The CXI sample chambers are home to a large number of EPICS controllable motorized stages, usually driven by stepper or piezo type actuators. Motors and other in-vacuum electronics within the sample chambers are interfaced to external electronics in atmosphere using flange panels with straight-through M-M DB9 feedthrough connectors. A typical flange at CXI has its connectors arranged in two columns, with one column designated for motor phase/power and the other for motor encoder power and readback. In-vacuum stages at CXI are custom wired to connect to the vacuum chamber flanges.
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Remember to wear clean gloves and a lab coat before working with components in CXI's vacuum chambers. |
(Picture of an SC1 or SC3 motor and its cables to flange)
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(Picture of VT-50) (Picture of PP30)
Controllers for these motors are mounted in various locations on the beamline. Dumb stepper motor stages are controlled by LCLS motor controllers, while other stages may be