Sökning: "28Si"
Visar resultat 1 - 5 av 7 avhandlingar innehållade ordet 28Si.
1. Fragmentation in Proton-Nucleus Reactions from 100 to 1400 MeV
Sammanfattning : The heaviest fragments, recoils, have been studied in proton and deuteron induced 28Si reactions and proton-20Ne reactions at 100-300 MeV per nucleon. Inclusive charge and angular distributions and coincidences between He nuclei and recoils have been compared to two theoretical models, Dubna Cascade Model and JAERI Quantum Molecular Dynamics. LÄS MER
2. Reaction Cross Section Measurements for p,d,3He and 4He at Intermediate Energies
Sammanfattning : Reaction cross sections were measured for protons at 65.5 MeV, for deuterons at 37.8, 65.5, 97. LÄS MER
3. Ion Beam Analysis of First Wall Materials Exposed to Plasma in Fusion Devices
Sammanfattning : One major step needed for fusion to become a reliable energy source is the development of materials for the extreme conditions (high temperature, radioactivity and erosion) caused by hot plasmas. The main goal of the present study is to use and optimise ion beam methods (lateral resolution and sensitivity) to characterise the distribution of hydrogen isotopes that act as fuel. LÄS MER
4. Investigations of Reaction Cross Sections for Protons and 3He
Sammanfattning : The reaction cross section gives the probability that a particle will undergo a nonelastic process when passing through a nuclear medium. Therefore reaction cross section data are of importance both for theoretical studies and for applications in such diverse fields as medicine, biology, astrophysics and accelerator-driven transmutation of nuclear waste. LÄS MER
5. Atom Probe Tomography of TiSiN Thin Films
Sammanfattning : This thesis concerns the wear resistant coating TiSiN and the development of the analysis technique atom probe tomography (APT) applied to this materials system. The technique delivers compositional information through time-of-flight mass spectrometry, with sub-nanometer precision in 3D for a small volume of the sample. LÄS MER