Language: English Journal Announcement: Subfile: TIC EDB8101 (Technical Information Center). Country of Origin: France Abstract: An unknown radioactive substance, of a 25- hr half life period, was recorded in July-August, 1946, by an ionization chamber at 6000 m altitude (from an airplane), the content measured being about 2 x 10/sup -18/ curie. m, the content In July to August, found was much lower 1948, at altitudes 7300 to 8700 (0.005 to 0.02 curie). It is surmised that the phenomenon might be traced to the atomic bomb explosion at Bikini on July 1, 1946. Other hypotheses are meteoric origin or a nuclear reaction due to cosmic rays.; Major Descriptors: *EARTH ATMOSPHERE -- RADIOACTIVITY Descriptors: AERIAL MONITORING; AIRCRAFT; BIKINI; COSMIC RADIATION; HALF-LIFE; IONIZATION CHAMBERS; METEOROIDS; NUCLEAR EXPLOSIONS; NUCLEAR REACTIONS Broader Terms: EXPLOSIONS; IONIZING RADIATIONS; ISLANDS; MARSHALL ISLANDS; MEASURING INSTRUMENTS; MICRONESIA; MONITORING; OCEANIA; RADIATION DETECTORS; RADIATIONS Subject Categories: 500300* -- Environment, Atmospheric -- Radioactive Materials Monitoring & Transport -- (-1989) 450200 -- Military Technology, Weaponry, & National Defense -- Nuclear Explosions & Explosives 10/5/846 (Item 546 from file: 103) 00703731 EDB-81-011981 Title: Evolution of atmospheric radioactivity in Paris region Author(s): Abribat, (In French) Source: C. R. Hebd. M.; Pouradier, Seances Acad. J.; Sci. Publication Date: 1953 p 2310-2312 Document Type: Journal Article Language: French Journal Announcement: EDB8101 Subfile: TIC (Technical Venet, A.M. (France) v 240. Coden: COREA Information Center). Country of Origin: France Abstract: Daily measurements of radioactivity have shown the passage of many atomic clouds, and particularly the series of explosions in the US and Russia, while those in the Pacific and Australia have been identified in Milan. For the Australian explosion in October 1953, there was no radioactive increase in the air in the Paris region, while for the Pacific explosion there were measurable fluctuations but very feeble. For the Russian explosions in August 1954, the fluctuations were much greater than for the Pacific ones.; Major Descriptors: *EARTH ATMOSPHERE -- RADIOACTIVITY; *FRANCE -- RADIATION MONITORING Descriptors: AUSTRALIA; FALLOUT; MARSHALL ISLANDS; NEVADA TEST SITE; NUCLEAR EXPLOSIONS; RADIOACTIVE CLOUDS; USSR “ Broader Terms: ASIA; AUSTRALASIA; CLOUDS; EASTERN EUROPE; EUROPE; EXPLOSIONS; ISLANDS; MICRONESIA; MONITORING; OCEANIA; WESTERN EUROPE Subject Categories: 500300* -- Environment, Atmospheric -- Radioactive Materials Monitoring & Transport -- (-1989) -- Military Technology, Weaponry, 10/5/847 (Item 547 from file: & National Defense -- Nuclear 103) 00703727 EDB-~-81-011977 Title: Radioactive ashes on the fifth Fukuryu-Maru, the fishing boat that suffered from the hydrogen bomb test on March 1, Author(s): Kimura, K. Source: Kagaku (Tokyo) (Japan) v 24. Publication Date: 1954 p 300-302 Document Type: Journal Article Language: English Coden: Journal Announcement: EDB8101 Subfile: TIC (Technical Information Center). KAGTA 1954 9083994 450200 Explosions & Explosives