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NSR database version of May 24, 2024.

Search: Author = R.Coussement

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2004GE11      Eur.Phys.J. A 20, 93 (2004)

G.Georgiev, G.Neyens, M.Hass, D.L.Balabanski, C.Bingham, C.Borcea, N.Coulier, R.Coussement, J.M.Daugas, G.de France, M.Gorska, H.Grawe, R.Grzywacz, M.Lewitowicz, H.Mach, I.Matea, F.de Oliveira Santos, R.D.Page, M.Pfutzner, Yu.E.Penionzhkevich, Z.Podolyak, P.H.Regan, K.Rykaczewski, M.Sawicka, N.A.Smirnova, Yu.Sobolev, M.Stanoiu, S.Teughels, K.Vyvey

g-factors of isomeric states in the neutron-rich nuclei

RADIOACTIVITY 67Ni, 69Cu(IT) [from Be(76Ge, X)]; measured Eγ, Iγ(θ, H, t). 67Ni, 69Cu deduced isomeric states g factors. Time-dependent perturbed angular distribution method.

doi: 10.1140/epja/i2002-10328-9
Citations: PlumX Metrics


2002GE16      J.Phys.(London) G28, 2993 (2002)

G.Georgiev, G.Neyens, M.Hass, D.L.Balabanski, C.Bingham, C.Borcea, N.Coulier, R.Coussement, J.M.Daugas, G.De France, F.de Oliveira Santos, M.Gorska, H.Grawe, R.Grzywacz, M.Lewitowicz, H.Mach, I.Matea, R.D.Page, M.Pfutzner, Yu.E.Penionzhkevich, Z.Podolyak, P.H.Regan, K.Rykaczewski, M.Sawicka, N.A.Smirnova, Y.G.Sobolev, M.Stanoiu, S.Teughels, K.Vyvey

g factor measurements of μs isomeric states in neutron-rich nuclei around 68Ni produced in projectile-fragmentation reactions

NUCLEAR REACTIONS 9Be(76Ge, X)67mNi/69mCu, E=61.4 MeV/nucleon; measured Eγ, Iγ(θ, H, t) following isomeric state decay. 67Ni, 69Cu levels deduced g factors. Time-dependent perturbed angular distribution method.

doi: 10.1088/0954-3899/28/12/308
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2002NE07      Nucl.Phys. A701, 403c (2002)

G.Neyens, G.Georgiev, R.Grzywacz, M.Hass, F.de Oliveira Santos, M.Lewitowicz, D.L.Balabanski, C.Bingham, C.Borcea, N.Coulier, R.Coussement, J.M.Daugas, G.De France, G.Goldring, M.Gorska, H.Grawe, C.O'Leary, I.Macovei, H.Mach, R.Page, M.Pfutzner, Yu.-E.Penionzhkevich, Z.Podolyak, P.H.Regan, K.Rykaczewski, M.Sawicka, N.A.Smirnova, Yu.Sobolev, S.Teughels, K.Vyvey

g-Factors of Isomers Around N ≈ 40, Z ≈ 28 from Time-Dependent Larmor Precession on Spin-Aligned Projectile-Like Fragments

RADIOACTIVITY 69mCu(IT) [from 9Be(76Ge, X)]; measured Eγ, Iγ(θ, H, t). 69Cu levels deduced g factors. Time differential perturbed angular distribution method.

doi: 10.1016/S0375-9474(01)01618-9
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2002OD02      Hyperfine Interactions 143, 97 (2002)

J.Odeurs, R.Coussement, K.Vyvey, H.Muramatsu, S.Gheysen, R.Callens, G.Neyens, I.Serdons, R.N.Shakhmuratov, Y.Rostovtsev, O.Kocharovskaya

Induced Transparency for Gamma Radiation via Nuclear Level Mixing

NUCLEAR REACTIONS 57Fe(γ, γ'), E=14.4 keV; measured Mossbauer spectra; deduced absorption deficit due to nuclear level mixing.

doi: 10.1023/A:1024029517332
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2002VY01      Phys.Rev. C65, 024320 (2002)

K.Vyvey, D.Borremans, N.Coulier, R.Coussement, G.Georgiev, S.Teughels, G.Neyens, H.Hubel, D.L.Balabanski

Determination of the Quadrupole Moment of the 11- Isomer in 194Pb via a Double Perturbation Analysis of a Level Mixing Spectroscopy Measurement

NUCLEAR REACTIONS Re(14N, xn)194Pb, E=87 MeV; measured Eγ, Iγ(θ, H) following implantation in Re crystal. 194Pb deduced high-spin isomer quadrupole moment. Level mixing spectroscopy, double perturbation analysis.

doi: 10.1103/PhysRevC.65.024320
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2002VY02      Phys.Rev.Lett. 88, 102502 (2002)

K.Vyvey, S.Chmel, G.Neyens, H.Hubel, D.L.Balabanski, D.Borremans, N.Coulier, R.Coussement, G.Georgiev, N.Nenoff, S.Pancholi, D.Rossbach, R.Schwengner, S.Teughels, S.Frauendorf

Quadrupole Moment of the 11- Intruder Isomer in 196Pb and Its Implications for the 16- Shears Band Head

NUCLEAR REACTIONS 187Re(14N, 5n), E=87 MeV; measured Eγ, Iγ(0°)/Iγ(90°) vs magnetic field strength following implantation on Re host. 196Pb deduced high-spin magnetic moment, absolute value of quadrupole moment, shears bandhead quadrupole moment, deformation parameters. Level mixing spectroscopy technique, comparison with Tilted Axis Cranking model.

doi: 10.1103/PhysRevLett.88.102502
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2002VY03      Phys.Lett. 538B, 33 (2002)

