Spatial Resolved Dispersive X-Ray Absorption Spectroscopy and Coded Aperture X-Ray Fluorescence Imaging
- One aim of this work was the development of a new setup for time- and laterally resolved XAFS measurements, based on the pronciple of dispersive XAFS. This setup is scanning free, stable, inexpensive, and straightforward to adjust for probing different elements. The second part of this work describes the impelemntation of a method for full-field X-ray fluorescence imaging with coded apertures. Expensive and complicated X-ray otpics, that are usually used for full-field imaging, are replaced with a coded aperture that consists of many pinholes drilled in an X-ray opaque material. Coded apertures are inexpensive to fabricate, energy independent and easy to use. The working principle is the same as with a pinhole camera, but the multiple holes allow a higher photon flux compared to a single pinhole or even a polycalippary optic, thus alowwing the reduction of measurement time.
Autor*innen: | Anicó KulowORCiD |
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Dokumenttyp: | Dissertation |
Veröffentlichungsform: | Graue Literatur |
Sprache: | Englisch |
Jahr der Erstveröffentlichung: | 2021 |
Organisationseinheit der BAM: | 6 Materialchemie |
6 Materialchemie / 6.3 Strukturanalytik | |
Titel verleihende Institution: | Technische Universität Wien |
Gutachter*innen: | H. Lichtenegger, G. Pepponi |
Datum der Abschlussprüfung: | 14.01.2021 |
Verlagsort: | Berlin |
Erste Seite: | 1 |
Letzte Seite: | 175 |
DDC-Klassifikation: | Naturwissenschaften und Mathematik / Chemie / Analytische Chemie |
Freie Schlagwörter: | Coded Apertures; Synchrotron; X-ray absorption spectroscopy; X-ray fluorescence imaging |
Themenfelder/Aktivitätsfelder der BAM: | Chemie und Prozesstechnik |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 28.01.2021 |
Referierte Publikation: | Nein |