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 Θm between 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).
