Table 1 Geometric specifications of pinhole collimators
Aperturea | SPH | MPH |
|---|---|---|
Pinhole diameter (mm) | 1.0 | 1.0 |
Pinhole acceptance angle (\(^{\circ }\)) | 90.0 | 25.0 |
Number of pinholes | 1 | 25 |
Thickness (mm) | 10.0 | 10.0 |
Radius of rotation (mm) | 28.0 | 28.0 |
Aperture-to-detector distanceb (mm) | 26.75 | 26.75 |
Reconstructed axial FOV (mm) | 57.0 | 14.0 |
Reconstructed transaxial FOV (mm) | 46.0 | 30.0 |