Abstract: A collimator for an X-ray inspection apparatus is provided comprising a carrier having a planar top surface; an arcuate base disposed on the carrier, comprising at least one arcuate bar section made from a radio-opaque material; and a plurality of radio-opaque collimator plates disposed on the arcuate base in a radial array with a bottom edge of each collimator plate in contact with the top surface of the arcuate base. A method for assembling such a collimator is also provided, as well as an alignment fixture useful for practicing the described method. The described structure, method, and alignment fixture permit the construction of large collimator assemblies while maintaining precision and minimizing cost.

Abstract: A collimator for an X-ray inspection apparatus is provided comprising a carrier having a planar top surface; an arcuate base disposed on the carrier, comprising at least one arcuate bar section made from a radio-opaque material; and a plurality of radio-opaque collimator plates disposed on the arcuate base in a radial array with a bottom edge of each collimator plate in contact with the top surface of the arcuate base. A method for assembling such a collimator is also provided, as well as an alignment fixture useful for practicing the described method. The described structure, method, and alignment fixture permit the construction of large collimator assemblies while maintaining precision and minimizing cost.