Essays about: "thorium"

Showing result 1 - 5 of 9 essays containing the word thorium.

1. 1. Uptake and retainment of radionuclides in edible mushrooms – from fruiting to cooking

   University essay from

   Author : Delshad Mansour Ayoubi; [2022-12-06]
   Keywords : Medical physics; Activity concentration; Transfer coefficient; Dose;

   Abstract : 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. READ MORE

3. 2. Assessing the controls of the fluoride concentrations in the groundwater of Gothenburg area

   University essay from Göteborgs universitet/Institutionen för geovetenskaper

   Author : Crayton Enga Bessong; [2022-11-04]
   Keywords : Fluoride; Groundwater; Fluorite; Solubility; Fluorosis; Idefjorden Terrane;

   Abstract : The human uptake of fluoride can promote healthy teeth in low concentration (1.5 mg/l). Drinking water is a major route to which we humans are expose to fluoride intake. READ MORE

4. 3. Experimental studies at CERN-nTOF of the 230Th(n,f) reaction

   University essay from Uppsala universitet/Tillämpad kärnfysik

   Author : Felicia Lapinski; [2020]
   Keywords : fission; neutron induced fission; fission cross section; fission fragment angular distribution; thorium;

   Abstract : This work investigates the feasibility to perform an experiment at CERN n_TOF to study the fission cross section and fission fragment angular distribution (FFAD) of the 230Th(n,f) reaction. An analysis of fission fragment energy losses in the experimental target resulted in a choice of target thickness of 0. READ MORE

5. 4. Virtual Studies of Nuclear Fission : A comparison of n- and p- induced fission using GEF

   University essay from Uppsala universitet/Tillämpad kärnfysik

   Author : Dany Gabro; [2017]
   Keywords : Fission; proton induced; neutron induced; GEF; uranium; neptunium; thorium; protaktinium;

   Abstract : A General Description of Fission Observables (GEF) version 2016/1.2 is a software which simulates various types of fission. The main objective of this project is to compare the proton induced fission with the neutron induced fission of the same fissioning system. The proton induced fission was recently introduced to GEF and is relatively untested. READ MORE

6. 5. Understanding igneous processes through zircon trace element systematics : prospects and pitfalls

   University essay from Lunds universitet/Geologiska institutionen

   Author : Marín Ósk Hafnadóttir; [2014]
   Keywords : plagioclase fractionation. zirkon; hydrothermal alteration; precambrian; zircon; Ghana; hydrotermal-omvandling; plagioklasfraktionering; Earth and Environmental Sciences;

   Abstract : Zirkon från magmatiska bergarter extraherades från fem granitoider i Birimianterrängen i Ghana., och detritala zirkoner provtogs från sex platser i centrala Västgrönland. Av dessa härrör en population från palaeoproterozoikum i Prøvens magmatiska komplex. READ MORE