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Description
STRESS-SPEC is designed as a state-of-the-art multi-purpose diffractometer for strain and texture analysis at FRM II. Besides the optimized high neutron flux the available large variability in gauge volume definition systems together with the robotic sample handling option offer high flexibility for spatial resolved diffraction measurements.
Recent developments focused on the enhancement of the STRESS-SPEC robotic system with an optical metrology setup that actively tracks and corrects the sample position with a spatial accuracy of better than 50 μm. Furthermore, the incoming slit system was upgraded using a heavy-duty hexapod positioner allowing precise alignment of the gauge volume with respect to the neutron beam axis and the sample center. Finally, we extended the sample environment suite of STRESS-SPEC with a new type of laser furnace and a light-weight tensile rig, both of which can be used with the robot. All these options will be available for the restart of the reactor in 2026.
