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  Indian J Med Microbiol
 

Figure 6: A spheric object is imaged by (a) a pinhole collimator; a circular projection was created, (b) a skew slit collimator; an elliptical projection was created. A small cone angle in the axial direction could reduce the data insufficiency artifacts, (c) a multipinhole collimator, and (d) a multi skew slit collimator provide a desire transaxial resolution, detector area usage, and minimum multiplexing effect

Figure 6: A spheric object is imaged by (a) a pinhole collimator; a circular projection was created, (b) a skew slit collimator; an elliptical projection was created. A small cone angle in the axial direction could reduce the data insufficiency artifacts, (c) a multipinhole collimator, and (d) a multi skew slit collimator provide a desire transaxial resolution, detector area usage, and minimum multiplexing effect