Patent Number: 051951207
Section: claims

1. In a radiological apparatus comprising at least one X-ray source irradiating an object to be examined that is located at a distance c from said source, and an antiscatter grid with a spatial frequency F.sub.g placed between said object and a receiver located at a distance d from said object, a method enabling the elimination of the image of said antiscatter grid that consists in: keeping the antiscatter grid fixed,  simultaneously irradiating said object by a second source of X-rays having a spatial energy distribution that is substantially identical to that of the first source, and  choosing the distance b between the two X-ray sources so that: ##EQU14## with a magnification ##EQU15##  modifying the distance b between the two X-ray sources when the magnification G varies so as to always have the equality given by: ##EQU16## 2. A method according to claim 1 further consisting in: