ScienceJohn Michels (Journalist) 1957 |
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Стр. 219
... 90 ( half - life 28 years ) . Libby ( 3 ) has discussed the general problem of strontium - 90 in fallout and has presented considerable data ( 4,5 ) on the concen- tration of this isotope in various parts of the chain from the ...
... 90 ( half - life 28 years ) . Libby ( 3 ) has discussed the general problem of strontium - 90 in fallout and has presented considerable data ( 4,5 ) on the concen- tration of this isotope in various parts of the chain from the ...
Стр. 220
... strontium - 90 fractionation at long distances from test sites , Eisenbud and Harley ( 1 ) calcu- lated fallout of 13 millicuries per square mile for the United States in late 1955. By comparing the average total fallout on gummed paper ...
... strontium - 90 fractionation at long distances from test sites , Eisenbud and Harley ( 1 ) calcu- lated fallout of 13 millicuries per square mile for the United States in late 1955. By comparing the average total fallout on gummed paper ...
Стр. 224
... strontium - 90 calcium ratio in the diet . An estimate of the world - wide burden can be made by assuming that the aver- age total strontium - 90 fallout was 8 milli- curies per square mile in 1955 , and that the average amount of ...
... strontium - 90 calcium ratio in the diet . An estimate of the world - wide burden can be made by assuming that the aver- age total strontium - 90 fallout was 8 milli- curies per square mile in 1955 , and that the average amount of ...
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