Radioactivity in interplanetary dustIcarus - Tập 2 - Trang 54 - 1963
Wasson John T.
Most of the radioactivity in interplanetary dust in the region of the Earth's
orbit results from interactions with solar protons. The most abundant nuclides
having half-lives longer than a few hours in a dust of chondritic composition
are Co56, Fe55, Al26, Mn53, Co55, C14, Na22, and Co57. The measurement of ratios
of dust radionuclides can provide a means of measuring various time parameters.
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