Search for dissertations about: "radium"

Showing result 1 - 5 of 13 swedish dissertations containing the word radium.

  2. 1. On the solubility of radium sulfate and carbonate

    Author : Artem Matyskin; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; dissolution; thermodynamics; radium sulfate; radium carbonate; solubility product; precipitation;

    Abstract : Radium is one of the most toxic elements and its concentration in different human activities and migration from man-made wastes provokes a strong interest in environmental science. To be able to model the migration process, reliable experimental thermodynamic data of radium compounds are needed. READ MORE

  4. 2. The radium distribution in some Swedish soils and its effects on radon emanation

    Author : Cecilia Edsfeldt; KTH; []
    Keywords : distribution; emanation; extraction; glacial till; podzol; Ra; radium; radon; Rn; sequential soil; spodosol; Th; thorium; U; uranium; variability;

    Abstract : The aim of this study has been to clarify how the radiumdistribution in soils affects the radon emanation. Thedistribution of radium, uranium and thorium has been determinedusing sequential extractions. In the study, soils from twodifferent locations were investigated. READ MORE

  5. 3. The mobility of natural uranium at Forsmark, Sweden, through geologic time

    Author : Lindsay Krall; Carl-Magnus Mörth; David Read; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; uranium; radium; mineralogy; geochronology; submarine groundwater discharge; spent nuclear fuel; geochemical modelling; Geology; geologi;

    Abstract : In this thesis, the response of uranium minerals and poorly crystalline phases to changes in geochemical conditions through geological time has been assessed in order to understand the mobility of natural uranium in the fracture network of a proposed site for a spent nuclear fuel repository in Forsmark, Sweden. Identification and characterization of solid phase uranium have been performed through electron microprobe analysis and optical petrography (Article I). READ MORE

  6. 4. Radium and Barium Co-precipitation A Pre-study

    Author : Hanna Hedström; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  7. 5. Radium sulphate and its co-precipitation behaviour with barium and strontium

    Author : Hanna Hedström; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE