[The design of aluminium wedge filter for use on cobalt-60 teletherapy].
D000535:Aluminum; D003036:Cobalt Isotopes / Q000627:therapeutic use; D011867:Radioisotope Teletherapy / Q000295:instrumentation*; D011879:Radiotherapy Dosage
D003036:Cobalt Isotopes; D000535:Aluminum