Depth-selective x-ray diffraction using energy-dispersive x-ray detector and straight capillary optics

Depth-selective x-ray diffraction (XRD) technique was developed. In this technique, XRD spectra were measured using an energy dispersive (ED) x-ray detector at fixed angles. A straight capillary optic was used to define the incident x-ray beam, and a second straight capillary defined the beam path f...

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Veröffentlicht in:Review of scientific instruments 2024-06, Vol.95 (6)
Hauptverfasser: Fukumoto, Shotaro, Okuda, Masaki, Matsuyama, Tsugufumi, Tsuji, Kouichi
Format: Artikel
Sprache:eng
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Zusammenfassung:Depth-selective x-ray diffraction (XRD) technique was developed. In this technique, XRD spectra were measured using an energy dispersive (ED) x-ray detector at fixed angles. A straight capillary optic was used to define the incident x-ray beam, and a second straight capillary defined the beam path from the sample to detector. Thereby, only the XRD spectrum at the small intersection of two capillary optics could be obtained. A depth-selective XRD is possible by changing the sample position in depth. Many XRD peaks appear in a high-energy range more than 10 keV in the ED spectrum. The detection of these peaks will be advantageous for depth analysis because of low absorption in the sample. Depth-selective measurement would be advantageous over general XRD. In this study, depth-selective and ED-XRD spectra are demonstrated for the layered sample, which consisted of film-like Si powder and a muscovite film.
ISSN:0034-6748
1089-7623
1089-7623
DOI:10.1063/5.0191425