K.Vyvey, A.M.Oros-Peusquens, G.Neyens, D.L.Balabanski, D.Borremans, S.Chmel, N.Coulier, R.Coussement, G.Georgiev, H.Hubel, N.Nenoff, D.Rossbach, S.Teughels, K.Heyde

Quadrupole Moments of the 11- Intruder Isomers in 194, 196Pb in the Particle-Core Coupling Model

NUCLEAR STRUCTURE 198,200,204,206,208,210Po, 194,196,200,202,204,206Pb; analyzed isomeric states quadrupole moments; deduced configurations.

doi: 10.1016/S0370-2693(02)01950-0
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2001BA04      Phys.Rev.Lett. 86, 604 (2001)

D.L.Balabanski, K.Vyvey, G.Neyens, N.Coulier, R.Coussement, G.Georgiev, A.Lepine-Szily, S.Ternier, S.Teughels, M.Mineva, P.M.Walker, P.Blaha, D.Almehed, S.Frauendorf

Static Quadrupole Moment of the Five-Quasiparticle K = 35/2 Isomer in 179W Studied with the Level-Mixing Spectroscopy Method

NUCLEAR REACTIONS 170Er(13C, 4n), E=63 MeV; measured delayed Eγ, Iγ(H, t) following implantation in Pt. 179W deduced high-spin isomer quadrupole moment, deformation. Level-mixing spectroscopy method.

doi: 10.1103/PhysRevLett.86.604
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2001BA86      Acta Phys.Pol. B32, 2655 (2001)

D.L.Balabanski, K.Vyvey, G.Neyens, D.Almehed, P.Blaha, D.Borremans, S.Chmel, N.Coulier, R.Coussement, W.De Clercq, S.Frauendorf, G.Georgiev, H.Hubel, A.Lepine-Szily, M.Mineva, N.Nenoff, S.Pancholi, D.Rossbach, R.Schwengner, S.Teughels, P.M.Walker

Quadrupole Moments of High-Spin Isomers: Test of the tilted-axis cranking model

NUCLEAR REACTIONS 170Er(13C, 4n), E=63 MeV; Re(14N, xn)196Pb, E not given; measured Eγ, Iγ(θ, H, t). 179W, 196Pb deduced quadrupole moments for high-spin isomers. Level-mixing spectroscopy technique. Comparison with tilted-axis cranking predictions.


2001CO09      Phys.Rev. C63, 054605 (2001)

N.Coulier, G.Neyens, D.L.Balabanski, D.Borremans, R.Coussement, J.M.Daugas, G.Georgiev, S.Teughels, K.Vyvey

β-Level Mixing Resonance: A method to study the spin alignment and spin polarization of projectile fragments

RADIOACTIVITY 12B(β-); analyzed β asymmetry vs external magnetic field strength; deduced spin-alignment, spin-polarization components of orientation. β-level mixing resonance technique.

doi: 10.1103/PhysRevC.63.054605
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2001GE13      Yad.Fiz. 64, No 7, 1258 (2001); Phys.Atomic Nuclei 64, 1181 (2001)

G.Georgiev, D.L.Balabanski, C.Bingham, C.Borcea, N.Coulier, R.Coussement, J.M.Daugas, G.De France, F.de Oliveira Santos, G.Goldring, M.Gorska, H.Grawe, R.Grzywacz, M.Hass, C.O'Leary, M.Lewitowicz, H.Mach, I.Macovei, R.Page, M.Pfutzner, Yu.E.Penionzhkevich, Zs.Podolyak, P.H.Regan, K.Rykaczewski, M.Sawicka, N.A.Smirnova, Yu.G.Sobolev, M.Stanoiu, S.Teughels, K.Vyvey, G.Neyens

Measurement of the g Factors of Isomers Near the Proposed N ≈ 40 Subshell Closure

NUCLEAR REACTIONS 9Be(76Ge, X)69mCu/67mNi/66mCo, E=61.4 MeV/nucleon; measured Eγ, Iγ(θ, H, t), (particle)γ-coin. 69Cu deduced transitions g factors, isomer T1/2, level configurations. Time-dependent perturbed angular correlation.

doi: 10.1134/1.1389539
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2001NE03      Nucl.Phys. A682, 214c (2001)

G.Neyens, D.L.Balabanski, D.Borremans, R.Coussement, N.Coulier, J.M.Daugas, F.de Oliveira Santos, G.Georgiev, M.Lewitowicz, N.A.Smirnova, S.Teughels, K.Vyvey, and the GANIL E255/E322/E314a/E348 Collaborations

Recent Results on Nuclear Moments of Neutron-Rich Ground States and Isomers from Projectile Fragmentation

NUCLEAR MOMENTS 27Na; measured NMR spectra. 31Al; measured g factor. Spin-oriented projectile fragment beams.

doi: 10.1016/S0375-9474(00)00642-4
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2001NE06      Acta Phys.Pol. B32, 1061 (2001)

G.Neyens, D.L.Balabanski, D.Borremans, N.Coulier, R.Coussement, W.De Clercq, G.Georgiev, S.Teughels, K.Vyvey

Nuclear Magnetic and Quadrupole Moments of Exotic Isomeric States


2001VY01      Nucl.Instrum.Methods Phys.Res. A462, 588 (2001)

K.Vyvey, G.Neyens, S.Cottenier, D.L.Balabanski, N.Coulier, R.Coussement, G.Georgiev, A.Lepine-Szily, S.Ternier, S.Teughels

Measurement of a Strong Atomic Hyperfine Field Allowing the Determination of Nuclear g-Factors in (Sub)nanosecond States

RADIOACTIVITY 69mGe(IT) [from Fe(16O, xn2p)]; measured Iγ(θ, H) from oriented nuclei; deduced atomic magnetic hyperfine field. Application to g-factor measurements discussed.

