A note on the galactic radiation exposure in geomagnetically unprotected regions of space

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100 1 ⊔ ‡aSchaefer, Hermann J., ‡eauthor.
245 1 2 ‡aA note on the galactic radiation exposure in geomagnetically unprotected regions of space / ‡cHermann J. Schaefer..
264 ⊔ 1 ‡aPensacola, Florida : ‡bU.S. Naval Aerospace Medical Institute, Naval Aerospace Medical Center, ‡c1966.
300 ⊔ ⊔ ‡a14 pages : ‡billustrations ; ‡c28 cm.
336 ⊔ ⊔ ‡atext ‡btxt ‡2rdacontent
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490 0 ⊔ ‡aNAMI ; ‡v982
500 ⊔ ⊔ ‡a"Bureau of Medicine and Surgery, MF022.03.02-5001.36, NASA Order No. R-75."--title page.
500 ⊔ ⊔ ‡aJoint report of the United States Naval Aerospace Medical Institute and the National Aeronautics and Space Administration.--cover.
500 ⊔ ⊔ ‡a"28 October 1966."
504 ⊔ ⊔ ‡aIncludes bibliographical references (page 14)
520 ⊔ ⊔ ‡aMeasurements of the galactic flux at low rigidities during the Years of the Quiet Sun 1964-65 indicate that the galactic radiation is still modulated at solar minimum with the differential flux at low rigidities strongly depressed. Thus it is assumed that, in space systems of low shielding, no exceptionally large skin doses in a human target will result. This is quite different from that occurring from trapped radiation and solar particle beams. A conservative estimate for the total dose from galactic radiation at solar minimum including secondaries for 2pi incidence is 50 millirads/24 hours with 5 to 8 per cent of this dose produced by high LET components. If life shortening is used as criterion for long-term effects, the quoted exposure corresponds to a factor of 0.2 in the sense that 100 days of exposure would shorten the residual life span by 20 days. (Author).
538 ⊔ ⊔ ‡aMode of access: Internet.
650 ⊔ 0 ‡aExtraterrestrial radiation ‡xPhysiological effect.
650 ⊔ 0 ‡aSpace flight ‡xSafety measures.
710 1 ⊔ ‡aUnited States. ‡bNavy Department. ‡bBureau of Medicine and Surgery. ‡0http://id.loc.gov/authorities/names/n50080510 ‡1http://id.loc.gov/rwo/agents/n50080510
710 1 ⊔ ‡aUnited States. ‡bNational Aeronautics and Space Administration. ‡0http://id.loc.gov/authorities/names/n78087581 ‡1http://id.loc.gov/rwo/agents/n78087581
710 2 ⊔ ‡aNaval Aerospace Medical Institute (U.S.) ‡0http://id.loc.gov/authorities/names/n79094495 ‡1http://id.loc.gov/rwo/agents/n79094495
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