Search for dissertations about: "RT thesis topics"

Showing result 1 - 5 of 11 swedish dissertations containing the words RT thesis topics.

  2. 1. Radiobiological end-points for the theoretical evaluation of the effectiveness of carbon ions and photons in treating tumours with dynamic hypoxia

    Author : Antonovic Laura; Iuliana Toma-Dasu; Tatsuaki Kanai; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; OER; hypoxia; LOC; RCR; hypofractionation; SBRT; carbon ion; fractionation; TCP; SF; RCE; RBE; Medical Radiation Physics; medicinsk strålningsfysik;

    Abstract : Tumours are characterised by unorganised vasculature, which often results in hypoxic regions. Hypoxia is a common cause for photon radiotherapy (RT) treatment failure, as hypoxic cells require up to 2-3 times higher doses compared to well-oxygenated cells for the same effect in terms of cell kill. READ MORE

  4. 2. Comparative study of Radiation Therapy of Targets in the Upper Abdomen with Photon- or Scanned Proton-beams

    Author : Gracinda Mondlane; Albert Siegbahn; Michael Gubanski; Iuliana Toma-Dasu; Crister Ceberg; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; photon radiotherapy; proton beam radiotherapy; gastric cancer; liver metastases; Medical Radiation Physics; medicinsk strålningsfysik;

    Abstract : Recently, there has been an increase in the number of proton beam therapy (PBT) centers operating worldwide. For certain cases, proton beams have been shown to provide dosimetric and radiobiological advantages when used for cancer treatment, compared to the regular photon-beam based treatments. READ MORE

  5. 3. Helical tomotherapy for total marrow and total skin irradiation : Optimisation, verification, and clinical results

    Author : André Änghede Haraldsson; Lund Medicinsk strålningsfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ALL; Leukemia; radiotherapy; hematology; Oncology; Leukemia; radiotherapy; Tomotherapy; Oncology; ALL;

    Abstract : In modern cancer therapy, radiotherapy (RT) is a vital part of most treatments. Most RT treatments in Sweden are performed using intensity-modulated radiotherapy (IMRT) with fixed or dynamic arc delivery. The dose gradients outside the target are steep, the margins are small, and the treatment delivery is complicated. READ MORE

  6. 4. A database of single scattering properties for hydrometeors at microwave and sub-millimetre frequencies

    Author : Robin Nils Ekelund; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; sub-millimetres; Hydrometeors; microwaves; clouds; single scattering properties; satellites.; remote sensing; water vapour;

    Abstract : Remote sensing observations of hydrometeors (ice or liquid water particles) at microwave and sub-millimetre wavelengths provide important input to numerical weather forecasting through data assimilation and give insight to cloud processes that are relevant for climate prediction. The utilization of such measurements requires information on the single scattering properties (SSP), i. READ MORE

  7. 5. Applied problems and computational methods in radiative transfer

    Author : Magnus Neuman; Per Edström; Daniel Åberg; Mittuniversitetet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Light scattering in turbid media is essential for such diverse applications as paperand print, computer rendering, optical tomography, astrophysics and remote sensing.This thesis investigates angular variations of light reflected from plane-parallelturbid media using both mathematical models and reflectance measurements, dealswith several applications and proposes novel computational methods for solving thegoverning equations. READ MORE