title: Calculation of energy distributions of charged particles produced by neutrons from 0.14 to 65 MeV in tissue substitutes.
abstract: Energy distributions of secondary charged particles were calculated in tissue substitutes irradiated by neutrons from 0.14 to 65 MeV, using the Particle and Heavy Ion Transport code System. The calculations were compared with experimental data measured by tissue equivalent proportional counters (TEPC). It is found that the calculated distributions of the lineal energy, y, generally agree well with the measured ones for neutrons from several 100 keV to 15 MeV. In the case of 40 and 65 MeV neutron irradiations, wall effects of TEPC should be considered and the fluence of alphas is underestimated by the calculations. Integrated dose contributions of the secondary charged particles are generally in good agreement with those of the measured ones.
authors.affiliation: Japan Atomic Energy Agency (JAEA), Shirakata-Shirane 2-4, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan. tsuda.shuichi@jaea.go.jp
authors.forename: S
authors.initials: S
authors.lastname: Tsuda
authors.forename: Y
authors.initials: Y
authors.lastname: Nakane
authors.forename: Y
authors.initials: Y
authors.lastname: Yamaguchi
mesh_terms: D001822:Body Burden; D003198:Computer Simulation; D004307:Dose-Response Relationship, Radiation; D004735:Energy Transfer / Q000502:physiology*; D006801:Humans; D007477:Ions; D008954:Models, Biological; D009502:Neutrons; D011829:Radiation Dosage; D011874:Radiometry / Q000379:methods*; D012062:Relative Biological Effectiveness; D012542:Scattering, Radiation; D055672:Static Electricity
chemical_list: D007477:Ions