Title :
Monte Carlo calculations of the influence on aircraft radiation environments of structures and solar particle events
Author :
Dyer, Clive ; Lei, Fan
Author_Institution :
Space Dept., QinetiQ, Hampshire, UK
fDate :
12/1/2001 12:00:00 AM
Abstract :
Radiation transport codes are applied to calculate the influence of aircraft structure and loads on the internal environment from galactic cosmic rays. Significant shielding effects are predicted, while thermalization of the neutron flux can lead to enhanced single-event upset rates in devices containing boron. The enhanced environments due to large solar particle events are calculated and shown to be very important for both single-event effects in electronics and dose to crew and passengers
Keywords :
Monte Carlo methods; aerospace biophysics; avionics; cosmic ray neutrons; galactic cosmic rays; neutron transport theory; radiation hardening (electronics); shielding; Monte Carlo calculations; active radiation monitors; aircraft electronics; aircraft radiation environments; crew dose; differential energy spectra; galactic cosmic rays; hard errors; highly ionizing interactions; internal environment; neutron flux thermalization; radiation hazard; radiation transport codes; secondary neutrons; shielding effects; single-event upset rates; soft errors; solar particle events; Aerospace electronics; Aircraft; Atmosphere; Atmospheric measurements; Boron; Cosmic rays; Extraterrestrial measurements; Monte Carlo methods; Neutrons; Sea measurements;
Journal_Title :
Nuclear Science, IEEE Transactions on
