Nuclear Radiation Fields on the Mars Surface: Risk Analysis for Long-term Living Environment 2005-01-2833
Mars, our nearest planet outward from the sun, has been targeted for several decades as a prospective site for expanded human habitation. Background space radiation exposures on Mars are expected to be orders of magnitude higher than on Earth. Recent risk analysis procedures based on detailed dosimetric techniques applicable to sensitive human organs have been developed along with experimental data regarding cell mutation rates resulting from exposures to a broad range of particle types and energy spectra. In this context, simulated exposure and subsequent risk for humans in residence on Mars are examined. A conceptual habitat structure, CAD-modeled with duly considered inherent shielding properties, has been implemented. Body self-shielding is evaluated using NASA standard computerized male and female models. The background environment is taken to consist not only of exposure from incident cosmic ray ions and their secondaries, but also include the contribution from secondary neutron fields produced in the tenuous atmosphere and the underlying regolith.
Citation: Anderson, B., Clowdsley, M., Qualls, G., and Nealy, J., "Nuclear Radiation Fields on the Mars Surface: Risk Analysis for Long-term Living Environment," SAE Technical Paper 2005-01-2833, 2005, https://doi.org/10.4271/2005-01-2833. Download Citation
Author(s):
Brooke M. Anderson, Martha S. Clowdsley, Garry D. Qualls, John E. Nealy
Affiliated:
NASA Langley Research Center
Pages: 10
Event:
International Conference On Environmental Systems
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 2005 Transactions Journal of Aerospace-V114-1
Related Topics:
Risk assessments
Radiation
Soils
Sun and solar
Particulate matter (PM)
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »