SXSPM Research | Highlights

Mechanical engineering design for next prototype aimed at challenging vibration background

The most important constraint for the operation of a scanning probe at the synchrotron is the need for mechanical isolation of the microscope head from the APS environment. The APS has a relatively quiet ground vibration environment, though the ground vibration can be amplified by the resonances of the instrument support structure. Measurements of the noise level revealed that the system vibrations exceeded recommendation in some areas of the frequency spectrum and were relatively close in others. A passive vibration isolation stage was selected to address the vibration problem. The mount has soft springs providing good attenuation above the mounting frequency of a few hertz and eddy-current damping, providing sufficient attenuation at resonance.

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