Ceramics and Composite Materials

Ceramics help to solve several very challenging problems which are common in particle accelerators and x-ray science experiments. From providing electrical isolation and multipin vacuum feed throughs to magnetically transparent vacuum chambers, ceramics are the ideal material. In this presentation author will give an overview of some of the common uses of ceramics at NSLS-II as well as some of the more specialized ceramic vacuum chambers. Author will also go over some of the recent coating developments at Brookhaven which use DC magnetron sputtering to apply a thin layer of titanium to ceramic chambers. This film provides a conductive layer for the image currents generated by the stored particle beam while minimizing Eddy currents produced by the fast pulsing magnets required for beam injection.