Reconstruction for coded aperture full-field x-ray fluorescence imaging
- X-ray fluorescence imaging is a well-established tool in materials characterization. In this work, we present the adaption of coded aperture imaging to full-field X-ray fluorescence imaging at the synchrotron. Coded aperture imaging has its origins in astrophysics, and has several advantages: Coded apertures are relatively easy to fabricate, achromatic, allow a high photon throughput, and high angular acceptance. Coded aperture imaging is a two-step-process, consisting of the measurement process and a reconstruction step. Different programs have been written, for the raytracing/forward projection and the reconstruction. Experiments with coded aperture in combination with a Color X-ray Camera and an energy-dispersive area detector, have been conducted at the BAMline. Measured samples were successfully reconstructed, and gave a 9.1-fold increase in count rate compared to a polycapillary optic.
Autor*innen: | Anicó KulowORCiD, Ana de Oliveira Guilherme BuzanichORCiD, Uwe Reinholz, Franziska EmmerlingORCiD, S. Hampel, UEA Fittschen, C. Streli, Martin RadtkeORCiD |
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Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Advances in x-ray analysis |
Jahr der Erstveröffentlichung: | 2022 |
Organisationseinheit der BAM: | 6 Materialchemie |
6 Materialchemie / 6.3 Strukturanalytik | |
Herausgeber (Institution): | International Centre for Diffraction Data |
Verlag: | Cambridge University Press |
Verlagsort: | Cambridge |
Jahrgang/Band: | 65 |
Erste Seite: | 57 |
Letzte Seite: | 70 |
DDC-Klassifikation: | Naturwissenschaften und Mathematik / Chemie / Analytische Chemie |
Freie Schlagwörter: | BAMline; Coded Aperture; Synchrotron |
Themenfelder/Aktivitätsfelder der BAM: | Chemie und Prozesstechnik |
Chemie und Prozesstechnik / Chemische Charakterisierung und Spurenanalytik | |
ISSN: | 1097-0002 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 23.11.2022 |
Referierte Publikation: | Nein |