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Attenuation of gamma rays in a few types of heavy concrete

Conference · · Transactions of the American Nuclear Society; (United States)
OSTI ID:7022105
Heavy concrete can generally be produced using heavy aggregates. Because of its high density, the material would have higher linear gamma and neutron attenuation characteristics than ordinary concrete. Several types of heavy ores abundantly available in Saudi Arabia were mixed with sand, cement, and water to produce several types of heavy concrete whose gamma attenuation properties were studied. The heavy ores selected were basalt pyrite (FeS{sub 2}), barite (BaSO{sub 4}), hematite (Fe{sub 2}O{sub 3}), and marble (CaCO{sub 3}) these ores are usually found mixed with other ores or compounds. Pyrite can be found with pyrhotite (FeS) and a small quantity of calcopyrite (CuFeS{sub 2}) and sphalerite (ZnS) in addition to traces of lead, gold, and silver. Barite contains a small quantity of calcopyrite (CuFeS{sub 2}), galena (PbS), and quartz (SiO{sub 2}). Hematite ores may be found with goethite (HFeO{sub 2}) and magnitite (FeFe{sub 2}O{sub 3}). Elemental analysis of hematite shows that ores contain mostly iron with silicon with smaller quantities of aluminum, calcium, manganese, and sulfur. Marble may be found mixed with dolomite (CaCO{sub 3}{center dot}MgCO{sub 3}) in addition to trace quantities of other compounds.
OSTI ID:
7022105
Report Number(s):
CONF-911107--
Conference Information:
Journal Name: Transactions of the American Nuclear Society; (United States) Journal Volume: 63
Country of Publication:
United States
Language:
English

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