Thermal diffusion of helium in 238Pu-doped UO2

Z. Talip; T. Wiss; V. Di Marcello; A. Janssen; J. Y. Colle; P. Van Uffelen; P. Raison; R. J M Konings

doi:10.1016/j.jnucmat.2013.10.066

Thermal diffusion of helium in 238Pu-doped UO2

Z. Talip, T. Wiss, V. Di Marcello, A. Janssen, J. Y. Colle, P. Van Uffelen, P. Raison, R. J M Konings

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

Abstract

UO2 samples doped with 0.1 wt.% plutonium oxide have been investigated with the aim to study alpha-damage effects and the behaviour of radiogenic helium in spent nuclear fuel by single effects studies. Characterizations were performed by X-ray diffraction, scanning and transmission electron microscopy. Helium release rate as a function of temperature and total helium quantity were measured using a Knudsen effusion mass spectrometer and a quantitative gas measurement system, respectively. A new model for the simulation of helium release has been developed taking into account single gas atom and bubble motion, trapping, grain and bubble growth. The model, embedded into commercial multiphysics software, provided a good description of the experimental data and correlations for gas-atom and bubble diffusion coefficients have been proposed. Finally, the effect of radiation damage on helium diffusion was assessed by comparing the results of the present study with literature data. © 2013 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	117-127
Number of pages	10
Journal	Journal of Nuclear Materials
Volume	445
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jnucmat.2013.10.066
Publication status	Published - 2014

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title = "Thermal diffusion of helium in 238Pu-doped UO2",

abstract = "UO2 samples doped with 0.1 wt.% plutonium oxide have been investigated with the aim to study alpha-damage effects and the behaviour of radiogenic helium in spent nuclear fuel by single effects studies. Characterizations were performed by X-ray diffraction, scanning and transmission electron microscopy. Helium release rate as a function of temperature and total helium quantity were measured using a Knudsen effusion mass spectrometer and a quantitative gas measurement system, respectively. A new model for the simulation of helium release has been developed taking into account single gas atom and bubble motion, trapping, grain and bubble growth. The model, embedded into commercial multiphysics software, provided a good description of the experimental data and correlations for gas-atom and bubble diffusion coefficients have been proposed. Finally, the effect of radiation damage on helium diffusion was assessed by comparing the results of the present study with literature data. {\textcopyright} 2013 Elsevier B.V. All rights reserved.",

author = "Z. Talip and T. Wiss and {Di Marcello}, V. and A. Janssen and Colle, {J. Y.} and {Van Uffelen}, P. and P. Raison and Konings, {R. J M}",

year = "2014",

doi = "10.1016/j.jnucmat.2013.10.066",

language = "English",

volume = "445",

pages = "117--127",

journal = "Journal of Nuclear Materials",

issn = "0022-3115",

publisher = "Elsevier BV",

number = "1-3",

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TY - JOUR

T1 - Thermal diffusion of helium in 238Pu-doped UO2

AU - Talip, Z.

AU - Wiss, T.

AU - Di Marcello, V.

AU - Janssen, A.

AU - Colle, J. Y.

AU - Van Uffelen, P.

AU - Raison, P.

AU - Konings, R. J M

PY - 2014

Y1 - 2014

N2 - UO2 samples doped with 0.1 wt.% plutonium oxide have been investigated with the aim to study alpha-damage effects and the behaviour of radiogenic helium in spent nuclear fuel by single effects studies. Characterizations were performed by X-ray diffraction, scanning and transmission electron microscopy. Helium release rate as a function of temperature and total helium quantity were measured using a Knudsen effusion mass spectrometer and a quantitative gas measurement system, respectively. A new model for the simulation of helium release has been developed taking into account single gas atom and bubble motion, trapping, grain and bubble growth. The model, embedded into commercial multiphysics software, provided a good description of the experimental data and correlations for gas-atom and bubble diffusion coefficients have been proposed. Finally, the effect of radiation damage on helium diffusion was assessed by comparing the results of the present study with literature data. © 2013 Elsevier B.V. All rights reserved.

AB - UO2 samples doped with 0.1 wt.% plutonium oxide have been investigated with the aim to study alpha-damage effects and the behaviour of radiogenic helium in spent nuclear fuel by single effects studies. Characterizations were performed by X-ray diffraction, scanning and transmission electron microscopy. Helium release rate as a function of temperature and total helium quantity were measured using a Knudsen effusion mass spectrometer and a quantitative gas measurement system, respectively. A new model for the simulation of helium release has been developed taking into account single gas atom and bubble motion, trapping, grain and bubble growth. The model, embedded into commercial multiphysics software, provided a good description of the experimental data and correlations for gas-atom and bubble diffusion coefficients have been proposed. Finally, the effect of radiation damage on helium diffusion was assessed by comparing the results of the present study with literature data. © 2013 Elsevier B.V. All rights reserved.

U2 - 10.1016/j.jnucmat.2013.10.066

DO - 10.1016/j.jnucmat.2013.10.066

M3 - Article

SN - 0022-3115

VL - 445

SP - 117

EP - 127

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

IS - 1-3

ER -

Thermal diffusion of helium in 238Pu-doped UO2

Abstract

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