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Americium and curium total half-lives and for the spontaneous fission branch

Conference ·
OSTI ID:5646053
The long-lived nuclides of the americium and curium elements are of interest for their use in certain safeguard applications and for nuclear reactor burnup studies in waste management. Recommended values are presented for /sup 241,242m,243/Am, and for /sup 242,243,244,245,246,247,248,250/Cm. These values result from a consistent evaluation of all these half-lives. These preliminary estimates were presented earlier. The uncertainties are provided at the 95% confidence limit for each of the recommended values. It will be noted that many of the recommended errors considerably exceed errors quoted by individual authors in their publication, by up to an order of magnitude, e.g. the total half-life of /sup 242,246,248/Cm and the spontaneous fission half-life of /sup 244/Cm. These preliminary estimates for the half-lives were given previously. Efforts continue to reevaluate the various experiments to better gauge the systematic errors involved and reassess the total error.
Research Organization:
Brookhaven National Lab., Upton, NY (USA)
DOE Contract Number:
AC02-76CH00016
OSTI ID:
5646053
Report Number(s):
BNL-NCS-36551; CONF-8506130-3; ON: DE85012270
Country of Publication:
United States
Language:
English

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Related Subjects

652026* -- Nuclear Properties & Reactions
A=220 & above
Experimental-- Spontaneous & Induced Fission-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
AMERICIUM 241
AMERICIUM 242
AMERICIUM 243
AMERICIUM ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CURIUM 242
CURIUM 243
CURIUM 244
CURIUM 245
CURIUM 246
CURIUM 247
CURIUM 248
CURIUM 250
CURIUM ISOTOPES
DATA
DAYS LIVING RADIOISOTOPES
DECAY
ELECTRON CAPTURE RADIOISOTOPES
EVALUATED DATA
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FISSION
HALF-LIFE
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
INFORMATION
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
RADIOISOTOPES
SPONTANEOUS FISSION
YEARS LIVING RADIOISOTOPES