Search for dissertations about: "radiation safety Dissertation"

Showing result 1 - 5 of 61 swedish dissertations containing the words radiation safety Dissertation.

  1. 1. Ensuring the intended volume is given the intended absorbed dose in radiotherapy: Managing geometric variations and treatment hazards

    University dissertation from Department of Radiation Physics, Lund university

    Author : Ola Holmberg; Lund University.; Lunds universitet.; [2004]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; medical instrumentation; tomography; radiology; Clinical physics; safety; risk; hazard; organ motion; set-up; margins; volume definition; radiotherapy; accuracy; Klinisk fysiologi; radiologi; tomografi; medicinsk instrumentering; Radiopharmaceutical technology; Radiofarmaceutisk teknik;

    Abstract : Methods for ensuring that the intended volume receives the intended absorbed dose in radiotherapy have been investigated. In order to optimise radiation treatment of cancer, geometric variations in the treatment chain need to be controlled. Furthermore, hazards potentially leading to unintended irradiation need to be controlled. READ MORE

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

    University dissertation from Stockholm : Fysik

    Author : Johan Carlsson; KTH.; [2003]
    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

  3. 3. Radiation Induced Oxidative Dissolution of UO2

    University dissertation from Stockholm : KTH

    Author : Ella Ekeroth; KTH.; [2006]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; radiation; radiolysis; UO2; spent nuclear fuel; radicals; oxidants; reductants; rate constants; dissolution; H2O2; H2; TECHNOLOGY Chemical engineering Chemical process and manufacturing engineering Nuclear chemistry; TEKNIKVETENSKAP Kemiteknik Kemisk process- och produktionsteknik Kärnkemi;

    Abstract : SammanfattningDenna 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

  4. 4. Ultraviolet Radiation Cataract

    University dissertation from Stockholm : Karolinska Institutet, Dept of Clinical Neuroscience

    Author : Konstantin Galichanin; Karolinska Institutet.; Karolinska Institutet.; [2012]

    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

  5. 5. Trauma - Diagnostics and Triage

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Fredrik Linder; Uppsala universitet.; [2018]
    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