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Visual phenomena induced by cosmic rays and accelerated particlesExperiments, conducted at cyclotrons together with observations by Apollo astronauts, suggest with little doubt that cosmic nuclei interacting with the visual apparatus cause the phenomenon of light flashes seen on translunar and transearth coast over the past four Apollo missions. Other experiments with high and low energy neutrons and a helium ion beam suggest that slow protons and helium ions with a stopping power greater than 10 to the 8th power eV/gram sq cm can cause the phenomenon in the dark adapted eye. It was demonstrated that charged particles induced by neutrons and helium ions can stimulate the visual apparatus. Some approaches to understanding the long term mission effects of galactic cosmic nuclei interacting with man and his nervous system are outlined.
Document ID
Document Type
Conference Paper
Tobias, C. A. (California Univ. Berkeley, CA, United States)
Budinger, T. F. (California Univ. Berkeley, CA, United States)
Leith, J. T. (California Univ. Berkeley, CA, United States)
Mamoon, A. (California Univ. Berkeley, CA, United States)
Chapman, P. K. (California Univ. Berkeley, CA, United States)
Date Acquired
September 2, 2013
Publication Date
March 1, 1972
Publication Information
Publication: AGARD Spec. Biophys. Probl. in Aerospace Med., Pt. 3
Subject Category
Report/Patent Number
Distribution Limits
Work of the US Gov. Public Use Permitted.

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IDRelationTitleN72-26045 17-04Analytic Primary