TABLE 1

Percentage of ICS Events in Collimators with Different Crystal Pixel Sizes, Hole Diameters, and Septal Lengths

Type of collimatorHole diameter (mm)Pixel size (mm2)
149
High sensitivity0.50.3400.2300.160
12.331.581.26
1.55.494.103.15
General purpose0.50.1700.1300.066
11.0100.7700.590
1.52.732.061.59
High resolution0.50.10000.05600.0500
10.5100.3400.230
1.51.401.030.76
  • Septal thickness of collimators was 0.2 mm.