In the grazing incidence X-ray scattering system, it is necessary to align the in-plane rotation axis of the sample stage and the normal of the substrate. Since the thin film structure such as polymers is formed on the substrate, it is necessary to complete the alignment while keeping low X-ray dose. We examined an alignment method using the arrival time mode of the timepix.
The purpose of this beamtime was to observe difference-frequency generation of optical radiation from two-color x-ray pulses and to explore the possibility to use it as a method for the study of light matter interactions at atomic scale resolution. The experiment followed a detailed theoretical analysis of the effect [1]. We did not measure difference frequency generation during that beamtime due to technical challenges.