Sökning: "Accelerator Driven System"

Visar resultat 16 - 17 av 17 avhandlingar innehållade orden Accelerator Driven System.

  1. 16. CHALMEX FS-13 investigations for process implementation

    Författare :Thea Lyseid Authen; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Transmutation; SolventExtraction; CHALMEX; Partitioning; GANEX;

    Sammanfattning : From successive neutron absorption by uranium in nuclear reactors, transuranic elements such as neptunium, plutonium, americium and curium are produced. These elements are the main reason for the long-lived, highly radiotoxic and heat-producing nature of spent nuclear fuel. LÄS MER

  3. 17. Transmutation of Americium in Fast Neutron Facilities

    Författare :Youpeng Zhang; Janne Wallenius; Sandra Dulla; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; americium; transmutation; fast reactor; Nuclear physics; Kärnfysik; TECHNOLOGY; TEKNIKVETENSKAP;

    Sammanfattning : In this thesis, the feasibility to use a medium sized sodium cooled fast reactor fully loaded with MOX fuel for efficient transmutation of americium is investigated by simulating the safety performance of a BN600-type fast reactor loaded with different fractions of americium in the fuel, using the safety parameters obtained with the SERPENT Monte Carlo code. The focus is on americium mainly due to its long-term contribution to the radiotoxicity of spent nuclear fuel and its deterioration on core's safety parameters. LÄS MER