title: A mathematical model of aircraft for evaluating the effects of shielding structure on aircrew exposure.
abstract: To investigate the influence of the aircraft structures and contents on the exposure of aircrew to the galactic component of cosmic rays, a mathematical model of an aeroplane has been developed. The irradiation of the mathematical model in the cosmic ray environment has been simulated using the Monte Carlo transport code FLUKA. Effective dose andambient dose-equivalent rates have been determined inside the aircraft at several locations along the fuselage at a typicaI civil aviation altitude. A significant effect of the shielding of aircraft structures has been observed on the ambient dose-equivalent rates, while the impact on the effective dose rates seems to be minor. Care should be taken in positioning the detectors onboard when the measurements are aimed at validating the codes.
authors.affiliation: CERN, 1211 Geneva 23, Switzerland.
authors.forename: A
authors.initials: A
authors.lastname: Ferrari
authors.forename: M
authors.initials: M
authors.lastname: Pelliccioni
authors.forename: R
authors.initials: R
authors.lastname: Villari
mesh_terms: D000337:Aerospace Medicine / Q000295:instrumentation / Q000379:methods; D000401:Aircraft / Q000295:instrumentation*; D001822:Body Burden; D003198:Computer Simulation; D017076:Computer-Aided Design; D003359:Cosmic Radiation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006801:Humans; D015233:Models, Statistical; D009010:Monte Carlo Method; D016273:Occupational Exposure / Q000032:analysis*; D011829:Radiation Dosage; D011835:Radiation Protection / Q000379:methods*; D011874:Radiometry / Q000295:instrumentation* / Q000379:methods*; D012062:Relative Biological Effectiveness; D018570:Risk Assessment / Q000379:methods; D012307:Risk Factors; D012984:Software