Search for dissertations about: "Beam delivery"

Showing result 1 - 5 of 32 swedish dissertations containing the words Beam delivery.

  2. 1. Mixed Beam Dosimetry - From Reactor Core to BNCT Patient

    Author : Per Munck af Rosenschöld; Lund Medicinsk strålningsfysik; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; BNCT; dosimetry; radiotherapy; mixed beam; quality assurance; in vivo dosimetry; Monte Carlo; ionization chamber; foil activation; MCNP; beam quality correction factor; photon transmission.; Nukleärmedicin; radiobiology; Nuclear medicine; radiobiologi; Radiofarmaceutisk teknik; Radiopharmaceutical technology;

    Abstract : Accurate radiation dosimetry is of paramount importance in order to ensure safe delivery of radiotherapy, and for the possibility of meaningful evaluation of clinical trials, as the radiation absorbed dose is correlated to tissue response. The aim of the studies described in this thesis was to investigate and devise novel approaches to mixed beam dosimetry in boron neutron capture therapy (BNCT). READ MORE

  4. 2. Beam Modelling for Treatment Planning of Scanned Proton Beams

    Author : Peter Kimstrand; Bengt Glimelius; Erik Traneus; Nina Tilly; Anders Ahnesjö; Thomas Bortfeld; Uppsala universitet; []
    Keywords : Radiation sciences; proton therapy; treatment planning; beam modelling; dose calculation; Monte Carlo; Strålningsvetenskap;

    Abstract : Scanned proton beams offer the possibility to take full advantage of the dose deposition properties of proton beams, i.e. the limited range and sharp peak at the end of the range, the Bragg peak. READ MORE

  5. 3. Development of analytical transport methods for biologically optimized light ion therapy

    Author : Johanna Kempe; Anders Brahme; Irena Gudowska; Naruhiri Matsufuji; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Radiotherapy; radiation quality; energy-range relations; light ion transport; pencil beam; Monte Carlo; Physics; Fysik; medicinsk strålningsfysik; Medical Radiation Physics;

    Abstract : A general objective in the treatment of cancer is to eradicate the tumour cells without inducing severe complications in healthy normal tissue. The use of light ions for radiation therapy increases the possibility to deliver tumour suicidal doses with very low probability of normal tissue injury, not least in cases where the target is unresectable, radioresistant and located to near organs at risk. READ MORE

  6. 4. Patient Outcomes after Radiotherapy of Prostate Cancer. Impact of Absorbed Dose and Treated Volume

    Author : Elisabeth Rasmusson; LUCC: Lunds universitets cancercentrum; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Prostate cancer diagnosis; radiotherapy; brachytherapy; external beam; Dose- response; side effects; erectile dysfunction; lymphedema; hip osteoarthritis; Fractionation;

    Abstract : Abstract Backgound Prostate cancer is the most common form of cancer in men in Sweden. Radiotherapy, including external beam radiation therapy (EBRT) and brachytherapy (BT), is important treatment alternatives to surgery and active surveillance. READ MORE

  7. 5. Structure evolution of phase-separated EC/HPC films for controlled drug release

    Author : Pierre Carmona; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; electron microscopy; coarsening; cellulose; phase separation kinetics; drug delivery; phase separation mechanisms; porous film; biopolymer; controlled drug release; confocal laser scanning microscope; spin-coating.;

    Abstract : Porous phase-separated ethylcellulose/hydroxypropylcellulose (EC/HPC) films are used to control drug transport out of pharmaceutical pellets. The drug transport rate is determined by the structure of the porous films that are formed as the water-soluble HPC leaches out. READ MORE