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EJNMMI Physics
Fig. 1 | EJNMMI Physics

Fig. 1

From: Head-to-head comparison of a Si-photomultiplier-based and a conventional photomultiplier-based PET-CT system

Fig. 1

a The recovery curve (RC) for the NEMA Body phantom (sphere diameter 10–37 mm) with a sphere to background ratio (SBR) of 10:1 at 600 s and 90 s per bed position. The data presented is a mean value of two phantom preparations for the 600 s measurement, and for two phantom preparations and 5 independent acquisitions/reconstructions for the 90 s measurement. b The noise level [the coefficient of variation (COV)] in the background of the phantom at different times per bed position

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