The equipment (1) has an actuation system (20) whose fixed portion (21) is mounted between the chassis (10) and mobile portion (22) in rod according to a perpendicular direction of oscillator of a curved section (3) of an independent imaging system (2). A pressure screw of linking system (25) is formed between curved section and mobile portion. A control unit of the actuation system is provided to place the linking system in two stable positions corresponding to two different positions of the curved section of the imaging system.