title: Dosimetry for tangential chest wall irradiation.
abstract: The skin-sparing effect of megavoltage photons is lost to a varying extent when tangential beams are used to irradiate the chest wall. The skin dose for this technique, with and without a bolus, was investigated for 4- and 6-MV photons using film, thermoluminescent dosimeters, and an ionization chamber. Metal/tissue interface effects were observed when a flexible brass fabric material was used as a bolus.
mesh_terms: D006801:Humans; D008961:Models, Structural; D011829:Radiation Dosage; D011879:Radiotherapy Dosage; D011882:Radiotherapy, High-Energy; D013909:Thorax / Q000528:radiation effects*