The decay of 180Os

doi:10.1016/0375-9474(68)90288-1

Nuclear Physics A

Volume 114, Issue 3, 1 July 1968, Pages 602-608

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Abstract

The decay of 25.5±0.4 min ¹⁸⁰Os occurs by a fast beta transition (log ft=4.7) followed by a 20.1 keV E1 gamma-ray transition; the intermediate level has a half-life of 87.5±2.7 ns. These results are interpreted in terms of the Nilsson model.

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Cited by (9)

Nuclear Data Sheets for A = 180
2015, Nuclear Data Sheets
Nuclear data sheets for A = 180
2003, Nuclear Data Sheets
Evaluated spectroscopic data for all nuclei with mass number A=180 and corresponding level schemes from radioactive decay and reaction studies are presented. This evaluation contains new data on ¹⁸⁰Ta from (p,nγ) and (d,2nγ) work; data on ¹⁸⁰Ta, ¹⁸⁰W, ¹⁸⁰Ir and ¹⁸⁰Hg from heavy-ion γ-ray measurements, and band structures; and data on ¹⁸⁰Os and ¹⁸⁰Os from ε-decays. The present evaluation supersedes the earlier one by E. Browne (1994Br17), published in Nuclear Data Sheets 71, 81 (1994).
Nuclear data sheets update for A = 180
1994, Nuclear Data Sheets
Spectroscopic data for all nuclei with mass number A=180 have been evaluated, and the corresponding level schemes from radioactive decay and reaction studies are presented. Interesting data in this evaluation include the experimental β-decay branching of 0.29% 5 for ¹⁸⁰Hf (5.5 h) to ¹⁸⁰Ta (>1.2×10¹⁵ y), and the unusually large cross section measured for ¹⁸⁰Ta(γ, γ′). Such results may relate to the still unexplained natural abundance of ¹⁸⁰Ta, the rarest isotope found thus far. New experimental data on ¹⁸⁰Hf support major changes in previous spin and parity assignments, and in-beam γ-ray spectroscopy measurements have supplied the first extensive information on the level structures of ¹⁸⁰Pt and ¹⁸⁰Hg. The spin of ¹⁸⁰Lu remains undetermined suggesting the need for further measurements.
Nuclear Data Sheets for A = 180
1987, Nuclear Data Sheets
Spectroscopic data for all nuclei with mass number A=180 have been evaluated, and the corresponding level schemes from radioactive decay and reaction studies are presented. Salient topics of this evaluation are the new limit (0.023%) for the fractional population of ¹⁸⁰Hf (5.5 h) from ¹⁸⁰Lu, and the negative search for a possible ¹⁸⁰Lu isomer with a half-life between 10 s and 5 min. Both results may help in explaining the natural abundance of the long-lived ¹⁸⁰Ta isomer in terms of the slow (S) and/or the rapid (R) neutron capture processes of nucleosynthesis in stars.
Absolute γ-ray transition probabilities in doubly odd deformed nuclei
1972, Nuclear Physics, Section A
A compilation is presented which contains data about the available absolute electromagnetic transition probabilities between two-quasiparticle states in doubly odd deformed nuclei of medium-mass number. Comparisons of dipole transitions between the same Nilsson states in doubly odd and odd-mass nuclei are performed on the basis of Weisskopf and Nilsson hindrance factors. Some level assignments are critically considered. Octupole transitions are also systematized.
Evidence for dipole-quadrupole-octupole mixing in the 902 keV 2- → 2+ transition in 180W
1971, Physics Letters B

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^☆: This work is part of the research program of the Institute for Nuclear Physics Research (IKO), made possible by financial support from the Foundation for Fundamental Research on Matter (FOM) and from the Netherlands Organization for Pure Scientific Research (ZWO).

^∗: The authors wish to express their gratitude to Professors R. van Lieshout and A. H. Wapstra and to Dr. K. Marlow for valuable discussions and for their interest and support. Thanks are due to Miss J. C. Kapteijn and Mr. J. L. Visser for the irradiations of the sources and the chemical separations.

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Nuclear Physics A

Abstract

References (13)

CALT-63-60

Nucl. Phys.

Izv. Akad. Nauk. SSSR (ser. fiz.)

Bull. Acad. Sci. USSR (phys. ser.)

Sov. J. Nucl. Phys.

Yad. Fiz.

Phys. Rev.

Bull. Am. Phys. Soc.

Phys. Rev.

Nucl. Phys.

Cited by (9)

Nuclear Data Sheets for A = 180

Nuclear data sheets for A = 180

Nuclear data sheets update for A = 180

Nuclear Data Sheets for A = 180

Absolute γ-ray transition probabilities in doubly odd deformed nuclei

Evidence for dipole-quadrupole-octupole mixing in the 902 keV 2<sup>-</sup> → 2<sup>+</sup> transition in <sup>180</sup>W

The decay of 180Os☆

Abstract

CALT-63-60

Nucl. Phys.

Izv. Akad. Nauk. SSSR (ser. fiz.)

Bull. Acad. Sci. USSR (phys. ser.)

Sov. J. Nucl. Phys.

Yad. Fiz.

Phys. Rev.

Bull. Am. Phys. Soc.

Phys. Rev.

Nucl. Phys.

The decay of ¹⁸⁰Os☆