Holotomography versus X-ray grating interferometry: A comparative study
X-ray phase-contrast imaging techniques are used at synchrotron facilities to visualize tiny density variations in bulk samples. They overcome the limitations of other non-destructive methods, which often provide insufficient spatial and/or density resolution. Holotomography (HT) and X-ray grating i...
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Veröffentlicht in: | Applied physics letters 2013-12, Vol.103 (24) |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | X-ray phase-contrast imaging techniques are used at synchrotron facilities to visualize tiny density variations in bulk samples. They overcome the limitations of other non-destructive methods, which often provide insufficient spatial and/or density resolution. Holotomography (HT) and X-ray grating interferometry (XGI) are among the most powerful phase-contrast techniques. Here, we show a direct comparison of HT versus XGI. We find that XGI excels in fidelity of the density measurements and is more robust against low-frequency artifacts, while HT is superior in spatial resolution. This study gives indications for applications and developments of phase-contrast imaging. |
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ISSN: | 0003-6951 1077-3118 |
DOI: | 10.1063/1.4848595 |