Decontamination factors and release rates of UO2 particles from boiling pools of sodium

Abraham Dayan, Silvia Zalmanovich

Research output: Contribution to journalArticlepeer-review

Abstract

A semi-mechanistic model for calculating solid radionuclide release rates from boiling or bubbling pools of sodium was developed. The influence of particle spacial and size distributions on the decontamination of the releases was analysed and found significant. Decontamination factors are shown as a function of pool depth, bubbling characteristics and particle size distribution. The calculation of a decontamination factor for estimating the source term of large scale hypothetical core disruptive accidents is presented. The decontamination factor for a large scale accident was found to be two orders of magnitude greater than results obtained from small scale experiments conducted with uniform particle distributions.

Original languageEnglish
Pages (from-to)127-132
Number of pages6
JournalNuclear Engineering and Design
Volume74
Issue number1
DOIs
StatePublished - Jan 1983

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