title: Further backscatter studies and their application in megavoltage photon therapy.
mesh_terms: D003037:Cobalt Radioisotopes / Q000627:therapeutic use; D006801:Humans; D008961:Models, Structural; D010315:Particle Accelerators; D011827:Radiation; D011882:Radiotherapy, High-Energy / Q000379:methods*; D012542:Scattering, Radiation
chemical_list: D003037:Cobalt Radioisotopes