title: Neutron energy spectra and dose-distribution spectra of cyclotron-produced neutron beams.
abstract: Neutron energy spectra and spectra of dose deposition in tissue-equivalent material have been measured for neutron sources produced by 16-, 22-, 35-, and 45.5-MeV deuterons and 22.5-, 35-, 45-, and 65.5-MeV protons incident upon a thick beryllium target. Neutron spectra were measured using time-of-flight techniques and the dose distribution was measured using a 1/2 in. spherical "tissue-equivalent" proportional counter filled with "tissue-equivalent" gas.
mesh_terms: D001608:Beryllium; D003903:Deuterium; D005214:Fast Neutrons; D009502:Neutrons; D011522:Protons; D014894:Weights and Measures
chemical_list: D011522:Protons; D003903:Deuterium; D001608:Beryllium