Publication Date: 1958 Coden: ATPXA Note: 444-48 p. 0571-8198 Journal Announcement: NSA13 Document Type: Journal Article Language: German t The present study is bansd on the information which has been revealed concerning the extent of contamination in the fall-out area of a 15 megaton hydrogen bomb (Bikini test, March 1, 1954). On the basis of these data the protection afforded by bunkers and house cellars against the gamma ’ radiation of fall-out is estimated. In addition, the optimal length of stay in shelters.is calculated, i.e., the time at which the shelter and the fall-out area must be abandoned if the radiation dose is to be kept at a minimum. The results obtained point out the necessity of decontaminating traffic routes in fallout areas. (auth) Descriptors: BUILDINGS; CONTAMINATION; DECONTAMINATION; FALLOUT; RADIATION; HYDROGEN; NUCLEAR EXPLOSIONS; RADIATION DOSES; RADIATION PROTECTION; RADIOACTIVITY; SHELTERS Subject Codes 10/5/222 096249 (NSA): HEALTH AND SAFETY (Item 222 from file: NSA-13-002882 109) THE OCCURRENCE OF ANTIMONY-125, EUROPIUM-155, RADIONUCLIDES IN RONGELAP ATOLL SOIL Palumbo, R.F.; Lowman, F.G. Washington. GAMMA Univ., Seattle. Publication Date: Apr. 7, 1958 IRON-55, AND OTHER Applied Fisheries Lab. 27 p. Primary Report No.: UWFL-56 Journal Announcement: NSA13 Availability: NTIs Document Type: Report Language: English Contract No.: AT(45-1)540 BS> Soil samples from Rongelap Atoll were analyzed for radionuclide content. Using ion-exchange methods, a detailed study was made of a soil sample collected in a bird nesting area at Kabelle Island in July 1957. Two radioisotopes, antimony-125 and europium-155, not previously reported in samples from the Pacific Proving Ground were found and their identity was verified by radiochemical precipitation techniques. The radionuclides contributing most of the radioactivity were Ce/sup 144/-Pr/sup 144/ and Fe/sup 55/, a non-fission product. Other radionuclides present in much smaller amounts included Ru/sup 106/-Rh/sup 106/, Sr/sup 90/-Y/sup 90/, Cs/sup 137, Mn/sup 54/, Co/ sup 6 0/, Zr/sup 95/-Nb/sup 95/, Co/sup 57. (auth). Descriptors: ANTIMONY 125; BIRDS; CERIUM 144; CESIUM 137; COBALT 57; COBALT 60; EUROPIUM 155; FISSION PRODUCTS; ION EXCHANGE; IRON 55; MANGANESE 54; NIOBIUM 95; PRECIPITATION; RADIOACTIVITY; RADIOCHEMISTRY; RUTHENIUM 106 7 SOILS; STRONTIUM 90; YTTRIUM 90; ZIRCONIUM 95 ~ Subject Codes (NSA): HEALTH AND SAFETY (Item 223 from file: NSA-13-002881 109) RADIOBIOLOGICAL STUDIES OF THE FISH COLLECTED AT RONGELAP AND AILINGINAE ATOLLS JULY 1957 Welander, A.D. Washington. Univ., Seattle. Publication Date: Mar. 5, 1958 Primary Report No.: UWFL-55 Journal Announcement: NSA13 Availability: NTIS Document Type: Report Language: English Contract No.: Applied Fisheries Lab. 33 p. AT(45-1)540 J003b04 10/5/223 096248 Radiobiological analysis of the reef fishes of Rongelap and Ailinginae Atolls indicated that a recontamination of the area occurred in 1956. Gross levels of beta activity in muscle tissue ranged from 0.016 to 0.038 mu