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EJNMMI Physics
Fig. 8 | EJNMMI Physics

Fig. 8

From: NEMA NU 1-2018 performance characterization and Monte Carlo model validation of the Cubresa Spark SiPM-based preclinical SPECT scanner

Fig. 8

Planar sensitivity as a function of source-to-collimator distance. For the SPH collimator, measured results are shown with solid red carets and a solid line of best fit, and simulated results are shown with black empty carets and a dashed line of best fit. MPH collimator results are shown as red dots. Fit equations for the SPH collimator measurement and simulation are distinguished in the legend with abbreviated subscripts. The MPH collimator geometry is optimized for increased sensitivity in the tomographic FOV, whereas the SPH collimator sensitivity increases when approaching the pinhole

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