The invention relates to an X-ray imaging apparatus (2), comprising: a source (4) for generating X-ray radiation, an object receiving space (6) for arranging an object of interest for X-ray imaging, an X-ray collimator arrangement (8) arranged between the source (4) and the collimator arrangement (8), and an X-ray mirror arrangement (10). The mirror arrangement (10) comprises for example two tapered mirrors (22) facing each other and adapted for guiding X-ray radiation of the source (4) to the collimator arrangement (8). Consequently, the X-ray intensity at the object receiving space (6) is increased. In order to limit the X-ray radiation to an area, where the X-ray radiation can be utilized form imaging, an angle of spread Θmbetween the mirrors (22) and a length LM of each mirror (22) is adapted, such that a number of total reflections of X-ray radiation, provided by the source (4), at the mirrors (22) is limited. The limitation provides the effect that an angle of reflection Θr of the totally reflected X-ray radiation is limited. Consequently, an X-ray intensity at the object receiving space (6) is increased while constrains are provided, which prevent a large increase of a width of the X-ray radiation provided at the object receiving space (6), which effectively improves an imaging quality of an object of interest being arrangeable at the object receiving space (6).L'invention concerne un appareil d'imagerie par rayons X (2), comprenant : une source (4) pour générer un rayonnement de rayons X, un espace de réception d'objet (6) pour agencer un objet d'intérêt pour imagerie par rayons X, un agencement de collimateur de rayons X (8) disposé entre la source (4) et l'agencement de collimateur (8), et un agencement de miroirs à rayons X (10). L'agencement de miroirs (10) comprend par exemple deux miroirs coniques (22) l'un en face de l'autre et adaptés pour guider un rayonnement de rayons X de la source (4) à l'agencement de collimateur (8). En conséquence, l'intensit
