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Visar resultat 1 - 5 av 99 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. The microdosimetric variance-covariance method used for beam quality characterization in radiation protection and radiation therapy

    Författare :Jan Erik Lillhök; Lennart Lindborg; Bernd Grosswendt; Stockholms universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; ionizing radiation; radiation quality; radiation protection; radiation therapy; microdosimetry; nanodosimetry; variance-covariance method; Radiological physics; Radiofysik; medicinsk strålningsfysik; Medical Radiation Physics;

    Sammanfattning : Radiation quality is described by the RBE (relative biological effectiveness) that varies with the ionizing ability of the radiation. Microdosimetric quantities describe distributions of energy imparted to small volumes and can be related to RBE. LÄS MER

  3. 2. Radiation tests of semiconductor detectors

    Författare :Valery Chmill; Bengt Lund-Jensen; Richar Brenner; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; radiation physics; materials science; Nuclear physics; Kärnfysik;

    Sammanfattning : This thesis investigates the response of Gallium Arsenide (GaAs) detectors to ionizing irradiation. Detectors based on π-υ junction formed by deep level centers doping. LÄS MER

  4. 3. Fabrication and Characterization of Photon Radiation Detectors

    Författare :Claes Mattsson; Hans-Erik Nilsson; Göran Thungström; Mikael Lindeberg; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Thermal Detectors; Posistion Sensitive Detectors; Electronics; Elektronik;

    Sammanfattning : This thesis involves a study the fabrication and characterization of photon radiation detectors. The focus has been to develop and improve the performance of optical measurement systems, but also to reduce their cost. The work is based on the study of two types of detectors, the position sensitive detector and the thermal detector. LÄS MER

  5. 4. Pixel Detectors and Electronics for High Energy Radiation Imaging

    Författare :Munir Abdalla; KTH; []
    Nyckelord :readout electronics; X-ray Imaging; pixel detectors; CMOS APS; photon counting;

    Sammanfattning : .... LÄS MER

  7. 5. Radiation and radionuclide measurements at radiological and nuclear emergencies. Use of instruments and methods intended for clinical radiology and nuclear medicine

    Författare :Ünal Ören; Malmö Medicinsk strålningsfysik; []
    Nyckelord :radiological and nuclear emergencies; detectors; imaging modalities; clinical radiology; nuclear medicine;

    Sammanfattning : .... LÄS MER