Stand for holding a radiation detector for a radiation therapy device, as well as a radiation therapy device having a stand for holding a radiation detector. In order to integrate a radiation detector (2) in a space-saving manner in a radiation therapy device (26), at least one stand (1) is provided in order to hold the radiation detector (2), in particular in such a manner that it can be moved in a linear- movement direction (7) and can be pivoted about a pivoting axis (8) the radiation therapy device (26) has a gantry (27), a first radiation source (28) and the stand (1), by means of which the radiation detector (2) can on the one hand be moved to at least one examination position within the radiation area (30) of the first radiation source (28), and on the other hand can be moved to a parked position, outside the radiation area (30), in the opposite direction to a first radiation direction (29) from the first radiation source (29), with respect to the examination position.
