Status of Experimental Data Base Development Relevant to Space Radiation Transport and Protection

This report describes the highlights and progress made in a program of measurements studying radiation transport through materials of interest to NASA. All measurements were performed at accelerator facilities, primarily using GCR-like heavy-ion beams incident upon various elemental and composite targets. Both primary and secondary particles exiting the target were measured. The secondary particles include both charged particles and neutrons. These measurements serve as useful benchmarks and input to transport model calculations.