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![[Figure 2]](gf0005fig2mag.jpg)
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Figure 2
Time-resolved radiographic images of a supersonic jet of diesel fuel spray travelling through 1 atm of SF6 gas. Shown are the fuel jet and the Mach cone for time instances of 38, 77, 115, 154 and 192 µs after the start of the injection. The imaged area shown in the largest panel is 61.7 mm (H) by 17.5 mm (V). Images are built up as a mosaic of 13.5 mm (H) by 2.5 mm (V) tiles by shifting the position of the fuel injector relative to the beam and the PAD and repeating the injection cycle. Boundaries between these areas can be seen upon close inspection. Images from some tile positions were not acquired. The exposure time per frame was 5.13 µs with data averaged over 20 injection cycles. The contrast of the shock wave was low, corresponding to only an average of about 15% increase in gas density near the shock front. (From MacPhee et al., 2002  .) |
![[Figure 2]](gf0005fig2.jpg)
 | JOURNAL OF SYNCHROTRON RADIATION |
ISSN: 1600-5775
