Evaluation of radiation detectors for the determination of field output factors in Leksell Gamma Knife dosimetry using 3D printed phantom inserts

The Leksell Gamma Knife ® (Elekta AB, Stockholm, Sweden) is a stereotactic radiosurgery instrument enabling the delivery of ablative radiation doses to intracranial targets with submillimetric accuracy. The Leksell Gamma Knife® (LGK) Perfexion™ and Icon™ models utilise 192 60Co sources attached to 8 independently mov eable sectors to deliver dose using one of three collimator sizes – 4 mm, 8 mm and 16 mm, with collimators arranged in rings superior to the target. All individual collimators are aligned to deliver dose to a specific position known as the focus position.
Source: Physica Medica: European Journal of Medical Physics - Category: General Medicine Authors: Source Type: research