Patent ID: 9727961
Date: 2017-08-08
CPC Classifications: G01N,G01T,G01V,G06T

Claim:
1. A method for operating a system for radiographic inspection of articles, the method comprising the steps of: transporting, in a travel direction, an article being inspected on a modular conveyor chain that comprises a plurality of identical modular segments that are joined together by hinges to form a closed loop chain; emitting scanning rays from a radiation source, the radiation source arranged so that the scanning rays traverse both the article and at least a portion of the modular conveyor chain; receiving the scanning rays in a radiation detector comprising a plurality of photodiodes; converting the received scanning rays in the radiation detector into detector signals; and generating, from the detector signals, a generated radiographic image in a processor, the processor programmed to eliminate, in the generated radiographic image, a background image that is caused essentially by the conveyor chain segments and by factors inherent in the radiation detector, through the use of a calibration mode and an inspection mode, wherein the calibration mode comprises the steps of: wherein the inspection mode comprises the steps of: