Sökning: "radionuclides"
Visar resultat 1 - 5 av 55 uppsatser innehållade ordet radionuclides.
1. Activity quantification of 177Lu using a 360◦ CZT gamma camera - comparison with a dual-head Anger camera
Master-uppsats, Lunds universitet/SjukhusfysikerutbildningenSammanfattning : Background and Aim: New SPECT cameras that use CZT detectors in a 360◦ configuration has recently been introduced. Together with Bayesian reconstruction methods employing Median Root Prior (MRP) and Relative Difference Prior (RDP), this constitutes an alternative to Anger-based SPECT for activity quantification. LÄS MER
2. Uptake and retainment of radionuclides in edible mushrooms – from fruiting to cooking
Master-uppsats,Sammanfattning : Purpose: The purpose of this study was to study the uptake, distribution and transfer of Mn-54, Zn-65, U-238, U-235, U-234, and Po-210 in mushrooms and their respective caps and stalks, the effects of chelates and ligands, and the potential release of radionuclides during a cooking procedure. Introduction: Fungi are organisms that are composed of a fruiting body (mushroom) and tubular hyphae, that branches out into complex networks called mycelium. LÄS MER
3. Models for estimating radiation dose and LAR from radioactive fallout: extended dose algorithms for the computational tool LARCalc
Master-uppsats,Sammanfattning : Today, emergency preparedness is needed against both nuclear reactor accidents and nuclear weapons fallout. Both scenarios can lead to exposure of ionizing radiation. Upon exposure, radionuclides will incur a radiation dose both internally and externally. LÄS MER
4. Accumulation of 63Ni, 106Ru and 125Sb in phytoplankton
Master-uppsats,Sammanfattning : Background: Nuclear Power Plants (NPPs) release small amounts of radionuclides which contribute with a low radiation dose to the environment as well as humans and animals. In this context, marine ecosystems are critical, since most NPPs in Sweden are located by the sea. LÄS MER
5. ESTIMATION OF RADIATION EXPOSURE FROM NATURALLY OCCURRING RADIONUCLIDES IN FOOD AND FOODSTUFF
Master-uppsats,Sammanfattning : Purpose: The main purpose of this study was to provide an estimation of the committed effective dose received by the Swedish population from naturally occurring radionuclides (NORM) in the diet. This study was also aiming to investigate the impact on the committed effective dose due to the new developments in the biokinetic model for Po 210 . LÄS MER