For my setup, it is required that all electronics components and PCB are non-magnetic and also vacuum compatible. I searched on the net for a suitable electronics components that meets these two requirements, but I wasn't able to find a good solution. The standard electronics components, like resistors and capacitors have iron or nickel in it.
The requirement on vacuum compatibility can be solved by encapsulation the PCB and the electronics in epoxy (stycast). However, finding a PCB and electronics components that are not magnetized seems to be very difficult.
There must a solution for this, since electronics inside a MRI equipment should be shielded for EM waves too.
Does anyone have ideas to solve this problem. Thanks in advance for your time.