Author: B. Haefner

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AUTHOR

B. Haefner

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New nuclides: Neptunium-243 and neptunium-244

1987

We have observedγ-rays following the β−-decay of243Np and244Np after chemical isolation of neptunium isotopes from the products of the reaction of 835 MeV136Xe with244Pu. The ground-state of 1.85-min243Np hasJ=5/2. The decay of 2.29-min244Np (probableJπ=7−) populates high-spin members of the ground state rotational band in244Pu.

Nuclear and High Energy PhysicsMaterials sciencechemistryIsotopeNeptuniumRadiochemistryNuclear fusionchemistry.chemical_elementNuclideAtomic physicsGround stateZeitschrift f�r Physik A Atomic Nuclei

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