Search for dissertations about: "radiation protection dissertation"

Showing result 6 - 10 of 72 swedish dissertations containing the words radiation protection dissertation.

  1. 6. Daphnids adaptive strategies to UV radiation

    University dissertation from Lund University, Faculty of Engineering

    Author : Carla Eloisa Fernández; Lunds universitet.; Lund University.; [2018-04]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Cladocera; Zooplankton; Andean lakes; Daphnia; Ultraviolet radiation; Migration strategy; Photo-protection;

    Abstract : This thesis focuses on the adaptive strategies of daphnids that allows them to maintain stable populations while deal with UV radiation, highlighting the differences in the responses that populations with different evolutionary histories may have.Although exposition to lethal doses in nature is unlikely, sub-lethal UV-B radiation doses may have strong impacts on zooplankton. READ MORE

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

    University dissertation from Medical Radiation Physics, Lund University

    Author : Christian Bernhardsson; Lunds universitet.; Lund University.; [2011]
    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 : Popular Abstract in Swedish Människan har alltid exponerats för joniserande strålning från radioaktiva ämnen i naturen och i sin egen kropp, samt från kosmisk strålning. Summan av exponeringen från dessa strålkällor blir ungefär 1 mSv per år. READ MORE

  3. 8. Energy and intensity modulated radiation therapy with electrons

    University dissertation from Umeå : Umeå universitet

    Author : Lennart Olofsson; Umeå universitet.; [2005]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Radiation sciences; Radiation therapy; Conformal therapy; IMRT; Electrons; Electron treatment head; Electron MLC; Bremsstrahlung reduction; Integral dose; Penumbra; Output factor; Strålningsvetenskap; MEDICINE Physiology and pharmacology Radiological research Radiation biology; MEDICIN Fysiologi och farmakologi Radiologisk forskning Strålningsbiologi; radiofysik; radiofysik;

    Abstract : In recent years intensity modulated radiation therapy with photons (xIMRT) has gained attention due to its ability to reduce the dose in the tissues close to the tumour volume. However, this technique also results in a large low dose volume. READ MORE

  4. 9. Intestinal Mucosa Reconstitution and Protection: Impact of Luminal Factors

    University dissertation from Department of Surgery, Clinical Sciences Lund, Lund University

    Author : Yilei Mao; Lunds universitet.; Lund University.; [1997]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Probiotics; Pectin; Oat; Methotrexate; Lactobacilli; Intestinal injury; Intestinal immunity; Intestinal barrier; Enterocolitis; Fiber; Radiation; Surgery; orthopaedics; traumatology; Kirurgi; ortopedi; traumatologi;

    Abstract : The gastrointestinal mucosa is one of the most rapidly proliferating tissues in the body, and serves as a barrier to luminal bacteria and toxins. Enteral nutrition, luminal fiber and probiotics are of crucial importance for the integrity of this barrier. READ MORE

  5. 10. Development and characterization of sensitive, energy-independent solid-state photon dosemeters with high spatial and temporal resolution. Applications in clinical radiology and radiation protection

    University dissertation from Lund University, Faculty of Medicine

    Author : Lars Herrnsdorf; Lunds universitet.; Lund University.; [2018]
    Keywords : Si PIN; sensor; detector; dosemeter; CT; CBCT; dose profile; CTDP; R100; SiPM; Medipix; MCNP; AM; 4π detector; ACA; flex card micro assembly;

    Abstract : AbstractModern medicine and health care rely on a variety of diagnostic and therapeutic equipment and methods that involve ionizing radiation. To guarantee quality and the safety of patients and staff, advanced radiation detectors and dosemeters are needed that have low energy and operate with directional independence for X-ray and γ-ray photons. READ MORE