Antons comment:
"If we insert the LLNL imaging can in the system, could the experiment run with the beam off-centre? This could be done by swapping in a new front flange with an offset (slightly higher) beam entry port and lowering the whole chamber. Of course, we would need enough travel in the chamber support system to accomodate this (not a bad idea in the first place, to be able to place the FEL beam anywhere in the chamber). Plus it would be a good idea to have pitch and yaw control over the chamber itself (perhaps manual by turning screws, perhaps a 6-strut system?)"
the off-axis is a good idea, why did i not think of that option?
i have had a first contact with minitec in sweden today. unfortunately, they cannot provide us a micron positioning system. so we have to find something else.