doi: 10.1016/S0168-9002(01)00159-0
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2000RO30      Phys.Rev. C62, 044312 (2000)

W.F.Rogers, G.Georgiev, G.Neyens, D.Borremans, N.Coulier, R.Coussement, A.D.Davies, J.L.Mitchell, S.Teughels, B.A.Brown, P.F.Mantica

Ground-State Magnetic Moment of the T = 1 Nucleus 32Cl using On-Line β-NMR Spectroscopy

RADIOACTIVITY 31S, 32Cl(β+) [from 36Ar fragmentation]; measured β asymmetry vs NMR frequency. 31S, 32Cl deduced μ. Comparisons with neighboring nuclides. β-NMR technique.

doi: 10.1103/PhysRevC.62.044312
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2000VY01      Phys.Rev. C62, 034317 (2000)

K.Vyvey, G.Neyens, N.Coulier, R.Coussement, G.Georgiev, S.Ternier, S.Teughels, A.Lepine-Szily, D.L.Balabanski

Preservation of Orientation of Fusion-Evaporation Reaction Residues Recoiling into Vacuum in a Level Mixing Spectroscopy Experiment

NUCLEAR REACTIONS 56Fe(16O, n2p), E=65 MeV; measured isomer decay Eγ, Iγ(θ, H) following implantation in Ni, Pt. 69Ge deduced high-spin isomer quadrupole moment. Level mixing spectroscopy in a recoil-shadow geometry.

doi: 10.1103/PhysRevC.62.034317
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1999CO09      Phys.Rev. C59, 1935 (1999)

N.Coulier, G.Neyens, S.Teughels, D.L.Balabanski, R.Coussement, G.Georgiev, S.Ternier, K.Vyvey, W.F.Rogers

New β Level Mixing and Nuclear Magnetic Resonance Method for Measuring Magnetic Dipole and Electric Quadrupole Moments of Short-Lived Nuclei

RADIOACTIVITY 12B(β-) [from 11B(d, p)]; measured β asymmetry, β-NMR from implanted source. 12B deduced μ, quadrupole moment. Combined level mixing resonance-NMR technique.

NUCLEAR MOMENTS 12B(β-) [from 11B(d, p)]; measured β asymmetry, β-NMR from implanted source. 12B deduced μ, quadrupole moment. Combined level mixing resonance-NMR technique.

doi: 10.1103/PhysRevC.59.1935
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1999NE01      Phys.Rev.Lett. 82, 497 (1999)

G.Neyens, N.Coulier, S.Teughels, G.Georgiev, B.A.Brown, W.F.Rogers, D.L.Balabanski, R.Coussement, A.Lepine-Szily, M.Lewitowicz, W.Mittig, F.de Oliveira Santos, P.Roussel-Chomaz, S.Ternier, K.Vyvey, D.Cortina-Gil

Magnetic Moment of the 1- Ground State in 18N Measured with a New β Level Mixing Nuclear Magnetic Resonance Technique

RADIOACTIVITY 18N(β-) [from 12C(22Ne, X), E=60 MeV/nucleon]; measured β-NMR, β asymmetry vs H. 18N deduced ground state μ. Level mixing NMR technique.

NUCLEAR STRUCTURE 15,16,18N, 19O; calculated μ. Shell model.

doi: 10.1103/PhysRevLett.82.497
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1999VY01      J.Phys.(London) G25, 767 (1999)

K.Vyvey, G.Neyens, D.L.Balabanski, S.Ternier, N.Coulier, S.Teughels, G.Georgiev, R.Wyckmans, R.Coussement, M.Mineva, P.M.Walker, A.P.Byrne, G.D.Dracoulis, P.Blaha

Study of the Static Quadrupole Moment of the K = 35/2 Isomer in 179W

NUCLEAR REACTIONS 170Er(13C, 4n), E=63 MeV; measured Eγ, Iγ(θ, H). 179W deduced high-K isomer quadrupole moment. Level mixing spectroscopy technique, recoil nuclei implanted in Tl host.

doi: 10.1088/0954-3899/25/4/032
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1998CO37      Nuovo Cim. 111A, 727 (1998)

N.Coulier, G.Neyens, S.Teughels, G.Georgiev, S.Ternier, K.Vyvey, R.Coussement, D.L.Balabanski, D.Cortina-Gil, M.Lewitowicz, W.Mittig, F.de Oliveira Santos, P.Roussel-Chomaz, W.Rogers, A.Lepine-Szily

The Quadrupole Moment of 18N, Measured with the Level Mixing Resonance (LMR) Method

RADIOACTIVITY 18N(β-) [from 12C(22Ne, X), E=60.3 MeV/nucleon]; measured β-NMR, β asymmetry vs H. 18N deduced quadrupole moment, deformation. Level mixing resonance technique.


1998NE04      Acta Phys.Hung.N.S. 7, 101 (1998)

G.Neyens, N.Coulier, S.Teughels, S.Ternier, K.Vyvey, R.Coussement, D.L.Balabanski, J.M.Casandjian, M.Chartier, M.D.Cortina-Gil, M.Lewitowicz, W.Mittig, A.N.Ostrowski, P.Roussel-Chomaz, N.Alamanos, A.Lepine-Szily, W.Rogers

Quadrupole and Magnetic Moment Measurements on Spin-Aligned Projectile Fragments

RADIOACTIVITY 18N(β-) [from 9Be(22Ne, X)]; measured β-asymmetry. 18N deduced (quadrupole frequency)/(magnetic moment) ratio. Level mixing resonance technique.


