AAPM TG-61 report on kilovoltage X-ray dosimetry: formalisms and applications

The American Association of Physicists in Medicine (AAPM) Radiation Therapy Committee (RTC) Task Group (TG) 61 has been working on a task report on kilovoltage (40 kV/spl les/tube potential/spl les/300 kV) X-ray beam dosimetry for radiotherapy and radiobiology. In this presentation, the authors review the dosimetry and dosimetry protocols for kilovoltage X-ray beams, the physics background of the formalisms used in the TG-61 report, and the clinical aspects of kilovoltage X-ray dosimetry and the TG-61 recommendations.