<div class="csl-bib-body">
<div class="csl-entry">Ingerle, D., Iro, M., Hradil, K., Swies, J., Wobrauschek, P., & Streli, C. (2022, June 29). <i>A monochromatic confocal micro X-ray Fluorescence (μXRF) spectrometer using polycapillaries for the lab</i> [Conference Presentation]. EXRS 2022 - European X-ray Spectrometry Conference, Brügge, Belgium. http://hdl.handle.net/20.500.12708/136310</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/136310
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dc.description.abstract
Confocal μXRF is a powerful tool to analyze the spatial distribution of major, minor and trace elements in 3 dimensions. Due to its non-destructiveness, confocal μXRF is suited for a wide range of applications, including biological, geological or cultural heritage samples.
A typical (confocal) μXRF measurement in the lab uses polychromatic excitation, which complicates quantification and fundamental parameter based corrections, and furthermore reduces peak-to-background ratios due to the scattered bremsstrahlung. The goal for the new setup was to remedy these problems, but without sacrificing spatial resolution, and moreover to keep it flexible for transportation and different excitation energies.
The source assembly consists of a water-cooled fine-focus XRD tube and a parallel beam- mirror, which produces a quasi-parallel, monochromatic beam. The presented results were obtained at the Atominstitut using a Molybdenum anode and a fitting mirror for Mo-Kα, but it is intended also to use a combination for Cu-Kα, which is available at the X-Ray Center of TU Wien.
The confocal setup itself consists of two polycapillary half-lenses, one for the source side and one for the detector side, where a 50 mm2 SDD is mounted. Both polycapillaries have a focus size of ~15 μm for Mo-Kα. The second polycapillary can also be exchanged for a custom- designed collimator, in order to perform (non-confocal) μXRF. The alignment of the sample is facilitated by an optical microscope with camera and a second down-looking camera.
Details of the technical setup 1 as well as results from technical and biological samples and a comparison with a polychromatic μXRF setup will be presented.
1 Ingerle, D., Swies, J., Iro, M., Wobrauschek, P., Streli, C., & Hradil, K. (2020). A monochromatic confocal micro-x-ray fluorescence ( μ XRF ) spectrometer for the lab. Rev.Sci.Instrum., 91, 123107. https://doi.org/10.1063/5.0028830
en
dc.language.iso
en
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dc.subject
Micro XRF
en
dc.title
A monochromatic confocal micro X-ray Fluorescence (μXRF) spectrometer using polycapillaries for the lab
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
Atominstitut
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dc.type.category
Conference Presentation
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tuw.researchinfrastructure
Röntgenzentrum
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tuw.researchTopic.id
M2
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tuw.researchTopic.name
Materials Characterization
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tuw.researchTopic.value
100
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tuw.publication.orgunit
E141 - Atominstitut
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tuw.publication.orgunit
E057-04 - Fachbereich Röntgenzentrum
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tuw.author.orcid
0000-0003-2686-7641
-
tuw.author.orcid
0000-0002-6989-2495
-
tuw.author.orcid
0000-0002-3699-3003
-
tuw.author.orcid
0000-0002-5141-3177
-
tuw.event.name
EXRS 2022 - European X-ray Spectrometry Conference
en
tuw.event.startdate
26-06-2022
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tuw.event.enddate
01-07-2022
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tuw.event.online
On Site
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tuw.event.type
Event for scientific audience
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tuw.event.place
Brügge
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tuw.event.country
BE
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tuw.event.institution
Univ. of Antwerp
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tuw.event.presenter
Iro, Michael
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wb.sciencebranch
Chemie
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wb.sciencebranch
Physik, Astronomie
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wb.sciencebranch.oefos
1040
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wb.sciencebranch.oefos
1030
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wb.sciencebranch.value
50
-
wb.sciencebranch.value
50
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item.languageiso639-1
en
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item.openairetype
conference paper not in proceedings
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item.grantfulltext
none
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item.fulltext
no Fulltext
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item.cerifentitytype
Publications
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item.openairecristype
http://purl.org/coar/resource_type/c_18cp
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crisitem.author.dept
E057-04 - Fachbereich Röntgenzentrum
-
crisitem.author.dept
E141-05 - Forschungsbereich Radiation Physics
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crisitem.author.dept
E057-04 - Fachbereich Röntgenzentrum
-
crisitem.author.dept
E330 - Institut für Managementwissenschaften
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crisitem.author.dept
E141 - Atominstitut
-
crisitem.author.dept
E057-04 - Fachbereich Röntgenzentrum
-
crisitem.author.orcid
0000-0003-2686-7641
-
crisitem.author.orcid
0000-0002-6989-2495
-
crisitem.author.orcid
0000-0002-3699-3003
-
crisitem.author.orcid
0000-0002-5141-3177
-
crisitem.author.parentorg
E057 - Facilities und Zentren
-
crisitem.author.parentorg
E141 - Atominstitut
-
crisitem.author.parentorg
E057 - Facilities und Zentren
-
crisitem.author.parentorg
E300 - Fakultät für Maschinenwesen und Betriebswissenschaften