1997CO15      Acta Phys.Pol. B28, 407 (1997)

N.Coulier, G.Neyens, S.Ternier, K.Vyvey, S.Michiels, R.Coussement, D.L.Balabanski, J.M.Casandjian, M.Chartier, M.D.Cortina-Gil, M.Lewitowicz, W.Mittig, A.N.Ostrowski, P.Roussel-Chomaz, N.Alamanos, A.Lepine-Szily

Direct Determination of the Alignment of Projectile Fragments from a β-Anisotropy Level Mixing Resonance (LMR) Measurement

NUCLEAR REACTIONS 9Be(22Ne, X)12B/18N, E=60 MeV/nucleon; 12C(13C, X)12B, E=75 MeV/nucleon; measured residuals β-asymmetry; deduced residuals alignment related features. Level mixing resonance method.

RADIOACTIVITY 12B(β-) [from 9Be(22Ne, X), E=60 MeV/nucleon; 12C(13C, X), E=75 MeV/nucleon]; 18N(β-) [from 9Be(22Ne, X), E=60 MeV/nucleon]; measured β-asymmetry; deduced alignment related features. Level mixing resonance method.


1997CO31      Hyperfine Interactions 107, 307 (1997)

R.Coussement, G.Neyens

Quantum Interferences at Nuclear Level Crossing

doi: 10.1023/A:1012005216928
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1997NE01      Phys.Lett. 393B, 36 (1997)

G.Neyens, N.Coulier, S.Ternier, K.Vyvey, S.Michiels, R.Coussement, D.L.Balabanski, J.M.Casandjian, M.Chartier, M.D.Cortina-Gil, M.Lewitowicz, W.Mittig, A.N.Ostrowski, P.Roussel-Chomaz, N.Alamanos, A.Lepine-Szily

Nuclear Spin Alignment and Static Moments of Light Projectile Fragments Measured with the Level Mixing Resonance (LMR) Method

RADIOACTIVITY 18N(β-) [from 9Be(22Ne, X), E=60 MeV/nucleon]; 12B(β-) [from 9Be(22Ne, X), E=60 MeV/nucleon; 12C(13C, X), E=75 MeV/nucleon]; measured β-asymmetry; deduced 12B, 18N alignment related features. Level mixing resonance method.

NUCLEAR REACTIONS 9Be(22Ne, X)18N, 12B, E=60 MeV/nucleon; 12C(13C, X)12B, E=75 MeV/nucleon; measured residuals β-asymmetry; deduced residuals alignment related features. Level mixing resonance method.

doi: 10.1016/S0370-2693(96)01605-X
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1997NE04      Z.Phys. A358, 267 (1997)

G.Neyens, D.L.Balabanski, K.Vyvey, S.Ternier, N.Coulier, R.Coussement, P.M.Walker, A.P.Byrne, G.D.Dracoulis, P.Blaha

LEMS: Application of the method to study the static quadrupole moment of the K = (35/2) isomer in 179W

NUCLEAR REACTIONS 170Er(13C, 4n), E=63 MeV; measured Eγ, Iγ(θ, H). 179W deduced high-K isomer quadrupole moment, quadrupole deformation limit. Level mixing spectroscopy technique.

doi: 10.1007/s002180050325
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1997NE06      Nucl.Phys. A625, 668 (1997)

G.Neyens, S.Ternier, N.Coulier, K.Vyvey, R.Coussement, D.L.Balabanski

Influence of Particle-Core Coupling on the Quadrupole Moment of 8+ Isomers in Even-Even Po Isotopes

NUCLEAR REACTIONS Pt(12C, 4n), E=70 MeV; Pt(13C, 5n), E=78 MeV; measured Iγ(θ, H). 202,204Po deduced quadrupole coupling constants. Defect-associated electric field gradients, level mixing spectroscopy, natural target, Ge-detectors.

NUCLEAR STRUCTURE 200,202,204,206,208,210Po; calculated electric quadrupole moments. Shell model, particle-core vibrational interaction.

doi: 10.1016/S0375-9474(97)00415-6
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1997NE08      Nucl.Instrum.Methods Phys.Res. B122, 121 (1997)

G.Neyens, G.S'heeren, R.Coussement

Nuclear Orientation in a Two-Step Laser Ionization Process

NUCLEAR MOMENTS 21Na, 25Al; calculated orientation following laser ionization procedure.

doi: 10.1016/S0168-583X(96)00365-5
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1997OD05      Hyperfine Interactions 107, 299 (1997)

J.Odeurs, R.Coussement

Models for Homogeneous Line Broadening in Long-Lived Nuclear States

doi: 10.1023/A:1012092714202
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1997VY01      Acta Phys.Pol. B28, 329 (1997)

K.Vyvey, G.Neyens, S.Ternier, N.Coulier, S.Michiels, R.Coussement, D.L.Balabanski, A.Lepine-Szily

Improvements of the LEMS Technique to Determine Quadrupole Moments of High-K Isomers

NUCLEAR REACTIONS 56Fe(16O, n2p), E=65 MeV; measured Eγ, Iγ. 69Ge deduced high-K isomer quadrupole moment. Recoil-shadow technique, level mixing spectroscopy method.


1995NE06      Phys.Rev. C51, 3483 (1995)

G.Neyens, I.Van Asbroeck, R.Coussement

Static Quadrupole Moment of High-Spin Isomers in the Doubly-Odd 214Fr Nucleus

NUCLEAR STRUCTURE 214Fr; analyzed data; deduced high-spin isomers static quadrupole moment.

doi: 10.1103/PhysRevC.51.3483
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1994NE01      Phys.Rev. C49, 645 (1994)

G.Neyens, R.Nouwen, G.S'heeren, M.Van Den Bergh, R.Coussement

Spin-Lattice Relaxation of Ra in Tl and g Factor of the 213mRa, τ = 2.1 ms Isomer

RADIOACTIVITY 213m,214mRa [from Tl(14N, X), E=83 MeV]; measured γ-anisotropy, oriented nuclei; deduced Ra spin-lattice relaxation time in Tl, Knight shift. 213Ra level deduced g.

