Science and Technology of Nuclear Installations / 2012 / Article / Tab 5

Review Article

The Fukushima Event: The Outline and the Technological Background

Table 5

Fraction of radioactivity release from spent fuel pool to reactor building following “zirconium-fire” (NUREG 4982, 1987).

Fission product categoryFraction of initial inventory*Notes

Noble gases1.0
Alkali Metals1.0Conservative value. Large uncertainty.
Tellurium0.021.0 in the case of Sb.
Noble Metals 0.10 in the case of Co.
Lanthanides 0.01 in the case of Nb.

* “Decontamination factor”.

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