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. Author manuscript; available in PMC: 2021 Sep 21.
Published in final edited form as: IEEE Trans Radiat Plasma Med Sci. 2021 May 27;5(5):598–618. doi: 10.1109/trpms.2021.3084539

Fig. 7.

Fig. 7.

Illustration of the TOF-PET forward model for two voxels containing activity on an LOR divided into 11 TOF bins. The contribution of a given voxel to a TOF bin is given by the integral of a Gaussian kernel centered on the voxel. Note that every voxel only contributes to a few TOF bins (a smaller part of the LOR) and that any TOF bin only receives contributions from one of the two voxels if the TOF FWHM is much smaller than the distance between the voxels.