Basic data for dosage calculation and compensation

Faiz M. Khan, Jeffrey F. Williamson, Wilfred Sewchand, Tae H. Kim

Research output: Contribution to journalArticlepeer-review

40 Scopus citations


Total body irradiation with megavoltage photon beams requires basic dosimetric data which have to be measured directly or derived from the standard data. This paper describes physical aspects of the technique involving 10 MV x-rays and bilateral opposing fields, and pays special attention to calibration, dose calculation and tissue compensation. Also discussed is a method for constructing individualized compensators for specific body regions, including the lungs. Phantom* measurements indicate that dose uniformity of ±5% can be achieved with this technique.

Original languageEnglish
Pages (from-to)745-751
Number of pages7
JournalInternational journal of radiation oncology, biology, physics
Issue number6
StatePublished - Jun 1980


  • Bone marrow transplantation
  • Megavoltage x-rays
  • Radiotherapy dosimetry
  • Total body
  • whole body irradiation


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