TABLE 15

PRODUCTION OF 14 C IN NUCLEAR REACTORS
(adapted from Tait et al. 1980)

Fission production: 1.84 10 -5 moles 14 C per kilogram of uranium initially in the fuel or 1.11  10 19 atoms/kg uranium.

Total carbon isotope production ( 12 C, 13 C and 14 C) in the fuel: 8.47 10 -3 moles of carbon per kilogram of uranium initially in the fuel or 5.1 10 21 atoms/kg uranium.

Relative 14 C production: <0.2% of the carbon isotopes.

Activity of 14 C produced: 4.26 10 7  Bq per kilogram of initial uranium.

Production of 14 C relative to other radionuclides produced from impurities: 11 of 64

Fraction of activity of 14 C relative to all radionuclides produced from fuel impurities: 0.000968%


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