doi: 10.1103/PhysRevC.49.645
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1993NE04      Nucl.Phys. A555, 629 (1993)

G.Neyens, R.Nouwen, G.S'heeren, M.Van Den Bergh, R.Coussement

Quadrupole Moments of Isomeric States in 212Ra, 213Ra and 214Ra

NUCLEAR REACTIONS 205,203Tl(14N, xn), E=80-93 MeV; measured Iγ(θ, H), level mixing spectroscopy. 212,213,214Ra deduced quadrupole coupling constants, electric quadrupole moments, B(E2). Poly- and single-crystal Tl hosts, n-type Ge detector. Shell model.

doi: 10.1016/0375-9474(93)90492-G
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1993NE09      Hyperfine Interactions 78, 195 (1993)

G.Neyens, R.Nouwen, G.S'heeren, M.Van Den Bergh, R.Coussement

Measurements of Quadrupole Interaction Frequencies of Long-Lived Isomers with the Level Mixing Spectroscopy (LEMS) Method

NUCLEAR REACTIONS Tl(14N, xn), E=83-95 MeV; measured level mixing spectra; deduced quadrupole interaction frequencies for 214m,213m,212mRa.

doi: 10.1007/BF00568139
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1993PI19      Hyperfine Interactions 80, 989 (1993)

R.Pirlot, M.Cyamukungu, L.Grenacs, J.Lehmann, R.Coussement, G.S'heeren, K.Tompa

Hyperfine Coupling of 12B in Noble Metals and Al; Enhancement of the conduction-electron spin susceptibility by e-e exchange

RADIOACTIVITY 12B(β-) [from 11B(d, p), E=1.6 MeV]; measured NMR, oriented nuclei; deduced Korringa contribution to nuclear spin lattice relaxation time of interstitial 12B in Al, noble metals. Polarized source.

doi: 10.1007/BF00567452
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1993SH37      Hyperfine Interactions 78, 201 (1993)

G.S'heeren, M.Van Den Bergh, R.Coussement, M.Cyamukungu, J.Lehmann, R.Pirlot, L.Grenacs, P.Boolchand

Identification of Cross-Relaxation Resonances of 12B Implanted sc Aluminum

RADIOACTIVITY 12B(β-) [from 11B(d, p)]; measured decay asymmetry, relaxation times vs external magnetic field, crystal orientation θ; deduced cross-relaxation resonances identification. Polarized source.

doi: 10.1007/BF00568140
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1992CO20      Phys.Rev. B45, 9755 (1992)

R.Coussement, G.S'heeren, M.Van Den Bergh, P.Boolchand

Nuclear Resonant Absorption in Long-Lived Isomeric Transition

NUCLEAR REACTIONS 109Ag(γ, γ), E=88 keV; calculated homogeneous broadened, natural, solid state induced inhomogeneous widths relative values role in Mossbauer effect observation.

doi: 10.1103/PhysRevB.45.9755
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1991HA02      Phys.Rev. C43, 514 (1991)

F.Hardeman, G.Neyens, G.Scheveneels, R.Nouwen, G.Sheeren, M.Van Den Bergh, R.Coussement, A.P.Byrne, R.Musseler, H.Hubel, G.Baldsiefen

Quadrupole Moments of High Spin Isomers in 213Fr, 212Fr, and 211Fr

RADIOACTIVITY 213,212,211Fr; measured Eγ, quadrupole interaction frequency in Tl; deduced electric field gradient for Fr in Tl. 211,212,213Fr deduced isomer levels quadrupole moments.

doi: 10.1103/PhysRevC.43.514
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1991SC14      Phys.Rev. C43, 2560 (1991)

G.Scheveneels, F.Hardeman, G.Neyens, R.Coussement

Quadrupole Moments of High-Spin Isomers in Neutron-Deficient Bi Isotopes

RADIOACTIVITY 202,204,206,207Bi [from Tl(α, xn), E=35-73 MeV]; measured high-spin isomer quadrupole moments; deduced Korringa constants, electric field gradient of Bi in Tl. Level-mixing spectroscopy method.

doi: 10.1103/PhysRevC.43.2560
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1991SC15      Phys.Rev. C43, 2566 (1991)

G.Scheveneels, F.Hardeman, G.Neyens, R.Coussement

Deformation Increase of High-Spin Core-Excited Isomers in the Astatine Nuclei

NUCLEAR MOMENTS 208,209,210,211At; measured high-spin isomers quadrupole moments. Level-mixing-spectroscopy method.

doi: 10.1103/PhysRevC.43.2566
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1990HA30      Hyperfine Interactions 59, 13 (1990)

F.Hardeman, G.Scheveneels, G.Neyens, R.Nouwen, R.Coussement

Quadrupole Moments of High Spin Isomers Studied by Level Mixing Spectroscopy (LEMS)

RADIOACTIVITY 207,206,204,202Bi, 211,210,209,208At, 213,212,211Fr; measured high spin isomers quadrupole moments. Level mixing spectroscopy.

doi: 10.1007/BF02401191
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1987SC21      Fizika(Zagreb) 19, Supplement 1, 35 (1987)

G.Scheveneels, R.Coussement, P.Put, F.Hardeman

LEMS Quadrupole Interaction Measurements on High Spin Isomers in At and Bi Nuclei

RADIOACTIVITY 211,210,209,208At, 202,204,206,207Bi; measured γ anisotropy vs field strength; deduced isomeric state quadrupole interaction. Level mixing spectroscopy.


