Search for dissertations about: "effective dose rate"

Showing result 1 - 5 of 88 swedish dissertations containing the words effective dose rate.

  2. 1. Short and long-term effects of exposure to low dose and low dose rate of gamma radiation : using in vitro and in vivo models

    Author : Traimate Sangsuwan; Siamak Haghdoost; Eva Forssell-Aronsson; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Low dose; Low dose rate; High dose rate; Ionizing radiation; Adaptive response; Senescence; Premature senescence; Oxidative stress; Drosophila embryo; Mutation; DNA repair; molekylär biovetenskap; Molecular Bioscience;

    Abstract : Assessment of human health risks from exposure to ionizing radiation (IR) is mainly based on the extrapolation of results from epidemiological studies on populations exposed to relatively high doses and often at high dose rates (HDR). Risk estimates after exposure to low doses and in particular at low dose rates (LDR) remain controversial due to a lack of epidemiological evidence. READ MORE

  4. 2. Adolescent Idiopathic Scoliosis. The Role of Low Dose Computed Tomography

    Author : Kasim Abul-Kasim; Malmö Diagnostisk radiologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; low-dose spine CT; effective dose; screw misplacement; adolescent idiopathic scoliosis; outcome.; titanium screws; image quality; neurovascular complication; phantom;

    Abstract : Continuous implementation of new operative methods for correction and stabilization of spinal deformities in young patients with AIS demands a detailed morphological analysis of the vertebral column. CT spine according to protocols available in daily clinical practice means high radiation dose to these young individuals. READ MORE

  5. 3. Aspects of dose, dose rate and radioisotopes in brachytherapy of uveal melanoma

    Author : Maria Fili; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Uveal melanomas constitute melanomas arising from the choroid, the ciliary body or the iris, and in adults stands for the most common primary malignant intraocular tumor. It has a high risk of metastatic spread followed by inevitable death, and unfortunately the prognosis has not improved over the last decades. READ MORE

  6. 4. Radiation exposure of human populations in villages in Russia and Belarus affected by fallout from the Chernobyl reactor

    Author : Christian Bernhardsson; Malmö Medicinsk strålningsfysik; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Chernobyl; caesium; effective dose; OSL; NaCl; TL; LiF; radiation protection survey instruments; deposition variability; long-term series;

    Abstract : A quarter of a century has elapsed since the catastrophe at the nuclear power plant in Chernobyl. The radioactive fallout affected all the European countries and most severely the three countries of Belarus, Russia and Ukraine. READ MORE

  7. 5. Factors modifying cellular response to ionizing radiation

    Author : Lei Cheng; Andrzej Wojcik; Siamak Haghdoost; Lovisa Lundholm; Penelope A. Jeggo; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Radiation biology; DNA damage; gene expression; alpha particles; X-rays; mixed beams; gamma rays; hypothermia; dose rate.; molekylär biovetenskap; Molecular Bioscience;

    Abstract : Many physical factors influence the biological effect of exposure to ionizing radiation, including radiation quality, dose rate and temperature. This thesis focuses on how these factors influence the outcome of exposure and the mechanisms behind the cellular response. READ MORE