Method for determining the geometric parameters and / or material state of an object under investigation by radiography

摘要

The invention relates to a method of determining the geometric parameters of an object under investigation by radiography, the object being described mathematically, and the intercepting through the material of the object being irradiated may utilize exposure data of the radiographic image And may be determined from the projection of an object, e.g., a tube, that is imaged by an X-ray or gamma ray source. These intercepts, or intercept curves, that pass through the material of the object allow the object under investigation, e.g., the tube, to have dimensions that are larger than the dimensions of the device (film / detector) used to acquire the radiographic image. During the course of the method, the source of radiation, the object under investigation and the device (film / detector) used to acquire the radiographic image are in a fixed position.