title: Measurement of neutron leakage spectra at a 500-MeV proton accelerator.
abstract: We have measured the neutron leakage spectra at a number of representative locations outside the shielding of a 500-MeV proton accelerator using a multisphere technique and the 12C(n,2n)11C reaction in a plastic scintillator. The inclusion of the 12C(n,2n)11C reaction in the set of responses has a pronounced effect on the shape of the unfolded neutron spectra and the ambient dose equivalent rate calculated from them.
authors.affiliation: TRIUMF, Vancouver, B.C.
authors.forename: L E
authors.initials: LE
authors.lastname: Moritz
mesh_terms: D009502:Neutrons; D010315:Particle Accelerators; D011522:Protons; D011835:Radiation Protection; D012588:Scintillation Counting / Q000295:instrumentation
chemical_list: D011522:Protons