Sökning: "Radioekologi"

Visar resultat 1 - 5 av 6 uppsatser innehållade ordet Radioekologi.

  1. 1. Radioktivt cesium (Cs-137) i vildsvin (Sus scrofa) från Tjernobyldrabbade områden i Sverige

    Kandidat-uppsats, SLU/Dept. of Soil and Environment

    Författare :Emilie Hallqvist; [2013]
    Nyckelord :Cs-137; vildsvin; vildsvinskött; Tjernobylolyckan; radioekologi; strålning;

    Sammanfattning : In April 1986 an accident occurred at the nuclear power station in Chernobyl. Radionuclides were spread all over Europe including Sweden. Today there are still measurable concentrations of 137Cs in the different ecosystems in the contaminated parts of Sweden. LÄS MER

  3. 2. Resultat av tjugofem års mätningar av Cs-137-halter i älg i Uppsala län

    Magister-uppsats, SLU/Dept. of Soil and Environment

    Författare :Robert Weimer; [2011]
    Nyckelord :cesium; älg; radioekologi; strålning; Tjernobylolyckan; älgkött; Heby;

    Sammanfattning : At the end of April 1986 reactor number 4 of the nuclear power plant at Chernobyl explod-ed and large amounts of radioactive particles were then released into the atmosphere due to both the explosion as well as the consecutive fire of the graphite core. A cloud of radioac-tivity was spread over the northern hemisphere, including Sweden, due to the prevailing wind directions. LÄS MER

  4. 3. Collimation technique for HPGe-detector gamma spectrometry in intense radiation fields

    Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen

    Författare :Mattias Jönsson; [2010]
    Nyckelord :Radioekologi; Medicine and Health Sciences;

    Sammanfattning : The aim of this master thesis was to develop a rotation-based collimation system for large coaxial high-purity germanium detectors for use in intense radiation fields. A collimator was constructedformed as a cylinder surrounding the detector, with a 90° slit opening to the detector. LÄS MER

  5. 4. 137Cesium i myrsamhällen i Gävleborgs län 24 årefter Tjernobylolyckan

    Kandidat-uppsats, SLU/Dept. of Soil and Environment

    Författare :Linnea Brandström ; [2010]
    Nyckelord :radioekologi; myror; myrstackar; stråldos; cesium-137; Gävle; Tjernobylolyckan;

    Sammanfattning : 24 years have passed since the Chernobyl accident when radionuclides were spread over largeareas of Europe, including the Scandinavian countries. Today, measurable activities of 137Csare still observed in many Swedish ecosystems. LÄS MER

  7. 5. Using the LaBr3Ce scintillation detector for mobile gamma-spectrometry

    Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen

    Författare :Jonas Nilsson; [2010]
    Nyckelord :Radioekologi; Medicine and Health Sciences;

    Sammanfattning : When doing mobile gamma-spectrometry the equipment has for severaldecades been limited to NaI(Tl) and Ge-based detectors. Recent developements has led to a possible replacement of NaI(Tl)-based systems in the form of a new scintillation material: LaBr3:Ce (cerium doped lanthanum bromide). LÄS MER