Sökning: "Göran Possnert"
Visar resultat 1 - 5 av 8 avhandlingar innehållade orden Göran Possnert.
1. In beam measurements of nuclear electromagnetic moments and hyperfine fields
Sammanfattning : .... LÄS MER
2. Secondary and Higher Order Structural Characterization of Peptides and Proteins by Mass Spectrometry
Sammanfattning : The work in this thesis has demonstrated the advantages and limitations of using MS based technologies in protein and peptide structural studies. Tandem MS, specifically electron capture dissociation (ECD) have shown the ability to provide structural insights in molecules containing the slightest of all modifications (D-AA substitution). LÄS MER
3. Accelerator Mass Spectrometry of 36Cl and 129I : Analytical Aspects and Applications
Sammanfattning : Two long-lived halogen radionuclides (36Cl, T1/2 = 301 kyr, and 129I, T1/2 = 15.7 Myr) have been studied by means of Accelerator Mass Spectrometry (AMS) at the Uppsala Tandem Laboratory. The 36Cl measurements in natural samples using a medium-sized tandem accelerator (~1 MeV/amu) have been considered. LÄS MER
4. Influence of solar activity and environment on 10Be in recent natural archives
Sammanfattning : Understanding the link between the Sun and climate is vital in the current incidence of global climate change, and 10Be in natural archives constitutes an excellent tracer for this purpose. As cosmic rays enter the atmosphere, cosmogenic isotopes like 10Be and 14C are formed. LÄS MER
5. Anthropogenic 129I Traced in Environmental Archives by Accelerator Mass Spectrometry
Sammanfattning : Since the beginning of the nuclear era, starting during the 1940s, large amount of radioactivity has been released into the environment. This thesis deals with the temporal and spatial distribution of the anthropogenic radioisotope 129I (T1/2= 15.7 Myr) in northern Europe. LÄS MER