Femtosecond laser induced breakdown spectroscopy of silver within surrogate high temperature gas reactor fuel coated particles

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dc.contributor.authorRoberts D.E.
dc.contributor.authorDu Plessis A.
dc.contributor.authorSteyn J.
dc.contributor.authorBotha L.R.
dc.contributor.authorStrydom C.A.
dc.contributor.authorVan Rooyen I.J.
dc.date.accessioned2011-05-15T16:02:33Z
dc.date.available2011-05-15T16:02:33Z
dc.date.issued2010
dc.description.abstractThe detection of metallic silver on Chemical Vapour Deposited (CVD) grown silicon carbide and in Pebble Bed Modular Reactor (PBMR) supplied tri-structural isotropic (TRISO) coated particles (with 500 μm diameter zirconium oxide surrogate kernel) has been studied with femtosecond Laser Induced Breakdown Spectroscopy (femto-LIBS). The SiC layer of the TRISO coated particle is the main barrier to metallic and gaseous fission products of which 110mAg is of particular interest for direct cycle high temperature reactors. This work is a feasibility study for diagnosing and profiling silver transport through the silicon carbide layer of fuel particles for a high temperature gas reactor in out-of-reactor experimentation. The zirconium oxide is a surrogate for the enriched uranium oxide fuel. The conclusion reached in this study was that femto-LIBS can achieve good surface spatial resolution and good depth resolution for studies of silver in experimental coated particles. The LIBS technique also offers a good alternative for a remote analytical technique. © 2010 Elsevier B.V. All rights reserved.
dc.description.versionArticle
dc.identifier.citationSpectrochimica Acta - Part B Atomic Spectroscopy
dc.identifier.citation65
dc.identifier.citation11
dc.identifier.issn5848547
dc.identifier.other10.1016/j.sab.2010.09.001
dc.identifier.urihttp://hdl.handle.net/10019.1/12523
dc.subjectAnalytical techniques
dc.subjectChemical vapours
dc.subjectCoated particles
dc.subjectDepth resolution
dc.subjectEnriched uranium
dc.subjectFeasibility studies
dc.subjectFemto-LIBS
dc.subjectFemto-second laser
dc.subjectFuel particles
dc.subjectHigh-temperature gas reactor fuels
dc.subjectMetallic silver
dc.subjectSpatial resolution
dc.subjectTRISO fuel coated particles
dc.subjectZirconium oxide
dc.subjectChemical detection
dc.subjectChemical vapor deposition
dc.subjectCoating techniques
dc.subjectFission products
dc.subjectGas cooled reactors
dc.subjectHigh temperature gas reactors
dc.subjectMetallic compounds
dc.subjectNuclear fuels
dc.subjectPebble bed modular reactors
dc.subjectPulsed laser applications
dc.subjectSilicon carbide
dc.subjectSilver
dc.subjectSpectroscopic analysis
dc.subjectUltrashort pulses
dc.subjectUranium
dc.subjectUranium carbide
dc.subjectUranium dioxide
dc.subjectZirconia
dc.subjectZirconium
dc.subjectCoated fuel particles
dc.titleFemtosecond laser induced breakdown spectroscopy of silver within surrogate high temperature gas reactor fuel coated particles
dc.typeArticle
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