High-flux ptychographic imaging using the new 55 µm-pixel detector `Lambda' based on the Medipix3 readout chip

Wilke, R.N.; Wallentin, J.; Osterhoff, M.; Pennicard, D.; Zozulya, A.; Sprung, M.; Salditt, T.

doi:10.1107/S2053273314014545

Acta Crystallographica Section A
Acta Crystallographica
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Figure 5
(a) Phase reconstruction of the standing nanowire (data set 1, Fig. 2

c). (b) shows a diffraction pattern of data set 1. (c) presents a line cut through the phase reconstruction shown in (a) (black dashed line). A fit of a Gaussian function (red line) to the phase profile of the nanowire yields an FWHM value of 305 nm. (d) presents the phase reconstruction of a lying nanowire (data set 2). The thicker top of the nanowire (cf. Figs. 2

a, 2

c) can be clearly identified by a larger phase shift which appears red in the image. The nanowire yields an average phase shift of $[\langle \Delta\Phi _{{\rm body}}\rangle = (-0.034 \pm 0.001)]$ rad on the body (dashed white frame) and $[\langle \Delta\Phi _{{\rm head}}\rangle = (-0.058 \pm 0.001)]$ rad on the head (dash–dotted white frame) after background subtraction (dashed black frame). Scale bars in (a) and (d) denote 500 nm, whereas the scale bar in (b) depicts 10 µm⁻¹.

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ISSN: 2053-2733

Volume 70| Part 6| September 2014| Pages 552-562

doi:10.1107/S2053273314014545

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