Fig. 3From: Initial evaluation of the Celesteion large-bore PET/CT scanner in accordance with the NEMA NU2-2012 standard and the Japanese guideline for oncology FDG PET/CT data acquisition protocol version 2.0The activity-rate curves. The curves of total, true, random, and scatter events are shown on the right and that of NECR is shown on the left. The peak NECR was 70 kcps when the phantom contained 29.6 kBq mL−1 Back to article page