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Spectroscopic imaging with single acquisition ptychography and a hyperspectral detector

DOI: 10.1038/s41598-019-48642-y DOI Help

Authors: Darren Batey (Diamond Light Source) , Silvia Cipiccia (Diamond Light Source; University of Strathclyde) , Frederic Van Assche (Ghent University) , Sander Vanheule (Ghent University) , Juriaan Vanmechelen (Ghent University) , Matthieu N. Boone (Ghent University) , Christoph Rau (Diamond Light Source; University of Manchester; Northwestern University)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Scientific Reports , VOL 9

State: Published (Approved)
Published: August 2019
Diamond Proposal Number(s): 22099

Open Access Open Access

Abstract: We present a new method of single acquisition spectroscopic imaging with high spatial resolution. The technique is based on the combination of polychromatic synchrotron radiation and ptychographic imaging with a recently developed energy discriminating detector. We demonstrate the feasibility with a Ni-Cu test sample recorded at I13-1 of the Diamond Light Source, UK. The two elements can be clearly distinguished and the Ni absorption edge is identified. The results prove the feasibility of obtaining high-resolution structural and chemical images within a single acquisition using a polychromatic X-ray beam. The capability of resolving the absorption edge applies to a wide range of research areas, such as magnetic domains imaging and element specific investigations in biological, materials, and earth sciences. The method utilises the full available radiation spectrum and is therefore well suited for broadband radiation sources.

Journal Keywords: Imaging techniques; Physics; X-rays

Subject Areas: Technique Development, Physics


Instruments: I13-1-Coherence

Documents:
s41598-019-48642-y.pdf