Aron, Arthur ABSORPTION CURVE OF PALLOUT PRODUCTS. Acedenia de 28, %23-5 (1956) (In English). Aron, Arthur; and Gross, Bernhara RADIOACTIVITY OF AIR CAUSED BY NUCLEAR BOMB TESTS. fur 128, 9ee-§5 (19597) Daily checks of radioactive fallout at the above institute (Instituto Nacional de Tecnologia, Rio de Janeiro) gave an activity 10 times as high as the average on June 25, 1957. By applying the decay law for fallout of Way and Wigner the origin could be traced to the British H-bomb test at Christmas Island on May 15, 1957. By autoradiography of the filter it was shown that the high activity was caused by only one highly radioactive particle. Bechert, K. THEORY OF RADIOACTIVE POISONING BY MILITARY ATOMIC TESTS. Atcnkern-Energie 3, S+-8 (1958) (In German). The poisoning which occurs during the continuation of atomic tests is distinguished from that occurring later. The earth and body poisoning and the quantity of radiation causing poisoning of critical organs are calculated. The calculation is simplified by the assumption that during the tests the fallout is continuous. With unlimited continuation of atomic tests, earth and body | poisoning approach a stable limiting value, which depends. on the amount of the fallout. After discontinuance of the tests, the earth and body poisoning first rises to its highest value and then sinks. Application of the equations to the question of Sr90 poisoning gives come plete authorization for warnings about continuation of atomic tests. Bell, Carlos G. NUCLEAR LONG-RANGE FALLOUT IN SURFACE WATERS. Journal of the Sanitary Engineering Division, Exgocedingsof Society 1957). » 1400-1~21 -.-Based in part on samples from the National Bureau of Standards, rather extensive calibration measurements indicated a fallout beta (disintegrations) / (count rate) ratio of 2.8 p » curies per count per minute for the water samples. The average of the mest radioactive set of surface water samples collected in eastern Massachusetts following November, 1952, Eniwetok detona- tions registered 6.9 counts per minute per liter cr 0.02 p p curies per milliliter. (Cont'd)

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