The spontaneous fission rate of U-238 and fission track dating

Details The spontaneous fission rate of U-238 and fission track dating The spontaneous fission rate of U-238 and fission track dating

Sep 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975gecoa..39.1279w&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 39, Issue 9, pp.1279-1286

Physics

4

Scientific paper

The rate of spontaneous fission decay of uranium-238 ( f 238 ) was determined in 4 -geometry by the fission track method. Uranium glasses of known age of manufacture were used. Spontaneous tracks have accumulated since the time of manufacture and induced tracks to determine the uranium content were produced by thermal neutron irradiations. Spontaneous tracks in all glasses were found to be partially annealed. By correcting for this annealing effect, a ( f 238 ) = 8.7 ± 0.6 × 10 -17 yr -1 was obtained. Uncertainty in the neutron dose is the largest source of error.

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