Planetary and Interplanetary Environmental Models for Radiation AnalysisThe essence of environmental modeling is presented as suited for radiation analysis purposes. The variables of fundamental importance for radiation environmental assessment are discussed. The characterization is performed by dividing modeling into three areas, namely the interplanetary medium, the circumplanetary environment, and the planetary or satellite surface. In the first area, the galactic cosmic rays (GCR) and their modulation by the heliospheric magnetic field as well as and solar particle events (SPE) are considered, in the second area the magnetospheres are taken into account, and in the third area the effect of the planetary environment is also considered. Planetary surfaces and atmospheres are modeled based on results from the most recent targeted spacecraft. The results are coupled with suited visualization techniques and radiation transport models in support of trade studies of health risks for future exploration missions.
Document ID
20070026139
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
DeAngelis, G. (NASA Langley Research Center Hampton, VA, United States)
Cucinotta, F. A. (NASA Johnson Space Center Houston, TX, United States)