Measuring method of geometric parameters and / or material state of the object to be investigated by radiation transmission test

摘要

The present invention relates to a method for measuring a geometric parameter of an investigation object by means of a radiation transmission test, the object being able to be described geometrically, and a section passing through the material of the investigation object being a radiation If transmission image exposure data is available, it is determined from the projection of an object such as a tube taken by an X-ray or gamma source. Due to these intercepts passing through the material of the object, that is, the intercept curve, the object under investigation, such as a tube, has dimensions larger than the dimensions of the device (film or detector) used to take the radiographic image Is possible. During the method, the radiation source, the object to be examined and the device (film or detector) used to take a radiographic image are in a fixed position.