title: Dosimetry measurements and analyses of 10-MV x rays for Clinac-18.
abstract: Radiation parameters for two Varian Clinac-18 10-MV x-ray units were measured and compared with the same parameters for the Toshiba LMR-13 and the Arco Mevatron XII. Comparison of the percentage depth dose, surface dose, and depth of maximum ionization as a function of field size are presented.
mesh_terms: D011878:Radiotherapy / Q000295:instrumentation*; D011879:Radiotherapy Dosage / Q000592:standards*; D013057:Spectrum Analysis; D014867:Water; D014965:X-Rays
chemical_list: D014867:Water