Decomposition of Wavelength Dispersive X-Ray Spectra.
Identifieur interne : 003A95 ( PubMed/Checkpoint ); précédent : 003A94; suivant : 003A96Decomposition of Wavelength Dispersive X-Ray Spectra.
Auteurs : Guy Rémond [Australie] ; Robert Myklebust [États-Unis] ; Michel Fialin [France] ; Clive Nockolds [Australie] ; Matthew Phillips [Australie] ; Claude Roques-Carmes [France]Source :
- Journal of research of the National Institute of Standards and Technology [ 1044-677X ]
Abstract
Line shapes of atomic lines and soft x-ray emission bands measured with a wavelength dispersive spectrometer (WDS) with the Electron Probe Micro Analyzer (EPMA) are reviewed. Least square fitting to pseudo-Voigt profiles of the digitally measured spectra are used to account for the presence of non-diagram features (high and low energy satellites) and instrumental induced distortions. The effect of line width and relative intensities on the quality of fits is illustrated. Spectral distortions resulting from the presence of absorption edges within the analyzed wavelength region are illustrated for the case of FeLα,β emission bands for pure Fe and iron oxides. For quantitative analysis, an analytical approach is presented where the measured soft x-ray emission bands are corrected for self absorption before extracting the intensities from the experimental data.
DOI: 10.6028/jres.107.044
PubMed: 27446750
Affiliations:
- Australie, France, États-Unis
- Bourgogne-Franche-Comté, Franche-Comté, Maryland, Nouvelle-Galles du Sud, Île-de-France
- Besançon, Paris, Sydney
- Université de Sydney
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Least square fitting to pseudo-Voigt profiles of the digitally measured spectra are used to account for the presence of non-diagram features (high and low energy satellites) and instrumental induced distortions. The effect of line width and relative intensities on the quality of fits is illustrated. Spectral distortions resulting from the presence of absorption edges within the analyzed wavelength region are illustrated for the case of FeLα,β emission bands for pure Fe and iron oxides. For quantitative analysis, an analytical approach is presented where the measured soft x-ray emission bands are corrected for self absorption before extracting the intensities from the experimental data.</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">27446750</PMID><DateCreated><Year>2016</Year><Month>07</Month><Day>22</Day></DateCreated><DateCompleted><Year>2016</Year><Month>07</Month><Day>22</Day></DateCompleted><DateRevised><Year>2016</Year><Month>11</Month><Day>02</Day></DateRevised><Article PubModel="Electronic-Print"><Journal><ISSN IssnType="Print">1044-677X</ISSN><JournalIssue CitedMedium="Print"><Volume>107</Volume><Issue>6</Issue><PubDate><MedlineDate>2002 Nov-Dec</MedlineDate></PubDate></JournalIssue><Title>Journal of research of the National Institute of Standards and Technology</Title><ISOAbbreviation>J Res Natl Inst Stand Technol</ISOAbbreviation></Journal><ArticleTitle>Decomposition of Wavelength Dispersive X-Ray Spectra.</ArticleTitle><Pagination><MedlinePgn>509-29</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.6028/jres.107.044</ELocationID><Abstract><AbstractText>Line shapes of atomic lines and soft x-ray emission bands measured with a wavelength dispersive spectrometer (WDS) with the Electron Probe Micro Analyzer (EPMA) are reviewed. Least square fitting to pseudo-Voigt profiles of the digitally measured spectra are used to account for the presence of non-diagram features (high and low energy satellites) and instrumental induced distortions. The effect of line width and relative intensities on the quality of fits is illustrated. Spectral distortions resulting from the presence of absorption edges within the analyzed wavelength region are illustrated for the case of FeLα,β emission bands for pure Fe and iron oxides. For quantitative analysis, an analytical approach is presented where the measured soft x-ray emission bands are corrected for self absorption before extracting the intensities from the experimental data.