Sökning: "Roger Svensson"

Hittade 5 avhandlingar innehållade orden Roger Svensson.

  1. 1. A survey of the history, biology and preservation of some retreating synanthropic plants

    Författare :Roger Svensson; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Biologi;

    Sammanfattning : .... LÄS MER

  3. 2. Development of a compact high energy treatment unit combining narrow pencil beam scanning and multileaf collimation

    Författare :Roger Svensson; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  4. 3. Development of improved radiation therapy techniques using narrow scanned photon beams

    Författare :Björn Andreassen; Anders Brahme; Håkan Danared; Roger Svensson; Antony Lomax; Stockholms universitet; []
    Nyckelord :IMRT; Scanned photon beams; PET-CT treatment verification; Monte Carlo; NATURAL SCIENCES; NATURVETENSKAP; Medical Radiation Physics; medicinsk strålningsfysik;

    Sammanfattning : The present thesis is focused on the development and application of narrow scanned high energy photon beam for radiation therapy. The introduction of physically and biologically optimized intensity modulated radiation therapy (IMRT) requires a flexible and accurate dose delivery method to maximize the treatment outcome. LÄS MER

  5. 4. The wealth of regions : geographic concentration , entrepreneurship and regional growth

    Författare :Benny Borgman; Pontus Braunerhjelm; Roger Svensson; KTH; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economics; Nationalekonomi;

    Sammanfattning : This thesis consists of three individual essays and an introductory chapter. The essays contribute to the current vein of empirical literature on economic geography and entrepreneurship. LÄS MER

  7. 5. Biological optimization of angle of incidence and intensity modulation in breast and cervix cancer radiation therapy

    Författare :Brigida Costa Ferreira; Anders Brahme; Roger Svensson; Ion Christian Chiricuta; Stockholms universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; biological treatment planning; angle of incidence optimization; intensity modulation; breast and cervix cancer; Radiation biology; Strålningsbiologi;

    Sammanfattning : Biological treatment optimization aim at improving radiation therapy by accounting for the radiobiological tumour and normal tissues response properties when optimizing the dose delivery. Generally traditional methods, using only dosimetrical measures, disregard the nonlinear radiation response of different tumours and normal tissues. LÄS MER