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Title: Emerging Radiation Health-Risk Mitigation Technologies

Past space missions beyond the confines of the Earth's protective magnetic field have been of short duration and protection from the effects of solar particle events was of primary concern. The extension of operational infrastructure beyond low-Earth orbit to enable routine access to more interesting regions of space will require protection from the hazards of the accumulated exposures of Galactic Cosmic Rays (GCR). There are significant challenges in providing protection from the long-duration exposure to GCR: the human risks to the exposures are highly uncertain and safety requirements places unreasonable demands in supplying sufficient shielding materials in the design. A vigorous approach to future radiation health-risk mitigation requires a triage of techniques (using biological and technical factors) and reduction of the uncertainty in radiation risk models. The present paper discusses the triage of factors for risk mitigation with associated materials issues and engineering design methods.
Authors:
 [1] ;  [2] ;  [3]
  1. NASA Langley Research Center, Hampton, VA 23681 (United States)
  2. NASA Johnson Space Center, Houston, TX 77058 (United States)
  3. NASA Headquarters, Washington, DC 20546 (United States)
Publication Date:
OSTI Identifier:
20632892
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 699; Journal Issue: 1; Conference: STAIF 2004: 21. symposium on space nuclear power and propulsion: Human space exploration, space colonization, new frontiers and future concepts, Albuquerque, NM (United States), 8-11 Feb 2004; Other Information: DOI: 10.1063/1.1649656; (c) 2004 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
61 RADIATION PROTECTION AND DOSIMETRY; BIOLOGICAL RADIATION EFFECTS; DESIGN; ENGINEERING; HEALTH HAZARDS; HUMAN FACTORS; HUMAN POPULATIONS; MAGNETIC FIELDS; MITIGATION; PRIMARY COSMIC RADIATION; RADIATION PROTECTION; RISK ASSESSMENT; SAFETY; SHIELDING MATERIALS; SOLAR PARTICLES; SPACE; SPACE VEHICLES