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Ground-based simulations of cosmic ray heavy ion interactions in spacecraft and planetary habitat shielding materialsThis paper surveys some recent accelerator-based measurements of the nuclear fragmentation of high energy nuclei in shielding and tissue-equivalent materials. These data are needed to make accurate predictions of the radiation field produced at depth in spacecraft and planetary habitat shielding materials and in the human body by heavy charged particles in the galactic cosmic radiation. Projectile-target combinations include 1 GeV/nucleon 56Fe incident on aluminum and graphite and 600 MeV/nucleon 56Fe and 290 MeV/nucleon 12C on polyethylene. We present examples of the dependence of fragmentation on material type and thickness, of a comparison between data and a fragmentation model, and of multiple fragments produced along the beam axis.
Document ID
20040089192
Acquisition Source
Langley Research Center
Document Type
Reprint (Version printed in journal)
Authors
Miller, J.
(Lawrence Berkeley National Laboratory Berkeley, CA 94720, United States)
Zeitlin, C.
Heilbronn, L.
Borak, T.
Carter, T.
Frankel, K. A.
Fukumura, A.
Murakami, T.
Rademacher, S. E.
Schimmerling, W.
Stronach, C.
Chatterjee, A.
Date Acquired
August 21, 2013
Publication Date
January 1, 1998
Publication Information
Publication: Acta astronautica
Volume: 42
Issue: 8-Jan
ISSN: 0094-5765
Subject Category
Aerospace Medicine
Funding Number(s)
CONTRACT_GRANT: NAG1-1527
CONTRACT_GRANT: L1-4230C
CONTRACT_GRANT: W-18265
Distribution Limits
Public
Copyright
Other
Keywords
NASA Discipline Radiation Health
Non-NASA Center

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