Today's activity: repairing an ion mill!

Wasn't pumping down, suspected the internal diaphragm pump needed new seals. Still bad with my other pumps so I started replacing tubing, tightening fittings and applying vac grease to seals.

Unsure where the leak was, but fixed now! Will let it pump for a while and see what the final pressure is. From what I can gather, should end up somewhere in the neighborhood of e-6 torr

#microscopy #ionmill #gatan #sem #electronmicroscopy #highvacuum