title: Simultaneous X-ray fluorescence and ptychographic microscopy of Cyclotella meneghiniana.
abstract: Scanning X-ray fluorescence microscopy (XFM) is a particularly useful method for studying the spatial distribution of trace metals in biological samples. Here we demonstrate the utility of combining coherent diffractive imaging (CDI) with XFM for imaging biological samples to simultaneously produce high-resolution and high-contrast transmission images and quantitative elemental maps. The reconstructed transmission function yields morphological details which contextualise the elemental maps. We report enhancement of the spatial resolution in both the transmission and fluorescence images beyond that of the X-ray optics. The freshwater diatom Cyclotella meneghiniana was imaged to demonstrate the benefits of combining these techniques that have complementary contrast mechanisms.
authors.affiliation: Australian Research Council Centre of Excellence for Coherent X-ray Science Australia. dvine@aps.anl.gov
authors.forename: D J
authors.initials: DJ
authors.lastname: Vine
authors.forename: D
authors.initials: D
authors.lastname: Pelliccia
authors.forename: C
authors.initials: C
authors.lastname: Holzner
authors.forename: S B
authors.initials: SB
authors.lastname: Baines
authors.forename: A
authors.initials: A
authors.lastname: Berry
authors.forename: I
authors.initials: I
authors.lastname: McNulty
authors.forename: S
authors.initials: S
authors.lastname: Vogt
authors.forename: A G
authors.initials: AG
authors.lastname: Peele
authors.forename: K A
authors.initials: KA
authors.lastname: Nugent