Figure 5From: Multiple window spatial registration error of a gamma camera: 133Ba point source as a replacement of the NEMA procedure Vector plot of differences in positions between low (marked x) and high energy positions for the nuclides 67 Ga and 133 Ba for a collimator hole size of 5 mm and the 9.5 mm thick detector. For better visibility the differences are scaled by a factor of 40.Back to article page