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. Author manuscript; available in PMC: 2011 Nov 7.
Published in final edited form as: IEEE Nucl Sci Symp Conf Rec (1997). 2006;5:3151–3153. doi: 10.1109/NSSMIC.2006.356543

Fig. 6.

Fig. 6

After tracking a photon the energy-weighted centroid and detected energy for a block are computed using all the interactions in the active area of that block. In this case we would use only the first, third and fourth interactions as the second interaction occurred in the front cover.