I met with Casey and Peter last week to go over our electrical setup. Peter recommended some changes in how we make electrical ground connections, I did this yesterday. He also suggested smoothing our sample to reduce arcing as we were getting a higher stable field with out a sample present. This is likely due to the field enhancement on the sharp edge of our sample.
I just talked with John Nees about the controller and it sounds like a National Instruments USB controller will be suitable. We need two, one for each mirror, at $100 each. I will confirm the exact model with John and Peter then place the order.
