Sökning: "radiation dosimetry"

Visar resultat 6 - 10 av 80 avhandlingar innehållade orden radiation dosimetry.

  1. 6. ESR dosimetry in the radiation therapy dose range : development of dosimetry systems and sensitive dosimeter materials

    Författare :Sara Olsson; Bartolomieij Ciesielski; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : ESR dosimetry with L-α-alanine as a dosimeter material is a well known and frequently used method for measuring high absorbed doses, for example at sterilisation and food irradiation. The increased sensitivity of modem spectrometers and an increased knowledge of the radiochemical properties of alanine have lowered the detection limit of ESR/alanine dosimetry to the dose range relevant for radiation therapy. LÄS MER

  3. 7. Dosimetry of Local Radio Frequency Exposure

    Författare :Rudolf Kopecky; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; subgridding; FDTD; rats; head; SAR; dosimetry; inner ear labyrinth; mobile phone;

    Sammanfattning : Finite-difference time-domain (FDTD) is a popularcomputational electrodynamics modelling technique. It has been widelyused, from radar cross section computations through electromagneticcompatibility investigations to modelling of electromagnetic exposurein biological tissues. LÄS MER

  4. 8. Development of tissue-equivalent CVD-diamond radiation detectors with small interface effects

    Författare :Bartosz Górka; Bo Nilsson; José M. Fernández-Varea; Anders Brahme; Hugo Palmans; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; CVD-diamond detector; tissue-equivalent encapsulation; dosimetry; Monte Carlo simulation; Physics; Fysik; medicinsk strålningsfysik; Medical Radiation Physics;

    Sammanfattning : Due to its close tissue-equivalence, high radiation sensitivity, dose and dose-rate linearity, diamond is a very promising detector for radiation therapy applications. The present thesis focuses on the development of a chemical vapour deposited (CVD) diamond detector with special attention on the arrangement of the electrodes and encapsulation having minimal influence on the measured signal. LÄS MER

  5. 9. Pharmacokinetics and dosimetry in intraperitoneal radioimmunotherapy with 211At

    Författare :Elin Cederkrantz; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; astatine-211; radioimmunotherapy; alpha-emitter; ovarian cancer; MX35; pharmacokinetics; dosimetry; effective dose;

    Sammanfattning : The prognosis for patients diagnosed with disseminated cancer is often poor. Radioimmunotherapy (RIT) is a new approach to treat disseminated disease. The aim is to target tumor cells with monoclonal antibodies (mAbs) labeled with radionuclides which release cytotoxic particle radiation upon decay. The radionuclide 211At, with half-life 7. LÄS MER

  7. 10. Optically Stimulated Luminescence for Retrospective Radiation Dosimetry. The Use of Materials Close to Man in Emergency Situations

    Författare :Therése Geber-Bergstrand; Malmö Medicinsk strålningsfysik; []
    Nyckelord :Retrospective dosimetry; Emergency dosimetry; OSL;

    Sammanfattning : If an accident or attack involving radiological or nuclear material were to happen, people from the general public would be at risk of exposure to ionising radiation. Unlike people working with ionising radiation, for whom level of exposure to radiation is constantly monitored with dosemeters, people from the general population do not wear dosemeters; thus, the dose estimations for these individuals must be performed using alternative methods. LÄS MER