The invention relates to an applicator (1) for use in radiation therapy. The applicator comprises: a main part (2) for receiving a radiation source, wherein the main part (2) has a hollow chamber in the main part interior, and the hollow chamber extends along a main axis (A) of the main part; and an absorption body (4) which is movably connected to the main part (2) and which influences the radiation exiting the radiation source such that a preferred radiation direction is defined. The absorption body (4) can be moved relative to the main part (2) such that the preferred radiation direction can be tilted relative to the main axis (A) of the main part into a plurality of different positions.