This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Parametric Shielding Strategies for Jupiter Magnetospheric Missions
Technical Paper
2005-01-2834
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Judicious shielding strategies incorporated in the initial spacecraft design phase for the purpose of minimizing deleterious effects to onboard systems in intense radiation environments will play a major role in ensuring overall mission success. In this paper, we present parametric shielding analyses for the three Jupiter Icy Moons, Callisto, Ganymede, and Europa, as a function of time in orbit at each moon, orbital inclination, and various thicknesses, for low- and high-Z shielding materials. Trapped electron and proton spectra using the GIRE (Galileo Interim Radiation Electron) environment model were generated and used as source terms to both deterministic and Monte Carlo high energy particle transport codes to compute absorbed dose as a function of thickness for aluminum, polyethylene, and tantalum. Extensive analyses are also presented for graded-Z materials. Radiation absorbed doses presented in this paper can be utilized by the system designer in the electronic parts selection process.
Recommended Content
Authors
- Bill Atwell - The Boeing Company, NASA Systems
- Brandon Reddell - The Boeing Company, NASA Systems
- Bill Bartholet
- John Nealy
- Martha Clowdsley - NASA Langley Research Center
- Brooke Anderson - NASA Langley Research Center
- Thomas Miller - University of Tennessee, Dept. of Nuclear Engineering
- Lawrence W. Townsend - University of Tennessee, Dept. of Nuclear Engineering
Citation
Atwell, B., Reddell, B., Bartholet, B., Nealy, J. et al., "Parametric Shielding Strategies for Jupiter Magnetospheric Missions," SAE Technical Paper 2005-01-2834, 2005, https://doi.org/10.4271/2005-01-2834.Also In
References
- Williams, D. J. McEntire, R. W. Jaskulek, S. Wilken, B. The Galileo energetic particle detector Space Sci. Rev 60 1–4 385 412 1992
- Garrett, H. B. Jun, I. Ratliff, J. M. Evans, R. W. Clough, G. A. Galileo interim radiation electron model GIRE 2003
- Divine, N. Garrett, H. Charged particle distributions in Jupiter’s magnetosphere J. Geophys. Res 88 (A9) 6889 6903 1983
- McIlwain, C. E. Coordinates for mapping the distribution of magnetically trapped particles J. Geophys. Res 66 3681 1961
- Waters L. S. MCNPX User’s Manual, Version 2.4.0. LA-CP-02-408 Los Alamos National Laboratory Los Alamos, NM 2002