Loading…

Simulation of "radiation sealing" of an intergrain boundary and the influence of this effect on the release of gaseous fission products from UO sub(2)

A new model is developed for radiation sealing of intergrain boundaries under low-temperature irradiation conditions. The model agrees with the physical concepts concerning the mechanisms of athermal diffusion and radiation re-solution of gas bubbles. The model makes it possible to explain the exper...

Full description

Saved in:
Bibliographic Details
Published in:Atomic energy (New York, N.Y.) N.Y.), 2000-06, Vol.88 (6), p.462-469
Main Authors: Dobrov, B V, Kanyukova, V D, Kurchatov, SYu, Likhanskii, V V, Khoruzhii, O V
Format: Article
Language:English
Subjects:
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A new model is developed for radiation sealing of intergrain boundaries under low-temperature irradiation conditions. The model agrees with the physical concepts concerning the mechanisms of athermal diffusion and radiation re-solution of gas bubbles. The model makes it possible to explain the experimentally observed sharp irradiation temperature dependence of gas release at low temperatures, even though the athermal radiation-stimulated transfer mechanisms predominate. The model was integrated into a mechanistic RTOP code and verified on experimental data, including Halden project data. 2 figures, 25 references.
ISSN:1063-4258
1573-8205
DOI:10.1007/BF02673469