Search for dissertations about: "Radiolysis"

Showing result 1 - 5 of 47 swedish dissertations containing the word Radiolysis.

  2. 1. Effects of radiolysis on the dynamics of UO2-dissolution

    Author : Ella Ekeroth; KTH; []
    Keywords : UO2; spent nuclear fuel; radiolysis; H2O2; H2; oxidation; dissolution; reduction; rate constants; modeling;

    Abstract : .... READ MORE

  4. 2. Homogeneous radiolysis studies using 238Pu

    Author : Lovisa Bauhn; Chalmers tekniska högskola; []
    Keywords : gas mass spectrometry; alpha-radiolysis; plutonium oxidation;

    Abstract : Used nuclear fuel contains radiotoxic elements with lifetimes in the range of 100 000 years. Although possibilities for recycling of the fuel exist, a final storage for the ultimate high-level waste will be necessary. READ MORE

  5. 3. The effect of radiolysis of BTBP type molecules on distribution ratios

    Author : Anna Fermvik; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; radiolysis; transmutation; partitioning; BTBP; solvent extraction; lanthanides; actinides;

    Abstract : Partitioning and transmutation of spent nuclear fuel enables a decrease in the long term radiotoxicity and volume of the waste to be disposed. By transforming the long-lived nuclides into shorter-lived or even stable ones, the time required for a final repository to be regarded safe for the environment can decrease from 100,000 years to less than 1,000 years. READ MORE

  6. 4. Oxidative dissolution of UO2 by α-radiolysis

    Author : Niklas Hansson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; hydrogen effect; kinetics; MOX; α-radiolysis; dose rate; UO2; ε-particles;

    Abstract : To prevent the spread of radiotoxic nuclides in the environment, spent nuclear fuel generated by decades of nuclear power operation must be safely stored for at least 100 000 years. The KBS-3 method is a highly developed deep geological repository concept and is the first final repository design for high-level nuclear waste to be constructed. READ MORE

  7. 5. Iodine-Metal Surface Interactions under Severe Accident Conditions in a Nuclear Power Plant

    Author : Henrik Glänneskog; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; containment; reactive metals; BWR; adsorption; iodine; radiolysis;

    Abstract : In the event of a severe nuclear reactor accident, iodine will be released from the fuel and eventually enter the containment. Radioactive iodine isotopes constitute both an acute and a long-term threat to humans, owing to its half-life and its accumulation in the thyroid gland. READ MORE