Search for dissertations about: "Synchrotron radiation study"

Showing result 1 - 5 of 71 swedish dissertations containing the words Synchrotron radiation study.

2. 1. Small science on big machines: Politics and practices of synchrotron radiation laboratories

   Author : Olof Hallonsten; Research Policy Institute (RPI); []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; big science; little science; sophistication; collectivization; European Synchrotron Radiation Facility; Stanford Synchrotron Radiation Lightsource; MAX-lab; scientific entrepreneurs; changing dynamics of science; Synchrotron radiation; research policy; science policy;

   Abstract : Synchrotron radiation laboratories are large scientific facilities where various scientific experiments are carried out by the use of radiation produced by particle accelerators. Research with synchrotron radiation emerged in the 1960s and 1970s as a peripheral activity at particle physics laboratories. READ MORE

4. 2. Optical Studies For Synchrotron Radiation Beamlines

   Author : Walan Grizolli; Lunds universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Synchrotron Radiation; Optics; X-ray Optics; Beamline; Polarimetry; Coherence; Storage Rings; Diffraction Limited Storage Rings;

   Abstract : Synchrotron radiation sources have greatly contributed to the progress in many fields of science. The development of the storage ring technologies has made possible to obtain very low emittance electron beams, which together with the use of undulators allow guiding a very high photon flux into a very small spot required by the experiments. READ MORE

5. 3. Synchrotron radiation study of free and adsorbed organic molecules

   Author : Teng Zhang; Carla Puglia; Nils Mårtensson; Svante Svensson; Mats Götelid; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Synchrotron radiation; Phthalocyanine; Cobalt phthalocyanine; Biphenylene; Functional materials; CoPc; Photoemission spectroscopy; Absorption spectroscopy; PES; XAS; Electronic structure; Gas phase; film; Organic molecule;

   Abstract : In this licentiate thesis, organic molecules, namely Cobalt Phthalocyanine (CoPc) and Biphenylene, have been studied by means of synchrotron radiation-based spectroscopic methods (Photoemission Spectroscopy (PES) and X-ray Absorption Spectroscopy (XAS) in combination with Density Functional Theory (DFT) calculations.Paper I is a combined experimental and theoretical investigation of electronic structure of CoPc. READ MORE

6. 4. Synchrotron radiation studies of gas phase molecules : from hydrogen to DNA sugars

   Author : Gemma Vall-llosera; Elisabeth Rachlew; Stacey Sorensen; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; KTH thesis; synchrotron radiation; gas phase; bio molecules; Atomic and molecular physics; Atom- och molekylfysik;

   Abstract : This thesis summarises experimental results on the molecular spectroscopy of gas phase molecules excited by synchrotron radiation in the VUV and soft X-ray regions. We have used three different detection techniques, photon induced fluorescence spectroscopy, photoionisation mass spectroscopy and near edge X-ray absorption fine structure spectroscopy to study molecular deuterium, hydrogen sulphide, ammonia, methanol, pyridine, pyridazine, pyrimidine, pyrazine, s-triazine, and 2-deoxy-D-ribose, the last one also known as the DNA sugar. READ MORE

7. 5. Photoelectron Spectroscopy on HCl and DCl : Synchrotron Radiation Based Studies of Dissociation Dynamics

   Author : Florian Burmeister; Eckart Rühl; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; Photoelectron spectroscopy; HCl; DCl; Dissociation dynamics; Born-Oppenheimer approximation; Synchrotron radiation; Fysik; Physics; Fysik; fysik; Physics;

   Abstract : Dissociation dynamics of the ionized molecules HCl and the deuterated system DCl has been studied in gas-phase using synchrotron based photoelectron spectroscopy (PES).The inner-valence "(4σ)-1" photoionization band for DCl and HCl was recorded using maximum resolution in order to probe an interference pattern between a dissociative and a bound electronic state. READ MORE