Levels of 190Os populated in the decays of 3.3 h 190mRe and 12 d 190Ir and in the 189Os(d, p)190Os reaction

S. W. Yates, J. C. Cunnane, P. J. Daly, Roger Thompson, R. K. Sheline

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

The level structure of 190Os has been investigated by the techniques of radioactive decay and neutron transfer reaction spectroscopy. The existence of 3.3 h 190mRe has been confirmed; it decays ≈ 49% by isomeric transitions and ≈ 51% by β- decay to levels in 190Os with spins $ ̌= 5. In a re-investigation of the 12 d 190Ir decay, a virtually complete decay scheme has been established and discrepancies between the Iπ values assigned to several 190Os levels by earlier workers have been resolved. The reaction 189Os(d, p)190Os has been studied and information about the locations of two-quasiparticle states involving the 3 2[512]ν orbital and about the microscopic compositions of collective excitations has been derived. Various aspects of the 190Os level structure are discussed in the light of the combined radioactivity and transfer reaction results.

Original languageEnglish
Pages (from-to)276-300
Number of pages25
JournalNuclear Physics, Section A
Volume222
Issue number2
DOIs
StatePublished - Apr 8 1974

Bibliographical note

Funding Information:
+ Present address: Argonne National Laboratory, Argonne, Illinois 60439. rt Work supported by the US Atomic Energy Commission. ttt Work supported by the US Atomic Energy Commission and in part by the National Science Foundation.

Keywords

  • Radioactivity

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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