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E-grāmata: Space Radiation Hazards and the Vision for Space Exploration: Report of a Workshop

  • Formāts: 104 pages
  • Izdošanas datums: 10-Oct-2006
  • Izdevniecība: National Academies Press
  • Valoda: eng
  • ISBN-13: 9780309662918
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  • Formāts: 104 pages
  • Izdošanas datums: 10-Oct-2006
  • Izdevniecība: National Academies Press
  • Valoda: eng
  • ISBN-13: 9780309662918
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Fulfilling the Presidenta (TM)s Vision for Space Exploration (VSE) will require overcoming many challenges. Among these are the hazards of space radiation to crews traveling to the Moon and Mars. To explore these challenges in some depth and to examine ways to marshal research efforts to address them, NASA, NSF, and the NRC sponsored a workshop bringing together members of the space and planetary science, radiation physics, operations, and exploration engineering communities. The goals of the workshop were to increase understanding of the solar and space physics in the environment of Earth, the Moon, and Mars; to identify compelling relevant research goals; and discuss directions this research should take over the coming decade. This workshop report presents a discussion of radiation risks for the VSE, an assessment of specifying and predicting the space radiation environment, an analysis of operational strategies for space weather support, and a summary and conclusions of the workshop.
Executive Summary 1(6)
Radiation Risks and the Vision for Space Exploration
7(17)
The Space Radiation Environment
12(2)
Galactic Cosmic Radiation
13(1)
Solar Energetic Particles
13(1)
Trapped Radiation
14(1)
Secondary Radiation
14(1)
Radiation Risks
14(6)
Hardware Risks
20(2)
References
22(2)
Specifying and Predicting the Space Radiation Environment
24(14)
Heliospheric Magnetic Field
24(1)
Galactic Cosmic Rays
25(1)
Solar Energetic Particles
26(5)
Coronal Mass Ejections
28(2)
Flares and Active Regions
30(1)
Prospects for Long- and Short-Term Forecast Models
31(4)
Long-Term Forecasts (Years to Decades)
31(1)
Short-Term Forecasts (Nowcasts to Days and Weeks)
32(2)
Solar Wind and Heliospheric Models
34(1)
Models for Coronal Mass Ejections and Flares and for Solar Energetic Particles
34(1)
Ongoing Integrated Modeling Activities
35(1)
What Is Possible for the Future?
35(1)
Near-Term Results (Up to 2015)
36(1)
Far-Term Results (After 2015)
36(1)
References
36(2)
Operational Strategies for Space Weather Support
38(16)
Current Operations Support (Space Shuttle and International Space Station Missions in Low Earth Orbit)
38(5)
Preflight and Extravehicular Activity Crew Exposure Projections
39(1)
Radiological Support During Missions
39(1)
Crew Exposure Modeling Capability
40(1)
Radiation Monitoring Instruments and Dosimeters
40(2)
Solar and Space Physics Support Areas for the Future
42(1)
Systems Approach to Providing Space Weather Support to the Vision for Space Exploration
43(9)
Components of a Space Weather Risk Mitigation Architecture
43(3)
Lunar Hardware Elements
46(3)
Mars Hardware Elements
49(3)
Knowledge-to-Operations Transition
52(1)
References
53(1)
Summary and Workshop Conclusions
54
Understanding of Solar Physics
55(1)
Fundamental Understanding of Heliophysics
55(1)
Solar Energetic Particle Event Predictions and Forecast Prospects
56(1)
Long-Timescale Changes in Galactic Cosmic Radiation
56(1)
Worst-Case Solar Particle Events
57(1)
Summary
58
APPENDIXES
Reports of the Working Groups
61(17)
Statement of Task
78(1)
Workshop Participants and Agenda
79(5)
Biographies of Committee Members and Staff
84(5)
Acronyms
89
Ad Hoc Committee on the Solar System Radiation Environment and NASA's Vision for Space Exploration: A Workshop, National Research Council