Author: I. Feier
Institution: Argonne National Laboratory
Co-Author: H. Friedsam, M. Penicka
The Poisson Alignment Reference System
Fourth Generation Light Sources demand tight positioning tolerances over long periods of time. In 1987 L. Griffith from LLNL proposed to utilize the poisson spot created by a sphere in the beam path of coherent light for the alignment and long term monitoring of an FEL. This poster shows the principal of such a system, first results and how it can be applied to a linear accelerator.