TABLE 3

Calculated Fan Beam Geometric Efficiency (Embedded Image) at Various z Values and Angles

Source–collimator surface distance (cm)
Angle (degree)z = 10z = 15
1.621612.002415.6770
3.241911.944915.6010
4.859511.849715.4770
6.473311.718015.3050
8.081811.551215.0870
9.683911.351014.8260
11.278311.119614.5236
12.863810.859514.1838
14.439310.573213.8099
16.003510.263613.4055
17.55559.933712.9746
19.09429.586412.5211
20.61869.225012.0490
22.12778.852311.5623
23.62068.471511.0648