Inverted Hartmann mask for single-shot phase-contrast x-ray imaging of dynamic processes

In this Letter, we present the application of the inverted Hartmann mask for time-resolved single-shot phase-contrast x-ray imaging. The inverted Hartmann mask is a periodic array of free-standing gold pillars. The array is manufactured by UV lithography and electroplating. Time-resolved measurement...

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Veröffentlicht in:Optics letters 2019-05, Vol.44 (9), p.2306-2309
Hauptverfasser: Zakharova, Margarita, Reich, Stefan, Mikhaylov, Andrey, Vlnieska, Vitor, Rolo, Tomy Dos Santos, Plech, Anton, Kunka, Danays
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Sprache:eng
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Zusammenfassung:In this Letter, we present the application of the inverted Hartmann mask for time-resolved single-shot phase-contrast x-ray imaging. The inverted Hartmann mask is a periodic array of free-standing gold pillars. The array is manufactured by UV lithography and electroplating. Time-resolved measurements are performed for imaging of pulsed laser ablation in liquids using white-beam synchrotron radiation. The inverted Hartmann mask in combination with a single-shot imaging technique provides sufficient differential phase contrast even at very short exposure times. It can be effectively used for phase-contrast x-ray imaging of fast dynamic processes with temporal resolution on the millisecond scale.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.44.002306