1986BE01      Phys.Rev. C33, 390 (1986)

I.Berkes, O.El Hajjaji, B.Hlimi, G.Marest, R.Coussement, F.Hardeman, P.Put, G.Scheveneels

Quadrupole Moment of 107mAg Determined by Level Mixing Resonance on Oriented Nuclei

RADIOACTIVITY 107Cd(EC), (β+); measured Iγ(θ), oriented nuclei. 107mAg deduced quadrupole moment. Single 107CdZn crystal, level mixing resonance.

doi: 10.1103/PhysRevC.33.390
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1984BE53      Phys.Rev. C30, 2026 (1984)

I.Berkes, B.Hlimi, G.Marest, E.H.Sayouty, R.Coussement, F.Hardeman, P.Put, G.Scheveneels

Static Quadrupole Moments of 106mAg and 109mAg and the Electric Field Gradient of Ag in Zn and Cd

RADIOACTIVITY 106mAg(β+), 110mAg(IT), (β-) [from Pd(d, xn)]; 109Cd(EC); measured Iγ(θ), oriented nuclei; deduced electric field gradient for Ag in Zn, Cd. 106mAg, 109mAg deduced static quadrupole moment.

doi: 10.1103/PhysRevC.30.2026
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1984PU01      Phys.Lett. 103A, 151 (1984); see also 1984Pu02

P.Put, R.Coussement, G.Scheveneels, F.Hardeman, I.Berkes, B.Hlimi, G.Marest, J.Sau, E.H.Sayouty

Higher Order Level Mixing Resonances on Oriented Nuclei

doi: 10.1016/0375-9601(84)90223-8
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1984PU02      Phys.Lett. 103A, 151 (1984)

P.Put, R.Coussement, G.Scheveneels, F.Hardeman, I.Berkes, B.Hlimi, G.Marest, J.Sau, E.H.Sayouty

Higher Order Level Mixing Resonances on Oriented Nuclei

RADIOACTIVITY 109Cd(EC); measured Iγ(θ), oriented nuclei; deduced electric quadrupole coupling to μ ratio for 109mAg in Zn. 109mAg deduced Q.

doi: 10.1016/0375-9601(84)90223-8
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1983BE68      Hyperfine Interactions 15/16, 233 (1983)

I.Berkes, G.Marest, J.Sau, H.Sayouty, P.Put, R.Coussement, G.Scheveneels

The Quadrupole Moments of 195m-197mAu (11/2) and the Low Temperature Thermal Relaxation of Gold in Cadmium

RADIOACTIVITY 195m,197mHg(EC), (IT); measured Iγ(θ), oriented nuclei; deduced relaxation constant, quadrupole interaction frequency for Au in Cd. 195,197Au deduced isomer quadrupole moment.

doi: 10.1007/BF02159745
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1983CO16      Phys.Lett. 97A, 301 (1983)

R.Coussement, P.Put, L.Hermans, M.Rots, I.Berkes, R.Brenier, G.Marest

Nuclear Level Mixing Resonances on Low Temperature Oriented Nuclei

RADIOACTIVITY 111In(EC); measured γγ(θ, H, t), oriented nuclei; deduced intermediate state perturbation parameters vs applied field. Level mixing resonance method, low temperature orientation in single crystal Zn.

doi: 10.1016/0375-9601(83)90694-1
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1983FU21      Hyperfine Interactions 15/16, 1017 (1983)

M.Fujioka, S.Shibuya, N.Kawamura, A.Matsumoto, Y.Kimura, S.Hayashibe, T.Ishimatsu, R.Coussement, M.Rots, L.Hermans

Nuclear Level-Crossing Resonance of the 398-keV (9/2)+ State of 69Ge in a Zn Single Crystal

NUCLEAR REACTIONS 66Zn(α, n), E=20 MeV; measured γ(θ, H). 69Ge transition deduced level-crossing resonance parameters in Zn.

doi: 10.1007/BF02147410
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1983SH47      Hyperfine Interactions 14, 315 (1983)

S.Shibuya, M.Fujioka, N.Kawamura, A.Matsumoto, S.Hayashibe, Y.Kimura, T.Ishimatsu, R.Coussement, M.Rots, L.Hermans, P.Put

In-Beam Study of the Level Crossing Resonance on the 4 μs (9/2)+ Isomer of 69Ge in a Zn Single Crystal

RADIOACTIVITY 69mGe [from Zn(α, xn), E=20 MeV]; measured γ(θ, H), γ(θ, H, t); deduced quadrupole interaction frequency temperature dependence.

doi: 10.1007/BF02043304
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1982NA23      Hyperfine Interactions 12, 233 (1982)

F.Namavar, M.Rots, J.Claes, R.Coussement

Quadrupole Interactions at Different Probe Ions Implanted in Nickel Single Crystals as Observed by β-γ TDPAC

RADIOACTIVITY 129Te, 132Te, 133Xe, 111Ag(β-); measured βγ(θ, H, t). Polarized sources, ion implantation in single Ni crystals.

doi: 10.1007/BF01026374
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1980HA26      Hyperfine Interactions 8, 41 (1980)

S.Haroutunian, M.Meyer, I.Berkes, G.Marest, R.Coussement

Intermediate State Perturbation in Low Temperature Nuclear Orientation

RADIOACTIVITY 111In [from Ag(α, xn)]; measured γ(θ, H, T) in In, low temperature. 111In level deduced μ. Intermediate state perturbation calculation.

doi: 10.1007/BF01026857
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1979LA05      J.Phys.(Paris), Colloq. 40, C2-20 (1979)

J.Ladriere, A.Meykens, R.Coussement, M.Cogneau, M.Boge, P.Auric, R.Bouchez, A.Benabed, J.Godart

Isomer Shift Calibration of 57Fe by Life-Time Variations in the Electron-Capture Decay of 52Fe

RADIOACTIVITY 52Fe [from 55Mn(p, 4n), E=65 MeV]; measured relative electron-capture rate; deduced electron densities. 57Fe deduced isomer shift. Separation by anion exchange.


