Evaluating the diffusion of Kr in UO2 and ADOPTTM using time-of-flight elastic recoil detection analysis (ToF-erda)

Robert J.W. Frost; Denise A. Lopes; Kyle D. Johnson; Sobhan Patnaik; Johan Oscarsson; Mauricio Sortica; Per Petersson; Daniel Primetzhofer

doi:10.1080/00223131.2024.2423639

Evaluating the diffusion of Kr in UO₂ and ADOPT^TM using time-of-flight elastic recoil detection analysis (ToF-erda)

Robert J.W. Frost
, Denise A. Lopes
, Kyle D. Johnson
, Sobhan Patnaik
, Johan Oscarsson
, Mauricio Sortica
, Per Petersson
, Daniel Primetzhofer

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

1 Scopus citations

Abstract

A combination of 300 keV ⁸⁴Kr ion implantation and Time-of-Flight Elastic Recoil Detection Analysis is utilised to investigate the diffusion of Kr in UO₂ and ADOPT^TM fuels. Composition depth-profiles on the nanometer scale were obtained, both for as-implanted samples and after annealing at 800°C for 1 h. Observed drifts in the ⁸⁴Kr profiles could be associated with short-range diffusion mechanisms. The approach employed here provides the possibility to make direct comparisons with atomistic scale modelling data, and can be of service as a separate effect test in line with the Accelerated Fuel Qualification initiative.

Original language	English
Pages (from-to)	243-249
Number of pages	7
Journal	Journal of Nuclear Science and Technology
Volume	62
Issue number	3
DOIs	https://doi.org/10.1080/00223131.2024.2423639
State	Published - 2025
Externally published	Yes

Funding

This work was supported by the Vetenskapsrådet [VR-RFI-2019-00191]. Financial support from Studsvik Nuclear AB within the framework of the ANItA Centre is gratefully acknowledged, as is the financial support from The Swedish Strategic Research Foundation (SSF) within the SUNRISE-project and the financial support from the Swedish Research Council (VR-RFI) under contract number 2019-00191. Financial support from Studsvik Nuclear AB within the framework of the ANItA Centre is gratefully acknowledged, as is the financial support from The Swedish Strategic Research Foundation (SSF) within the SUNRISE-project and the financial support from the Swedish Research Council (VR-RFI) under contract number 2019-00191.

Keywords

ADOPT
Kr implantation
ToF-ERDA
UO
elemental depth-profiling

Access to Document

10.1080/00223131.2024.2423639

Cite this

@article{a97faa0be20841adb5461cce92fe88c3,

title = "Evaluating the diffusion of Kr in UO2 and ADOPTTM using time-of-flight elastic recoil detection analysis (ToF-erda)",

abstract = "A combination of 300 keV 84Kr ion implantation and Time-of-Flight Elastic Recoil Detection Analysis is utilised to investigate the diffusion of Kr in UO2 and ADOPTTM fuels. Composition depth-profiles on the nanometer scale were obtained, both for as-implanted samples and after annealing at 800°C for 1 h. Observed drifts in the 84Kr profiles could be associated with short-range diffusion mechanisms. The approach employed here provides the possibility to make direct comparisons with atomistic scale modelling data, and can be of service as a separate effect test in line with the Accelerated Fuel Qualification initiative.",

keywords = "ADOPT, Kr implantation, ToF-ERDA, UO, elemental depth-profiling",

author = "Frost, \{Robert J.W.\} and Lopes, \{Denise A.\} and Johnson, \{Kyle D.\} and Sobhan Patnaik and Johan Oscarsson and Mauricio Sortica and Per Petersson and Daniel Primetzhofer",

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year = "2025",

doi = "10.1080/00223131.2024.2423639",

language = "English",

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AU - Frost, Robert J.W.

AU - Lopes, Denise A.

AU - Johnson, Kyle D.

AU - Patnaik, Sobhan

AU - Oscarsson, Johan

AU - Sortica, Mauricio

AU - Petersson, Per

AU - Primetzhofer, Daniel

PY - 2025

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N2 - A combination of 300 keV 84Kr ion implantation and Time-of-Flight Elastic Recoil Detection Analysis is utilised to investigate the diffusion of Kr in UO2 and ADOPTTM fuels. Composition depth-profiles on the nanometer scale were obtained, both for as-implanted samples and after annealing at 800°C for 1 h. Observed drifts in the 84Kr profiles could be associated with short-range diffusion mechanisms. The approach employed here provides the possibility to make direct comparisons with atomistic scale modelling data, and can be of service as a separate effect test in line with the Accelerated Fuel Qualification initiative.

AB - A combination of 300 keV 84Kr ion implantation and Time-of-Flight Elastic Recoil Detection Analysis is utilised to investigate the diffusion of Kr in UO2 and ADOPTTM fuels. Composition depth-profiles on the nanometer scale were obtained, both for as-implanted samples and after annealing at 800°C for 1 h. Observed drifts in the 84Kr profiles could be associated with short-range diffusion mechanisms. The approach employed here provides the possibility to make direct comparisons with atomistic scale modelling data, and can be of service as a separate effect test in line with the Accelerated Fuel Qualification initiative.

KW - ADOPT

KW - Kr implantation

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KW - UO

KW - elemental depth-profiling

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