0000000000613944

AUTHOR

S. Glienke

showing 2 related works from this author

Evidence for molecular-cluster states in222Th

1983

The groundstate and a negative parity band of222Th have been observed in the208Pb (180, 4n)222Th reaction by conversion electron and γ-ray spectroscopy identifying the evaporation residues in a recoil separator. The de-excitation pattern is characterized by strong El transitions interconnecting the levels of alternating parity. The yrast levels may be interpreted as a molecularcluster band.

PhysicsNuclear and High Energy PhysicsMolecular clusterYrastNuclear fusionElementary particleParity (physics)ElectronAtomic physicsNuclear ExperimentSpectroscopyRecoil separatorZeitschrift f�r Physik A Atoms and Nuclei
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Excited states in neutron deficient even-even thorium isotopes (218?A?222)

1985

The nuclei218, 220, 222Th were investigated by conversion electron andγ-ray spectroscopy after compound nucleus reactions of14N with209Bi and16, 18O with208Pb. The intenseγ-background from fission was suppressed by spectroscopy of conversion electrons andγ-rays in coincidence with the evaporation residues or theirα-decay. Level schemes were determined for218Th up toIπ=10+ and for220Th and222Th up toIπ=15−. The observed structure of218Th may be explained in the spherical shell model with residual interaction by two neutron excitation. ForN≧130 completely different level schemes are observed showing very intense, collective electric dipole transitions (B(E1)−10−2 W.u.) with energies of typica…

PhysicsNuclear and High Energy PhysicsFissionExcited stateNeutronElectric dipole transitionAtomic physicsGround stateSpectroscopyIsotopes of thoriumExcitationZeitschrift f�r Physik A Atoms and Nuclei
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