Figure 5.
Autoradiograph (a) showing nine exposures at offsets from 0–8 mm in 1 mm steps, on a single film; (b) details showing measured angles referenced to the horizontal axis of the ring.
Autoradiograph (a) showing nine exposures at offsets from 0–8 mm in 1 mm steps, on a single film; (b) details showing measured angles referenced to the horizontal axis of the ring.