1978RO20      Hyperfine Interactions 5, 391 (1978)

M.Rots, H.Ooms, J.Claes, F.Namavar, R.Coussement

A Special Feature of the Integral Perturbed Angular Correlation Method for the Study of the Electric Quadrupole Interaction

RADIOACTIVITY 129mXe; measured ce-γ(θ) in Al, diamond; deduced crystal fields, attenuation factors for diamond.

doi: 10.1007/BF01021709
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1976CO32      Hyperfine Interactions 2, 308 (1976)

R.Coussement, R.Geerts, H.Pattyn, E.Schoeters, R.E.Silverans, L.Vanneste

The Magnetic Moment of 119mTe

RADIOACTIVITY 119mTe; measured not given. 119Sb levels deduced J, π, λ.

NUCLEAR MOMENTS 119mTe; measured μ.

doi: 10.1007/BF01021153
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1976SC17      Phys.Rev.Lett. 37, 302 (1976)

E.Schoeters, R.Coussement, R.Geerts, J.Odeurs, H.Pattyn, R.E.Silverans, L.Vanneste

Hyperfine Interaction of Xenon in Iron

NUCLEAR MOMENTS 129mXe; measured hyperfine interaction in Fe; deduced g. NMR technique.

doi: 10.1103/PhysRevLett.37.302
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1976VA28      Hyperfine Interactions 2, 321 (1976)

H.van de Voorde, H.Ooms, M.Rots, M.Vercauteren, J.Deraedt, G.Dumont, H.Pattyn, J.Odeurs, R.Coussement

Quadrupole Moment of the 9/2-, 321 keV Level in the 125Te Nucleus

RADIOACTIVITY 125Sb; measured γγ(θ). 125Te level deduced quadrupole moment.

doi: 10.1007/BF01021157
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1975RO07      Phys.Rev.Lett. 34, 1099 (1975)

M.Rots, F.Namavar, R.Coussement

Detection of a Quadrupole Interaction in a Ferromagnetic Cubic Lattice By Allowed β-γ Time-Differential Perturbed Angular Correlation

RADIOACTIVITY 129mTe; measured βγ(θ, H, t). 129I deduced hyperfine field, hyperfine parameters.

doi: 10.1103/PhysRevLett.34.1099
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1974CO12      J.Phys.(Paris), Colloq. C-1, 37 (1974)

R.Coussement, G.Dumont, G.Langouche, H.Pattyn, M.Rots, K.P.Schmidt, M.Van Rossum

Implantation of 129mTe in Fe and Ni Foils and Determination of the Hyperfine Fields

NUCLEAR REACTIONS 129mTe(γ, γ); measured Mossbauer effect. Deduced hyperfine field in Fe, Ni.


1974LA09      Phys.Rev. B9, 848 (1974)

G.Langouche, M.Van Rossum, K.P.Schmidt, R.Coussement

Quadrupole Interaction of 125Te and 129I in Polycrystalline Te and in Te Single Crystals

NUCLEAR MOMENTS 125Te, 129I; measured quadrupole interaction constants. Mossbauer measurement.

doi: 10.1103/PhysRevB.9.848
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1974LA26      Phys.Lett. 50A, 20 (1974)

G.Langouche, M.Van Rossum, P.Boolchand, A.Meykens, R.Coussement

Observation of a Small Quadrupole Interaction in 129IFe Mossbauer Spectra

NUCLEAR REACTIONS 129I(γ, γ'); measured Mossbauer spectra of I in Fe. 129mI deduced quadrupole interaction.

doi: 10.1016/0375-9601(74)90334-X
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1974MA24      Phys.Rev. C10, 402 (1974)

G.Marest, R.Haroutunian, I.Berkes, M.Meyer, M.Rots, J.De Raedt, H.Van de Voorde, H.Oonis, R.Coussement

Electromagnetic Properties of Low-Lying Levels of 129Xe

RADIOACTIVITY 129Cs; measured I(ce), γγ(θ), γγ(θ, H, t). 129Xe deduced μ, levels, J, π, γ-mixing, λ, B(M1), B(E2).

doi: 10.1103/PhysRevC.10.402
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1974NA06      J.Phys.(Paris), Colloq. C-1, 7 (1974)

F.Namavar, M.Rots, H.Pattyn, G.Dumont, R.Coussement

A Study of the Hyperfine Field of Cesium in Nickel and Iron

RADIOACTIVITY 133Ba; measured γγ(θ, H). 133Cs deduced hyperfine field in Ni, Fe.


1974PA02      J.Phys.(Paris), Colloq. C-1, 19 (1974)

H.Pattyn, G.Dumont, R.Coussement, R.E.Silverans, E.Schoeters, L.Vanneste

The Hyperfine Field of Xenon Nuclei at Lattice Sites in Iron

RADIOACTIVITY 131m,133mXe; measured γ(θ, H, t). 131m,133mXe deduced hyperfine field in Fe.


1974RO13      J.Phys.(Paris), Colloq. C-1, 35 (1974)

M.Rots, R.Coussement

Time Differential PAC on the First Excited State in 129I

RADIOACTIVITY 129mTe; measured γγ(θ, H, t). 129I deduced hyperfine field, quadrupole interaction frequency in Ni.


