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PubMed · 4883465

Plutonium-238 in fallout.

T Mamuro·T Matsunami
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Abstract

The observed variation in the activity ratio of plutonium-238 to plutonium-239 plus plutonium-240 in rainwater in Japan over the period from 1961 through 1968 seems to indicate that the influence of the plutonium-238 released by the burnup of the nuclear auxiliary power generator (SNAP-9A) became noticeable within about 6 months and that variation in the isotope ratio with time is affected by nuclear debris produced in the latest explosions as well as by the plutonium-238 released from the SNAP-9A generator.

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ExplosionsHistory, 20th CenturyJapanPlutoniumRadioactive FalloutWaterHistorical ArticleJournal Article

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T Mamuro, T Matsunami. 1969-01-31. Plutonium-238 in fallout.. https://doi.org/10.1126/science.163.3866.465

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