Nuclear Data Sheets for A = 180

Journal Article · Fri Aug 01 04:00:00 EDT 1975 · Nucl. Data Sheets, v. 15, no. 4, pp. 559-605

DOI:https://doi.org/10.1016/S0090-3752(75)80007-X· OSTI ID:4175281

Greenwood, L. R. ^[1]

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1. Department of Physics, Northwestern University Evanston, Illinois 60201, USA

The 1965 version of the Nuclear Data Sheets has been revised according to experimental data received prior to May 1974, including approximately 120 papers. Data are presented for nine nuclei (Lu, Hf, Ta, W, Re, Os, Ir, Pt, and Hg). Only alpha decay data are available for Hg and Pt. No excited states or gamma transitions are definitely assigned to Lu or Ir. A tentative decay scheme for Ir is presented. The decay schemes for Lu(5.7 m), Ta (>1013 y and 8.1 h), and Re(2.43 m) are well established. The Os(22-m) decay scheme is still rather uncertain because of a lack of precision gamma-ray energies and intensities. The Hf level scheme includes 46 levels (23 Jπ-values), although only the ground-state rotational band has been established. Branching ratios for 179Hf(n,γ), 180mHf(5.5-h) decay, and 180Lu(5.7-m) decay have been compared, and several disagreements are noted. The W level scheme includes 32 levels (16 Jπ-values) with three proposed rotational bands, although several assignments are not well established. The Re level scheme includes 10 levels (3 Jπ-values), all due to Os decay. The Os level scheme includes 10 levels with Jπ-values available only for the ground-state band. The most important deficiency in the data is that very few charged-particle reaction data are available except for (d,p) to Hf and (p,t) to W.

• Research Organization: Northwestern University, Evanstown, Illinois; Brookhaven National Laboratory (BNL), Upton, NY (United States)
• Sponsoring Organization: US Energy Research and Development Administration (ERDA)
• NSA Number: NSA-32-023463
• OSTI ID: 4175281
• Journal Information: Nucl. Data Sheets, v. 15, no. 4, pp. 559-605, Journal Name: Nucl. Data Sheets, v. 15, no. 4, pp. 559-605 Journal Issue: 4 Vol. 15; ISSN NDSBA
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
DATA IRIDIUM 180-- LUTETIUM 180-- MERCURY 180-- PLATINUM 180-- TANTALUM 180
ENERGY LEVELS-- HAFNIUM 180-- OSMIUM 180-- RHENIUM 180-- TUNGSTEN 180
NNDC