LETdistributions and radiation doses due to cosmic rays
Abstract
A radiation transport calculation of all nuclides in cosmic rays has been carried out for elements H to Ni. (The unattenuated flux at solar min, outside the magnetosphere is 10 to the 8th/sq cm year). The computer code treats nuclear spallation reactions, ionization losses and geomagnetic effects. LETdistributions and radiation doses due to cosmic rays can be calculated at any point in spacecraft and at various depths in any material. Results of sample calculations, including single event upsets, are presented. Hydrogenous materials are shown to be more effective than aluminum for shielding against the highLET components that penetrate soft upsets.
 Publication:

IEEE Transactions on Nuclear Science
 Pub Date:
 December 1983
 DOI:
 10.1109/TNS.1983.4333146
 Bibcode:
 1983ITNS...30.4405S
 Keywords:

 Cosmic Rays;
 Heavy Nuclei;
 Linear Energy Transfer (Let);
 Radiation Distribution;
 Radiation Dosage;
 Energy Spectra;
 Hydrogen Compounds;
 Hydrogen Isotopes;
 Nickel Isotopes;
 Radiobiology;
 Single Event Upsets;
 Spacecraft Shielding;
 Space Radiation