Figure 5
The visibility of the MP under PCXI varied markedly between the samples. (a) MP3, (b) MP4, (c) MP5 and (d) MP6. All images displayed here were taken with the magnet located ~ 10 mm directly above the capillary tube. The distinct large circular shapes are air bubbles trapped in the capillary tube, and clearly show the black-white edges characteristic of phase contrast imaging. Red boxes contain a contrast-enhanced enlargement. Note that the diameter of the magnet schematic in all Figures is not to scale and is ~ 100 × larger than shown.
