Search for dissertations about: "safety Radiation"

Showing result 1 - 5 of 74 swedish dissertations containing the words safety Radiation.

  2. 1. Inherent Safety Features and Passive Prevention Approaches for Pb/Bi-cooled Accelerator-Driven Systems

    Author : Johan Carlsson; KTH; []
    Keywords : Inherent Safety; Passive Safety; Accelerator-Driven Systems; ADS; nuclear waste; emergency decay heat removal; natural convection; thermal radiation;

    Abstract : This thesis is devoted to the investigation of passivesafety and inherent features of subcritical nucleartransmutation systems - accelerator-driven systems. The generalobjective of this research has been to improve the safetyperformance and avoid elevated coolant temperatures inworst-case scenarios like unprotected loss-of-ow accidents,loss-of-heat-sink accidents, and a combination of both theseaccident initiators. READ MORE

  4. 2. Radiation Induced Oxidative Dissolution of UO2

    Author : Ella Ekeroth; Mats Jonsson; Bernd Grambow; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; radiation; radiolysis; UO2; spent nuclear fuel; radicals; oxidants; reductants; rate constants; dissolution; H2O2; H2; Nuclear chemistry; Kärnkemi;

    Abstract : Sammanfattning Denna doktorsavhandling berör oxidativ upplösning av UO2 (som modellsubstans för utbränt kärnbränsle) orsakad av radiolys av vatten samt effekten av H2 på denna denna process. Hastighetskonstanter för oxidation av UO2-pulver med olika oxidanter såsom H2O2 har bestämts experimentellt. READ MORE

  5. 3. Ultraviolet radiation cataract

    Author : Konstantin Galichanin; Karolinska Institutet; Karolinska Institutet; []
    Keywords : lens;

    Abstract : Cataract is the leading cause of blindness in the world. Epidemiological and experimental evidence supports a link between mid-range ultraviolet radiation (UVR-B) exposure and the development of cataract. READ MORE

  6. 4. Trauma - Diagnostics and Triage

    Author : Fredrik Linder; Kevin Mani; Hampus Eklöf; Claes Juhlin; Martin Björck; Pål Aksel Naess; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; wounds and injuries; trauma; triage; whole body computed tomography in trauma; compliance; radiation exposure; CT; radiation safety; Surgery; Kirurgi;

    Abstract : Trauma is a leading cause of death worldwide and it reduces years of productive life and leads to disability. Effective trauma care relies on triage, which aims to ration the use of fine resources to patients with the greatest needs. READ MORE

  7. 5. Radiation Detection Techniques for the Enhancement of Nuclear Safety

    Author : Petty Bernitt Cartemo; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; whole body counting; depth profiling; voxel phantom; nuclear safeguards; Monte Carlo; orphan sources; radiation-induced material damage; pulsed beam; positron lifetime;

    Abstract : The hazard originating from the use of nuclear materials in various areas of the society necessitates a number of experimental techniques for controlling and increasing the safety connected to radioactive substances.The following thesis is divided into two parts, representing different aspects to the detection of radiation effects. READ MORE