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Space radiation transport properties of polyethylene-based compositesComposite materials that can serve as both effective shielding materials against cosmic-ray and energetic solar particles in deep space, as well as structural materials for habitat and spacecraft, remain a critical and mission enabling component in mission planning and exploration. Polyethylene is known to have excellent shielding properties due to its low density, coupled with high hydrogen content. Polyethylene-fiber reinforced composites promise to combine this shielding effectiveness with the required mechanical properties of structural materials. Samples of polyethylene-fiber reinforced epoxy matrix composite 1-5 cm thick were prepared at the NASA Marshall Space Flight Center and tested against a 500 MeV/nucleon Fe beam at the HIMAC facility of NIRS in Chiba, Japan. This paper presents measured and calculated results for the radiation transport properties of these samples.
Document ID
20050148157
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Kaul, R. K.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Barghouty, A. F.
Dahche, H. M.
Date Acquired
August 23, 2013
Publication Date
November 1, 2004
Publication Information
Publication: Annals of the New York Academy of Sciences
Volume: 1027
ISSN: 0077-8923
Subject Category
Aerospace Medicine
Distribution Limits
Public
Copyright
Other

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