1. A method for calibrating a PET scanner, comprising the steps of: acquiring first phantom sinogram data from a scan of a solid cylinder phantom within a PET scanner imaging FOV; acquiring second phantom sinogram data from a scan of a second phantom within the PET scanner imaging FOV, the second phantom selected from the group comprising a solid plane phantom and a scanning line phantom; and determining a PET scanner detector component scanner efficiency normalization from at least one of the first and second sinogram data.