Heavy Cosmic Ray Primaries
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Heavy Cosmic Ray Primaries
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The positively charge nuclei of elements heavier than hydrogen and helium
up to atomic nuclei of iron. See cosmic
rays.
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These heavy atomic nuclei comprise about 1 percent of the total
cosmic-ray particles and less than 4 percent of the total positive charges.
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References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use