Uranium half-lives: a critical review
The experimental data are evaluated and values for the spontaneous fission half-life of /sup 238/U and the total half-lives for /sup 232/U, /sup 233/U, /sup 234/U, /sup 235/U, /sup 236/U, and /sup 238/U are recommended. Also the variation of the isotopic abundance of /sup 234/U in nature and the error involved in the assumption of secular equilibrium between /sup 234/U and /sup 238/U in the determination of the specific activity of natural uranium samples are discussed. The recommended half-life values and 95% confidence limits are: /sup 238/U spontaneous fission: 8.09 +- 0.26 x 10/sup 15/ years; /sup 232/U total: 69.8 +- 1.0 years; /sup 233/U total: 1.592 +- 0.002 x 10/sup 5/ years; /sup 234/U total: 2.454 +- 0.006 x 10/sup 5/ years; /sup 235/U total: 7.037 +- 0.011 x 10/sup 8/ years; /sup 236/U total: 2.342 +- 0.003 x 10/sup 7/ years /sup 238/U total: 4.468 +- 0.005 x 10/sup 9/ years.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 5632099
- Report Number(s):
- BNL-NCS-51320; ON: DE82006842
- Country of Publication:
- United States
- Language:
- English
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A=220 & above
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A=220 & above
Experimental-- Spontaneous & Induced Fission-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ABUNDANCE
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY
ALPHA DECAY RADIOISOTOPES
DATA
DECAY
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
FISSION
HALF-LIFE
HEAVY NUCLEI
INFORMATION
ISOMERIC TRANSITION ISOTOPES
ISOTOPE RATIO
ISOTOPES
MINUTES LIVING RADIOISOTOPES
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
RADIOISOTOPES
RECOMMENDATIONS
SPONTANEOUS FISSION
URANIUM 232
URANIUM 233
URANIUM 234
URANIUM 235
URANIUM 236
URANIUM 238
URANIUM ISOTOPES
YEARS LIVING RADIOISOTOPES