Mechanical design of CDF end plug optical system

The CDF End Plug at Fermilab is being upgraded to optical fiber technology. Fibers must extend from individual EM, Hadron and Shower Max pans within the plug to photomultiplier tubes mounted on the plug face. The entire system involves the organized splicing, coupling and routing of over 24000 optical fibers and 2000 source tubes per plug. Routing paths, methods of coupling and attachments of the fibers to the pans and plug are shown.