Patent ID: 9144408
Filing Date: 2015-09-29
Classification: A61B,G01T,G21K

Abstract:
1. A scan unit for scanning and collecting ionizing radiation emitted from a radiation emitting object, the scan unit comprising: an array of at least one pixelated radiation detector having an imaging surface including a two-dimensional (2D) array of pixels; and a collimator positioned between the radiation detector and the radiation emitting object, the collimator including a 2D array of columns having openings and septa forming bores, wherein the columns are arranged in groups along rows of the 2D array of columns, and the bores within one of the groups having a different aspect ratio than the bores in another one of the groups, wherein the collimator includes a plurality of periodic structures, each of the periodic structures containing the columns that are arranged in groups along rows of the 2D array of columns.