Video camera for use in high magnetic field

[John Dobbins via Tech-talk <tech-talk at aps.anl.gov>]

All,

This isn't an EPICS question but I know there is also vast collective knowledge of non-EPICS instrumentation issues.

At CHESS we are constructing a high magnetic field x-ray beamline. A sample view camera, if placed outside the 5 gauss line is essentially an astronomical telescope, to provide ~ 10 um resolution at 5 meters.

If we had something compatible with magnetic fields, i.e has no magnetic material, it could be placed much closer to the sample.

Gige cameras typical have ethernet magnetics.

One could imagine a USB camera. These typically have DC-DC converters which use ferrite inductors or transformers.

I could imagine building a camera from scratch which gets around these issues ( e.g. liner regulators)

But I am fishing for advice.

Thanks,

John Dobbins

Research Support Specialist

Cornell High Energy Synchrotron Source

Cornell University

www.chess.cornell.edu