Speaker
Marie LABAT
(SOLEIL)
Description
In the frame of SOLEIL-II, we have attempted preliminary tests on SOLEIL-I of low vertical emittance measurements based on the standard pinhole camera imaging system. However, we rapidly faced an unexpected issue: the perturbation of the measurement by some "filaments". It seems that those filaments are due to a parasitic phase contrast imaging induced by our UHV Aluminium window. We will report on the characterization of those filaments, also observed at DLS and ESRF-EBS, the first solutions tested and our strategy to avoid such perturbation on SOLEIL-II.
