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Completed TRL 3 (started at 2, targeting 3)
Insufficient data exist to validate thick shield space radiation exposure predictions. This task seeks to validate the shielding efficiency of spacecraft materials and verify an optimum Galactic Cosmic Ray (GCR) shield thickness needed for minimal mass vehicle design.
Identification of optimal GCR shield thicknesses and quantification of the uncertainty associated with shielding efficiency for thick shields will enable minimal mass vehicle design and reduce uncertainty in astronaut risk predictions.
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