X-Ray Tomography Stage for Cryogenic Samples

The setup of the x-ray tomography stage, located at the P06 beamline of PETRA III at DESY (Germany) allows to investigate samples that require both cooling and vacuum environment.

The sample is positioned using a stacked system of three standard, vacuum-compatible, PI linear stages for XYZ with a 360 degree rotation stage on top. Fine alignment of the sample in XYZ axes is done with an assembly of proprietary piezo motor stages that are equally vacuum-compatible. The setup allows for cooling the sample to the level of liquid nitrogen.

In addition to the motion and positioning elements, also the vacuum feedthroughs were designed and manufactured by PI.