Polishing the ground plate

. dinsdag 25 oktober 2011
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Did some polishing last weekend, here is picture of the ground plate, nice and shiny:

The ground plate will have two 1-pole, two 8-pole and one 4-pole feedthrough.
Also tried to fix the mass spectrometer, still have the problem that after bake-out all the QMG064 sensors fail.
I tried to clean the grid with fine quartz powder and ultrasound cleaning, no effect at all..... to be continued.

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