Dosimetry of irregularly shaped radiation therapy fields. I. Some factors influencing inhomogeneity.
D003036:Cobalt Isotopes; D005374:Filtration; D006258:Head and Neck Neoplasms / Q000532:radiotherapy*; D006689:Hodgkin Disease / Q000532:radiotherapy; D006801:Humans; D008722:Methods; D008961:Models, Structural; D011867:Radioisotope Teletherapy; D011879:Radiotherapy Dosage; D013899:Thoracic Neoplasms / Q000532:radiotherapy*
D003036:Cobalt Isotopes