PPT Slide
DHCI tomograph (70 cm diameter, 50 cm axial FOV)
BGO ring tomograph (82.5 cm diameter, 15.5 cm axial FOV)
Slat collimators or septa (2D mode) reduce sensitivity to randoms, scatter and singles (and thus dead time) - but sensitivity to trues also reduced
Large-angle singles stopped
Large-angle scatters stopped
Large-angle trues stopped