The present invention relates to an electrode configured to be fixable relative to a target area within a body, the electrode comprises: a positioning device for tracking variations of a position of the electrode relative to a radiation source, a dose measuring unit to detect administered dose in the target area from the radiation source, and an identification unit. The identification unit and the dose measuring unit are configured to be connectable to an externally arranged control unit via a first pair of electrical connections. The identification unit comprises: an electronic identification tag, and a switch configured to alternate between a first mode in which administered dose from the radiation source may be detected in the dose measuring unit, and a second mode in which the identification tag may be read by the externally arranged control unit.