Feedthroughs provide for the 'in' and ‘out’ movement of elements, i.e., beam diagnostic components such as faraday cups, targets, viewing screens, harps, beam attenuators, capacitive pick-up probes, etc. The feedthrough is compatible with every standard diagnostic chamber. (Adaptations to special requirements are generally feasible.)
The moving parts of the feedthrough are guided by three sliding columns. The element to be moved is attached at the end of the compressed air actuator stem. Vacuum sealing is achieved by a membrane bellow. Cables and cooling pipes can be fed through the hollow moveable rod. Limit switches are provided to show the position of the element.