Axial distribution of cesium in heterogeneous FBR fuel pins

H. Furuya; S. Ukai; S. Shikakura; Y. Tsuchiuchi; K. Idemitsu

doi:10.1016/0022-3115(93)90158-U

Axial distribution of cesium in heterogeneous FBR fuel pins

H. Furuya, S. Ukai, S. Shikakura, Y. Tsuchiuchi, K. Idemitsu

Quantum Sciences of Materials

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

The axial migration behavior of cesium was investigated in two kinds of axially heterogeneous (U, Pu)O₂ fuel pins with different configurations of internal blanket position irradiated to $ ̃70 GWd/t. The axial distribution of cesium was measured nondestructively by a γ-ray intensity scanning and destructively by an electron probe microanalyzer. A reasonably good agreement between the experimental and analytical results was obtained by applying a model based on a two-stage process proposed by Adamson. The radial distribution could be explained by assuming a rapid migration down temperature gradient within the solid fuel. The evaporation-condensation process not only across the pellet-pellet interfaces, but also across cracks played an important role in the axial migration.

Original language	English
Pages (from-to)	46-53
Number of pages	8
Journal	Journal of Nuclear Materials
Volume	201
Issue number	C
DOIs	https://doi.org/10.1016/0022-3115(93)90158-U
Publication status	Published - May 2 1993

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Materials Science(all)
Nuclear Energy and Engineering

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10.1016/0022-3115(93)90158-U

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title = "Axial distribution of cesium in heterogeneous FBR fuel pins",

abstract = "The axial migration behavior of cesium was investigated in two kinds of axially heterogeneous (U, Pu)O2 fuel pins with different configurations of internal blanket position irradiated to ${\~ }70 GWd/t. The axial distribution of cesium was measured nondestructively by a γ-ray intensity scanning and destructively by an electron probe microanalyzer. A reasonably good agreement between the experimental and analytical results was obtained by applying a model based on a two-stage process proposed by Adamson. The radial distribution could be explained by assuming a rapid migration down temperature gradient within the solid fuel. The evaporation-condensation process not only across the pellet-pellet interfaces, but also across cracks played an important role in the axial migration.",

author = "H. Furuya and S. Ukai and S. Shikakura and Y. Tsuchiuchi and K. Idemitsu",

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T1 - Axial distribution of cesium in heterogeneous FBR fuel pins

AU - Furuya, H.

AU - Ukai, S.

AU - Shikakura, S.

AU - Tsuchiuchi, Y.

AU - Idemitsu, K.

PY - 1993/5/2

Y1 - 1993/5/2

N2 - The axial migration behavior of cesium was investigated in two kinds of axially heterogeneous (U, Pu)O2 fuel pins with different configurations of internal blanket position irradiated to $ ̃70 GWd/t. The axial distribution of cesium was measured nondestructively by a γ-ray intensity scanning and destructively by an electron probe microanalyzer. A reasonably good agreement between the experimental and analytical results was obtained by applying a model based on a two-stage process proposed by Adamson. The radial distribution could be explained by assuming a rapid migration down temperature gradient within the solid fuel. The evaporation-condensation process not only across the pellet-pellet interfaces, but also across cracks played an important role in the axial migration.

AB - The axial migration behavior of cesium was investigated in two kinds of axially heterogeneous (U, Pu)O2 fuel pins with different configurations of internal blanket position irradiated to $ ̃70 GWd/t. The axial distribution of cesium was measured nondestructively by a γ-ray intensity scanning and destructively by an electron probe microanalyzer. A reasonably good agreement between the experimental and analytical results was obtained by applying a model based on a two-stage process proposed by Adamson. The radial distribution could be explained by assuming a rapid migration down temperature gradient within the solid fuel. The evaporation-condensation process not only across the pellet-pellet interfaces, but also across cracks played an important role in the axial migration.

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JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

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Axial distribution of cesium in heterogeneous FBR fuel pins

Abstract

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