Sökning: "X-ray lasers"
Visar resultat 21 - 25 av 69 avhandlingar innehållade orden X-ray lasers.
21. The Role of Molecular Heterogeneity in the Structural Dynamics of Aqueous Solutions
Sammanfattning : The liquid-liquid critical point hypothesis suggests that liquid water exists in two liquid states with different local structures, so-called high- and low-density liquid (HDL, LDL). At ambient pressure water locally fluctuates between these two states, with the fluctuations becoming more pronounced as the liquid is supercooled. LÄS MER
22. Towards Fast and Robust Algorithms in Flash X-ray single-particle Imaging
Sammanfattning : Modern X-ray Free Electron Laser (XFEL) technology provides the possibility to acquire a large number of diffraction patterns from individual biological nano-particles, including proteins, viruses, and DNA. Ideally, the collected data frames are high-quality single-particle diffraction patterns. LÄS MER
23. Nuclear Dynamics in Linear and Non-linear X-ray Processes
Sammanfattning : New generations of brilliant synchrotron radiation sources and intense X-ray and optical lasers have opened unprecedent opportunities in linear and non-linear spectroscopies of molecules. This together with new instrumentation calls for further development of theory to explain observations and suggest new experiments. LÄS MER
24. Flash Diffractive Imaging in Three Dimensions
Sammanfattning : During the last years we have seen the birth of free-electron lasers, a new type of light source ten billion times brighter than syncrotrons and able to produce pulses only a few femtoseconds long. One of the main motivations for building these multi-million dollar machines was the prospect of imaging biological samples such as proteins and viruses in 3D without the need for crystallization or staining. LÄS MER
25. Laser-Driven Plasma Waves for Particle Acceleration and X-ray Production
Sammanfattning : This thesis presents experimental results related to laser plasma accelerators. These rely on very different principles from conventional particle accelerators. LÄS MER