Predictions of dose from electrons in space

Details Predictions of dose from electrons in space Predictions of dose from electrons in space

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992stin...9315580s&link_type=abstract

Technical Progress Report National Inst. of Standards and Technology, Gaithersburg, MD. Ionizing Radiation Div.

Other

Bremsstrahlung, Data Bases, Dosage, Electrons, Extraterrestrial Radiation, Radiation Hazards, Spacecraft Shielding, Aluminum, Monte Carlo Method, Protons, Tables (Data), Thickness

Scientific paper

The objective of the project is to develop a general-purpose, user-friendly computerized database and code package, for the PC as well as larger computers, which can be used for the routine prediction of the absorbed dose from incident electrons and their secondary bremsstrahlung (and from incident protons) as functions of the thickness of aluminum shielding in space. The assumption of homogeneous aluminum shields and of isotropic incident fluxes (at least in a time-averaged sense) allows for the rather reliable conversion of doses in slabs to those in other simple bodies, such as spherical and cylindrical solids and shells. On such a basis, depth-dose data for monoenergetic incident radiation can be generated once-and-for-all from accurate transport calculations, and this database can then be used repeatedly in rapid dose predictions for arbitrary radiation spectra and for a variety of spacecraft sizes and shapes, without recourse to the very time-consuming Monte Carlo calculations. This project entails a thorough updating, extension, and refinement of our earlier SHIELDOSE package, with the goal of a more reliable, fool-proof, and general system.

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