Abstract: The present invention relates to a system (S) for creating an ablation volume (20) within a target object (1), comprising: an applicator (2) comprising a head (2a), which applicator (2) is configured to be pinserted into the patient's body so as to position said head (2a) into or close to a target object (1) located inside said body, and wherein the applicator (2) is configured to emit energy (E) provided to the applicator (2) via said head (2a) so as to create an ablation volume (20) comprising at least a region of said target object (1), a tracking system (6) configured to track the pose (4) of the head (2a) with respect to the pose (5) of the target object (1), wherein the tracking system (6) is further configured to provide a signal (6a) indicative of the relative pose of the head (2a) of the applicator (2) with respect to the target object (1), and an energy control unit (10) configured to control emission of said energy (E) by the head (2a) of the applicator (2) in response to said signal (6a).