title: An examination of some methods of improving the depth dose characteristics of cyclotron-produced fast neutron beams.
mesh_terms: D001608:Beryllium; D002244:Carbon; D005374:Filtration; D008094:Lithium; D009502:Neutrons; D009688:Nuclear Reactors; D011879:Radiotherapy Dosage; D013679:Technology, Radiologic; D014885:Waxes
chemical_list: D014885:Waxes; D002244:Carbon; D008094:Lithium; D001608:Beryllium