Before approaching, it is important to check the Approach and Feedback settings so the R9 Controller
and microscope behave as expected. Open the Approach Procedures Panel, it should look like the
following figure. Selecting the * to the right of the Procedure name will open that Procedure in Procedure
Space.
Figure F.3. AFM/STM Beetle Approach Procedure Panel
A quick explanation of the preloaded Approach Procedures:
• Beetle Single Step In: The R9 Controller will switch the PPC200 to Z-AFM and the AFM scan head will
make a single coarse step towards the sample. This can be useful for fine adjustments.
• Beetle Single Step Out: The R9 Controller will switch the PPC200 to Z-AFM and the AFM scan head
will make a single coarse step away from the sample. This is also useful for fine adjustments.
• Beetle Fast In: The Fast In Procedure is used to rapidly approach the tip to the sample. There will be
no feedback checks during the Fast In so it is important to monitor the tip-sample separation
(perhaps with a camera) while this Procedure is running.
• Beetle Fast Out: The Fast Out Procedure is used to rapidly retract the tip from the sample by a
predefined number of steps.
• *Z Beetle Approach Slow*: This is the typical Approach Procedure to use when the probe is closer to
the sample. The tip can be pulled back between the coarse approach steps to help protect it from
accidental contact with the sample.
F.2.2.1. Beetle Single Step In
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