Synchrotron radiation mirrors for high intensity beam lines

Most of the recently established synchrotron beam lines need optical components which are able to withstand high total heat loads. High beam power densities have to be tolerated without decreasing the optical quality. New mirror materials such as SiC and Si have been introduced into the optics manufacturer's workshop, being in principle ideal for high quality optical surfaces. On the other hand, they are causing new problems resulting mainly from inherent material properties. Several possibilities of manufacturing mirrors for high intensity beam lines are discussed in this paper and related problems and possible solutions shown. Special remark is made on mirrors manufactured from a graphite core with chemical vapor deposition-SiC coating