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Rémond</LastName><ForeName>Guy</ForeName><Initials>G</Initials><AffiliationInfo><Affiliation>Australian Key Centre for Microscopy and Microanalysis, The University of Sydney, NSW 2006, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Myklebust</LastName><ForeName>Robert</ForeName><Initials>R</Initials><AffiliationInfo><Affiliation>National Institute of Standards and Technology, Gaithersburg, MD 20899-0001.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Fialin</LastName><ForeName>Michel</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>Ura 736-CNRS, Université P et M Curie, Paris, France.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Nockolds</LastName><ForeName>Clive</ForeName><Initials>C</Initials><AffiliationInfo><Affiliation>Electron Microsco Unit, The University of Sydney, NSW 2006, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Phillips</LastName><ForeName>Matthew</ForeName><Initials>M</Initials><AffiliationInfo><Affiliation>Microstructural Analysis Unit, University Technology of Sydney, NSW 2007, Australia.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Roques-Carmes</LastName><ForeName>Claude</ForeName><Initials>C</Initials><AffiliationInfo><Affiliation>Laboratoire de Microanalyse des Surfaces, Ecole Nationale de Mécanique et des Microtechniques, Besançon, France.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2002</Year><Month>12</Month><Day>01</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>J Res Natl Inst Stand Technol</MedlineTA><NlmUniqueID>8912688</NlmUniqueID><ISSNLinking>1044-677X</ISSNLinking></MedlineJournalInfo><OtherID Source="NLM">PMC4863852</OtherID><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">WDS instrumental distortions</Keyword><Keyword MajorTopicYN="N">atomic lines</Keyword><Keyword MajorTopicYN="N">distortions induced by absorption edges</Keyword><Keyword MajorTopicYN="N">pseudo-Voigt profiles</Keyword><Keyword MajorTopicYN="N">satellites</Keyword><Keyword MajorTopicYN="N">soft x-ray bands</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="accepted"><Year>2002</Year><Month>08</Month><Day>22</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2016</Year><Month>7</Month><Day>23</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2002</Year><Month>1</Month><Day>1</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2002</Year><Month>1</Month><Day>1</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate></History><PublicationStatus>epublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">27446750</ArticleId><ArticleId IdType="doi">10.6028/jres.107.044</ArticleId><ArticleId IdType="pii">j76rem2</ArticleId><ArticleId IdType="pmc">PMC4863852</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>Australie</li><li>France</li><li>États-Unis</li></country><region><li>Bourgogne-Franche-Comté</li><li>Franche-Comté</li><li>Maryland</li><li>Nouvelle-Galles du Sud</li><li>Île-de-France</li></region><settlement><li>Besançon</li><li>Paris</li><li>Sydney</li></settlement><orgName><li>Université de Sydney</li></orgName></list><tree><country name="Australie"><region name="Nouvelle-Galles du Sud"><name sortKey="Remond, Guy" sort="Remond, Guy" uniqKey="Remond G" first="Guy" last="Rémond">Guy Rémond</name></region><name sortKey="Nockolds, Clive" sort="Nockolds, Clive" uniqKey="Nockolds C" first="Clive" last="Nockolds">Clive Nockolds</name><name sortKey="Phillips, Matthew" sort="Phillips, Matthew" uniqKey="Phillips M" first="Matthew" last="Phillips">Matthew Phillips</name></country><country name="États-Unis"><region name="Maryland"><name sortKey="Myklebust, Robert" sort="Myklebust, Robert" uniqKey="Myklebust R" first="Robert" last="Myklebust">Robert Myklebust</name></region></country><country name="France"><region name="Île-de-France"><name sortKey="Fialin, Michel" sort="Fialin, Michel" uniqKey="Fialin M" first="Michel" last="Fialin">Michel Fialin</name></region><name sortKey="Roques Carmes, Claude" sort="Roques Carmes, Claude" uniqKey="Roques Carmes C" first="Claude" last="Roques-Carmes">Claude Roques-Carmes</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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