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Weight optimization methods in space radiation shield designAn empirical relation between proton range and material density is used to examine relations between shield weight, geometry, and material composition for shielding against a space proton environment. The optimum material resulting in minimum shield weight usually lies at the extremes of either the lightest or heaviest materials. Aluminum, which has special prominence in the space program, appears universally suboptimal as a radiation shielding material. Assuming square-box geometry (rectangular prisms with two square faces), the optimum shape for the shielded objects is found to be a cube, although moderate deviations from a cube result in only a small weight penalty.
Document ID
19760042063
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Wilson, J. W.
(NASA Langley Research Center Environmental and Space Sciences Div., Hampton, Va., United States)
Date Acquired
August 8, 2013
Publication Date
December 1, 1975
Publication Information
Publication: Journal of Spacecraft and Rockets
Volume: 12
Subject Category
Spacecraft Design, Testing And Performance
Accession Number
76A25029
Distribution Limits
Public
Copyright
Other

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