The invention relates to a radiology assembly (10) and to a method for aligning such an assembly, comprising: a tube (11) for generating an x-ray beam (12) centred on a main emission direction (13)； and a planar sensor (14) that is substantially perpendicular to the main emission direction (13), said sensor being intended to receive the x-rays (12). According to the invention, the radiology assembly (10) comprises: a first discontinuous emitter (15, 16) made up of two electromagnetic-field emitting portions, said emitter being placed so as to emit a first electromagnetic field in a main direction that is substantially perpendicular to the main emission direction (13), each of the two emitting portions of the discontinuous emitter (15, 16) being positioned on either side of the x-ray beam (12)； electromagnetic-field sensors (29, 30, 31, 32) that are securely fastened to the planar sensor (14) and that are able to detect the electromagnetic fields emitted by the emitters (15, 16) and to generate an electrical signal depending on the detected electromagnetic fields； and a means (17) for processing the electrical signal, which means is intended to determine the relative position of the planar sensor (14) with respect to the generating tube (11).L'invention concerne un ensemble de radiologie (10) et un procédé d'alignement d'un tel ensemble comprenant : un tube générateur (11) d'un faisceau de rayons X (12) centré autour d'une direction principale (13) d'émission, · un capteur plan (14) sensiblement perpendiculaire à la direction principale (13) d'émission, destiné à recevoir les rayons X (12). Selon l'invention, l'ensemble de radiologie (10) comprend : · un premier émetteur interrompu (15, 16) en deux parties d'émetteur de champ électromagnétique, disposé de façon à émettre un premier champ électromagnétique selon une direction principale sensiblement perpendiculaire à la direction principale (13) d'émission, chacune des deux parties d'émetteur de l'émetteur interrompu
