deformed Rare Earth Nuclei NUCLEAR REACTIONS 171Yb, 161Dy(3He, α), E=26 MeV; measured Eγ, Iγ, αγ-coin, αγ(θ). 170Yb, 160Dy deduced ground state band transition, dipole character, initial, final state configurations. Two-quasiparticle scheme.
doi: 10.1016/0370-2693(83)91035-3
1983RE09 Phys.Scr. T5, 45 (1983) J.Rekstad, A.Henriquez, F.Ingebretsen, G.Midttun, B.Skaali, R.Oyan, J.Wikne, T.Engeland, T.G.Thorsteinsen, E.Hammaren, E.Liukkonen A Study of the Nuclear Structure at High Energy and Low Spin NUCLEAR REACTIONS 147,149Sm, 155,157Gd, 161,163Dy(3He, α), E=26 MeV; measured Eα, Iα, γα-coin, γ-multiplicity spectra; deduced structure change in deformed nuclei. 146,148Sm, 156Gd, 160,162Dy deduced < Eγ > vs excitation energy. 154Gd deduced < Eγ > vs excitation energy, γ-transition relative intensities.
doi: 10.1088/0031-8949/1983/T5/007
1982HA27 Phys.Rev. C25, 3224 (1982) G.B.Hagemann, J.D.Garrett, B.Herskind, G.Sletten, P.O.Tjom, A.Henriquez, F.Ingebretsen, J.Rekstad, G.Lovhoiden, T.F.Thorsteinsen Evidence for Signature-Dependent Transition Rates at Large Rotational Frequencies NUCLEAR REACTIONS 146Nd(15N, 4n), E=74 MeV; measured Iγ(θ), γγ-coin. 157Ho deduced levels, J, π, δ, branching ratios, (g(k)-g(R)), shape change.
doi: 10.1103/PhysRevC.25.3224
1982RE16 Phys.Lett. 117B, 384 (1982) J.Rekstad, A.Henriquez, F.Ingebretsen, G.Midttun, B.Skaali, R.Oyan, R.Haugland, S.Messelt, T.F.Thorsteinsen, G.Lovhoiden, L.P.Ekstrom The Variation in γ-Ray Multiplicity with Nuclear Temperature Studied in 160Dy NUCLEAR REACTIONS 161Dy(3He, α), E=26 MeV; measured σ(Eα), αγ-coin, γ multiplicity. 160Dy deduced level density parameter.
doi: 10.1016/0370-2693(82)90564-0
1980GU07 Nucl.Phys. A338, 141 (1980) M.Guttormsen, T.Pedersen, J.Rekstad, T.Engeland, E.Osnes, F.Ingebretsen The Particle-Rotor Model with Pairing in the s-d Shell. An Analysis Of the 23Na Nucleus NUCLEAR STRUCTURE 23Na; calculated stripping, pickup S, levels, T1/2, B(λ). Particle-rotor model, pairing effects.
doi: 10.1016/0375-9474(80)90126-8
1977EL04 Nucl.Phys. A283, 12 (1977) F.A.El-Akad, S.Backe, T.Holtebekk, F.Ingebretsen, J.Rekstad Mean Lives of Excited States in 28Al NUCLEAR REACTIONS 27Al(d, pγ), E=2.4 MeV; measured σ(Ep, Eγ), Doppler shift attenuation. 28Al levels deduced T1/2, J, π, T.
doi: 10.1016/0375-9474(77)90695-9
1972BA04 Nucl.Phys. A180, 517 (1972) G.C.Ball, J.S.Forster, F.Ingebretsen, C.F.Monahan Lifetimes in 43Sc NUCLEAR REACTIONS 40Ca(α, pγ), E=7-12 MeV; measured σ(Eγ, θ(γ)), Doppler-shift attenuation. 43Sc deduced levels, γ-branching ratios, mean T1/2. Natural targets.
doi: 10.1016/0375-9474(72)90876-7
1972BR33 Nucl.Phys. A192, 291 (1972) C.Broude, J.S.Forster, F.Ingebretsen Electromagnetic Transition Strengths in 35Cl NUCLEAR REACTIONS 32S(α, p), E=10 MeV; measured Eγ, Doppler-shift attenuation. 35Cl deduced levels, J, π, T1/2. Natural target.
doi: 10.1016/0375-9474(72)90260-6
1972EL12 Phys.Lett. 40B, 641 (1972) C.Ellegaard, J.R.Lien, O.Nathan, G.Sletten, F.Ingebretsen, E.Osnes, P.O.Tjom, O.Hansen, R.Stock The (1f7/2)2 Multiplet in 42Ca NUCLEAR REACTIONS 41Ca(d, p), E=12 MeV; measured σ(Ep, θ). 42Ca deduced levels, L(n), S.
