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AbstractAbstract
[en] To determine neutron activation inside the TRIGA research reactor concrete body a special sample-holder for irradiation inside horizontal channel was developed and tested. In the sample-holder various samples can be irradiated at different concrete shielding depths. In this paper the description of the sample-holder, experiment conditions and results of long-lived activation measurements are given. Long-lived neutron-induced gamma-ray-emitting radioactive nuclides in the samples were measured with HPGe detector. The most active long-lived radioactive nuclides in ordinary concrete samples were found to be 60Co and 152Eu and in barytes concrete samples 60Co, 152Eu and 133Ba. Measured activity density of all nuclides was found to decrease almost linearly with depth in logarithmic scale. (author)
Primary Subject
Source
University of Pavia, Pavia (Italy); ENEA, Italian National Agency for New Technologies, Energy and the Environment, Rome (Italy); National Research Council, Rome (Italy); Fondazione Cariplo, Milan (Italy); General Atomics, San Diego, CA (United States); 281 p; 2002; 10 p; 1. world TRIGA users conference; Pavia (Italy); 16-20 Jun 2002; 10 refs, 6 figs, 3 tabs
Record Type
Report
Literature Type
Conference
Report Number
Country of publication
ALKALINE EARTH ISOTOPES, BARIUM ISOTOPES, BARYONS, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, BETA-PLUS DECAY RADIOISOTOPES, BUILDING MATERIALS, COBALT ISOTOPES, DAYS LIVING RADIOISOTOPES, DIMENSIONS, ELECTROMAGNETIC RADIATION, ELECTRON CAPTURE RADIOISOTOPES, ELEMENTARY PARTICLES, ENRICHED URANIUM REACTORS, EUROPIUM ISOTOPES, EVEN-ODD NUCLEI, FERMIONS, GE SEMICONDUCTOR DETECTORS, HADRONS, HOMOGENEOUS REACTORS, HOURS LIVING RADIOISOTOPES, HYDRIDE MODERATED REACTORS, INTERMEDIATE MASS NUCLEI, INTERNAL CONVERSION RADIOISOTOPES, IONIZING RADIATIONS, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MATERIALS, MEASURING INSTRUMENTS, MINUTES LIVING RADIOISOTOPES, NUCLEI, NUCLEONS, ODD-ODD NUCLEI, PHYSICAL PROPERTIES, RADIATION DETECTORS, RADIATIONS, RADIOISOTOPES, RARE EARTH NUCLEI, REACTORS, RESEARCH AND TEST REACTORS, SEMICONDUCTOR DETECTORS, SOLID HOMOGENEOUS REACTORS, WATER COOLED REACTORS, WATER MODERATED REACTORS, YEARS LIVING RADIOISOTOPES
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