Patent ID: 6678352
Filing Date: 2004-01-13
Classification: G01N,G03B,G21K

Abstract:
An anti-scatter X-ray raster, for placing between a radiation detector and an object under study, said anti-scatter X-ray raster comprising:a plurality of channels for X-ray transporting connected together to form a cellular structure, walls of the said channels comprising a material capable of absorbing X-rays, wherein said channels are tubular with the orientation of the walls of all said channels being in a same in a longitudinal direction and the walls are in a form of cylindrical surface or a lateral surface of a prism and form a honeycomb structure and the walls of the neighboring channels are fused with each other; and an input end of said channels and an output end of said channels, wherein the input end and output end of the said channels are placed in two parallel planes, being perpendicular to the longitudinal direction of the said channels, wherein the largest cross size d of a single channel and its length H meet a relationship 2d/H>&thgr;c where &thgr;c=&ohgr;p/E is the critical angle of total external reflection of X-rays from the walls of the channels transporting X-rays, for the material of the walls,  is the Planck constant, &ohgr;p is the plasma frequency of the material of the channels' walls, E is energy of radiation quanta.