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Thermo Fisher Scientific

Sample jumps as stage is tilted


Sample jumps at different positions when stage is tilted .


Krios G3i


These are possible resolutions for the issue:

  • Replace the holder


These are possible causes for the issue:

  • Holder tip loosen


  1. Fix x donator. No improvement for sample jumping.
  2. Adjust the tightness of y donator. No improvement for sample jumping
  3. Check behavior when krios is warm. Issue disappears when scope is warmed up and returns back when system cool down.
  4. Check the stage securing bolts behind the half moons. Very tighten.
  5. Tap the stage. it slightly moves in the tap direction but stops Immediately. Floating rod is stable.
  6. Test with another holder, Sample doesn't jump at all. Check the holder and found the tip on the holder is loosen.


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