Studies of X-Ray Optics And Polarimetry For Synchrotron Radiation

Abstract: Synchrotron radiation sources have greatly contributed to the progress in many fields of science. The development of the storage ring technologies have made possible to obtain very low emittance electron beams, which together with the use of undulators allow to guide a very high photon flux into a very small beam size required by the experiments. Development of sources has been accompanied with equally strong progress in beamline optics, improving further the experiments and opening new possibilities in science. This follows from the fact that beamlines have to transport the photon beam from the source to the experiment while conserving the beam quality and the photon flux of the source as good as possible. This work uses basics concepts of X-ray optics to develop beamlines and beamline instrumentation. First, a beamline design that uses astigmatism is discussed. This project takes advantage of the low vertical emittance of the MAX~II storage ring to improve the flexibility of soft X-ray beamlines. Secondly a polarimeter is introduced, a device that characterizes the polarization of the light at the experimental station. In this part a novel method is presented for analyzing the polarimeter data. For these studies the source properties, X-ray interaction with matter together with geometrical and wave optics are needed, and these concepts are also presented here.