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PROPERTIES OF NUCLEAR LEVELS IN A NUMBER OF ODD-A NUCLEI (151 /less than or equal to/ A /less than or equal to/ 191

Journal Article · · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

In order to obtain more evidence on the systematic behavior of nuclear energy levels in the deformed region, a number of neutron-deficient odd-mass activities were studied with internal conversion electron spectrographs. Some scintillation counter measurements were made. Level schemes are postulated for decays leading to the following odd-neutron nuclei: Pm/sup 151/ yields Sm/sup 151/, Tb/sup 151 yields Gd/sup Tb/sup 153/ yields Gd/sup 153/, Tb/sup 155/ yields Gd/sup 155/, Eu/sup 157 yields Gd/sup 157/, Tm/sup 163 yields Er/sup 163/, Tm/sup 165/ yields Er/sup 165/, Ho/sup 167 yields Er/sup 167/, Re/sup 183/ yields W/sup 1 83/, Ir/sup 185/ yields Os/sup 185/, Ir/sup 187/ yields Os/sup 187/, and Ir/sup 189/ yields Os/sup 189/. As a corollary, da ta are presented for the odd-proton nuclei populated in the decays of Pt/sup 189/ yields Ir/sup 189/ and Pt/sup 191/ yields Ir/sup 191/. The proposed sta tes are described using the Mottelson and Nilsson predictions. Some conclusions may be drawn concerning such properties of these orbitals as moments of inertia, M1/ E2 mixing ratios, and positions of the intrinsic excitations. Ratios of gamma- ray transition probabilities from the various states are given. Previously published studies of odd-A nuclei in the region of odd-N numbers 99--107 are incorporated in the energy-level systematics. (auth)

Research Organization:
Oak Ridge National Lab., Tenn.
NSA Number:
NSA-17-000847
OSTI ID:
4776503
Journal Information:
Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 128; ISSN PHRVA
Country of Publication:
Country unknown/Code not available
Language:
English