Phantom intended for use in quality control of tomographic images

A phantom for use in quality control of tomographic images, and comprising:

• a cylindrical plate made of a uniform material having density d1, said cylindrical plate presenting an axis of revolution;
• two cylinders inserted in the plate, the two cylinders being made of uniform material having different densities d2, d3, the density of one of the two cylinders being greater than the density d1 of the plate, and the density of the other cylinder being less than the density d1 of the plate;
• and
• a first series of pairs of holes of different diameters drilled in the plate, the holes of the first series extending along axes that are parallel to the axis of revolution of the plate, and
• a second series of pairs of holes of different diameters drilled in the plate, the holes of the second series extending along axes perpendicular to the axis of revolution of the plate so that said holes of the second series extend radially in the cylindrical plate.