doi: 10.1016/0370-2693(72)90617-X
1972HS01 Nucl.Phys. A179, 80 (1972) T.H.Hsu, R.Fournier, B.Hird, J.Kroon, G.C.Ball, F.Ingebretsen Levels Excited in the 70Ge(p, d)69Ge and 70Ge(p, t)68Ge Reactions NUCLEAR REACTIONS 70Ge(p, d), (p, t), E=20.0 MeV; measured σ(θ). 70Ge(p, t); measured Q. 69Ge deduced levels, L, S. 68Ge deduced levels, J, π, mass excess. Enriched target.
doi: 10.1016/0375-9474(72)90106-6
1971IN02 Nucl.Phys. A161, 433 (1971) F.Ingebretsen, B.W.Sargent, A.J.Ferguson, J.R.Leslie, A.Henrikson, J.H.Montague Evidence for Vibrational Excited States in 32S NUCLEAR REACTIONS 32S(p, p'γ), E=9.275 MeV; measured σ(Ep', Eγ, θ(p'γ)), Doppler-shift attenuation. 31P(p, γ), E=1.555 MeV; measured σ(Eγ, θ(γ)). 32S deduced levels, J, γ-mixing, T1/2, B(E2). Natural targets.
doi: 10.1016/0375-9474(71)90379-4
1971KR14 Nucl.Phys. A172, 99 (1971) J.Kroon, R.Fournier, R.J.W.Hodgson, B.Hird, R.W.Ollerhead, F.Ingebretsen Structure Information on 26Mg from the 26Mg(p, d)25Mg Reaction at 20 Mev NUCLEAR REACTIONS 26Mg(p, d), E=20.0 MeV; measured σ(θ). 25Mg levels deduced S. Enriched target.
doi: 10.1016/0375-9474(71)90118-7
1970BA51 Can.J.Phys. 48, 2735 (1970) G.C.Ball, J.S.Forster, F.Ingebretsen, C.F.Monahan Properties of Low-Lying States in 43Sc NUCLEAR REACTIONS 40Ca(α, pγ), E=11.8-15.5 MeV; measured σ(E;Ep, Eγ, θ(pγ)). 43Sc deduced levels, J, π, γ-branching, γ-mixing.
doi: 10.1139/p70-340
1970FO06 Phys.Lett. 32B, 451 (1970) J.S.Forster, G.C.Ball, F.Ingebretsen, C.F.Monahan Evidence for Rotational Structure in 43Sc NUCLEAR REACTIONS 40Ca(α, pγ), E=7-12 MeV; measured σ(E;Eγ, θ(γ)), Doppler shift attenuation. 43Sc levels deduced J, T1/2, γ-mixing.
doi: 10.1016/0370-2693(70)90380-1
1970HO09 Can.J.Phys. 48, 1259 (1970) B.W.Hooton, O.Hausser, F.Ingebretsen, T.K.Alexander Level Structure of 35Cl from the 32S(α, pγ)35Cl Reaction NUCLEAR REACTIONS 32S(α, pγ), E=10.975, 11.960, 12.120 MeV; measured σ(Ep, Eγ, θ(pγ)). 35Cl deduced levels, J, π, γ-branching, γ-mixing.
doi: 10.1139/p70-158
1970IN01 Phys.Lett. 31B, 297 (1970) F.Ingebretsen, C.Broude, J.S.Forster Properties of the 3942 keV Level in 35Cl and Evidence for a Ground State Rotational Band NUCLEAR REACTIONS 32S(α, pγ), E=10 MeV; measured Doppler shift attenuation, Eγ. 35Cl deduced levels, T1/2, π, ground-state rotational band, branching ratios, γ-mixing.
doi: 10.1016/0370-2693(70)90176-0
1969IN04 Can.J.Phys. 47, 1295(1969) F.Ingebretsen, T.K.Alexander, O.Hausser, D.Pelte Lifetime Measurements of the Six Lowest Lying Levels in 35Cl NUCLEAR REACTIONS 32S(α, pγ), E = 7-9 MeV; measured Eγ, Doppler shift attenuation. 35Cl deduced levels, T1/2, γ-branching, J. Ge(Li) detectors.
doi: 10.1139/p69-165
1965NO03 Phys.Letters 16, 163 (1965) R.Nordhagen, M.Hoffman, F.Ingebretsen, A.Tveter An Octupole Transition in 28Si NUCLEAR STRUCTURE 28Si; measured not abstracted; deduced nuclear properties.
doi: 10.1016/0031-9163(65)90169-1
1963AN14 Physica Norvegica 1, 187 (1963) S.L.Andersen, K.Gjotterud, F.Ingebretsen Analysis of γ-γ Angular Correlation Measurements in Aligned Nuclei NUCLEAR STRUCTURE 32S; measured not abstracted; deduced nuclear properties.
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