Abstract
Accurate knowledge of polonium evaporation
from lead–bismuth eutectic (LBE) is crucial for the design
of accelerator driven nuclear systems in which LBE is used
as target material or coolant. In this work we investigated
the relation between the oxygen content and its distribution
in liquid LBE samples and polonium evaporation from
these samples at 400 C. A fraction of the polonium was
rapidly released, and we found a correlation between the
amount of this fast-released polonium and the amount of
oxygen concentrated in an oxide layer on top of the LBE
sample. A qualitative model describing the polonium
evaporation behavior in relation to oxygen content and
distribution in polonium-doped LBE samples is outlined.
Original language | English |
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Pages (from-to) | 597-605 |
Journal | Journal of Radioanalytical and Nuclear Chemistry |
Volume | 309 |
Issue number | 2 |
DOIs | |
State | Published - 21 Aug 2015 |