1. An x-ray diffraction imaging device, comprising: at least one x-ray detector; and at least one scatter collimator positioned upstream of said at least one x-ray detector, said at least one scatter collimator comprising a plurality of successive plates, each successive plate of said plurality of successive plates defining a plurality of rectangular holes, each rectangular hole of the plurality of rectangular holes includes a first dimension and a substantially orthogonal second dimension that does not equal the first dimension, wherein the first dimension increases and the second dimension is substantially constant with said each successive plate in a direction towards said at least one x-ray detector, said plurality of successive plates arranged such that the plurality of rectangular holes define a plurality of widening quadrilateral passages extending through said at least one scatter collimator, wherein each of the plurality of widening quadrilateral passages is configured to increase a rate of detection of first x-rays that define an x-ray transit path enclosed within a single such widening quadrilateral passage, and the plurality of widening quadrilateral passages is configured to decrease a rate of detection of second x-rays that define an x-ray transit path that intersects more than one such widening quadrilateral passage.