Semi-transparent central stop in high-resolution X-ray ptychography using Kirkpatrick-Baez focusing

Wilke, Robin Niklas; Vassholz, Malte; Salditt, Tim

doi:10.1107/S0108767313019612

Verlagslink DOI:	10.1107/S0108767313019612
Titel:	Semi-transparent central stop in high-resolution X-ray ptychography using Kirkpatrick-Baez focusing
Sprache:	Englisch
Autorenschaft:	Wilke, Robin Niklas Vassholz, Malte Salditt, Tim
Schlagwörter:	ptychography; Kirkpatrick–Baez mirrors; semi-transparent central stop; semi-transparent beam stop; coherent diffractive imaging; phase reconstruction
Erscheinungsdatum:	14-Aug-2013
Verlag:	Wiley
Zeitschrift oder Schriftenreihe:	Acta crystallographica. Section A, Foundations and advances
Zeitschriftenband:	69
Zeitschriftenausgabe:	5
Anfangsseite:	490
Endseite:	497
Zusammenfassung:	A ptychographic coherent X-ray diffractive imaging (PCDI) experiment has been carried out using 7.9 keV X-rays and Kirkpatrick–Baez focusing mirrors. By introducing a semi-transparent central stop in front of the detector the dynamic range on the detector is increased by about four orders of magnitude. The feasibility of this experimental scheme is demonstrated for PCDI applications with a resolution below 10 nm. The results are compared with reference data and an increase of resolution by a factor of two is obtained, while the deviation of the reconstructed phase map from the reference is below 1%.
URI:	http://hdl.handle.net/20.500.12738/15590
ISSN:	1600-5724
Begutachtungsstatus:	Diese Version hat ein Peer-Review-Verfahren durchlaufen (Peer Review)
Einrichtung:	Georg-August-Universität Göttingen
Dokumenttyp:	Zeitschriftenbeitrag
Enthalten in den Sammlungen:	Publications without full text