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EJNMMI Physics
Fig. 8 | EJNMMI Physics

Fig. 8

From: Design and implementation of a prototype head and neck phantom for the performance evaluation of gamma imaging systems

Fig. 8

Left-hand side: planar HGC gamma images of the simulated thyroid gland at a 120 mm collimator-to-surface distance acquired with different acquisition times ranging from 100 to 400 s using both pinhole collimators (0.5 and 1.0 mm diameter). Right-hand side: count profiles plot for the data acquired from anterior gamma images for the simulated thyroid gland (400 s) using 0.5 and 1.0 mm diameter pinhole collimators. The yellow line in both thyroid gamma images (400 s) represents the cross-section area of the acquired data for both count profiles

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