A Dynamic/Anisotropic Low Earth Orbit (LEO) Ionizing Radiation ModelThe International Space Station (ISS) provides the proving ground for future long duration human activities in space. Ionizing radiation measurements in ISS form the ideal tool for the experimental validation of ionizing radiation environmental models, nuclear transport code algorithms, and nuclear reaction cross sections. Indeed, prior measurements on the Space Transportation System (STS; Shuttle) have provided vital information impacting both the environmental models and the nuclear transport code development by requiring dynamic models of the Low Earth Orbit (LEO) environment. Previous studies using Computer Aided Design (CAD) models of the evolving ISS configurations with Thermo Luminescent Detector (TLD) area monitors, demonstrated that computational dosimetry requires environmental models with accurate non-isotropic as well as dynamic behavior, detailed information on rack loading, and an accurate 6 degree of freedom (DOF) description of ISS trajectory and orientation.
Document ID
20070004574
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Badavi, Francis F. (Christopher Newport Univ. Newport News, VA, United States)
West, Katie J. (Duke Univ. Durham, NC, United States)
Nealy, John E. (Old Dominion Univ. Norfolk, VA, United States)
Wilson, John W. (NASA Langley Research Center Hampton, VA, United States)
Abrahms, Briana L. (Brandeis Univ. Waltham, MA, United States)
Luetke, Nathan J. (Lockheed Martin Corp. Hampton, VA, United States)