The present invention relates to an apparatus (10) as well as a method for generating X-ray radiation, in particular for generating an X-ray radiation field, comprising an electron source (11) for generating an electron beam (12) as well as a target (13) for generation of X-ray radiation, in particular of an X-ray radiation field by electrons of the electron beam (12) impinging on the target (13). The present invention is characterized in that, the apparatus (10) is designed for generating an adjustable and/or changeable X-ray radiation, in particular for generating an adjustable and/or changeable X-ray radiation field, and in that the apparatus (10) has a variation appliance (15) for varying of at least one parameter of the electron beam source (11) and/or the electron beam (12) for influencing the X-ray radiation, in particular the X-ray radiation field.電子ビームを発生させるための電子源(11)、及び標的(13)に衝突する前記電子ビーム(12)の電子により、X線照射、特にX線照射野を発生させるための前記標的(13)を含む、X線照射を発生させるための、特にX線照射野を発生させるための装置(10)であって、前記装置(10)が、調整可能な及び/又は変更可能なX線照射を発生させるように、特に調整可能な及び/又は変更可能なX線照射野を発生させるように設計されており、前記装置(10)が、前記X線照射、特に前記X線照射野に影響を及ぼすための、前記電子ビーム源(11)及び/又は前記電子ビーム(12)の少なくとも1つのパラメーターを変化させるための変動器(15)を有する。
