Search Results - "Madruga, M.J"

Quality control assurance of strontium-90 in foodstuffs by LSC by Lopes, I., Mourato, A., Abrantes, J., Carvalhal, G., Madruga, M.J., Reis, M.

“…A method based on the separation of Sr-90 by extraction chromatography and beta determination by Liquid Scintillation Counting (LSC) technique was used for…”
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Radioactivity in the environment around past radium and uranium mining sites of Portugal by Carvalho, F.P., Madruga, M.J., Reis, M.C., Alves, J.G., Oliveira, J.M., Gouveia, J., Silva, L.

“…Measurements of ambient radiation doses and determination of radionuclide concentrations in mining waste and soils were performed in 60 areas of former radium…”
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Solid phase speciation of radiocaesium in bottom sediments by Wauters, J., Madruga, M.J., Vidal, M., Cremers, A.

“…A comprehensive laboratory study is presented on the solid-phase speciation of ionic radiocaesium in bottom sediments (riverine, lacustrine, estuarine)…”
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Redistribution of Cs 137 introduced into montmorillonite in association with organic matter coming from biomass composting by Mihalik, J., Madruga, M.J., Casimiro, M.H., Ferreira, L.M., Prudêncio, M.I.

“…The adsorption and later bioavailability of 137Cs from the system humic acid (HA)/humic acid like compounds (HALC) and montmorillonite was investigated. The…”
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Internal effective dose assessment for the public based on the environmental radioactivity data in Portugal by Madruga, M.J., Gomes, A.R., Abrantes, J., Santos, M., Andrade, E., Mourato, A., Libânio, A., Reis, M.

“…The objective of this work is to estimate the internal effective dose to the Portuguese population due to the radionuclides inhalation (through the air) and…”
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The influence of particle size on radionuclide activity concentrations in Tejo River sediments by Madruga, M.J., Silva, L., Gomes, A.R., Libânio, A., Reis, M.

“…Sediment samples from Tejo River were analyzed for 228Ra, 226Ra, 137Cs and 40K by HPGe gamma spectrometry. The activity concentration data were statistically…”
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Environmental radioactivity monitoring in Portugal by Madruga, M.J.

“…Environmental radioactivity monitoring in Portugal is a nationwide programme that consists of two complementary (sparse and dense) sampling networks…”
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Characterization of geomaterials from NE Portugal using [k.sub.0]-based instrumental neutron activation analysis and gamma spectrometry methods by Reis, M, Freitas, M.C, Dung, H.M, Mateus, A, Paiva, I, Madruga, M.J, Goncalves, M.A, Silva, L, Dionisio, I

“…The main objective of this study is the elemental characterization of geomaterial samples ("soils" and Ranas), collected between 2007 and 2008, in the Morais…”
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The "AQUASCOPE" simplified model for predicting 89, 90Sr, 131l and 134, 137Cs in surface waters after a large-scale radioactive fallout by Smith, J.T, Belova, N.V, Bulgakov, A.A, Comans, R.N.J, Konoplev, A.V, Kudelsky, A.V, Madruga, M.J, Voitsekhovitch, O.V, Zibolt, G

“…Simplified dynamic models have been developed for predicting the concentrations of radiocesium, radiostrontium, and 131I in surface waters and freshwater fish…”
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226Ra bioavailability to plants at the Urgeiriça uranium mill tailings site by Madruga, M.J, Brogueira, A, Alberto, G, Cardoso, F

“…Large amounts of solid wastes (tailings) resulting from the exploitation and treatment of uranium ore at the Urgeiriça mine (north of Portugal) have been…”
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A comparative study of radiocesium mobility measurements in soils and sediments from the catchment of a small upland oligotrophic lake (Devoke Water, U.K.) by Comans, R.N.J., Hilton, J., Voitsekhovitch, O., Laptev, G., Popov, V., Madruga, M.J., Bulgakov, A., Smith, J.T., Movchan, N., Konoplev, A.

“…The mobility of radiocesium was studied in a number of soil and sediment cores collected from the Devoke Water catchment. Samples were subjected to a range of…”
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A comparative study of radiocesium mobility measurements in soils and sediments from the catchment of a small upland oligotrophic lake (Devoke Water, U.K.)1In memoriam: This paper is dedicated to the memory of Dr. Vladimir Borzilov. A good friend and an enthusiastic initiator of our joint research.1 by Comans, R.N.J., Hilton, J., Voitsekhovitch, O., Laptev, G., Popov, V., Madruga, M.J., Bulgakov, A., Smith, J.T., Movchan, N., Konoplev, A.

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