Sökning: "Positron annihilation spectroscopy"
Visar resultat 11 - 13 av 13 avhandlingar innehållade orden Positron annihilation spectroscopy.
11. Radiation Detection Techniques for the Enhancement of Nuclear Safety
Sammanfattning : The hazard originating from the use of nuclear materials in various areas of the society necessitates a number of experimental techniques for controlling and increasing the safety connected to radioactive substances.The following thesis is divided into two parts, representing different aspects to the detection of radiation effects. LÄS MER
12. Wood hydrolysates- New concepts in renewable material design
Sammanfattning : Wood hydrolysates (WHs) are biomasses obtained in processes involving hydrothermal treatments of wood. WHs are rich in hemicelluloses and lignin. Instead of complicated extraction processes, such as precipitation, or extensive purification, this work utilizes the crude WHs. LÄS MER
13. Hydrogen diffusion and ion implantation in silicon carbide
Sammanfattning : Secondary ion mass spectrometry (SIMS) has been employed tostudy the spatial distributions resulting from mass transportby diffusion and ion implantation in single crystal siliconcarbide (SiC). By a systematic analysis of this data,fundamental processes that govern these phenomena have beenderived. LÄS MER