![]() ![]() The value of /sup 152/Eu agrees within 20% of that calculated by Loewe. ![]() The specific radioactivity of /sup 152/Eu and /sup 154/Eu at the pillar surface was determined to have been 117 and 24 Bq per mg Eu, respectively, at the time of detonation. A concentration of stable Eu more » in the granite was determined by activation analysis. Two gamma rays of /sup 152/Eu, 122 keV and 344 keV, in each disk were measured using a low background, gamma-ray spectrometer, and the activity distribution was determined as a function of depth in the granite. One of the pillars was bored and 6.8-cm-diameter core samples were removed and cut into 2-cm-thick disks. The pillars each measured 82 cm in depth, 82 cm in width and 193 cm in height. The /sup 152/Eu activity depth profile of a granite pillar of the Motoyasu bridge located 132 m from the Hiroshima atomic bomb hypocenter was assessed. A-BOMB SURVIVORS DOSE EQUIVALENTS COBALT 60 ACTIVATION ENERGY CONCRETES FORECASTING HIROSHIMA HISTORICAL ASPECTS JAPAN MATHEMATICAL MODELS NEUTRONS ASIA BARYONS BETA DECAY RADIOISOTOPES BETA-MINUS DECAY RADIOISOTOPES BUILDING MATERIALS COBALT ISOTOPES ELEMENTARY PARTICLES ENERGY FERMIONS HADRONS HUMAN POPULATIONS INTERMEDIATE MASS NUCLEI INTERNAL CONVERSION RADIOISOTOPES ISOMERIC TRANSITION ISOTOPES ISOTOPES MATERIALS MINUTES LIVING RADIOISOTOPES NUCLEI NUCLEONS ODD-ODD NUCLEI POPULATIONS RADIOISOTOPES YEARS LIVING RADIOISOT 560151* - Radiation Effects on Animals- = Cl/Cl and obtain information about fast neutron fluence. (ORNL), Oak Ridge, TN (United States) Sponsoring Org.: USDOD OSTI Identifier: 7243377 Report Number(s): ORNL-6590 ON: DE90008018 TRN: 90-008445 DOE Contract Number: AC05-84OR21400 Resource Type: Technical Report Country of Publication: United States Language: English Subject: 63 RADIATION, THERMAL, AND OTHER ENVIRON. Publication Date: Research Org.: Oak Ridge National Lab. ![]()
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