Construction of auxiliary diaphragms for megavoltage irradiation of large, irregularly shaped fields.
D003036:Cobalt Isotopes / Q000627:therapeutic use; D004407:Dysgerminoma / Q000532:radiotherapy; D006801:Humans; D008722:Methods; D009362:Neoplasm Metastasis / Q000532:radiotherapy; D011879:Radiotherapy Dosage; D013679:Technology, Radiologic / Q000295:instrumentation*
D003036:Cobalt Isotopes