An X-ray collimator for collimating X-rays from an X-ray source that
illuminate an array of columns and rows of X-ray detectors, the
collimator having a first side that faces the X-ray source and a second
side opposite the first side that faces the detector array, the
collimator comprising: a plurality of strips formed from an X-ray
absorbing material, wherein each strip is corrugated so that it has
rectangular and/or square corrugations; and means for maintaining the
plurality of strips one next to the other with the corrugations of one
strip aligned with corrugations of an adjacent strip to form an array of
rows and columns of square/and or rectangular wells corresponding to the
X-ray detectors in the array.