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. Author manuscript; available in PMC: 2008 Apr 4.
Published in final edited form as: IEEE Trans Nucl Sci. 2007;54(3):475–479. doi: 10.1109/TNS.2007.897826

Fig. 2.

Fig. 2

A sketch of the HCB collimator and the Defrise disk phantom used in the simulations. Focal length is 50 cm, ROR is 13 cm. The dark stripes in the phantom sketch correspond to the solid disks. The white stripes are water filled with activity.