Patient activation with a 25 MV therapeutic X-ray beam.
D000008:Abdominal Neoplasms / Q000532:radiotherapy; D005720:Gamma Rays; D006801:Humans; D010386:Pelvic Neoplasms / Q000532:radiotherapy; D011851:Radioactivity; D011882:Radiotherapy, High-Energy; D012588:Scintillation Counting