A one dimensional X-ray image sensor consists of a plurality of unit detecting devices aligned in a row and a filter which covers a portion thereof and is made of a material having an X-ray absorption coefficient equal to or nearly equal to that of a target material to be inspected. An X-ray inspection...http://www.google.com/patents/US5177776?utm_source=gb-gplus-sharePatent US5177776 - One dimensional X-ray image sensor with a correction filter and X-ray inspecting apparatus using the same
