An applicator for use in radiation therapy comprises:a main body for holding a radiation source, wherein the main body has a cavity extending along a main axis of the main body in the interior thereof andan absorption body which is movably connected to the main body and influences the radiation emerging from the radiation source in such a way that a preferred radiation direction is defined,wherein the absorption body is movable with respect to the main body in such a way that the preferred radiation direction can be tilted into a plurality of different positions relative to the main axis of the main body.