1974RO32      Z.Phys. 270, 51 (1974)

M.Rots, H.Van de Voorde, H.Ooms, F.Namavar, R.Coussement, J.De Raedt

The Angular Correlation of the 459.7 - 27.7 keV γ-γ Cascade in 129I and its Use for a TDPAC

RADIOACTIVITY 129mTe; measured γγ(θ), γγ(θ, H, t). 129I level deduced γ-mixing. 129I, (in Ni); deduced hyperfine field.

doi: 10.1007/BF01676793
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1974SI07      Z.Phys. 267, 145 (1974)

R.E.Silverans, R.Coussement, H.Pattyn, E.Schoeters, L.Vanneste

Nuclear Orientation Measurements of the Magnetic Dipole Moments of the 11/2- Isomeric States in 129Xe, 131Xe and 133Xe

RADIOACTIVITY 129m,131m,133mXe; measured γ(θ, T). 129m,131m,133mXe levels deduced μ.

doi: 10.1007/BF01668641
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1973PA09      Phys.Lett. 45A, 131 (1973)

H.Pattyn, R.Coussement, G.Dumont, E.Schoeters, R.E.Silverans, L.Vanneste

The Hyperfine Field of Xenon Nuclei at Lattice Sites in Iron

RADIOACTIVITY 131mXe, 133mXe; measured γ(θ, t). Deduced hyperfine field of Xe nuclei in Fe.

doi: 10.1016/0375-9601(73)90456-8
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1973SC09      Nucl.Phys. A204, 279 (1973)

K.P.Schmidt, R.Coussement, G.Langouche, J.P.Lafaut

A Mossbauer Parity Experiment on 61Ni and the Determination of the 61Co Ground State Spin

RADIOACTIVITY 61Co [from 58Fe(α, p)]; measured βγ-coin, Mossbauer spectrum of 61Ni. 61Co deduced ground state spin, ratio of β-decay coupling constants. Enriched target.

doi: 10.1016/0375-9474(73)90273-X
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1973SI06      Nucl.Phys. A202, 467 (1973)

R.E.Silverans, R.Coussement, E.Schoeters, L.Vanneste

Magnetic Moments of 127gTe and 129gTe

RADIOACTIVITY 127Te[from 126Te(n, γ)], 129Te[from 128Te(n, γ)]; measured Iγ(θ) of oriented states. 127gTe, 129gTe deduced μ(3/2+). Enriched target. Ge(Li) detectors.

doi: 10.1016/0375-9474(73)90636-2
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1973SI26      Nucl.Phys. A210, 307 (1973)

R.E.Silverans, R.Coussement, E.Schoeters, L.Vanneste

Study of the Magnetic Dipole Moments of the Odd-Mass Tellurium Isomers By Nuclear Orientation

RADIOACTIVITY 123mTe, 127mTe, 129mTe [from Te(n, γ)]; implantation in iron; measured Iγ(θ, t); deduced μ. Ge(Li) detectors.

doi: 10.1016/0375-9474(73)90304-7
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1972CO12      Priv.Comm. (March 1972)

R.Coussement


1972SI21      Nucl.Phys. A193, 367 (1972)

R.E.Silverans, R.Coussement, G.Dumont, H.Pattyn, L.Vanneste

Magnetic Moment of the 11/2- Isomer of 125Te

RADIOACTIVITY 125mTe; oriented nuclei; measured Iγ(θ) in Fe. 125mTe deduced μ.

doi: 10.1016/0375-9474(72)90325-9
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1971RO17      Nucl.Phys. A170, 240 (1971); Priv.Comm. (March 1972)

M.Rots, R.Silverans, R.Coussement

Magnetic Moments and Mixing Ratios in the γ-Decay of 125Te

RADIOACTIVITY 125Sb; measured γγ(θ), γγ(θ, H) in Fe, Ni. 125Te deduced γ-mixing, μ. Ge(Li), NaI(Tl) detectors.

doi: 10.1016/0375-9474(71)90634-8
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1970RO31      Z.Phys. 240, 396 (1970)

M.Rots, R.Coussement, R.Van Esch, M.Boge, S.Dousson

Implantation of Tellurium in Iron and Measurement of the Magnetic Moment of the First Excited State in 123Te

RADIOACTIVITY 123mTe; measured ceγ(θ), ceγ(θ, H) in Fe. 123Te level deduced μ.

doi: 10.1007/BF01395576
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1970VA10      Z.Phys. 233, 477 (1970)

R.Van Esch, M.Rots, R.Coussement

The Magnetic Moment of the Lowest 3/2- State in 57Co

RADIOACTIVITY 57Ni [from 54Fe(α, n)]; measured γγ(θ, H, t), γγ(θ). 57Co level deduced g, J, π.

doi: 10.1007/BF01395546
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1968CO30      Meded.Kon.Vlaam.Acad.Wetensch.Belg., Kl.Wetensch. 30, No.10 (1968)

R.Coussement, L.Vanneste

Higher Order Contributions and Nuclear Structure Effects in Isospin Forbidden Beta-Transitions


1967VA13      Nucl.Phys. A98, 585 (1967)

L.van Neste, R.Coussement, J.P.Deutsch

The (0+)-(0+) Positon Decay of 66Ga

RADIOACTIVITY 66Ga [from Cu(α, n)]; measured T1/2, Eβ, positon-spectrum; deduced shape factor, second-forbidden matrix elements, parent isospin-impurity.

doi: 10.1016/0375-9474(67)90101-7
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1967VA23      Nucl.Phys. A102, 369(1967)

L.van Neste, R.Coussement, J.P.Deutsch

The (0+)-(0+) Beta Transition in 156Eu

RADIOACTIVITY 156Eu[from 239Pu, fission]; measured Eβ, β-spectrum; deduced shape factor, second-forbidden matrix elements, parent isospin impurity, isospin-mixing matrix element.

doi: 10.1016/0375-9474(67)90029-2
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1966VA27      Phys.Lett. 23, 122 (1966)

L.Van Neste, R.Coussement, J.P.Deutsch

Second-Forbidden Contributions to Isospin-Forbidden (0+)-(0+) Beta-Transitions

NUCLEAR STRUCTURE 64,66Ga, 156Eu, 170Lu, 234Np; calculated second-forbidden matrix elements for 0+-0+ transitions; deduced influence on isospin impurities.

doi: 10.1016/0031-9163(66)90151-X
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